./kernelbenchhardv3runscodex · ?
codex / ? session: ? cwd: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm
harness
codex
model
?
turns
118
tools called
98
events
222
input toks
4,844,056
output toks
33,512
cache hit
4,669,824
solution.py
final answer
benchmark.log
check.log
result.json
import torch
import torch.nn as nn
import triton
import triton.language as tl


@triton.jit
def _patch_embed_kernel(
    x,
    weight,
    y,
    total_patches: tl.constexpr,
    patches_per_batch: tl.constexpr,
    C: tl.constexpr,
    T: tl.constexpr,
    H: tl.constexpr,
    W: tl.constexpr,
    kT: tl.constexpr,
    kH: tl.constexpr,
    kW: tl.constexpr,
    To: tl.constexpr,
    Ho: tl.constexpr,
    Wo: tl.constexpr,
    embed_dim: tl.constexpr,
    K: tl.constexpr,
    BLOCK_M: tl.constexpr,
    BLOCK_N: tl.constexpr,
    BLOCK_K: tl.constexpr,
):
    pid_m = tl.program_id(0)
    pid_n = tl.program_id(1)

    offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)
    offs_n = pid_n * BLOCK_N + tl.arange(0, BLOCK_N)

    b = offs_m // patches_per_batch
    local_m = offs_m - b * patches_per_batch
    ot = local_m // (Ho * Wo)
    rem = local_m - ot * (Ho * Wo)
    oh = rem // Wo
    ow = rem - oh * Wo

    acc = tl.zeros((BLOCK_M, BLOCK_N), tl.float32)

    for k0 in range(0, K, BLOCK_K):
        offs_k = k0 + tl.arange(0, BLOCK_K)
        c = offs_k // (kT * kH * kW)
        kr = offs_k - c * (kT * kH * kW)
        kt = kr // (kH * kW)
        kr = kr - kt * (kH * kW)
        kh = kr // kW
        kw = kr - kh * kW

        x_t = ot[:, None] * kT + kt[None, :]
        x_h = oh[:, None] * kH + kh[None, :]
        x_w = ow[:, None] * kW + kw[None, :]
        x_offsets = ((((b[:, None] * C + c[None, :]) * T + x_t) * H + x_h) * W + x_w)
        w_offsets = offs_n[None, :] * K + offs_k[:, None]

        a = tl.load(
            x + x_offsets,
            mask=(offs_m[:, None] < total_patches) & (offs_k[None, :] < K),
            other=0.0,
        )
        wv = tl.load(
            weight + w_offsets,
            mask=(offs_k[:, None] < K) & (offs_n[None, :] < embed_dim),
            other=0.0,
        )
        acc += tl.dot(a, wv)

    y_offsets = (
        b[:, None] * (embed_dim * patches_per_batch)
        + offs_n[None, :] * patches_per_batch
        + local_m[:, None]
    )
    tl.store(
        y + y_offsets,
        acc,
        mask=(offs_m[:, None] < total_patches) & (offs_n[None, :] < embed_dim),
    )


@triton.jit
def _patch_embed_kernel_em(
    x,
    weight,
    y,
    total_patches: tl.constexpr,
    patches_per_batch: tl.constexpr,
    C: tl.constexpr,
    T: tl.constexpr,
    H: tl.constexpr,
    W: tl.constexpr,
    kT: tl.constexpr,
    kH: tl.constexpr,
    kW: tl.constexpr,
    To: tl.constexpr,
    Ho: tl.constexpr,
    Wo: tl.constexpr,
    embed_dim: tl.constexpr,
    K: tl.constexpr,
    BLOCK_E: tl.constexpr,
    BLOCK_M: tl.constexpr,
    BLOCK_K: tl.constexpr,
):
    pid_e = tl.program_id(0)
    pid_m = tl.program_id(1)

    offs_e = pid_e * BLOCK_E + tl.arange(0, BLOCK_E)
    offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)

    b = offs_m // patches_per_batch
    local_m = offs_m - b * patches_per_batch
    ot = local_m // (Ho * Wo)
    rem = local_m - ot * (Ho * Wo)
    oh = rem // Wo
    ow = rem - oh * Wo

    acc = tl.zeros((BLOCK_E, BLOCK_M), tl.float32)

    for k0 in range(0, K, BLOCK_K):
        offs_k = k0 + tl.arange(0, BLOCK_K)
        c = offs_k // (kT * kH * kW)
        kr = offs_k - c * (kT * kH * kW)
        kt = kr // (kH * kW)
        kr = kr - kt * (kH * kW)
        kh = kr // kW
        kw = kr - kh * kW

        x_t = ot[None, :] * kT + kt[:, None]
        x_h = oh[None, :] * kH + kh[:, None]
        x_w = ow[None, :] * kW + kw[:, None]
        x_offsets = ((((b[None, :] * C + c[:, None]) * T + x_t) * H + x_h) * W + x_w)
        w_offsets = offs_e[:, None] * K + offs_k[None, :]

        wv = tl.load(
            weight + w_offsets,
            mask=(offs_e[:, None] < embed_dim) & (offs_k[None, :] < K),
            other=0.0,
        )
        a = tl.load(
            x + x_offsets,
            mask=(offs_k[:, None] < K) & (offs_m[None, :] < total_patches),
            other=0.0,
        )
        acc += tl.dot(wv, a)

    y_offsets = (
        b[None, :] * (embed_dim * patches_per_batch)
        + offs_e[:, None] * patches_per_batch
        + local_m[None, :]
    )
    tl.store(
        y + y_offsets,
        acc,
        mask=(offs_e[:, None] < embed_dim) & (offs_m[None, :] < total_patches),
    )


class _WeightOnly(nn.Module):
    def __init__(self, C: int, kT: int, kH: int, kW: int, embed_dim: int):
        super().__init__()
        self.weight = nn.Parameter(
            torch.empty((embed_dim, C, kT, kH, kW), dtype=torch.bfloat16)
        )


class Model(nn.Module):
    def __init__(
        self,
        B: int,
        C: int,
        T: int,
        H: int,
        W: int,
        kT: int,
        kH: int,
        kW: int,
        embed_dim: int,
    ):
        super().__init__()
        assert T % kT == 0 and H % kH == 0 and W % kW == 0
        self.B, self.C, self.T, self.H, self.W = B, C, T, H, W
        self.kT, self.kH, self.kW = kT, kH, kW
        self.embed_dim = embed_dim
        self.To, self.Ho, self.Wo = T // kT, H // kH, W // kW
        self.K = C * kT * kH * kW
        self.total_patches = B * self.To * self.Ho * self.Wo
        self.patches_per_batch = self.To * self.Ho * self.Wo

        self.conv = _WeightOnly(C, kT, kH, kW, embed_dim)
        nn.init.normal_(self.conv.weight, std=0.02)

    def forward(self, x: torch.Tensor) -> torch.Tensor:
        y = torch.empty(
            (self.B, self.embed_dim, self.To, self.Ho, self.Wo),
            device=x.device,
            dtype=x.dtype,
        )

        if self.K == 768:
            use_patch_major = True
            block_m = 32
            block_n = 64
            block_k = 128
            warps = 4
        elif self.total_patches <= 256:
            use_patch_major = True
            block_m = 16
            block_n = 128
            block_k = 128
            warps = 4
        elif self.total_patches <= 1024:
            use_patch_major = False
            block_e = 128
            block_m = 64
            block_k = 64
            warps = 4
        else:
            use_patch_major = False
            block_e = 128
            block_m = 64
            block_k = 64
            warps = 4

        if use_patch_major:
            grid = (
                triton.cdiv(self.total_patches, block_m),
                triton.cdiv(self.embed_dim, block_n),
            )
            _patch_embed_kernel[grid](
                x,
                self.conv.weight,
                y,
                self.total_patches,
                self.patches_per_batch,
                self.C,
                self.T,
                self.H,
                self.W,
                self.kT,
                self.kH,
                self.kW,
                self.To,
                self.Ho,
                self.Wo,
                self.embed_dim,
                self.K,
                BLOCK_M=block_m,
                BLOCK_N=block_n,
                BLOCK_K=block_k,
                num_warps=warps,
                num_stages=3,
            )
        else:
            grid = (
                triton.cdiv(self.embed_dim, block_e),
                triton.cdiv(self.total_patches, block_m),
            )
            _patch_embed_kernel_em[grid](
                x,
                self.conv.weight,
                y,
                self.total_patches,
                self.patches_per_batch,
                self.C,
                self.T,
                self.H,
                self.W,
                self.kT,
                self.kH,
                self.kW,
                self.To,
                self.Ho,
                self.Wo,
                self.embed_dim,
                self.K,
                BLOCK_E=block_e,
                BLOCK_M=block_m,
                BLOCK_K=block_k,
                num_warps=warps,
                num_stages=3,
            )
        return y


B = 1
C = 3
T = 2
H = 224
W = 224
kT = 2
kH = 14
kW = 14
embed_dim = 1280


def get_inputs():
    x = torch.randn(B, C, T, H, W, dtype=torch.bfloat16) * 0.5
    return [x]


def get_init_inputs():
    return [B, C, T, H, W, kT, kH, kW, embed_dim]
Implemented [solution.py](/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py) with custom Triton BF16 tensor-core kernels. It keeps the strict `conv.weight` state_dict interface and avoids the banned PyTorch conv/GEMM helpers. Verification: - `uv run python check.py` -> `PASS` - `uv run ruff check . --fix` -> passed - `uv run pytest` -> no tests collected, pytest exits `5` - Latest `uv run python benchmark.py`: - shape 0: `22.615 TFLOPS`, `0.034 ms` - shape 1: `69.333 TFLOPS`, `0.044 ms` - shape 2: `126.097 TFLOPS`, `0.055 ms` - shape 3: `39.974 TFLOPS`, `0.023 ms` - `peak_fraction: 0.2651`, `RESULT: OK`
shape=0 variant=eager tflops=3.688 gbps=20.425 ms=0.209
shape=0 variant=compiled tflops=3.191 gbps=17.669 ms=0.242
shape=0 variant=sota tflops=3.737 gbps=20.694 ms=0.206
shape=0 variant=solution tflops=23.417 gbps=129.680 ms=0.033
shape=0 solution_peak_fraction=0.1171
shape=1 variant=eager tflops=13.939 gbps=36.354 ms=0.221
shape=1 variant=compiled tflops=12.038 gbps=31.396 ms=0.256
shape=1 variant=sota tflops=14.102 gbps=36.780 ms=0.219
shape=1 variant=solution tflops=68.495 gbps=178.645 ms=0.045
shape=1 solution_peak_fraction=0.3425
shape=2 variant=eager tflops=26.223 gbps=54.167 ms=0.265
shape=2 variant=compiled tflops=22.069 gbps=45.586 ms=0.314
shape=2 variant=sota tflops=26.444 gbps=54.623 ms=0.262
shape=2 variant=solution tflops=125.695 gbps=259.637 ms=0.055
shape=2 solution_peak_fraction=0.6285
shape=3 variant=eager tflops=6.189 gbps=24.013 ms=0.149
shape=3 variant=compiled tflops=4.799 gbps=18.620 ms=0.193
shape=3 variant=sota tflops=6.391 gbps=24.796 ms=0.145
shape=3 variant=solution tflops=30.200 gbps=117.166 ms=0.031
shape=3 solution_peak_fraction=0.1510
peak_fraction: 0.2484
RESULT: OK
PASS
{
    "problem": "10_patch_embed_conv3d_gemm",
    "harness": "codex",
    "model": "gpt-5.5",
    "reasoning_effort": "xhigh",
    "has_solution": true,
    "correct": true,
    "peak_fraction": 0.2484,
    "elapsed_seconds": 627,
    "harness_exit_code": 0,
    "session_complete": true,
    "usage": {"input_tokens": 4844056, "output_tokens": 33512, "cache_read_tokens": 4669824, "cache_creation_tokens": null, "reasoning_tokens": 13870, "total_cost_usd": null}
}

timeline (222 events)

system
session start model=None ctx=?
system
task_started turn=019e01fa
system
<permissions instructions> Filesystem sandboxing defines which files can be read or written. `sandbox_mode` is `danger-full-access`: No filesystem sandboxing - all commands are permitted. Network access is enabled. Approval policy is currently never. Do not provide the `sandbox_permissions` for any reason, commands will be rejected. </permissions instructions> <apps_instructions> ## Apps (Connectors) Apps (Connectors) can be explicitly triggered in user messages in the format `[$app-name](app://{connector_id})`. Apps can also be implicitly triggered as long as the context suggests usage of available apps. An app is equivalent to a set of MCP tools within the `codex_apps` MCP. An installed app's MCP tools are either provided to you already, or can be lazy-loaded through the `tool_search` tool. If `tool_search` is available, the apps that are searchable by `tools_search` will be listed by it. Do not additionally call list_mcp_resources or list_mcp_resource_templates for apps. </apps_instructions> <skills_instructions> ## Skills A skill is a set of local instructions to follow that is stored in a `SKILL.md` file. Below is the list of skills that can be used. Each entry includes a name, description, and file path so you can open the source for full instructions when using a specific skill. ### Available skills - imagegen: Generate or edit raster images when the task benefits from AI-created bitmap visuals such as photos, illustrations, textures, sprites, mockups, or transparent-background cutouts. Use when Codex should create a brand-new image, transform an existing image, or derive visual variants from references, and the output should be a bitmap asset rather than repo-native code or vector. Do not use when the task is better handled by editing existing SVG/vector/code-native assets, extending an established icon or logo system, or building the visual directly in HTML/CSS/canvas. (file: /home/infatoshi/.codex/skills/.system/imagegen/SKILL.md) - openai-docs: Use when the user asks how to build with OpenAI products or APIs and needs up-to-date official documentation with citations, help choosing the latest model for a use case, or model upgrade and prompt-upgrade guidance; prioritize OpenAI docs MCP tools, use bundled references only as helper context, and restrict any fallback browsing to official OpenAI domains. (file: /home/infatoshi/.codex/skills/.system/openai-docs/SKILL.md) - plugin-creator: Create and scaffold plugin directories for Codex with a required `.codex-plugin/plugin.json`, optional plugin folders/files, and baseline placeholders you can edit before publishing or testing. Use when Codex needs to create a new local plugin, add optional plugin structure, or generate or update repo-root `.agents/plugins/marketplace.json` entries for plugin ordering and availability metadata. (file: /home/infatoshi/.codex/skills/.system/plugin-creator/SKILL.md) - skill-creator: Guide for creating effective skills. This skill should be used when users want to create a new skill (or update an existing skill) that extends Codex's capabilities with specialized knowledge, workflows, or tool integrations. (file: /home/infatoshi/.codex/skills/.system/skill-creator/SKILL.md) - skill-installer: Install Codex skills into $CODEX_HOME/skills from a curated list or a GitHub repo path. Use when a user asks to list installable skills, install a curated skill, or install a skill from another repo (including private repos). (file: /home/infatoshi/.codex/skills/.system/skill-installer/SKILL.md) - brainstorm: Run interactive brainstorming across verifiers environments, evaluations, GEPA, and RL training. Use when the user wants ideation, literature scanning, concept teaching, roadmap planning, or research program design grounded in local CLI sources, verifiers, and RL trainer code. (file: /home/infatoshi/.prime/skills/brainstorm/SKILL.md) - browse-environments: Discover and inspect verifiers environments through the Prime ecosystem. Use when asked to find environments on the Hub, compare options, inspect metadata, check action status, pull local copies for inspection, or choose environment starting points before evaluation, training, or migration work. (file: /home/infatoshi/.prime/skills/browse-environments/SKILL.md) - create-environments: Create or migrate verifiers environments for the Prime Lab ecosystem. Use when asked to build a new environment from scratch, port an eval or benchmark from papers or other libraries, start from an environment on the Hub, or convert existing tasks into a package that exposes load_environment and installs cleanly with prime env install. (file: /home/infatoshi/.prime/skills/create-environments/SKILL.md) - evaluate-environments: Run and analyze evaluations for verifiers environments using prime eval. Use when asked to smoke-test environments, run benchmark sweeps, resume interrupted evaluations, compare models, inspect sample-level outputs, or produce evaluation summaries suitable for deciding next steps. (file: /home/infatoshi/.prime/skills/evaluate-environments/SKILL.md) - optimize-environments: Audit and optimize verifiers environments for async performance. Use when asked to profile, speed up, or review an environment for concurrency bottlenecks, event loop blocking, or scaling issues under high rollout counts. (file: /home/infatoshi/.prime/skills/optimize-environments/SKILL.md) - optimize-with-environments: Optimize environment system prompts with GEPA through prime gepa run. Use when asked to improve prompt performance without gradient training, compare baseline versus optimized prompts, run GEPA from CLI or TOML configs, or interpret GEPA outputs before deployment. (file: /home/infatoshi/.prime/skills/optimize-with-environments/SKILL.md) - review-environments: Review verifiers environments for correctness, robustness, and ecosystem compatibility. Use when asked for environment code review, quality audit, migration validation, or release readiness checks for local environments or environments pulled from the Hub. (file: /home/infatoshi/.prime/skills/review-environments/SKILL.md) - train-with-environments: Train models with verifiers environments using hosted RL or prime-rl. Use when asked to configure RL runs, tune key hyperparameters, diagnose instability, set up difficulty filtering and oversampling, or create practical train and eval loops for new environments. (file: /home/infatoshi/.prime/skills/train-with-environments/SKILL.md) ### How to use skills - Discovery: The list above is the skills available in this session (name + description + file path). Skill bodies live on disk at the listed paths. - Trigger rules: If the user names a skill (with `$SkillName` or plain text) OR the task clearly matches a skill's description shown above, you must use that skill for that turn. Multiple mentions mean use them all. Do not carry skills across turns unless re-mentioned. - Missing/blocked: If a named skill isn't in the list or the path can't be read, say so briefly and continue with the best fallback. - How to use a skill (progressive disclosure): 1) After deciding to use a skill, open its `SKILL.md`. Read only enough to follow the workflow. 2) When `SKILL.md` references relative paths (e.g., `scripts/foo.py`), resolve them relative to the skill directory listed above first, and only consider other paths if needed. 3) If `SKILL.md` points to extra folders such as `references/`, load only the specific files needed for the request; don't bulk-load everything. 4) If `scripts/` exist, prefer running or patching them instead of retyping large code blocks. 5) If `assets/` or templates exist, reuse them instead of recreating from scratch. - Coordination and sequencing: - If multiple skills apply, choose the minimal set that covers the request and state the order you'll use them. - Announce which skill(s) you're using and why (one short line). If you skip an obvious skill, say why. - Context hygiene: - Keep context small: summarize long sections instead of pasting them; only load extra files when needed. - Avoid deep reference-chasing: prefer opening only files directly linked from `SKILL.md` unless you're blocked. - When variants exist (frameworks, providers, domains), pick only the relevant reference file(s) and note that choice. - Safety and fallback: If a skill can't be applied cleanly (missing files, unclear instructions), state the issue, pick the next-best approach, and continue. </skills_instructions>
user
# AGENTS.md instructions for /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm <INSTRUCTIONS> <proactive-behavior> Act without asking permission. Never ask "Should I...?" or "Want me to...?" Just do it. Report results. Only involve human when: 1. Uncertain about requirements or major architectural decisions 2. Human eyes needed (visual verification, UI testing) 3. Blocked by something only human can resolve </proactive-behavior> <python> UV is the ONLY way to run Python inside projects. - `uv run script.py` instead of `python script.py` - `uv run python --version` instead of `python --version` - `uv pip install` / `uv add` instead of `pip install` - `uv venv` instead of `python -m venv` Never use `--system`. Never use bare `python` or `pip` commands. Use pipx only for system-level CLI tools. </python> <delegation> External agent delegation (when user says "delegate a cursor/codex/gemini"): Run headless via Bash and return the result. Use run_in_background for parallel work. - cursor: `cursor agent --model composer-2 --yolo --print "PROMPT"` - codex: `codex exec --full-auto "PROMPT"` - gemini: `gemini -y -m gemini-3.1-pro -o text "PROMPT"` </delegation> <principles> No emojis. No em dashes. Never guess numbers - benchmark or say "needs measurement". Do not over-engineer. Minimal changes only. Do not add features beyond what was requested. Do not refactor unrelated code. Do not revert, overwrite, or reformat unrelated user changes. Non-trivial projects need SPEC.md as north star. </principles> <testing> Tests are mandatory for non-trivial implementation work. - Run tests: `uv run pytest` - Lint: `uv run ruff check . --fix` - Both must pass before declaring work complete. Comparison rules: - Integers/exact: bitwise comparison (`==`) - Floats: `atol`/`rtol` tolerance (IEEE 754) </testing> <verification> Before completing any task: 1. Re-read the original request and make sure the work fully addresses it. 2. If code changed, execute the touched path when practical. 3. If tests exist, run them. If you made non-trivial changes and no tests exist, write them. 4. Review recent command output for unaddressed errors, warnings, or failures. 5. If you edited a file 10+ times without resolving the issue, stop and try a fundamentally different approach. 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Gumroad sales, subscriptions, personal contacts, Google Drive storage. elliot@arledge.net -- professional. Manning book (CUDA for DL), contracts, invoices, GitHub, work correspondence. Drive: gog ls -a EMAIL [--parent FOLDER_ID] [--max N] gog drive search -a EMAIL "query" [--raw-query "Drive query language"] gog drive mkdir "name" -a EMAIL [--parent FOLDER_ID] gog drive move FILE_ID -a EMAIL --parent FOLDER_ID gog drive delete FILE_ID -a EMAIL -y gog download FILE_ID -a EMAIL [-o output_path] gog upload LOCAL_PATH -a EMAIL [--parent FOLDER_ID] gog drive rename FILE_ID "new name" -a EMAIL Gmail: gog gmail search -a EMAIL "gmail query syntax" [--max N] gog gmail messages read MSG_ID -a EMAIL gog send -a EMAIL --to ADDR --subject "subj" --body "text" Calendar: gog calendar events -a EMAIL [--max N] gog calendar create CALENDAR_ID -a EMAIL --summary "title" --start "2026-01-01T09:00:00" --end "2026-01-01T10:00:00" gog calendar search -a EMAIL "query" Contacts: gog contacts search -a EMAIL "name" Add -j for JSON output. Add -p for TSV/plain. Add --max N to limit results. Gmail query examples: "from:foo newer_than:7d", "subject:invoice is:unread", "has:attachment filename:pdf" For formatted emails use --body-html with HTML, not markdown in --body. Use --help on any subcommand for full flags. </gogcli> <x-cli> X/Twitter CLI at ~/.local/bin/x-cli. Credentials in ~/x-cli/.env. x-cli user timeline USERNAME --max N # fetch recent posts x-cli user get USERNAME # profile lookup x-cli tweet search "query" --max N # search tweets x-cli tweet post "text" # post a tweet x-cli tweet reply TWEET_ID "text" # reply to a tweet x-cli tweet get TWEET_ID # fetch single tweet x-cli me mentions --max N # your mentions x-cli me bookmarks --max N # your bookmarks x-cli like TWEET_ID # like a tweet x-cli retweet TWEET_ID # retweet Add -j for JSON, -md for markdown, -p for TSV. Use --help on any subcommand. </x-cli> <project-context-files> INCLUDE: version pins, build/run/test commands, behavioral overrides, undiscoverable context, current status, domain gotchas, hard constraints. EXCLUDE: directory trees, architecture narration, feature specs (use SPEC.md), enum/type definitions from code, workflow docs, anything findable in <60s. If something keeps breaking, add the fix to project CLAUDE.md/AGENTS.md. Fewer constraints with higher signal beats comprehensive documentation. </project-context-files> --- project-doc --- # KernelBench-Hard — Developer Instructions (codex / droid) This is the codex / droid / cursor-agent equivalent of `CLAUDE.md`. Content is identical; format is plain markdown for any CLI. See [`CLAUDE.md`](./CLAUDE.md) for the canonical version. All rules there apply. Summary of the non-negotiables: - **uv only.** `uv run ...`, `uv add ...`, `uv pip install ...`. Never `pip` or bare `python`. - **Before committing:** `uv run ruff check . --fix && uv run pytest`. - **Do not edit `problems/*/solution.py`** — those are agent output. - **Do not modify `reference.py`, `check.py`, `benchmark.py`, `problem.yaml`, `shapes.py`, or `PROMPT.txt`** of an already-published problem. - **Apply the torch 2.11 inductor CSE hotfix** via `./scripts/patch_torch.sh` after any `uv sync`. ## Quick actions ```bash uv sync ./scripts/patch_torch.sh ./scripts/run_hard.sh claude claude-opus-4-7 problems/01_fp8_gemm ``` ## Repo layout and adding a new problem See `CLAUDE.md` — everything there is authoritative. </INSTRUCTIONS> <environment_context> <cwd>/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm</cwd> <shell>zsh</shell> <current_date>2026-05-07</current_date> <timezone>America/Edmonton</timezone> </environment_context>
user
I need you to optimize a 3D patch-embedding kernel for the RTX PRO 6000 (SM120 Blackwell, GDDR7, 1.8 TB/s). The reference implementation is in reference.py and your kernel goes in solution.py. You can make whatever mess you want in this directory — scratch files, intermediate kernels, build artifacts, profiling traces — but the final answer has to be in solution.py with the same Model, get_inputs, and get_init_inputs interface as reference.py. The op is the patch-embedding step that opens every modern Vision-Transformer / video-language model: a bf16 video tensor x of shape (B, C, T, H, W) is split into non-overlapping (kT, kH, kW) patches and each patch is projected to embed_dim. Mathematically this is a 3D convolution with stride equal to the kernel, equivalently a single (num_patches, C*kT*kH*kW) by (C*kT*kH*kW, embed_dim) GEMM after a strided gather. Output is (B, embed_dim, T/kT, H/kH, W/kW) bf16. The Model has a Conv3d weight registered as a parameter — your solution must declare it identically so state_dict loading works. Correctness tolerance on the bf16 output is 1e-2 abs/rel. The shapes you have to handle are B=1 C=3 T=2 H=224 W=224 kT=2 kH=14 kW=14 embed_dim=1280 (Qwen2-VL ViT base, the canonical case), B=2 C=3 T=4 H=224 W=224 kT=2 kH=14 kW=14 embed_dim=1280 (batch 2, 4-frame video), B=1 C=3 T=8 H=336 W=336 kT=2 kH=14 kW=14 embed_dim=1280 (larger spatial, 8 frames), and B=4 C=3 T=1 H=224 W=224 kT=1 kH=16 kW=16 embed_dim=768 (image-mode ViT-B/16). All inputs are aligned to the patch size — no fractional-patch tails to predicate. This needs to be a real custom kernel. Don't reach for torch.nn.Conv3d, torch.nn.functional.conv3d, F.conv3d, or torch.conv3d — they're off-limits and using them fails correctness. Don't take the lazy reshape-then-cuBLAS shortcut either: torch.matmul, torch.bmm, torch.nn.functional.linear, F.linear, torch.einsum, torch.nn.functional.unfold, and F.unfold are all banned. Try CUDA C++ via torch.utils.cpp_extension.load_inline, CUTLASS / CuTe (which has good support for strided patch loads), Triton with tl.dot, inline PTX with mma.sync, or whatever fits. The work is compute-bound at embed_dim=1280, so wins come from getting tensor cores busy with bf16 MMAs while fusing the strided patch gather into the K-loop. Anything you're uncertain about — im2col layout for 3D, MMA tile shapes for SM120, CUTLASS Conv-as-GEMM examples — look up PTX docs, browse CUTLASS, read library source, and investigate. Your flywheel is implement, profile (ncu, nsys, torch.profiler — whatever's useful) and time it with benchmark.py, verify correctness by running `python check.py` and reading the output, then iterate. Don't substitute your own one-off correctness snippets for check.py — it iterates over every shape across multiple seeds, your spot-check almost certainly won't. If `python check.py` hasn't printed PASS, you're not done. Take as long as you need to actually push the number up.
assistant
I’ll inspect the problem harness and current workspace first, then run the required GPU availability check before any benchmark or correctness work. After that I’ll implement in `solution.py` and iterate against the repo’s own `check.py` / `benchmark.py`.
assistant
exec_command
args
{
  "cmd": "nvidia-smi",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 4000
}
assistant
exec_command
args
{
  "cmd": "git status --short --branch",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 4000
}
assistant
exec_command
args
{
  "cmd": "uv run python --version",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 4000
}
assistant
exec_command
args
{
  "cmd": "rg --files -g 'AGENTS.md' -g 'CLAUDE.md' -g 'SPEC.md' -g 'pyproject.toml' -g 'Makefile' -g 'README*' -g 'check.py' -g 'benchmark.py' -g 'reference.py' -g 'solution.py'",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 4000
}
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Thu May  7 04:28:13 2026       
+-----------------------------------------------------------------------------------------+
| NVIDIA-SMI 595.58.03              Driver Version: 595.58.03      CUDA Version: 13.2     |
+-----------------------------------------+------------------------+----------------------+
| GPU  Name                 Persistence-M | Bus-Id          Disp.A | Volatile Uncorr. ECC |
| Fan  Temp   Perf          Pwr:Usage/Cap |           Memory-Usage | GPU-Util  Compute M. |
|                                         |                        |               MIG M. |
|=========================================+========================+======================|
|   0  NVIDIA RTX PRO 6000 Blac...    On  |   00000000:01:00.0 Off |                  Off |
| 30%   35C    P0             87W /  600W |     271MiB /  97887MiB |      0%      Default |
|                                         |                        |                  N/A |
+-----------------------------------------+------------------------+----------------------+

+-----------------------------------------------------------------------------------------+
| Processes:                                                                              |
|  GPU   GI   CI              PID   Type   Process name                        GPU Memory |
|        ID   ID                                                           

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## master...origin/master
?? ../09_fmha_preattn_mrope/
?? ./
?? ../../scripts/sweep_09_10.sh
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Python 3.11.15
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reference.py
check.py
benchmark.py
assistant
GPU is idle enough for measurements: `nvidia-smi` shows only desktop processes and 271 MiB used. The problem directory is untracked in git, so I’ll keep edits scoped inside it and avoid touching repo-wide files unless a build tool requires it.
assistant
exec_command
args
{
  "cmd": "sed -n '1,240p' reference.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
assistant
exec_command
args
{
  "cmd": "sed -n '1,260p' check.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 8000
}
assistant
exec_command
args
{
  "cmd": "sed -n '1,260p' benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 8000
}
assistant
exec_command
args
{
  "cmd": "find ../.. -name AGENTS.md -o -name CLAUDE.md -o -name SPEC.md -maxdepth 3",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 4000
}
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"""Naive Conv3d-as-GEMM patch embedding reference (correctness only).

Vision-Transformer / Qwen2-VL style patch embedding: a video tensor
(B, C, T, H, W) is split into non-overlapping (kT, kH, kW) patches and each
patch projected to embed_dim. This is mathematically a 3D convolution with
stride == kernel and equivalently a single GEMM after a strided reshape.

Reference uses nn.Conv3d (cuDNN dispatch) for clarity. The agent's solution is
forbidden from using Conv3d / conv3d / matmul / linear / einsum, forcing them
to write a fused patch-gather + tensor-core GEMM kernel.

Output layout: (B, embed_dim, T/kT, H/kH, W/kW). No bias.
"""
import torch
import torch.nn as nn

OP_TYPE = "patch_embed"
SUPPORTED_PRECISIONS = ["bf16"]
HARDWARE_REQUIRED = ["RTX_PRO_6000"]


class Model(nn.Module):
    def __init__(self, B: int, C: int, T: int, H: int, W: int,
                 kT: int, kH: int, kW: int, embed_dim: int):
        super().__init__()
        assert T % kT == 0 and H % kH == 0 and W % kW == 0, \
            f"Input dims must be divisible by patch size: T={T} kT={kT} H={H} kH={kH} W={W} kW={kW}"
        self.B, self.C, self.T, self.H, self.W = B, C, T, H, W
        self.kT, self.kH, self.kW = kT, kH, kW
        self.embed_dim = embed_dim

        self.conv = nn.Conv3d(
            C, embed_dim,
            kernel_size=(kT, kH, kW),
            stride=(kT, kH, kW),
            

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"""Correctness runner for Conv3d-as-GEMM patch embedding.

Runs solution.Model vs reference.Model across all shapes in shapes.py, 3 seeds
each, with per-dtype atol/rtol. Also rejects forbidden ops by grep.
"""
import re
import sys
from pathlib import Path

import torch
import yaml

# Make the repo's src/ importable
REPO_ROOT = Path(__file__).resolve().parents[2]
sys.path.insert(0, str(REPO_ROOT))

from src.eval.correctness import check_correctness  # noqa: E402


def main():
    try:
        import reference
        import shapes
        import solution
    except Exception as e:
        print(f"FAIL: import error: {e}")
        sys.exit(1)

    problem_yaml = Path("problem.yaml")
    meta = yaml.safe_load(problem_yaml.read_text()) if problem_yaml.exists() else {}

    # --- Forbidden-op check ------------------------------------------------
    sol_src = Path("solution.py").read_text() if Path("solution.py").exists() else ""
    for forbidden in meta.get("forbidden", []):
        pat = re.escape(forbidden)
        if re.search(pat, sol_src):
            print(f"FAIL: forbidden op used: {forbidden}")
            sys.exit(1)

    device = torch.device("cuda:0")
    tol_override = meta.get("tolerance") or None

    # --- Per-shape correctness --------------------------------------------
    all_shapes = shapes.SHAPES
    for shape_idx, shape in enumerate(all_shapes):
        

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"""Roofline benchmark for Conv3d-as-GEMM patch embedding.

For each shape: times eager reference, compiled reference, SOTA (if available),
and the agent's solution. Reports achieved TFLOPS, GB/s, and peak_fraction.

Output lines the harness picks up:
  shape=<idx> variant=<name> tflops=<N> gbps=<N> ms=<N>
  peak_fraction: <N>  (geomean over shapes of solution's peak_fraction)
"""
import sys
from math import exp, log
from pathlib import Path

import torch
import yaml

REPO_ROOT = Path(__file__).resolve().parents[2]
sys.path.insert(0, str(REPO_ROOT))

from src.eval.roofline import compute_gbps, compute_tflops, peak_fraction  # noqa: E402
from src.eval.timing import time_fn  # noqa: E402
from src.hardware import get as get_hw  # noqa: E402


def _eval_formula(expr: str, vars: dict) -> float:
    # Very small eval: only names from `vars` are valid.
    return float(eval(expr, {"__builtins__": {}}, vars))


def main():
    import reference
    import shapes
    import solution

    meta = yaml.safe_load(Path("problem.yaml").read_text())
    hw = get_hw(meta["hardware"][0])
    peak_tflops = hw.peak_tflops_dense.get(meta["peak_tflops_key"], 0.0)
    peak_gbps = hw.peak_bandwidth_gb_s
    regime = meta.get("regime", "compute")
    flops_formula = meta["flops_formula"]
    bytes_formula = meta["bytes_formula"]
    num_perf_trials = int(meta.get("num_perf_trials", 30))

    device 

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Output:
../../AGENTS.md
../../SPEC.md
../../CLAUDE.md
assistant
exec_command
args
{
  "cmd": "sed -n '1,220p' shapes.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
assistant
exec_command
args
{
  "cmd": "sed -n '1,220p' problem.yaml",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
assistant
exec_command
args
{
  "cmd": "sed -n '1,260p' ../../SPEC.md",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 8000
}
assistant
exec_command
args
{
  "cmd": "ls -la",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 4000
}
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Output:
"""Canonical shape sweep for Conv3d-as-GEMM patch embedding.

Sized for Qwen2-VL / ViT-style patch embedding. embed_dim=1280 matches Qwen2-VL
ViT; embed_dim=768 is a ViT-B/16 reference. Patch sizes are the canonical
14x14 spatial / 2-frame temporal used in modern VL encoders.
"""

SHAPES = [
    # Qwen2-VL ViT base: 224x224x2-frame video, 14x14x2 patches, embed_dim=1280
    {"B": 1, "C": 3, "T": 2,  "H": 224, "W": 224, "kT": 2, "kH": 14, "kW": 14, "embed_dim": 1280},

    # Same patch config, batch 2, 4-frame video
    {"B": 2, "C": 3, "T": 4,  "H": 224, "W": 224, "kT": 2, "kH": 14, "kW": 14, "embed_dim": 1280},

    # Larger spatial (336x336), 8-frame — exercises larger num_patches
    {"B": 1, "C": 3, "T": 8,  "H": 336, "W": 336, "kT": 2, "kH": 14, "kW": 14, "embed_dim": 1280},

    # ViT-B/16 (image-mode): kT=1, kH=kW=16, embed_dim=768
    {"B": 4, "C": 3, "T": 1,  "H": 224, "W": 224, "kT": 1, "kH": 16, "kW": 16, "embed_dim": 768},
]
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Output:
name: 10_patch_embed_conv3d_gemm
display_name: "Conv3d-as-GEMM Patch Embedding"
precision: bf16
regime: compute  # GEMM-equivalent, embed_dim=1280 is well above the bf16 ridge

# Dense FLOPs: 2 * (num_patches) * (C * kT * kH * kW) * embed_dim.
# With stride==kernel and divisible inputs, num_patches * (kT*kH*kW) = T*H*W,
# so this collapses to: 2 * B * embed_dim * C * T * H * W.
flops_formula: "2 * B * embed_dim * C * T * H * W"

# Bytes moved (lower bound):
#   read input x:    B * C * T * H * W * 2
#   read weights:    embed_dim * C * kT * kH * kW * 2
#   write output:    B * embed_dim * (T // kT) * (H // kH) * (W // kW) * 2
bytes_formula: "B*C*T*H*W*2 + embed_dim*C*kT*kH*kW*2 + B*embed_dim*(T//kT)*(H//kH)*(W//kW)*2"

hardware: [RTX_PRO_6000]
peak_tflops_key: bf16
peak_bandwidth_key: dram

tolerance:
  bfloat16: 0.02

# Forbidden ops -- agent must implement the fused patch-gather + GEMM
# themselves. Banning Conv3d/conv3d (the cuDNN dispatch) and matmul/bmm/linear/
# einsum (the lazy reshape-then-cuBLAS shortcut). Unfold is also banned for
# completeness even though it's nominally 2D.
forbidden:
  - "torch.nn.Conv3d"
  - "torch.nn.functional.conv3d"
  - "F.conv3d"
  - "torch.conv3d"
  - "torch.matmul"
  - "torch.bmm"
  - "torch.nn.functional.linear"
  - "F.linear"
  - "torch.einsum"
  - "torch.nn.functional.unfold"
  - "F.unfold"

sota:
  name: "cuDNN Conv3d (torch.nn.func

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# KernelBench-Hard: Design Specification

Last updated: 2026-04-27.

## Purpose

A small, hand-curated GPU kernel benchmark where frontier coding agents attempt to beat the state-of-the-art kernel on a specific operation on specific hardware. Unlike KernelBench-v3, the goal is not breadth or quantity — it's to produce a few genuinely-hard traces that reveal how each (model, harness) pair approaches kernel engineering.

## Why "Hard"

v3 was 43 problems of grab-bag difficulty. Most were winnable by any frontier model with any harness. Median speedups ended up reward-hacked or trivially-above-eager, which made the leaderboard non-informative. Hard has ~8 problems where:

1. A reward-hacked solution fails correctness (tight atol, multi-shape eval, SOTA comparison).
2. Eager PyTorch is not the baseline — SOTA references are (sonic-moe, flashinfer, marlin, Tri Dao's attention kits). Beating PyTorch means nothing; approaching SOTA is the goal.
3. The problem requires reading source code / papers that the agent must navigate to. No spoon-feeding.

## Non-goals

- No public leaderboard. We publish roofline plots and kernels, not a number that models compete on.
- No "portable kernel" judging. SM120-specific optimizations are expected and good.
- No multi-turn/multi-day agent loops. 45 minutes wall-clock, one shot.

## Metric

### Primary: fraction of hardware peak

**Compute-bound

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total 40
drwxrwxr-x  2 infatoshi infatoshi 4096 May  7 04:28 .
drwxrwxr-x 12 infatoshi infatoshi 4096 May  4 13:57 ..
-rw-rw-r--  1 infatoshi infatoshi 2969 May  4 14:03 PROMPT.txt
-rw-rw-r--  1 infatoshi infatoshi 4626 May  4 14:02 benchmark.py
-rw-rw-r--  1 infatoshi infatoshi 3988 May  4 14:02 check.py
-rw-rw-r--  1 infatoshi infatoshi 1541 May  4 14:01 problem.yaml
-rw-rw-r--  1 infatoshi infatoshi 1994 May  4 14:01 reference.py
-rw-rw-r--  1 infatoshi infatoshi  953 May  4 14:01 shapes.py
-rw-rw-r--  1 infatoshi infatoshi  534 May  4 14:02 sota.py
assistant
The harness only sets module-level shapes on `reference`, then uses `reference.get_init_inputs()` for both models. So `solution.Model` just needs constructor-compatible arguments and a strict `conv.weight` parameter key; `solution.get_inputs()` is still included for interface symmetry.
assistant
exec_command
args
{
  "cmd": "sed -n '1,180p' sota.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 4000
}
assistant
exec_command
args
{
  "cmd": "uv run python -c \"import torch, triton; print(torch.__version__); print(triton.__version__)\"",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 4000
}
assistant
exec_command
args
{
  "cmd": "sed -n '1,220p' ../../src/eval/timing.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
assistant
exec_command
args
{
  "cmd": "sed -n '1,180p' ../../src/hardware/rtx_pro_6000.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 4000
}
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Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 134
Output:
"""SOTA reference for Conv3d-as-GEMM patch embedding.

Dispatches torch.nn.functional.conv3d (cuDNN). The agent's solution is
forbidden from calling conv3d directly; this file is only for the benchmark's
reference baseline.
"""
from __future__ import annotations

import torch
import torch.nn.functional as F


def sota_forward(x: torch.Tensor, weight: torch.Tensor,
                 stride: tuple[int, int, int]) -> torch.Tensor:
    return F.conv3d(x, weight, bias=None, stride=stride)


def is_available() -> bool:
    return True
tool
stdout (121 chars)
Chunk ID: 3b76fc
Wall time: 0.5383 seconds
Process exited with code 0
Original token count: 5
Output:
2.11.0+cu130
3.6.0
tool
stdout (2671 chars) — TRUNCATED
Chunk ID: a5de7a
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 643
Output:
"""Centralized GPU timing for benchmark.py files.

All problems' benchmark.py should call `time_fn` from here so we have one
implementation of warmup, L2 flush, and CUDA event capture to maintain.

Methodology:
  - 10 warmup calls absorb Triton autotune (typical ~7 configs) and
    torch.compile reduce-overhead CUDA-graph capture.
  - Between each timed call, `_l2_flush()` writes 128 MB to evict L2
    (Blackwell L2 is 96 MB; we want any prior L2 contents flushed so
    we measure HBM-load bandwidth, not L2-cached bandwidth).
  - GPU timing via cuda.Event with synchronize() AFTER record() but
    BEFORE elapsed_time() — the canonical NVIDIA pattern.
  - Reported value is the median of `iters` trials, robust to outliers.

Notes / known biases not addressed here:
  - torch.compile(mode="reduce-overhead") gets CUDA graphs which eliminate
    launch overhead. Custom Triton/CUDA kernels do NOT get this treatment.
    On small shapes where launch overhead matters, this gives compile an
    artificial advantage. We accept this as the cost of using the agreed
    "compiled" baseline policy.
  - cuBLAS / cuDNN allocate workspaces on first call. 10 warmup absorbs.
  - Median over a fairly small number of trials (default 30) is fine for
    headline numbers but won't catch bimodal distributions. Use --extra
    instrumentation if you ever care.
"""
from __future__ import annotations



... (1171 more chars)
tool
stdout (989 chars)
Chunk ID: c1d2b0
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 222
Output:
"""RTX PRO 6000 Blackwell Workstation — SM120, consumer-lineage Blackwell.

Peak tensor-core throughputs are dense-matrix advertised peaks. Actual kernels
will see 60-85% of peak on well-tuned code.
"""
from dataclasses import dataclass


@dataclass(frozen=True)
class HardwareTarget:
    name: str
    sm: str
    vram_gb: int
    peak_bandwidth_gb_s: float  # DRAM
    peak_tflops_dense: dict[str, float]  # dtype -> TFLOPS


RTX_PRO_6000 = HardwareTarget(
    name="RTX PRO 6000 Blackwell Workstation",
    sm="sm_120a",
    vram_gb=96,
    peak_bandwidth_gb_s=1800.0,
    peak_tflops_dense={
        "fp4": 800.0,
        "nvfp4": 800.0,
        "mxfp4": 800.0,
        "fp6": 800.0,
        "fp8": 400.0,
        "bf16": 200.0,
        "fp16": 200.0,
        "tf32": 100.0,
        "fp32": 12.0,  # non-tensor-core SIMT fp32
        "int8": 400.0,
        "int4": 800.0,
    },
)
assistant
I’m going to start with a fused Triton BF16 GEMM: each program tile gathers one patch tile from `x` on the fly, multiplies against `conv.weight`, accumulates in FP32 tensor-core dot, and stores directly into the Conv-style output layout. This keeps the required `conv.weight` state key without using the disallowed framework calls.
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
diff (184 lines)
--- /dev/null
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@ -0,0 +1,181 @@
+import torch
+import torch.nn as nn
+import triton
+import triton.language as tl
+
+
+@triton.jit
+def _patch_embed_kernel(
+    x,
+    weight,
+    y,
+    total_patches: tl.constexpr,
+    patches_per_batch: tl.constexpr,
+    C: tl.constexpr,
+    T: tl.constexpr,
+    H: tl.constexpr,
+    W: tl.constexpr,
+    kT: tl.constexpr,
+    kH: tl.constexpr,
+    kW: tl.constexpr,
+    To: tl.constexpr,
+    Ho: tl.constexpr,
+    Wo: tl.constexpr,
+    embed_dim: tl.constexpr,
+    K: tl.constexpr,
+    BLOCK_M: tl.constexpr,
+    BLOCK_N: tl.constexpr,
+    BLOCK_K: tl.constexpr,
+):
+    pid_m = tl.program_id(0)
+    pid_n = tl.program_id(1)
+
+    offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)
+    offs_n = pid_n * BLOCK_N + tl.arange(0, BLOCK_N)
+
+    b = offs_m // patches_per_batch
+    local_m = offs_m - b * patches_per_batch
+    ot = local_m // (Ho * Wo)
+    rem = local_m - ot * (Ho * Wo)
+    oh = rem // Wo
+    ow = rem - oh * Wo
+
+    acc = tl.zeros((BLOCK_M, BLOCK_N), tl.float32)
+
+    for k0 in range(0, K, BLOCK_K):
+        offs_k = k0 + tl.arange(0, BLOCK_K)
+        c = offs_k // (kT * kH * kW)
+        kr = offs_k - c * (kT * kH * kW)
+        kt = kr // (kH * kW)
+        kr = kr - kt * (kH * kW)
+        kh = kr // kW
+        kw = kr - kh * kW
+
+        x_t = ot[:, None] * kT + kt[None, :]
+        x_h = oh[:, None] * kH + kh[None, :]
+        x_w = ow[:, None] * kW + kw[None, :]
+        x_offsets = ((((b[:, None] * C + c[None, :]) * T + x_t) * H + x_h) * W + x_w)
+        w_offsets = offs_n[None, :] * K + offs_k[:, None]
+
+        a = tl.load(
+            x + x_offsets,
+            mask=(offs_m[:, None] < total_patches) & (offs_k[None, :] < K),
+            other=0.0,
+        )
+        wv = tl.load(
+            weight + w_offsets,
+            mask=(offs_k[:, None] < K) & (offs_n[None, :] < embed_dim),
+            other=0.0,
+        )
+        acc += tl.dot(a, wv)
+
+    y_offsets = (
+        b[:, None] * (embed_dim * patches_per_batch)
+        + offs_n[None, :] * patches_per_batch
+        + local_m[:, None]
+    )
+    tl.store(
+        y + y_offsets,
+        acc,
+        mask=(offs_m[:, None] < total_patches) & (offs_n[None, :] < embed_dim),
+    )
+
+
+class _WeightOnly(nn.Module):
+    def __init__(self, C: int, kT: int, kH: int, kW: int, embed_dim: int):
+        super().__init__()
+        self.weight = nn.Parameter(
+            torch.empty((embed_dim, C, kT, kH, kW), dtype=torch.bfloat16)
+        )
+
+
+class Model(nn.Module):
+    def __init__(
+        self,
+        B: int,
+        C: int,
+        T: int,
+        H: int,
+        W: int,
+        kT: int,
+        kH: int,
+        kW: int,
+        embed_dim: int,
+    ):
+        super().__init__()
+        assert T % kT == 0 and H % kH == 0 and W % kW == 0
+        self.B, self.C, self.T, self.H, self.W = B, C, T, H, W
+        self.kT, self.kH, self.kW = kT, kH, kW
+        self.embed_dim = embed_dim
+        self.To, self.Ho, self.Wo = T // kT, H // kH, W // kW
+        self.K = C * kT * kH * kW
+        self.total_patches = B * self.To * self.Ho * self.Wo
+        self.patches_per_batch = self.To * self.Ho * self.Wo
+
+        self.conv = _WeightOnly(C, kT, kH, kW, embed_dim)
+        nn.init.normal_(self.conv.weight, std=0.02)
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        y = torch.empty(
+            (self.B, self.embed_dim, self.To, self.Ho, self.Wo),
+            device=x.device,
+            dtype=x.dtype,
+        )
+
+        if self.K == 768:
+            block_m = 16
+            block_n = 64
+            block_k = 64
+            warps = 4
+        else:
+            block_m = 16
+            block_n = 64
+            block_k = 64
+            warps = 4
+
+        grid = (triton.cdiv(self.total_patches, block_m), triton.cdiv(self.embed_dim, block_n))
+        _patch_embed_kernel[grid](
+            x,
+            self.conv.weight,
+            y,
+            self.total_patches,
+            self.patches_per_batch,
+            self.C,
+            self.T,
+            self.H,
+            self.W,
+            self.kT,
+            self.kH,
+            self.kW,
+            self.To,
+            self.Ho,
+            self.Wo,
+            self.embed_dim,
+            self.K,
+            BLOCK_M=block_m,
+            BLOCK_N=block_n,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=3,
+        )
+        return y
+
+
+B = 1
+C = 3
+T = 2
+H = 224
+W = 224
+kT = 2
+kH = 14
+kW = 14
+embed_dim = 1280
+
+
+def get_inputs():
+    x = torch.randn(B, C, T, H, W, dtype=torch.bfloat16) * 0.5
+    return [x]
+
+
+def get_init_inputs():
+    return [B, C, T, H, W, kT, kH, kW, embed_dim]
args
{
  "raw": "<4876 chars \u2014 see below>"
}
raw (4876 chars — TRUNCATED)
*** Begin Patch
*** Add File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
+import torch
+import torch.nn as nn
+import triton
+import triton.language as tl
+
+
+@triton.jit
+def _patch_embed_kernel(
+    x,
+    weight,
+    y,
+    total_patches: tl.constexpr,
+    patches_per_batch: tl.constexpr,
+    C: tl.constexpr,
+    T: tl.constexpr,
+    H: tl.constexpr,
+    W: tl.constexpr,
+    kT: tl.constexpr,
+    kH: tl.constexpr,
+    kW: tl.constexpr,
+    To: tl.constexpr,
+    Ho: tl.constexpr,
+    Wo: tl.constexpr,
+    embed_dim: tl.constexpr,
+    K: tl.constexpr,
+    BLOCK_M: tl.constexpr,
+    BLOCK_N: tl.constexpr,
+    BLOCK_K: tl.constexpr,
+):
+    pid_m = tl.program_id(0)
+    pid_n = tl.program_id(1)
+
+    offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)
+    offs_n = pid_n * BLOCK_N + tl.arange(0, BLOCK_N)
+
+    b = offs_m // patches_per_batch
+    local_m = offs_m - b * patches_per_batch
+    ot = local_m // (Ho * Wo)
+    rem = local_m - ot * (Ho * Wo)
+    oh = rem // Wo
+    ow = rem - oh * Wo
+
+    acc = tl.zeros((BLOCK_M, BLOCK_N), tl.float32)
+
+    for k0 in range(0, K, BLOCK_K):
+        offs_k = k0 + tl.arange(0, BLOCK_K)
+        c = offs_k // (kT * kH * kW)
+        kr = offs_k - c * (kT * kH * kW)
+        kt = kr // (kH * kW)
+        kr = kr - kt * (kH * kW)
+        kh = kr // kW
+        kw = kr - kh * kW
+
+        x_t = ot[:, None] * kT + kt[None, :]
+        x_h = oh[:, None] * kH + kh[None, :]
+        x_w = ow[:, None] * kW + kw[None, :]
+        x_offsets = ((((b[:, None] * C + c[None, :]) * T + x_t) * H + x_h) * W + x_w)
+        w_offsets = offs_n[None, :] * K + offs_k[:, None]
+
+        a = tl.load(
+            x + x_offsets,
+            mask=(offs_m[:, None] < total_patches) & (offs_k[None, :] < K),
+            other=0.0,
+        )
+        wv = tl.load(
+            weight + w_offsets,
+            mask=(offs_k[:, None] < K) & (offs_n[None, :] < embed_dim),
+            other=0.0,
+        )
+        acc += tl.dot(a, wv)
+
+    y_offsets = (
+        b[:, None] * (embed_dim * patches_per_batch)
+        + offs_n[None, :] * patches_per_batch
+        + local_m[:, None]
+    )
+    tl.store(
+        y + y_offsets,
+        acc,
+        mask=(offs_m[:, None] < total_patches) & (offs_n[None, :] < embed_dim),
+    )
+
+
+class _WeightOnly(nn.Module):
+    def __init__(self, C: int, kT: int, kH: int, kW: int, embed_dim: int):
+        super().__init__()
+        self.weight = nn.Parameter(
+            torch.empty((embed_dim, C, kT, kH, kW), dtype=torch.bfloat16)
+        )
+
+
+class Model(nn.Module):
+    def __init__(
+        self,
+        B: int,
+        C: int,
+        T: int,
+        H: int,
+        W: int,
+        kT: int,
+        kH: int,
+        kW: int,
+        embed_dim: int,
+    ):
+        super().__init__()
+        assert T % kT == 0 and H % kH == 0 and W % kW == 0
+        self.B, self.C, self.T, self.H, self.W = B, C, T, H, W
+        self.kT, self.kH, self.kW = kT, kH, kW
+        self.embed_dim = embed_dim
+        self.To, self.Ho, self.Wo = T // kT, H // kH, W // kW
+        self.K = C * kT * kH * kW
+        self.total_patches = B * self.To * self.Ho * self.Wo
+        self.patches_per_batch = self.To * self.Ho * self.Wo
+
+        self.conv = _WeightOnly(C, kT, kH, kW, embed_dim)
+        nn.init.normal_(self.conv.weight, std=0.02)
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+        y = torch.empty(
+            (self.B, self.embed_dim, self.To, self.Ho, self.Wo),
+            device=x.device,
+            dtype=x.dtype,
+        )
+
+        if self.K == 768:
+            block_m = 16
+            block_n = 64
+            block_k = 64
+            warps = 4
+        else:
+            block_m = 16
+            block_n = 64
+            block_k = 64
+            warps = 4
+
+        grid = (triton.cdiv(self.total_patches, block_m), triton.cdiv(self.embed_dim, block_n))
+        _patch_em

... (876 more chars)
tool
stdout (186 chars)
output:
  Success. Updated the following files:
  A /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
`solution.py` now has the first custom Triton path. I’ll run the official correctness check before spending time on tuning because it also catches state_dict and forbidden-op mistakes.
assistant
exec_command
args
{
  "cmd": "uv run python check.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (113 chars)
Chunk ID: 001e6c
Wall time: 1.0018 seconds
Process running with session ID 86157
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 86157,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (107 chars)
Chunk ID: 7ba8d5
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 2
Output:
PASS
assistant
Correctness passes across all four shapes and three seeds. Next I’ll get baseline timing against eager, compiled, and cuDNN SOTA so the tuning has real numbers to chase.
assistant
exec_command
args
{
  "cmd": "uv run python benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (113 chars)
Chunk ID: 4f86f9
Wall time: 1.0011 seconds
Process running with session ID 84571
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 84571,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 12000
}
tool
stdout (1219 chars)
Chunk ID: 031a4f
Wall time: 1.2876 seconds
Process exited with code 0
Original token count: 279
Output:
shape=0 variant=eager tflops=3.692 gbps=20.444 ms=0.209
shape=0 variant=compiled tflops=3.152 gbps=17.454 ms=0.245
shape=0 variant=sota tflops=3.694 gbps=20.455 ms=0.209
shape=0 variant=solution tflops=23.014 gbps=127.450 ms=0.033
shape=0 solution_peak_fraction=0.1151
shape=1 variant=eager tflops=13.935 gbps=36.344 ms=0.221
shape=1 variant=compiled tflops=12.046 gbps=31.418 ms=0.256
shape=1 variant=sota tflops=14.104 gbps=36.786 ms=0.219
shape=1 variant=solution tflops=42.845 gbps=111.747 ms=0.072
shape=1 solution_peak_fraction=0.2142
shape=2 variant=eager tflops=26.317 gbps=54.361 ms=0.264
shape=2 variant=compiled tflops=23.158 gbps=47.836 ms=0.300
shape=2 variant=sota tflops=26.870 gbps=55.503 ms=0.258
shape=2 variant=solution tflops=55.895 gbps=115.457 ms=0.124
shape=2 solution_peak_fraction=0.2795
shape=3 variant=eager tflops=6.486 gbps=25.163 ms=0.143
shape=3 variant=compiled tflops=5.210 gbps=20.212 ms=0.178
shape=3 variant=sota tflops=6.577 gbps=25.518 ms=0.141
shape=3 variant=solution tflops=36.423 gbps=141.308 ms=0.025
shape=3 solution_peak_fraction=0.1821
peak_fraction: 0.1882
RESULT: OK
assistant
The first kernel is already well above the cuDNN path, but the score is still mostly launch/tile-overhead limited. I’m going to sweep Triton tile sizes against the benchmark’s timing helper, then bake the best per-shape choices into `forward`.
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_triton.py
diff (112 lines)
--- /dev/null
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_triton.py
@@ -0,0 +1,109 @@
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+import torch
+
+REPO_ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(REPO_ROOT))
+
+from src.eval.timing import time_fn  # noqa: E402
+
+import reference  # noqa: E402
+import shapes  # noqa: E402
+import solution  # noqa: E402
+
+
+CONFIGS = [
+    (8, 64, 64, 4, 3),
+    (16, 32, 64, 4, 3),
+    (16, 64, 32, 4, 3),
+    (16, 64, 64, 4, 3),
+    (16, 64, 128, 4, 3),
+    (16, 128, 32, 4, 3),
+    (16, 128, 64, 4, 3),
+    (32, 32, 64, 4, 3),
+    (32, 64, 32, 4, 3),
+    (32, 64, 64, 4, 3),
+    (32, 64, 128, 4, 3),
+    (32, 128, 32, 4, 3),
+    (32, 128, 64, 4, 3),
+    (64, 32, 64, 4, 3),
+    (64, 64, 32, 4, 3),
+    (64, 64, 64, 4, 3),
+    (16, 64, 64, 8, 3),
+    (32, 64, 64, 8, 3),
+    (32, 128, 64, 8, 3),
+]
+
+
+def run_one(model: solution.Model, x: torch.Tensor, cfg: tuple[int, int, int, int, int]):
+    block_m, block_n, block_k, warps, stages = cfg
+
+    def fn(inp: torch.Tensor):
+        y = torch.empty(
+            (model.B, model.embed_dim, model.To, model.Ho, model.Wo),
+            device=inp.device,
+            dtype=inp.dtype,
+        )
+        grid = (
+            solution.triton.cdiv(model.total_patches, block_m),
+            solution.triton.cdiv(model.embed_dim, block_n),
+        )
+        solution._patch_embed_kernel[grid](
+            inp,
+            model.conv.weight,
+            y,
+            model.total_patches,
+            model.patches_per_batch,
+            model.C,
+            model.T,
+            model.H,
+            model.W,
+            model.kT,
+            model.kH,
+            model.kW,
+            model.To,
+            model.Ho,
+            model.Wo,
+            model.embed_dim,
+            model.K,
+            BLOCK_M=block_m,
+            BLOCK_N=block_n,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=stages,
+        )
+        return y
+
+    return time_fn(fn, [x], iters=12, warmup=5)
+
+
+def main() -> None:
+    device = torch.device("cuda:0")
+    for shape_idx, shape in enumerate(shapes.SHAPES):
+        for k, v in shape.items():
+            setattr(reference, k, v)
+        init_args = reference.get_init_inputs()
+        ref = reference.Model(*init_args).to(device).eval()
+        model = solution.Model(*init_args).to(device).eval()
+        model.load_state_dict(ref.state_dict(), strict=True)
+        torch.manual_seed(2026)
+        x = reference.get_inputs()[0].to(device)
+        print(f"shape={shape_idx} {shape}")
+        best = None
+        for cfg in CONFIGS:
+            try:
+                ms = run_one(model, x, cfg)
+            except Exception as exc:  # noqa: BLE001
+                print(f"  cfg={cfg} error={type(exc).__name__}: {exc}")
+                continue
+            if best is None or ms < best[0]:
+                best = (ms, cfg)
+            print(f"  cfg={cfg} ms={ms:.4f}")
+        print(f"best shape={shape_idx} cfg={best[1]} ms={best[0]:.4f}")
+
+
+if __name__ == "__main__":
+    main()
args
{
  "raw": "<3222 chars \u2014 see below>"
}
raw (3222 chars)
*** Begin Patch
*** Add File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_triton.py
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+import torch
+
+REPO_ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(REPO_ROOT))
+
+from src.eval.timing import time_fn  # noqa: E402
+
+import reference  # noqa: E402
+import shapes  # noqa: E402
+import solution  # noqa: E402
+
+
+CONFIGS = [
+    (8, 64, 64, 4, 3),
+    (16, 32, 64, 4, 3),
+    (16, 64, 32, 4, 3),
+    (16, 64, 64, 4, 3),
+    (16, 64, 128, 4, 3),
+    (16, 128, 32, 4, 3),
+    (16, 128, 64, 4, 3),
+    (32, 32, 64, 4, 3),
+    (32, 64, 32, 4, 3),
+    (32, 64, 64, 4, 3),
+    (32, 64, 128, 4, 3),
+    (32, 128, 32, 4, 3),
+    (32, 128, 64, 4, 3),
+    (64, 32, 64, 4, 3),
+    (64, 64, 32, 4, 3),
+    (64, 64, 64, 4, 3),
+    (16, 64, 64, 8, 3),
+    (32, 64, 64, 8, 3),
+    (32, 128, 64, 8, 3),
+]
+
+
+def run_one(model: solution.Model, x: torch.Tensor, cfg: tuple[int, int, int, int, int]):
+    block_m, block_n, block_k, warps, stages = cfg
+
+    def fn(inp: torch.Tensor):
+        y = torch.empty(
+            (model.B, model.embed_dim, model.To, model.Ho, model.Wo),
+            device=inp.device,
+            dtype=inp.dtype,
+        )
+        grid = (
+            solution.triton.cdiv(model.total_patches, block_m),
+            solution.triton.cdiv(model.embed_dim, block_n),
+        )
+        solution._patch_embed_kernel[grid](
+            inp,
+            model.conv.weight,
+            y,
+            model.total_patches,
+            model.patches_per_batch,
+            model.C,
+            model.T,
+            model.H,
+            model.W,
+            model.kT,
+            model.kH,
+            model.kW,
+            model.To,
+            model.Ho,
+            model.Wo,
+            model.embed_dim,
+            model.K,
+            BLOCK_M=block_m,
+            BLOCK_N=block_n,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=stages,
+        )
+        return y
+
+    return time_fn(fn, [x], iters=12, warmup=5)
+
+
+def main() -> None:
+    device = torch.device("cuda:0")
+    for shape_idx, shape in enumerate(shapes.SHAPES):
+        for k, v in shape.items():
+            setattr(reference, k, v)
+        init_args = reference.get_init_inputs()
+        ref = reference.Model(*init_args).to(device).eval()
+        model = solution.Model(*init_args).to(device).eval()
+        model.load_state_dict(ref.state_dict(), strict=True)
+        torch.manual_seed(2026)
+        x = reference.get_inputs()[0].to(device)
+        print(f"shape={shape_idx} {shape}")
+        best = None
+        for cfg in CONFIGS:
+            try:
+                ms = run_one(model, x, cfg)
+            except Exception as exc:  # noqa: BLE001
+                print(f"  cfg={cfg} error={type(exc).__name__}: {exc}")
+                continue
+            if best is None or ms < best[0]:
+                best = (ms, cfg)
+            print(f"  cfg={cfg} ms={ms:.4f}")
+        print(f"best shape={shape_idx} cfg={best[1]} ms={best[0]:.4f}")
+
+
+if __name__ == "__main__":
+    main()
*** End Patch
tool
stdout (189 chars)
output:
  Success. Updated the following files:
  A /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_triton.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
exec_command
args
{
  "cmd": "uv run python tune_triton.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 20000
}
tool
stdout (113 chars)
Chunk ID: 061e45
Wall time: 1.0011 seconds
Process running with session ID 69446
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 69446,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 20000
}
tool
stdout (113 chars)
Chunk ID: 28f252
Wall time: 5.0008 seconds
Process running with session ID 69446
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 69446,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 20000
}
tool
stdout (3377 chars) — TRUNCATED
Chunk ID: 2d2bfe
Wall time: 3.1313 seconds
Process exited with code 0
Original token count: 819
Output:
shape=0 {'B': 1, 'C': 3, 'T': 2, 'H': 224, 'W': 224, 'kT': 2, 'kH': 14, 'kW': 14, 'embed_dim': 1280}
  cfg=(8, 64, 64, 4, 3) ms=0.0435
  cfg=(16, 32, 64, 4, 3) ms=0.0370
  cfg=(16, 64, 32, 4, 3) ms=0.0424
  cfg=(16, 64, 64, 4, 3) ms=0.0333
  cfg=(16, 64, 128, 4, 3) ms=0.0342
  cfg=(16, 128, 32, 4, 3) ms=0.0486
  cfg=(16, 128, 64, 4, 3) ms=0.0358
  cfg=(32, 32, 64, 4, 3) ms=0.0392
  cfg=(32, 64, 32, 4, 3) ms=0.0502
  cfg=(32, 64, 64, 4, 3) ms=0.0390
  cfg=(32, 64, 128, 4, 3) ms=0.0382
  cfg=(32, 128, 32, 4, 3) ms=0.0516
  cfg=(32, 128, 64, 4, 3) ms=0.0441
  cfg=(64, 32, 64, 4, 3) ms=0.0462
  cfg=(64, 64, 32, 4, 3) ms=0.0564
  cfg=(64, 64, 64, 4, 3) ms=0.0489
  cfg=(16, 64, 64, 8, 3) ms=0.0328
  cfg=(32, 64, 64, 8, 3) ms=0.0353
  cfg=(32, 128, 64, 8, 3) ms=0.0400
best shape=0 cfg=(16, 64, 64, 8, 3) ms=0.0328
shape=1 {'B': 2, 'C': 3, 'T': 4, 'H': 224, 'W': 224, 'kT': 2, 'kH': 14, 'kW': 14, 'embed_dim': 1280}
  cfg=(8, 64, 64, 4, 3) ms=0.1021
  cfg=(16, 32, 64, 4, 3) ms=0.0845
  cfg=(16, 64, 32, 4, 3) ms=0.0699
  cfg=(16, 64, 64, 4, 3) ms=0.0705
  cfg=(16, 64, 128, 4, 3) ms=0.0792
  cfg=(16, 128, 32, 4, 3) ms=0.0701
  cfg=(16, 128, 64, 4, 3) ms=0.0649
  cfg=(32, 32, 64, 4, 3) ms=0.0824
  cfg=(32, 64, 32, 4, 3) ms=0.0561
  cfg=(32, 64, 64, 4, 3) ms=0.0447
  cfg=(32, 64, 128, 4, 3) ms=0.0648
  cfg=(32, 128, 32, 4, 3) ms=0.0563
  cfg=(32, 128, 64, 4, 3) ms=0.0496
  cfg=(64, 32, 64

... (1877 more chars)
assistant
reasoning (445 chars)
**Considering im2col and GEMM optimization** I’m thinking about replacing many integer operations with a pre-gathered im2col step followed by a contiguous matrix multiplication in Triton. This might use more memory and an extra kernel launch, but it could cut down expensive repeated reads and boost throughput, especially at large shapes. I want to explore a two-kernel approach with im2col gathering then GEMM to leverage tensor reuse better.
assistant
The timing sweep showed larger patch tiles help the bigger shapes, but the current tile orientation makes both weight loads and stores stride across the embed dimension. I’m adding a second Triton orientation that computes `(embed tile, patch tile)` so each weight row and output row is contiguous in memory.
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
diff (212 lines — TRUNCATED)
--- a//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@ -1,11 +1,10 @@
-import torch
-import torch.nn as nn
-import triton
-import triton.language as tl
+@triton.jit
+def _patch_embed_kernel(
+    )
 
 
 @triton.jit
-def _patch_embed_kernel(
+def _patch_embed_kernel_em(
     x,
     weight,
     y,
@@ -23,15 +22,15 @@
     Wo: tl.constexpr,
     embed_dim: tl.constexpr,
     K: tl.constexpr,
+    BLOCK_E: tl.constexpr,
     BLOCK_M: tl.constexpr,
-    BLOCK_N: tl.constexpr,
     BLOCK_K: tl.constexpr,
 ):
-    pid_m = tl.program_id(0)
-    pid_n = tl.program_id(1)
+    pid_e = tl.program_id(0)
+    pid_m = tl.program_id(1)
 
+    offs_e = pid_e * BLOCK_E + tl.arange(0, BLOCK_E)
     offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)
-    offs_n = pid_n * BLOCK_N + tl.arange(0, BLOCK_N)
 
     b = offs_m // patches_per_batch
     local_m = offs_m - b * patches_per_batch
@@ -40,7 +39,7 @@
     oh = rem // Wo
     ow = rem - oh * Wo
 
-    acc = tl.zeros((BLOCK_M, BLOCK_N), tl.float32)
+    acc = tl.zeros((BLOCK_E, BLOCK_M), tl.float32)
 
     for k0 in range(0, K, BLOCK_K):
         offs_k = k0 + tl.arange(0, BLOCK_K)
@@ -51,131 +50,67 @@
         kh = kr // kW
         kw = kr - kh * kW
 
-        x_t = ot[:, None] * kT + kt[None, :]
-        x_h = oh[:, None] * kH + kh[None, :]
-        x_w = ow[:, None] * kW + kw[None, :]
-        x_offsets = ((((b[:, None] * C + c[None, :]) * T + x_t) * H + x_h) * W + x_w)
-        w_offsets = offs_n[None, :] * K + offs_k[:, None]
+        x_t = ot[None, :] * kT + kt[:, None]
+        x_h = oh[None, :] * kH + kh[:, None]
+        x_w = ow[None, :] * kW + kw[:, None]
+        x_offsets = ((((b[None, :] * C + c[:, None]) * T + x_t) * H + x_h) * W + x_w)
+        w_offsets = offs_e[:, None] * K + offs_k[None, :]
 
+        wv = tl.load(
+            weight + w_offsets,
+            mask=(offs_e[:, None] < embed_dim) & (offs_k[None, :] < K),
+            other=0.0,
+        )
         a = tl.load(
             x + x_offsets,
-            mask=(offs_m[:, None] < total_patches) & (offs_k[None, :] < K),
+            mask=(offs_k[:, None] < K) & (offs_m[None, :] < total_patches),
             other=0.0,
         )
-        wv = tl.load(
-            weight + w_offsets,
-            mask=(offs_k[:, None] < K) & (offs_n[None, :] < embed_dim),
-            other=0.0,
-        )
-        acc += tl.dot(a, wv)
+        acc += tl.dot(wv, a)
 
     y_offsets = (
-        b[:, None] * (embed_dim * patches_per_batch)
-        + offs_n[None, :] * patches_per_batch
-        + local_m[:, None]
+        b[None, :] * (embed_dim * patches_per_batch)
+        + offs_e[:, None] * patches_per_batch
+        + local_m[None, :]
     )
     tl.store(
         y + y_offsets,
         acc,
-        mask=(offs_m[:, None] < total_patches) & (offs_n[None, :] < embed_dim),
+        mask=(offs_e[:, None] < embed_dim) & (offs_m[None, :] < total_patches),
     )
 
 
 class _WeightOnly(nn.Module):
-    def __init__(self, C: int, kT: int, kH: int, kW: int, embed_dim: int):
-        super().__init__()
-        self.weight = nn.Parameter(
-            torch.empty((embed_dim, C, kT, kH, kW), dtype=torch.bfloat16)
-        )
-
-
-class Model(nn.Module):
-    def __init__(
-        self,
-        B: int,
-        C: int,
-        T: int,
-        H: int,
-        W: int,
-        kT: int,
-        kH: int,
-        kW: int,
-        embed_dim: int,
-    ):
-        super().__init__()
-        assert T % kT == 0 and H % kH == 0 and W % kW == 0
-        self.B, self.C, self.T, self.H, self.W = B, C, T, H, W
-        self.kT, self.kH, self.kW = kT, kH, kW
-        self.embed_dim = embed_dim
-        self.To, self.Ho, self.Wo = T // kT, H // kH, W // kW
-        self.K = C * kT * kH * kW
-        self.total_patches = B * self.To * self.Ho * self.Wo
-        self.patches_per_batch = self.To * self.Ho * self.Wo
-
-        self.conv = _WeightOnly(C, kT, kH, kW, embed_dim)
-        nn.init.normal_(self.conv.weight, std=0.02)
-
-    def forward(self, x: torch.Tensor) -> torch.Tensor:
-        y = torch.empty(
-            (self.B, self.embed_dim, self.To, self.Ho, self.Wo),
-            device=x.device,
-            dtype=x.dtype,
-        )
-
         if self.K == 768:
+            block_e = 64
+            block_m = 32
+            block_k = 128
+            warps = 4
+        elif self.total_patches <= 256:
+            block_e = 64
             block_m = 16
-            block_n = 64
             block_k = 64
-            warps = 4
+            warps = 8
+        elif self.total_patches <= 1024:
+            block_e = 128
+            block_m = 32
+            block_k = 64
+            warps = 8
         else:
-            block_m = 16
-            block_n = 64
+            block_e = 64
+            block_m = 64
             block_k = 64
             warps = 4
 
-        grid = (triton.cdiv(self.total_patches, block_m), triton.cdiv(self.embed_dim, block_n))
-        _patch_embed_kernel[grid](
+        grid = (triton.cdiv(self.embed_dim, block_e), triton.cdiv(self.total_patches, block_m))
+        _patch_embed_kernel_em[grid](
             x,
             self.conv.weight,
             y,
-            self.total_patches,
-            self.patches_per_batch,
-            self.C,
-            self.T,
-            self.H,
-            self.W,
-            self.kT,
-            self.kH,
-            self.kW,
-            self.To,
-            self.Ho,
-            self.Wo,
             self.embed_dim,
             self.K,
+            BLOCK_E=block_e,
             BLOCK_M=block_m,
-            BLOCK_N=block_n,
             BLOCK_K=block_k,
             num_warps=warps,
             num_stages=3,
-        )
-        return y
-
-
-B = 1
-C = 3
-T = 2
-H = 224
-W = 224
-kT = 2
-kH = 14
-kW = 14
-embed_dim = 1280
-
-
-def get_inputs():
-    x = torch.randn(B, C, T, H, W, dtype=torch.bf

... (109 more chars)
args
{
  "raw": "<3651 chars \u2014 see below>"
}
raw (3651 chars)
*** Begin Patch
*** Update File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@
 @triton.jit
 def _patch_embed_kernel(
@@
     )
 
 
+@triton.jit
+def _patch_embed_kernel_em(
+    x,
+    weight,
+    y,
+    total_patches: tl.constexpr,
+    patches_per_batch: tl.constexpr,
+    C: tl.constexpr,
+    T: tl.constexpr,
+    H: tl.constexpr,
+    W: tl.constexpr,
+    kT: tl.constexpr,
+    kH: tl.constexpr,
+    kW: tl.constexpr,
+    To: tl.constexpr,
+    Ho: tl.constexpr,
+    Wo: tl.constexpr,
+    embed_dim: tl.constexpr,
+    K: tl.constexpr,
+    BLOCK_E: tl.constexpr,
+    BLOCK_M: tl.constexpr,
+    BLOCK_K: tl.constexpr,
+):
+    pid_e = tl.program_id(0)
+    pid_m = tl.program_id(1)
+
+    offs_e = pid_e * BLOCK_E + tl.arange(0, BLOCK_E)
+    offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)
+
+    b = offs_m // patches_per_batch
+    local_m = offs_m - b * patches_per_batch
+    ot = local_m // (Ho * Wo)
+    rem = local_m - ot * (Ho * Wo)
+    oh = rem // Wo
+    ow = rem - oh * Wo
+
+    acc = tl.zeros((BLOCK_E, BLOCK_M), tl.float32)
+
+    for k0 in range(0, K, BLOCK_K):
+        offs_k = k0 + tl.arange(0, BLOCK_K)
+        c = offs_k // (kT * kH * kW)
+        kr = offs_k - c * (kT * kH * kW)
+        kt = kr // (kH * kW)
+        kr = kr - kt * (kH * kW)
+        kh = kr // kW
+        kw = kr - kh * kW
+
+        x_t = ot[None, :] * kT + kt[:, None]
+        x_h = oh[None, :] * kH + kh[:, None]
+        x_w = ow[None, :] * kW + kw[:, None]
+        x_offsets = ((((b[None, :] * C + c[:, None]) * T + x_t) * H + x_h) * W + x_w)
+        w_offsets = offs_e[:, None] * K + offs_k[None, :]
+
+        wv = tl.load(
+            weight + w_offsets,
+            mask=(offs_e[:, None] < embed_dim) & (offs_k[None, :] < K),
+            other=0.0,
+        )
+        a = tl.load(
+            x + x_offsets,
+            mask=(offs_k[:, None] < K) & (offs_m[None, :] < total_patches),
+            other=0.0,
+        )
+        acc += tl.dot(wv, a)
+
+    y_offsets = (
+        b[None, :] * (embed_dim * patches_per_batch)
+        + offs_e[:, None] * patches_per_batch
+        + local_m[None, :]
+    )
+    tl.store(
+        y + y_offsets,
+        acc,
+        mask=(offs_e[:, None] < embed_dim) & (offs_m[None, :] < total_patches),
+    )
+
+
 class _WeightOnly(nn.Module):
@@
-        if self.K == 768:
-            block_m = 16
-            block_n = 64
-            block_k = 64
-            warps = 4
+        if self.K == 768:
+            block_e = 64
+            block_m = 32
+            block_k = 128
+            warps = 4
+        elif self.total_patches <= 256:
+            block_e = 64
+            block_m = 16
+            block_k = 64
+            warps = 8
+        elif self.total_patches <= 1024:
+            block_e = 128
+            block_m = 32
+            block_k = 64
+            warps = 8
         else:
-            block_m = 16
-            block_n = 64
+            block_e = 64
+            block_m = 64
             block_k = 64
             warps = 4
 
-        grid = (triton.cdiv(self.total_patches, block_m), triton.cdiv(self.embed_dim, block_n))
-        _patch_embed_kernel[grid](
+        grid = (triton.cdiv(self.embed_dim, block_e), triton.cdiv(self.total_patches, block_m))
+        _patch_embed_kernel_em[grid](
             x,
             self.conv.weight,
             y,
@@
             self.embed_dim,
             self.K,
+            BLOCK_E=block_e,
             BLOCK_M=block_m,
-            BLOCK_N=block_n,
             BLOCK_K=block_k,
             num_warps=warps,
             num_stages=3,
*** End Patch
tool
stdout (186 chars)
output:
  Success. Updated the following files:
  M /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
exec_command
args
{
  "cmd": "uv run python check.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (113 chars)
Chunk ID: f93a83
Wall time: 1.0010 seconds
Process running with session ID 85133
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 85133,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (107 chars)
Chunk ID: e4b5dc
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 2
Output:
PASS
assistant
exec_command
args
{
  "cmd": "uv run python benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (113 chars)
Chunk ID: ac7766
Wall time: 1.0011 seconds
Process running with session ID 14899
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 14899,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (1219 chars)
Chunk ID: e56708
Wall time: 1.2014 seconds
Process exited with code 0
Original token count: 279
Output:
shape=0 variant=eager tflops=3.686 gbps=20.414 ms=0.209
shape=0 variant=compiled tflops=3.164 gbps=17.522 ms=0.244
shape=0 variant=sota tflops=3.718 gbps=20.587 ms=0.207
shape=0 variant=solution tflops=22.415 gbps=124.128 ms=0.034
shape=0 solution_peak_fraction=0.1121
shape=1 variant=eager tflops=13.962 gbps=36.415 ms=0.221
shape=1 variant=compiled tflops=11.994 gbps=31.281 ms=0.257
shape=1 variant=sota tflops=14.107 gbps=36.794 ms=0.219
shape=1 variant=solution tflops=72.163 gbps=188.213 ms=0.043
shape=1 solution_peak_fraction=0.3608
shape=2 variant=eager tflops=26.346 gbps=54.420 ms=0.263
shape=2 variant=compiled tflops=23.135 gbps=47.787 ms=0.300
shape=2 variant=sota tflops=26.897 gbps=55.558 ms=0.258
shape=2 variant=solution tflops=83.002 gbps=171.451 ms=0.084
shape=2 solution_peak_fraction=0.4150
shape=3 variant=eager tflops=6.443 gbps=24.995 ms=0.144
shape=3 variant=compiled tflops=5.118 gbps=19.854 ms=0.181
shape=3 variant=sota tflops=6.569 gbps=25.487 ms=0.141
shape=3 variant=solution tflops=38.280 gbps=148.514 ms=0.024
shape=3 solution_peak_fraction=0.1914
peak_fraction: 0.2381
RESULT: OK
assistant
The embed-major orientation helped the medium shape but hurt the largest one, so this is not a universal replacement. I’m going to tune both orientations and select per shape instead of forcing one layout.
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_orientations.py
diff (154 lines)
--- /dev/null
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_orientations.py
@@ -0,0 +1,151 @@
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+import torch
+
+REPO_ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(REPO_ROOT))
+
+from src.eval.timing import time_fn  # noqa: E402
+
+import reference  # noqa: E402
+import shapes  # noqa: E402
+import solution  # noqa: E402
+
+
+CONFIGS = [
+    (16, 64, 64, 4, 3),
+    (16, 64, 64, 8, 3),
+    (16, 128, 64, 4, 3),
+    (32, 64, 32, 4, 3),
+    (32, 64, 64, 4, 3),
+    (32, 64, 64, 8, 3),
+    (32, 64, 128, 4, 3),
+    (32, 128, 32, 4, 3),
+    (32, 128, 64, 4, 3),
+    (32, 128, 64, 8, 3),
+    (64, 64, 32, 4, 3),
+    (64, 64, 64, 4, 3),
+    (64, 64, 64, 8, 3),
+    (64, 128, 32, 4, 3),
+    (64, 128, 64, 4, 3),
+    (128, 32, 64, 4, 3),
+    (128, 64, 32, 4, 3),
+    (128, 64, 64, 4, 3),
+]
+
+
+def run_mn(model: solution.Model, x: torch.Tensor, cfg: tuple[int, int, int, int, int]):
+    block_m, block_n, block_k, warps, stages = cfg
+
+    def fn(inp: torch.Tensor):
+        y = torch.empty(
+            (model.B, model.embed_dim, model.To, model.Ho, model.Wo),
+            device=inp.device,
+            dtype=inp.dtype,
+        )
+        grid = (
+            solution.triton.cdiv(model.total_patches, block_m),
+            solution.triton.cdiv(model.embed_dim, block_n),
+        )
+        solution._patch_embed_kernel[grid](
+            inp,
+            model.conv.weight,
+            y,
+            model.total_patches,
+            model.patches_per_batch,
+            model.C,
+            model.T,
+            model.H,
+            model.W,
+            model.kT,
+            model.kH,
+            model.kW,
+            model.To,
+            model.Ho,
+            model.Wo,
+            model.embed_dim,
+            model.K,
+            BLOCK_M=block_m,
+            BLOCK_N=block_n,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=stages,
+        )
+        return y
+
+    return time_fn(fn, [x], iters=10, warmup=5)
+
+
+def run_em(model: solution.Model, x: torch.Tensor, cfg: tuple[int, int, int, int, int]):
+    block_e, block_m, block_k, warps, stages = cfg
+
+    def fn(inp: torch.Tensor):
+        y = torch.empty(
+            (model.B, model.embed_dim, model.To, model.Ho, model.Wo),
+            device=inp.device,
+            dtype=inp.dtype,
+        )
+        grid = (
+            solution.triton.cdiv(model.embed_dim, block_e),
+            solution.triton.cdiv(model.total_patches, block_m),
+        )
+        solution._patch_embed_kernel_em[grid](
+            inp,
+            model.conv.weight,
+            y,
+            model.total_patches,
+            model.patches_per_batch,
+            model.C,
+            model.T,
+            model.H,
+            model.W,
+            model.kT,
+            model.kH,
+            model.kW,
+            model.To,
+            model.Ho,
+            model.Wo,
+            model.embed_dim,
+            model.K,
+            BLOCK_E=block_e,
+            BLOCK_M=block_m,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=stages,
+        )
+        return y
+
+    return time_fn(fn, [x], iters=10, warmup=5)
+
+
+def main() -> None:
+    device = torch.device("cuda:0")
+    for shape_idx, shape in enumerate(shapes.SHAPES):
+        for k, v in shape.items():
+            setattr(reference, k, v)
+        init_args = reference.get_init_inputs()
+        ref = reference.Model(*init_args).to(device).eval()
+        model = solution.Model(*init_args).to(device).eval()
+        model.load_state_dict(ref.state_dict(), strict=True)
+        torch.manual_seed(2026)
+        x = reference.get_inputs()[0].to(device)
+        print(f"shape={shape_idx} {shape}")
+        best = None
+        for orient, runner in (("mn", run_mn), ("em", run_em)):
+            for cfg in CONFIGS:
+                try:
+                    ms = runner(model, x, cfg)
+                except Exception as exc:  # noqa: BLE001
+                    print(f"  {orient} cfg={cfg} error={type(exc).__name__}: {exc}")
+                    continue
+                if best is None or ms < best[0]:
+                    best = (ms, orient, cfg)
+                print(f"  {orient} cfg={cfg} ms={ms:.4f}")
+        print(f"best shape={shape_idx} orient={best[1]} cfg={best[2]} ms={best[0]:.4f}")
+
+
+if __name__ == "__main__":
+    main()
args
{
  "raw": "<4550 chars \u2014 see below>"
}
raw (4550 chars — TRUNCATED)
*** Begin Patch
*** Add File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_orientations.py
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+import torch
+
+REPO_ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(REPO_ROOT))
+
+from src.eval.timing import time_fn  # noqa: E402
+
+import reference  # noqa: E402
+import shapes  # noqa: E402
+import solution  # noqa: E402
+
+
+CONFIGS = [
+    (16, 64, 64, 4, 3),
+    (16, 64, 64, 8, 3),
+    (16, 128, 64, 4, 3),
+    (32, 64, 32, 4, 3),
+    (32, 64, 64, 4, 3),
+    (32, 64, 64, 8, 3),
+    (32, 64, 128, 4, 3),
+    (32, 128, 32, 4, 3),
+    (32, 128, 64, 4, 3),
+    (32, 128, 64, 8, 3),
+    (64, 64, 32, 4, 3),
+    (64, 64, 64, 4, 3),
+    (64, 64, 64, 8, 3),
+    (64, 128, 32, 4, 3),
+    (64, 128, 64, 4, 3),
+    (128, 32, 64, 4, 3),
+    (128, 64, 32, 4, 3),
+    (128, 64, 64, 4, 3),
+]
+
+
+def run_mn(model: solution.Model, x: torch.Tensor, cfg: tuple[int, int, int, int, int]):
+    block_m, block_n, block_k, warps, stages = cfg
+
+    def fn(inp: torch.Tensor):
+        y = torch.empty(
+            (model.B, model.embed_dim, model.To, model.Ho, model.Wo),
+            device=inp.device,
+            dtype=inp.dtype,
+        )
+        grid = (
+            solution.triton.cdiv(model.total_patches, block_m),
+            solution.triton.cdiv(model.embed_dim, block_n),
+        )
+        solution._patch_embed_kernel[grid](
+            inp,
+            model.conv.weight,
+            y,
+            model.total_patches,
+            model.patches_per_batch,
+            model.C,
+            model.T,
+            model.H,
+            model.W,
+            model.kT,
+            model.kH,
+            model.kW,
+            model.To,
+            model.Ho,
+            model.Wo,
+            model.embed_dim,
+            model.K,
+            BLOCK_M=block_m,
+            BLOCK_N=block_n,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=stages,
+        )
+        return y
+
+    return time_fn(fn, [x], iters=10, warmup=5)
+
+
+def run_em(model: solution.Model, x: torch.Tensor, cfg: tuple[int, int, int, int, int]):
+    block_e, block_m, block_k, warps, stages = cfg
+
+    def fn(inp: torch.Tensor):
+        y = torch.empty(
+            (model.B, model.embed_dim, model.To, model.Ho, model.Wo),
+            device=inp.device,
+            dtype=inp.dtype,
+        )
+        grid = (
+            solution.triton.cdiv(model.embed_dim, block_e),
+            solution.triton.cdiv(model.total_patches, block_m),
+        )
+        solution._patch_embed_kernel_em[grid](
+            inp,
+            model.conv.weight,
+            y,
+            model.total_patches,
+            model.patches_per_batch,
+            model.C,
+            model.T,
+            model.H,
+            model.W,
+            model.kT,
+            model.kH,
+            model.kW,
+            model.To,
+            model.Ho,
+            model.Wo,
+            model.embed_dim,
+            model.K,
+            BLOCK_E=block_e,
+            BLOCK_M=block_m,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=stages,
+        )
+        return y
+
+    return time_fn(fn, [x], iters=10, warmup=5)
+
+
+def main() -> None:
+    device = torch.device("cuda:0")
+    for shape_idx, shape in enumerate(shapes.SHAPES):
+        for k, v in shape.items():
+            setattr(reference, k, v)
+        init_args = reference.get_init_inputs()
+        ref = reference.Model(*init_args).to(device).eval()
+        model = solution.Model(*init_args).to(device).eval()
+        model.load_state_dict(ref.state_dict(), strict=True)
+        torch.manual_seed(2026)
+        x = reference.get_inputs()[0].to(device)
+        print(f"shape={shape_idx} {shape}")
+        best = None
+        for orient, runner in (("mn", run_mn), ("em", run_em)):
+            for cfg in CONFIGS

... (550 more chars)
tool
stdout (195 chars)
output:
  Success. Updated the following files:
  A /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_orientations.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
exec_command
args
{
  "cmd": "uv run python tune_orientations.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 24000
}
tool
stdout (113 chars)
Chunk ID: 63b14d
Wall time: 1.0003 seconds
Process running with session ID 70688
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 70688,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 24000
}
tool
stdout (113 chars)
Chunk ID: 80780f
Wall time: 5.0011 seconds
Process running with session ID 70688
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 70688,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 24000
}
tool
stdout (113 chars)
Chunk ID: 3775d0
Wall time: 5.0011 seconds
Process running with session ID 70688
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 70688,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 30000
}
tool
stdout (113 chars)
Chunk ID: 59792b
Wall time: 5.0011 seconds
Process running with session ID 70688
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 70688,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 30000
}
tool
stdout (6287 chars) — TRUNCATED
Chunk ID: 351ccf
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 1546
Output:
shape=0 {'B': 1, 'C': 3, 'T': 2, 'H': 224, 'W': 224, 'kT': 2, 'kH': 14, 'kW': 14, 'embed_dim': 1280}
  mn cfg=(16, 64, 64, 4, 3) ms=0.0390
  mn cfg=(16, 64, 64, 8, 3) ms=0.0329
  mn cfg=(16, 128, 64, 4, 3) ms=0.0361
  mn cfg=(32, 64, 32, 4, 3) ms=0.0523
  mn cfg=(32, 64, 64, 4, 3) ms=0.0392
  mn cfg=(32, 64, 64, 8, 3) ms=0.0367
  mn cfg=(32, 64, 128, 4, 3) ms=0.0399
  mn cfg=(32, 128, 32, 4, 3) ms=0.0516
  mn cfg=(32, 128, 64, 4, 3) ms=0.0457
  mn cfg=(32, 128, 64, 8, 3) ms=0.0403
  mn cfg=(64, 64, 32, 4, 3) ms=0.0567
  mn cfg=(64, 64, 64, 4, 3) ms=0.0482
  mn cfg=(64, 64, 64, 8, 3) ms=0.0449
  mn cfg=(64, 128, 32, 4, 3) ms=0.0627
  mn cfg=(64, 128, 64, 4, 3) ms=0.0544
  mn cfg=(128, 32, 64, 4, 3) ms=0.0598
  mn cfg=(128, 64, 32, 4, 3) ms=0.0719
  mn cfg=(128, 64, 64, 4, 3) ms=0.0645
  em cfg=(16, 64, 64, 4, 3) ms=0.0421
  em cfg=(16, 64, 64, 8, 3) ms=0.0404
  em cfg=(16, 128, 64, 4, 3) ms=0.0606
  em cfg=(32, 64, 32, 4, 3) ms=0.0516
  em cfg=(32, 64, 64, 4, 3) ms=0.0447
  em cfg=(32, 64, 64, 8, 3) ms=0.0414
  em cfg=(32, 64, 128, 4, 3) ms=0.0396
  em cfg=(32, 128, 32, 4, 3) ms=0.0594
  em cfg=(32, 128, 64, 4, 3) ms=0.0590
  em cfg=(32, 128, 64, 8, 3) ms=0.0505
  em cfg=(64, 64, 32, 4, 3) ms=0.0508
  em cfg=(64, 64, 64, 4, 3) ms=0.0478
  em cfg=(64, 64, 64, 8, 3) ms=0.0433
  em cfg=(64, 128, 32, 4, 3) ms=0.0643
  em cfg=(64, 128, 64, 4, 3) ms=0.0670
  em cfg=(128, 32, 64, 

... (4787 more chars)
assistant
The combined sweep found the best path differs by shape: patch-major wins the smallest and ViT-B shape, embed-major wins the two larger Qwen-like cases. I’m wiring that selection into `forward` now.
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
diff (186 lines)
--- a//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@ -1,116 +1,84 @@
-@triton.jit
-def _patch_embed_kernel(
-    )
-
-
-@triton.jit
-def _patch_embed_kernel_em(
-    x,
-    weight,
-    y,
-    total_patches: tl.constexpr,
-    patches_per_batch: tl.constexpr,
-    C: tl.constexpr,
-    T: tl.constexpr,
-    H: tl.constexpr,
-    W: tl.constexpr,
-    kT: tl.constexpr,
-    kH: tl.constexpr,
-    kW: tl.constexpr,
-    To: tl.constexpr,
-    Ho: tl.constexpr,
-    Wo: tl.constexpr,
-    embed_dim: tl.constexpr,
-    K: tl.constexpr,
-    BLOCK_E: tl.constexpr,
-    BLOCK_M: tl.constexpr,
-    BLOCK_K: tl.constexpr,
-):
-    pid_e = tl.program_id(0)
-    pid_m = tl.program_id(1)
-
-    offs_e = pid_e * BLOCK_E + tl.arange(0, BLOCK_E)
-    offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)
-
-    b = offs_m // patches_per_batch
-    local_m = offs_m - b * patches_per_batch
-    ot = local_m // (Ho * Wo)
-    rem = local_m - ot * (Ho * Wo)
-    oh = rem // Wo
-    ow = rem - oh * Wo
-
-    acc = tl.zeros((BLOCK_E, BLOCK_M), tl.float32)
-
-    for k0 in range(0, K, BLOCK_K):
-        offs_k = k0 + tl.arange(0, BLOCK_K)
-        c = offs_k // (kT * kH * kW)
-        kr = offs_k - c * (kT * kH * kW)
-        kt = kr // (kH * kW)
-        kr = kr - kt * (kH * kW)
-        kh = kr // kW
-        kw = kr - kh * kW
-
-        x_t = ot[None, :] * kT + kt[:, None]
-        x_h = oh[None, :] * kH + kh[:, None]
-        x_w = ow[None, :] * kW + kw[:, None]
-        x_offsets = ((((b[None, :] * C + c[:, None]) * T + x_t) * H + x_h) * W + x_w)
-        w_offsets = offs_e[:, None] * K + offs_k[None, :]
-
-        wv = tl.load(
-            weight + w_offsets,
-            mask=(offs_e[:, None] < embed_dim) & (offs_k[None, :] < K),
-            other=0.0,
-        )
-        a = tl.load(
-            x + x_offsets,
-            mask=(offs_k[:, None] < K) & (offs_m[None, :] < total_patches),
-            other=0.0,
-        )
-        acc += tl.dot(wv, a)
-
-    y_offsets = (
-        b[None, :] * (embed_dim * patches_per_batch)
-        + offs_e[:, None] * patches_per_batch
-        + local_m[None, :]
-    )
-    tl.store(
-        y + y_offsets,
-        acc,
-        mask=(offs_e[:, None] < embed_dim) & (offs_m[None, :] < total_patches),
-    )
-
-
-class _WeightOnly(nn.Module):
         if self.K == 768:
-            block_e = 64
+            use_patch_major = True
             block_m = 32
+            block_n = 64
             block_k = 128
             warps = 4
         elif self.total_patches <= 256:
-            block_e = 64
+            use_patch_major = True
             block_m = 16
+            block_n = 64
             block_k = 64
             warps = 8
         elif self.total_patches <= 1024:
+            use_patch_major = False
             block_e = 128
             block_m = 32
             block_k = 64
-            warps = 8
+            warps = 4
         else:
-            block_e = 64
+            use_patch_major = False
+            block_e = 128
             block_m = 64
             block_k = 64
             warps = 4
 
-        grid = (triton.cdiv(self.embed_dim, block_e), triton.cdiv(self.total_patches, block_m))
-        _patch_embed_kernel_em[grid](
-            x,
-            self.conv.weight,
-            y,
-            self.embed_dim,
-            self.K,
-            BLOCK_E=block_e,
-            BLOCK_M=block_m,
-            BLOCK_K=block_k,
-            num_warps=warps,
-            num_stages=3,
+        if use_patch_major:
+            grid = (
+                triton.cdiv(self.total_patches, block_m),
+                triton.cdiv(self.embed_dim, block_n),
+            )
+            _patch_embed_kernel[grid](
+                x,
+                self.conv.weight,
+                y,
+                self.total_patches,
+                self.patches_per_batch,
+                self.C,
+                self.T,
+                self.H,
+                self.W,
+                self.kT,
+                self.kH,
+                self.kW,
+                self.To,
+                self.Ho,
+                self.Wo,
+                self.embed_dim,
+                self.K,
+                BLOCK_M=block_m,
+                BLOCK_N=block_n,
+                BLOCK_K=block_k,
+                num_warps=warps,
+                num_stages=3,
+            )
+        else:
+            grid = (
+                triton.cdiv(self.embed_dim, block_e),
+                triton.cdiv(self.total_patches, block_m),
+            )
+            _patch_embed_kernel_em[grid](
+                x,
+                self.conv.weight,
+                y,
+                self.total_patches,
+                self.patches_per_batch,
+                self.C,
+                self.T,
+                self.H,
+                self.W,
+                self.kT,
+                self.kH,
+                self.kW,
+                self.To,
+                self.Ho,
+                self.Wo,
+                self.embed_dim,
+                self.K,
+                BLOCK_E=block_e,
+                BLOCK_M=block_m,
+                BLOCK_K=block_k,
+                num_warps=warps,
+                num_stages=3,
+            )
+        return y
args
{
  "raw": "<3660 chars \u2014 see below>"
}
raw (3660 chars)
*** Begin Patch
*** Update File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@
-        if self.K == 768:
-            block_e = 64
+        if self.K == 768:
+            use_patch_major = True
+            block_m = 32
+            block_n = 64
+            block_k = 128
+            warps = 4
+        elif self.total_patches <= 256:
+            use_patch_major = True
+            block_m = 16
+            block_n = 64
+            block_k = 64
+            warps = 8
+        elif self.total_patches <= 1024:
+            use_patch_major = False
+            block_e = 128
             block_m = 32
-            block_k = 128
+            block_k = 64
             warps = 4
-        elif self.total_patches <= 256:
-            block_e = 64
-            block_m = 16
-            block_k = 64
-            warps = 8
-        elif self.total_patches <= 1024:
+        else:
+            use_patch_major = False
             block_e = 128
-            block_m = 32
+            block_m = 64
             block_k = 64
-            warps = 8
-        else:
-            block_e = 64
-            block_m = 64
-            block_k = 64
             warps = 4
 
-        grid = (triton.cdiv(self.embed_dim, block_e), triton.cdiv(self.total_patches, block_m))
-        _patch_embed_kernel_em[grid](
-            x,
-            self.conv.weight,
-            y,
-            self.total_patches,
-            self.patches_per_batch,
-            self.C,
-            self.T,
-            self.H,
-            self.W,
-            self.kT,
-            self.kH,
-            self.kW,
-            self.To,
-            self.Ho,
-            self.Wo,
-            self.embed_dim,
-            self.K,
-            BLOCK_E=block_e,
-            BLOCK_M=block_m,
-            BLOCK_K=block_k,
-            num_warps=warps,
-            num_stages=3,
-        )
+        if use_patch_major:
+            grid = (
+                triton.cdiv(self.total_patches, block_m),
+                triton.cdiv(self.embed_dim, block_n),
+            )
+            _patch_embed_kernel[grid](
+                x,
+                self.conv.weight,
+                y,
+                self.total_patches,
+                self.patches_per_batch,
+                self.C,
+                self.T,
+                self.H,
+                self.W,
+                self.kT,
+                self.kH,
+                self.kW,
+                self.To,
+                self.Ho,
+                self.Wo,
+                self.embed_dim,
+                self.K,
+                BLOCK_M=block_m,
+                BLOCK_N=block_n,
+                BLOCK_K=block_k,
+                num_warps=warps,
+                num_stages=3,
+            )
+        else:
+            grid = (
+                triton.cdiv(self.embed_dim, block_e),
+                triton.cdiv(self.total_patches, block_m),
+            )
+            _patch_embed_kernel_em[grid](
+                x,
+                self.conv.weight,
+                y,
+                self.total_patches,
+                self.patches_per_batch,
+                self.C,
+                self.T,
+                self.H,
+                self.W,
+                self.kT,
+                self.kH,
+                self.kW,
+                self.To,
+                self.Ho,
+                self.Wo,
+                self.embed_dim,
+                self.K,
+                BLOCK_E=block_e,
+                BLOCK_M=block_m,
+                BLOCK_K=block_k,
+                num_warps=warps,
+                num_stages=3,
+            )
         return y
*** End Patch
tool
stdout (186 chars)
output:
  Success. Updated the following files:
  M /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
exec_command
args
{
  "cmd": "uv run python check.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (113 chars)
Chunk ID: 9a0bbe
Wall time: 1.0009 seconds
Process running with session ID 91126
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 91126,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (107 chars)
Chunk ID: 421925
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 2
Output:
PASS
assistant
exec_command
args
{
  "cmd": "uv run python benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (113 chars)
Chunk ID: e7cbce
Wall time: 1.0010 seconds
Process running with session ID 57430
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 57430,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (1220 chars)
Chunk ID: f10fae
Wall time: 0.9641 seconds
Process exited with code 0
Original token count: 279
Output:
shape=0 variant=eager tflops=3.693 gbps=20.453 ms=0.209
shape=0 variant=compiled tflops=3.192 gbps=17.679 ms=0.241
shape=0 variant=sota tflops=3.731 gbps=20.661 ms=0.207
shape=0 variant=solution tflops=23.192 gbps=128.431 ms=0.033
shape=0 solution_peak_fraction=0.1160
shape=1 variant=eager tflops=13.966 gbps=36.426 ms=0.221
shape=1 variant=compiled tflops=12.018 gbps=31.345 ms=0.257
shape=1 variant=sota tflops=14.119 gbps=36.823 ms=0.218
shape=1 variant=solution tflops=70.422 gbps=183.673 ms=0.044
shape=1 solution_peak_fraction=0.3521
shape=2 variant=eager tflops=26.215 gbps=54.151 ms=0.265
shape=2 variant=compiled tflops=23.023 gbps=47.556 ms=0.301
shape=2 variant=sota tflops=26.858 gbps=55.479 ms=0.258
shape=2 variant=solution tflops=126.723 gbps=261.762 ms=0.055
shape=2 solution_peak_fraction=0.6336
shape=3 variant=eager tflops=6.460 gbps=25.062 ms=0.143
shape=3 variant=compiled tflops=5.199 gbps=20.172 ms=0.178
shape=3 variant=sota tflops=6.619 gbps=25.679 ms=0.140
shape=3 variant=solution tflops=40.966 gbps=158.934 ms=0.023
shape=3 solution_peak_fraction=0.2048
peak_fraction: 0.2698
RESULT: OK
assistant
The per-shape selection lifted the largest case to about 127 TFLOPS and the geometric mean to 0.27 of peak. I’m checking one more neighborhood around the two larger tile shapes because those still have enough arithmetic to benefit from better tensor-core occupancy.
assistant
exec_command
args
{
  "cmd": "uv run python -c \"import torch; print(torch.cuda.get_device_capability())\"",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 4000
}
tool
stdout (110 chars)
Chunk ID: 690133
Wall time: 0.8222 seconds
Process exited with code 0
Original token count: 2
Output:
(12, 0)
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_big.py
diff (110 lines)
--- /dev/null
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_big.py
@@ -0,0 +1,107 @@
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+import torch
+
+REPO_ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(REPO_ROOT))
+
+from src.eval.timing import time_fn  # noqa: E402
+
+import reference  # noqa: E402
+import shapes  # noqa: E402
+import solution  # noqa: E402
+
+
+CONFIGS = [
+    (64, 128, 32, 4, 3),
+    (64, 128, 64, 4, 3),
+    (64, 128, 128, 4, 3),
+    (128, 32, 32, 4, 3),
+    (128, 32, 64, 4, 3),
+    (128, 32, 128, 4, 3),
+    (128, 64, 32, 4, 3),
+    (128, 64, 64, 4, 3),
+    (128, 64, 128, 4, 3),
+    (128, 128, 32, 4, 3),
+    (128, 128, 64, 4, 3),
+    (256, 16, 64, 4, 3),
+    (256, 32, 32, 4, 3),
+    (256, 32, 64, 4, 3),
+    (256, 64, 32, 4, 3),
+    (256, 64, 64, 4, 3),
+]
+
+
+def run_em(model: solution.Model, x: torch.Tensor, cfg: tuple[int, int, int, int, int]):
+    block_e, block_m, block_k, warps, stages = cfg
+
+    def fn(inp: torch.Tensor):
+        y = torch.empty(
+            (model.B, model.embed_dim, model.To, model.Ho, model.Wo),
+            device=inp.device,
+            dtype=inp.dtype,
+        )
+        grid = (
+            solution.triton.cdiv(model.embed_dim, block_e),
+            solution.triton.cdiv(model.total_patches, block_m),
+        )
+        solution._patch_embed_kernel_em[grid](
+            inp,
+            model.conv.weight,
+            y,
+            model.total_patches,
+            model.patches_per_batch,
+            model.C,
+            model.T,
+            model.H,
+            model.W,
+            model.kT,
+            model.kH,
+            model.kW,
+            model.To,
+            model.Ho,
+            model.Wo,
+            model.embed_dim,
+            model.K,
+            BLOCK_E=block_e,
+            BLOCK_M=block_m,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=stages,
+        )
+        return y
+
+    return time_fn(fn, [x], iters=16, warmup=6)
+
+
+def main() -> None:
+    device = torch.device("cuda:0")
+    for shape_idx in (1, 2):
+        shape = shapes.SHAPES[shape_idx]
+        for k, v in shape.items():
+            setattr(reference, k, v)
+        init_args = reference.get_init_inputs()
+        ref = reference.Model(*init_args).to(device).eval()
+        model = solution.Model(*init_args).to(device).eval()
+        model.load_state_dict(ref.state_dict(), strict=True)
+        torch.manual_seed(2026)
+        x = reference.get_inputs()[0].to(device)
+        print(f"shape={shape_idx} {shape}")
+        best = None
+        for cfg in CONFIGS:
+            try:
+                ms = run_em(model, x, cfg)
+            except Exception as exc:  # noqa: BLE001
+                print(f"  cfg={cfg} error={type(exc).__name__}: {exc}")
+                continue
+            if best is None or ms < best[0]:
+                best = (ms, cfg)
+            print(f"  cfg={cfg} ms={ms:.4f}")
+        print(f"best shape={shape_idx} cfg={best[1]} ms={best[0]:.4f}")
+
+
+if __name__ == "__main__":
+    main()
args
{
  "raw": "<3177 chars \u2014 see below>"
}
raw (3177 chars)
*** Begin Patch
*** Add File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_big.py
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+import torch
+
+REPO_ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(REPO_ROOT))
+
+from src.eval.timing import time_fn  # noqa: E402
+
+import reference  # noqa: E402
+import shapes  # noqa: E402
+import solution  # noqa: E402
+
+
+CONFIGS = [
+    (64, 128, 32, 4, 3),
+    (64, 128, 64, 4, 3),
+    (64, 128, 128, 4, 3),
+    (128, 32, 32, 4, 3),
+    (128, 32, 64, 4, 3),
+    (128, 32, 128, 4, 3),
+    (128, 64, 32, 4, 3),
+    (128, 64, 64, 4, 3),
+    (128, 64, 128, 4, 3),
+    (128, 128, 32, 4, 3),
+    (128, 128, 64, 4, 3),
+    (256, 16, 64, 4, 3),
+    (256, 32, 32, 4, 3),
+    (256, 32, 64, 4, 3),
+    (256, 64, 32, 4, 3),
+    (256, 64, 64, 4, 3),
+]
+
+
+def run_em(model: solution.Model, x: torch.Tensor, cfg: tuple[int, int, int, int, int]):
+    block_e, block_m, block_k, warps, stages = cfg
+
+    def fn(inp: torch.Tensor):
+        y = torch.empty(
+            (model.B, model.embed_dim, model.To, model.Ho, model.Wo),
+            device=inp.device,
+            dtype=inp.dtype,
+        )
+        grid = (
+            solution.triton.cdiv(model.embed_dim, block_e),
+            solution.triton.cdiv(model.total_patches, block_m),
+        )
+        solution._patch_embed_kernel_em[grid](
+            inp,
+            model.conv.weight,
+            y,
+            model.total_patches,
+            model.patches_per_batch,
+            model.C,
+            model.T,
+            model.H,
+            model.W,
+            model.kT,
+            model.kH,
+            model.kW,
+            model.To,
+            model.Ho,
+            model.Wo,
+            model.embed_dim,
+            model.K,
+            BLOCK_E=block_e,
+            BLOCK_M=block_m,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=stages,
+        )
+        return y
+
+    return time_fn(fn, [x], iters=16, warmup=6)
+
+
+def main() -> None:
+    device = torch.device("cuda:0")
+    for shape_idx in (1, 2):
+        shape = shapes.SHAPES[shape_idx]
+        for k, v in shape.items():
+            setattr(reference, k, v)
+        init_args = reference.get_init_inputs()
+        ref = reference.Model(*init_args).to(device).eval()
+        model = solution.Model(*init_args).to(device).eval()
+        model.load_state_dict(ref.state_dict(), strict=True)
+        torch.manual_seed(2026)
+        x = reference.get_inputs()[0].to(device)
+        print(f"shape={shape_idx} {shape}")
+        best = None
+        for cfg in CONFIGS:
+            try:
+                ms = run_em(model, x, cfg)
+            except Exception as exc:  # noqa: BLE001
+                print(f"  cfg={cfg} error={type(exc).__name__}: {exc}")
+                continue
+            if best is None or ms < best[0]:
+                best = (ms, cfg)
+            print(f"  cfg={cfg} ms={ms:.4f}")
+        print(f"best shape={shape_idx} cfg={best[1]} ms={best[0]:.4f}")
+
+
+if __name__ == "__main__":
+    main()
*** End Patch
tool
stdout (186 chars)
output:
  Success. Updated the following files:
  A /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_big.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
exec_command
args
{
  "cmd": "uv run python tune_big.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 16000
}
tool
stdout (113 chars)
Chunk ID: e912b7
Wall time: 1.0011 seconds
Process running with session ID 10808
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 10808,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 16000
}
tool
stdout (113 chars)
Chunk ID: c80482
Wall time: 5.0011 seconds
Process running with session ID 10808
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 10808,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 16000
}
tool
stdout (1562 chars) — TRUNCATED
Chunk ID: 48a3d9
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 365
Output:
shape=1 {'B': 2, 'C': 3, 'T': 4, 'H': 224, 'W': 224, 'kT': 2, 'kH': 14, 'kW': 14, 'embed_dim': 1280}
  cfg=(64, 128, 32, 4, 3) ms=0.0581
  cfg=(64, 128, 64, 4, 3) ms=0.0664
  cfg=(64, 128, 128, 4, 3) ms=0.0613
  cfg=(128, 32, 32, 4, 3) ms=0.0534
  cfg=(128, 32, 64, 4, 3) ms=0.0411
  cfg=(128, 32, 128, 4, 3) ms=0.0523
  cfg=(128, 64, 32, 4, 3) ms=0.0509
  cfg=(128, 64, 64, 4, 3) ms=0.0408
  cfg=(128, 64, 128, 4, 3) ms=0.0448
  cfg=(128, 128, 32, 4, 3) ms=0.0572
  cfg=(128, 128, 64, 4, 3) ms=0.0839
  cfg=(256, 16, 64, 4, 3) ms=0.0700
  cfg=(256, 32, 32, 4, 3) ms=0.0663
  cfg=(256, 32, 64, 4, 3) ms=0.0516
  cfg=(256, 64, 32, 4, 3) ms=0.0562
  cfg=(256, 64, 64, 4, 3) ms=0.0630
best shape=1 cfg=(128, 64, 64, 4, 3) ms=0.0408
shape=2 {'B': 1, 'C': 3, 'T': 8, 'H': 336, 'W': 336, 'kT': 2, 'kH': 14, 'kW': 14, 'embed_dim': 1280}
  cfg=(64, 128, 32, 4, 3) ms=0.0744
  cfg=(64, 128, 64, 4, 3) ms=0.0733
  cfg=(64, 128, 128, 4, 3) ms=0.2989
  cfg=(128, 32, 32, 4, 3) ms=0.0797
  cfg=(128, 32, 64, 4, 3) ms=0.0713
  cfg=(128, 32, 128, 4, 3) ms=0.0981
  cfg=(128, 64, 32, 4, 3) ms=0.0617
  cfg=(128, 64, 64, 4, 3) ms=0.0541
  cfg=(128, 64, 128, 4, 3) ms=0.0852
  cfg=(128, 128, 32, 4, 3) ms=0.0709
  cfg=(128, 128, 64, 4, 3) ms=0.0885
  cfg=(256, 16, 64, 4, 3) ms=0.1250
  cfg=(256, 32, 32, 4, 3) ms=0.0768
  cfg=(256, 32, 64, 4, 3) ms=0.0816
  cfg=(256, 64, 32, 4, 3) ms=0.0686
  cfg=(256, 64, 64, 4

... (62 more chars)
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
diff (87 lines)
--- a//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@ -1,84 +1,6 @@
-        if self.K == 768:
-            use_patch_major = True
-            block_m = 32
-            block_n = 64
-            block_k = 128
-            warps = 4
-        elif self.total_patches <= 256:
-            use_patch_major = True
-            block_m = 16
-            block_n = 64
-            block_k = 64
-            warps = 8
         elif self.total_patches <= 1024:
-            use_patch_major = False
-            block_e = 128
-            block_m = 32
-            block_k = 64
-            warps = 4
-        else:
             use_patch_major = False
             block_e = 128
             block_m = 64
             block_k = 64
             warps = 4
-
-        if use_patch_major:
-            grid = (
-                triton.cdiv(self.total_patches, block_m),
-                triton.cdiv(self.embed_dim, block_n),
-            )
-            _patch_embed_kernel[grid](
-                x,
-                self.conv.weight,
-                y,
-                self.total_patches,
-                self.patches_per_batch,
-                self.C,
-                self.T,
-                self.H,
-                self.W,
-                self.kT,
-                self.kH,
-                self.kW,
-                self.To,
-                self.Ho,
-                self.Wo,
-                self.embed_dim,
-                self.K,
-                BLOCK_M=block_m,
-                BLOCK_N=block_n,
-                BLOCK_K=block_k,
-                num_warps=warps,
-                num_stages=3,
-            )
-        else:
-            grid = (
-                triton.cdiv(self.embed_dim, block_e),
-                triton.cdiv(self.total_patches, block_m),
-            )
-            _patch_embed_kernel_em[grid](
-                x,
-                self.conv.weight,
-                y,
-                self.total_patches,
-                self.patches_per_batch,
-                self.C,
-                self.T,
-                self.H,
-                self.W,
-                self.kT,
-                self.kH,
-                self.kW,
-                self.To,
-                self.Ho,
-                self.Wo,
-                self.embed_dim,
-                self.K,
-                BLOCK_E=block_e,
-                BLOCK_M=block_m,
-                BLOCK_K=block_k,
-                num_warps=warps,
-                num_stages=3,
-            )
-        return y
args
{
  "raw": "<343 chars \u2014 see below>"
}
raw (343 chars)
*** Begin Patch
*** Update File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@
         elif self.total_patches <= 1024:
             use_patch_major = False
             block_e = 128
-            block_m = 32
+            block_m = 64
             block_k = 64
             warps = 4
*** End Patch
tool
stdout (186 chars)
output:
  Success. Updated the following files:
  M /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
There is another likely bottleneck: the parameter is stored as `(embed, K)`, so patch-major tiles read weights with a large stride across the embed columns. I’m adding a one-time custom transpose into `(K, embed)` and a matching Triton tile path; benchmark warmup will absorb the packing cost while timed calls use the packed weights.
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
diff (204 lines — TRUNCATED)
--- a//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@ -1,6 +1,199 @@
-        elif self.total_patches <= 1024:
-            use_patch_major = False
+import triton
+import triton.language as tl
+
+
+@triton.jit
+def _pack_weight_kernel(
+    weight,
+    weight_t,
+    total: tl.constexpr,
+    embed_dim: tl.constexpr,
+    K: tl.constexpr,
+    BLOCK: tl.constexpr,
+):
+    offs = tl.program_id(0) * BLOCK + tl.arange(0, BLOCK)
+    k = offs // embed_dim
+    e = offs - k * embed_dim
+    vals = tl.load(weight + e * K + k, mask=offs < total, other=0.0)
+    tl.store(weight_t + offs, vals, mask=offs < total)
+
+
+@triton.jit
+def _patch_embed_kernel(
+    )
+
+
+@triton.jit
+def _patch_embed_kernel_wt(
+    x,
+    weight_t,
+    y,
+    total_patches: tl.constexpr,
+    patches_per_batch: tl.constexpr,
+    C: tl.constexpr,
+    T: tl.constexpr,
+    H: tl.constexpr,
+    W: tl.constexpr,
+    kT: tl.constexpr,
+    kH: tl.constexpr,
+    kW: tl.constexpr,
+    To: tl.constexpr,
+    Ho: tl.constexpr,
+    Wo: tl.constexpr,
+    embed_dim: tl.constexpr,
+    K: tl.constexpr,
+    BLOCK_M: tl.constexpr,
+    BLOCK_N: tl.constexpr,
+    BLOCK_K: tl.constexpr,
+):
+    pid_m = tl.program_id(0)
+    pid_n = tl.program_id(1)
+
+    offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)
+    offs_n = pid_n * BLOCK_N + tl.arange(0, BLOCK_N)
+
+    b = offs_m // patches_per_batch
+    local_m = offs_m - b * patches_per_batch
+    ot = local_m // (Ho * Wo)
+    rem = local_m - ot * (Ho * Wo)
+    oh = rem // Wo
+    ow = rem - oh * Wo
+
+    acc = tl.zeros((BLOCK_M, BLOCK_N), tl.float32)
+
+    for k0 in range(0, K, BLOCK_K):
+        offs_k = k0 + tl.arange(0, BLOCK_K)
+        c = offs_k // (kT * kH * kW)
+        kr = offs_k - c * (kT * kH * kW)
+        kt = kr // (kH * kW)
+        kr = kr - kt * (kH * kW)
+        kh = kr // kW
+        kw = kr - kh * kW
+
+        x_t = ot[:, None] * kT + kt[None, :]
+        x_h = oh[:, None] * kH + kh[None, :]
+        x_w = ow[:, None] * kW + kw[None, :]
+        x_offsets = ((((b[:, None] * C + c[None, :]) * T + x_t) * H + x_h) * W + x_w)
+        wt_offsets = offs_k[:, None] * embed_dim + offs_n[None, :]
+
+        a = tl.load(
+            x + x_offsets,
+            mask=(offs_m[:, None] < total_patches) & (offs_k[None, :] < K),
+            other=0.0,
+        )
+        wv = tl.load(
+            weight_t + wt_offsets,
+            mask=(offs_k[:, None] < K) & (offs_n[None, :] < embed_dim),
+            other=0.0,
+        )
+        acc += tl.dot(a, wv)
+
+    y_offsets = (
+        b[:, None] * (embed_dim * patches_per_batch)
+        + offs_n[None, :] * patches_per_batch
+        + local_m[:, None]
+    )
+    tl.store(
+        y + y_offsets,
+        acc,
+        mask=(offs_m[:, None] < total_patches) & (offs_n[None, :] < embed_dim),
+    )
+
+
+@triton.jit
+def _patch_embed_kernel_em(
+        self.conv = _WeightOnly(C, kT, kH, kW, embed_dim)
+        nn.init.normal_(self.conv.weight, std=0.02)
+        self._weight_t = None
+        self._weight_t_version = -1
+
+    def _packed_weight(self) -> torch.Tensor:
+        version = self.conv.weight._version
+        if (
+            self._weight_t is None
+            or self._weight_t.device != self.conv.weight.device
+            or self._weight_t_version != version
+        ):
+            weight_t = torch.empty(
+                (self.K, self.embed_dim),
+                device=self.conv.weight.device,
+                dtype=self.conv.weight.dtype,
+            )
+            block = 1024
+            grid = (triton.cdiv(self.K * self.embed_dim, block),)
+            _pack_weight_kernel[grid](
+                self.conv.weight,
+                weight_t,
+                self.K * self.embed_dim,
+                self.embed_dim,
+                self.K,
+                BLOCK=block,
+                num_warps=4,
+            )
+            self._weight_t = weight_t
+            self._weight_t_version = version
+        return self._weight_t
+        if self.K == 768:
+            use_patch_major = 2
+            block_m = 32
+            block_n = 64
+            block_k = 128
+            warps = 4
+        elif self.total_patches <= 256:
+            use_patch_major = 2
+            block_m = 16
+            block_n = 64
+            block_k = 64
+            warps = 8
+            use_patch_major = 0
             block_e = 128
             block_m = 64
             block_k = 64
             warps = 4
+        else:
+            use_patch_major = 0
+            block_e = 128
+            block_m = 64
+            block_k = 64
+            warps = 4
+
+        if use_patch_major == 1:
+            grid = (
+                triton.cdiv(self.total_patches, block_m),
+                triton.cdiv(self.embed_dim, block_n),
+                num_warps=warps,
+                num_stages=3,
+            )
+        elif use_patch_major == 2:
+            weight_t = self._packed_weight()
+            grid = (
+                triton.cdiv(self.total_patches, block_m),
+                triton.cdiv(self.embed_dim, block_n),
+            )
+            _patch_embed_kernel_wt[grid](
+                x,
+                weight_t,
+                y,
+                self.total_patches,
+                self.patches_per_batch,
+                self.C,
+                self.T,
+                self.H,
+                self.W,
+                self.kT,
+                self.kH,
+                self.kW,
+                self.To,
+                self.Ho,
+                self.Wo,
+                self.embed_dim,
+                self.K,
+                BLOCK_M=block_m,
+                BLOCK_N=block_n,
+                BLOCK_K=block_k,
+                num_warps=warps,
+                num_stages=3,
+            )
+        else:
+            grid = (
+                triton.cdiv(self.

... (21 more chars)
args
{
  "raw": "<6066 chars \u2014 see below>"
}
raw (6066 chars — TRUNCATED)
*** Begin Patch
*** Update File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@
 import triton
 import triton.language as tl
 
 
+@triton.jit
+def _pack_weight_kernel(
+    weight,
+    weight_t,
+    total: tl.constexpr,
+    embed_dim: tl.constexpr,
+    K: tl.constexpr,
+    BLOCK: tl.constexpr,
+):
+    offs = tl.program_id(0) * BLOCK + tl.arange(0, BLOCK)
+    k = offs // embed_dim
+    e = offs - k * embed_dim
+    vals = tl.load(weight + e * K + k, mask=offs < total, other=0.0)
+    tl.store(weight_t + offs, vals, mask=offs < total)
+
+
 @triton.jit
 def _patch_embed_kernel(
@@
     )
 
 
+@triton.jit
+def _patch_embed_kernel_wt(
+    x,
+    weight_t,
+    y,
+    total_patches: tl.constexpr,
+    patches_per_batch: tl.constexpr,
+    C: tl.constexpr,
+    T: tl.constexpr,
+    H: tl.constexpr,
+    W: tl.constexpr,
+    kT: tl.constexpr,
+    kH: tl.constexpr,
+    kW: tl.constexpr,
+    To: tl.constexpr,
+    Ho: tl.constexpr,
+    Wo: tl.constexpr,
+    embed_dim: tl.constexpr,
+    K: tl.constexpr,
+    BLOCK_M: tl.constexpr,
+    BLOCK_N: tl.constexpr,
+    BLOCK_K: tl.constexpr,
+):
+    pid_m = tl.program_id(0)
+    pid_n = tl.program_id(1)
+
+    offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)
+    offs_n = pid_n * BLOCK_N + tl.arange(0, BLOCK_N)
+
+    b = offs_m // patches_per_batch
+    local_m = offs_m - b * patches_per_batch
+    ot = local_m // (Ho * Wo)
+    rem = local_m - ot * (Ho * Wo)
+    oh = rem // Wo
+    ow = rem - oh * Wo
+
+    acc = tl.zeros((BLOCK_M, BLOCK_N), tl.float32)
+
+    for k0 in range(0, K, BLOCK_K):
+        offs_k = k0 + tl.arange(0, BLOCK_K)
+        c = offs_k // (kT * kH * kW)
+        kr = offs_k - c * (kT * kH * kW)
+        kt = kr // (kH * kW)
+        kr = kr - kt * (kH * kW)
+        kh = kr // kW
+        kw = kr - kh * kW
+
+        x_t = ot[:, None] * kT + kt[None, :]
+        x_h = oh[:, None] * kH + kh[None, :]
+        x_w = ow[:, None] * kW + kw[None, :]
+        x_offsets = ((((b[:, None] * C + c[None, :]) * T + x_t) * H + x_h) * W + x_w)
+        wt_offsets = offs_k[:, None] * embed_dim + offs_n[None, :]
+
+        a = tl.load(
+            x + x_offsets,
+            mask=(offs_m[:, None] < total_patches) & (offs_k[None, :] < K),
+            other=0.0,
+        )
+        wv = tl.load(
+            weight_t + wt_offsets,
+            mask=(offs_k[:, None] < K) & (offs_n[None, :] < embed_dim),
+            other=0.0,
+        )
+        acc += tl.dot(a, wv)
+
+    y_offsets = (
+        b[:, None] * (embed_dim * patches_per_batch)
+        + offs_n[None, :] * patches_per_batch
+        + local_m[:, None]
+    )
+    tl.store(
+        y + y_offsets,
+        acc,
+        mask=(offs_m[:, None] < total_patches) & (offs_n[None, :] < embed_dim),
+    )
+
+
 @triton.jit
 def _patch_embed_kernel_em(
@@
         self.conv = _WeightOnly(C, kT, kH, kW, embed_dim)
         nn.init.normal_(self.conv.weight, std=0.02)
+        self._weight_t = None
+        self._weight_t_version = -1
+
+    def _packed_weight(self) -> torch.Tensor:
+        version = self.conv.weight._version
+        if (
+            self._weight_t is None
+            or self._weight_t.device != self.conv.weight.device
+            or self._weight_t_version != version
+        ):
+            weight_t = torch.empty(
+                (self.K, self.embed_dim),
+                device=self.conv.weight.device,
+                dtype=self.conv.weight.dtype,
+            )
+            block = 1024
+            grid = (triton.cdiv(self.K * self.embed_dim, block),)
+            _pack_weight_kernel[grid](
+                self.conv.weight,
+                weight_t,
+                self.K * self.embed_dim,
+                self.embed_dim,
+                self.K,
+                BLOCK=block,
+                num_warps=4,
+            )
+            self._weight_t = weight_t
+            self._weight_t_version = version
+        return self._weight_t
@@
         if 

... (2066 more chars)
tool
stdout (186 chars)
output:
  Success. Updated the following files:
  M /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
exec_command
args
{
  "cmd": "uv run python check.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (113 chars)
Chunk ID: b32518
Wall time: 1.0004 seconds
Process running with session ID 58354
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 58354,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (107 chars)
Chunk ID: fc1152
Wall time: 0.0309 seconds
Process exited with code 0
Original token count: 2
Output:
PASS
assistant
exec_command
args
{
  "cmd": "uv run python benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (113 chars)
Chunk ID: d9a778
Wall time: 1.0009 seconds
Process running with session ID 90905
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 90905,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (1220 chars)
Chunk ID: e8233e
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 279
Output:
shape=0 variant=eager tflops=3.676 gbps=20.358 ms=0.210
shape=0 variant=compiled tflops=3.175 gbps=17.582 ms=0.243
shape=0 variant=sota tflops=3.729 gbps=20.648 ms=0.207
shape=0 variant=solution tflops=22.851 gbps=126.543 ms=0.034
shape=0 solution_peak_fraction=0.1143
shape=1 variant=eager tflops=13.970 gbps=36.436 ms=0.221
shape=1 variant=compiled tflops=12.048 gbps=31.424 ms=0.256
shape=1 variant=sota tflops=14.128 gbps=36.848 ms=0.218
shape=1 variant=solution tflops=72.272 gbps=188.495 ms=0.043
shape=1 solution_peak_fraction=0.3614
shape=2 variant=eager tflops=26.327 gbps=54.381 ms=0.263
shape=2 variant=compiled tflops=22.800 gbps=47.096 ms=0.304
shape=2 variant=sota tflops=26.693 gbps=55.137 ms=0.260
shape=2 variant=solution tflops=122.880 gbps=253.823 ms=0.056
shape=2 solution_peak_fraction=0.6144
shape=3 variant=eager tflops=6.479 gbps=25.138 ms=0.143
shape=3 variant=compiled tflops=5.215 gbps=20.234 ms=0.177
shape=3 variant=sota tflops=6.588 gbps=25.559 ms=0.140
shape=3 variant=solution tflops=38.154 gbps=148.024 ms=0.024
shape=3 solution_peak_fraction=0.1908
peak_fraction: 0.2637
RESULT: OK
assistant
The packed-weight path is correct, but with the initial small-shape settings it did not pay off in the full benchmark. I’ll tune that path directly; if it does not beat the existing orientations I’ll leave it out of the hot path.
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_wt.py
diff (116 lines)
--- /dev/null
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_wt.py
@@ -0,0 +1,113 @@
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+import torch
+
+REPO_ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(REPO_ROOT))
+
+from src.eval.timing import time_fn  # noqa: E402
+
+import reference  # noqa: E402
+import shapes  # noqa: E402
+import solution  # noqa: E402
+
+
+CONFIGS = [
+    (8, 64, 64, 4, 3),
+    (16, 32, 64, 4, 3),
+    (16, 64, 32, 4, 3),
+    (16, 64, 64, 4, 3),
+    (16, 64, 64, 8, 3),
+    (16, 64, 128, 4, 3),
+    (16, 128, 64, 4, 3),
+    (32, 32, 64, 4, 3),
+    (32, 64, 32, 4, 3),
+    (32, 64, 64, 4, 3),
+    (32, 64, 64, 8, 3),
+    (32, 64, 128, 4, 3),
+    (32, 128, 64, 4, 3),
+    (64, 64, 64, 4, 3),
+    (64, 128, 32, 4, 3),
+    (64, 128, 64, 4, 3),
+]
+
+
+def run_wt(
+    model: solution.Model,
+    weight_t: torch.Tensor,
+    x: torch.Tensor,
+    cfg: tuple[int, int, int, int, int],
+):
+    block_m, block_n, block_k, warps, stages = cfg
+
+    def fn(inp: torch.Tensor):
+        y = torch.empty(
+            (model.B, model.embed_dim, model.To, model.Ho, model.Wo),
+            device=inp.device,
+            dtype=inp.dtype,
+        )
+        grid = (
+            solution.triton.cdiv(model.total_patches, block_m),
+            solution.triton.cdiv(model.embed_dim, block_n),
+        )
+        solution._patch_embed_kernel_wt[grid](
+            inp,
+            weight_t,
+            y,
+            model.total_patches,
+            model.patches_per_batch,
+            model.C,
+            model.T,
+            model.H,
+            model.W,
+            model.kT,
+            model.kH,
+            model.kW,
+            model.To,
+            model.Ho,
+            model.Wo,
+            model.embed_dim,
+            model.K,
+            BLOCK_M=block_m,
+            BLOCK_N=block_n,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=stages,
+        )
+        return y
+
+    return time_fn(fn, [x], iters=14, warmup=5)
+
+
+def main() -> None:
+    device = torch.device("cuda:0")
+    for shape_idx, shape in enumerate(shapes.SHAPES):
+        for k, v in shape.items():
+            setattr(reference, k, v)
+        init_args = reference.get_init_inputs()
+        ref = reference.Model(*init_args).to(device).eval()
+        model = solution.Model(*init_args).to(device).eval()
+        model.load_state_dict(ref.state_dict(), strict=True)
+        weight_t = model._packed_weight()
+        torch.cuda.synchronize()
+        torch.manual_seed(2026)
+        x = reference.get_inputs()[0].to(device)
+        print(f"shape={shape_idx} {shape}")
+        best = None
+        for cfg in CONFIGS:
+            try:
+                ms = run_wt(model, weight_t, x, cfg)
+            except Exception as exc:  # noqa: BLE001
+                print(f"  cfg={cfg} error={type(exc).__name__}: {exc}")
+                continue
+            if best is None or ms < best[0]:
+                best = (ms, cfg)
+            print(f"  cfg={cfg} ms={ms:.4f}")
+        print(f"best shape={shape_idx} cfg={best[1]} ms={best[0]:.4f}")
+
+
+if __name__ == "__main__":
+    main()
args
{
  "raw": "<3269 chars \u2014 see below>"
}
raw (3269 chars)
*** Begin Patch
*** Add File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_wt.py
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+import torch
+
+REPO_ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(REPO_ROOT))
+
+from src.eval.timing import time_fn  # noqa: E402
+
+import reference  # noqa: E402
+import shapes  # noqa: E402
+import solution  # noqa: E402
+
+
+CONFIGS = [
+    (8, 64, 64, 4, 3),
+    (16, 32, 64, 4, 3),
+    (16, 64, 32, 4, 3),
+    (16, 64, 64, 4, 3),
+    (16, 64, 64, 8, 3),
+    (16, 64, 128, 4, 3),
+    (16, 128, 64, 4, 3),
+    (32, 32, 64, 4, 3),
+    (32, 64, 32, 4, 3),
+    (32, 64, 64, 4, 3),
+    (32, 64, 64, 8, 3),
+    (32, 64, 128, 4, 3),
+    (32, 128, 64, 4, 3),
+    (64, 64, 64, 4, 3),
+    (64, 128, 32, 4, 3),
+    (64, 128, 64, 4, 3),
+]
+
+
+def run_wt(
+    model: solution.Model,
+    weight_t: torch.Tensor,
+    x: torch.Tensor,
+    cfg: tuple[int, int, int, int, int],
+):
+    block_m, block_n, block_k, warps, stages = cfg
+
+    def fn(inp: torch.Tensor):
+        y = torch.empty(
+            (model.B, model.embed_dim, model.To, model.Ho, model.Wo),
+            device=inp.device,
+            dtype=inp.dtype,
+        )
+        grid = (
+            solution.triton.cdiv(model.total_patches, block_m),
+            solution.triton.cdiv(model.embed_dim, block_n),
+        )
+        solution._patch_embed_kernel_wt[grid](
+            inp,
+            weight_t,
+            y,
+            model.total_patches,
+            model.patches_per_batch,
+            model.C,
+            model.T,
+            model.H,
+            model.W,
+            model.kT,
+            model.kH,
+            model.kW,
+            model.To,
+            model.Ho,
+            model.Wo,
+            model.embed_dim,
+            model.K,
+            BLOCK_M=block_m,
+            BLOCK_N=block_n,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=stages,
+        )
+        return y
+
+    return time_fn(fn, [x], iters=14, warmup=5)
+
+
+def main() -> None:
+    device = torch.device("cuda:0")
+    for shape_idx, shape in enumerate(shapes.SHAPES):
+        for k, v in shape.items():
+            setattr(reference, k, v)
+        init_args = reference.get_init_inputs()
+        ref = reference.Model(*init_args).to(device).eval()
+        model = solution.Model(*init_args).to(device).eval()
+        model.load_state_dict(ref.state_dict(), strict=True)
+        weight_t = model._packed_weight()
+        torch.cuda.synchronize()
+        torch.manual_seed(2026)
+        x = reference.get_inputs()[0].to(device)
+        print(f"shape={shape_idx} {shape}")
+        best = None
+        for cfg in CONFIGS:
+            try:
+                ms = run_wt(model, weight_t, x, cfg)
+            except Exception as exc:  # noqa: BLE001
+                print(f"  cfg={cfg} error={type(exc).__name__}: {exc}")
+                continue
+            if best is None or ms < best[0]:
+                best = (ms, cfg)
+            print(f"  cfg={cfg} ms={ms:.4f}")
+        print(f"best shape={shape_idx} cfg={best[1]} ms={best[0]:.4f}")
+
+
+if __name__ == "__main__":
+    main()
*** End Patch
tool
stdout (185 chars)
output:
  Success. Updated the following files:
  A /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_wt.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
exec_command
args
{
  "cmd": "uv run python tune_wt.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 20000
}
tool
stdout (113 chars)
Chunk ID: ef699e
Wall time: 1.0010 seconds
Process running with session ID 89982
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 89982,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 20000
}
tool
stdout (113 chars)
Chunk ID: 48de60
Wall time: 5.0010 seconds
Process running with session ID 89982
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 89982,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 20000
}
tool
stdout (2965 chars) — TRUNCATED
Chunk ID: d7cf75
Wall time: 5.0013 seconds
Process running with session ID 89982
Original token count: 713
Output:
shape=0 {'B': 1, 'C': 3, 'T': 2, 'H': 224, 'W': 224, 'kT': 2, 'kH': 14, 'kW': 14, 'embed_dim': 1280}
  cfg=(8, 64, 64, 4, 3) ms=0.0331
  cfg=(16, 32, 64, 4, 3) ms=0.0361
  cfg=(16, 64, 32, 4, 3) ms=0.0471
  cfg=(16, 64, 64, 4, 3) ms=0.0341
  cfg=(16, 64, 64, 8, 3) ms=0.0321
  cfg=(16, 64, 128, 4, 3) ms=0.0318
  cfg=(16, 128, 64, 4, 3) ms=0.0350
  cfg=(32, 32, 64, 4, 3) ms=0.0378
  cfg=(32, 64, 32, 4, 3) ms=0.0483
  cfg=(32, 64, 64, 4, 3) ms=0.0454
  cfg=(32, 64, 64, 8, 3) ms=0.0354
  cfg=(32, 64, 128, 4, 3) ms=0.0409
  cfg=(32, 128, 64, 4, 3) ms=0.0449
  cfg=(64, 64, 64, 4, 3) ms=0.0472
  cfg=(64, 128, 32, 4, 3) ms=0.0612
  cfg=(64, 128, 64, 4, 3) ms=0.0496
best shape=0 cfg=(16, 64, 128, 4, 3) ms=0.0318
shape=1 {'B': 2, 'C': 3, 'T': 4, 'H': 224, 'W': 224, 'kT': 2, 'kH': 14, 'kW': 14, 'embed_dim': 1280}
  cfg=(8, 64, 64, 4, 3) ms=0.0832
  cfg=(16, 32, 64, 4, 3) ms=0.0823
  cfg=(16, 64, 32, 4, 3) ms=0.0508
  cfg=(16, 64, 64, 4, 3) ms=0.0601
  cfg=(16, 64, 64, 8, 3) ms=0.0559
  cfg=(16, 64, 128, 4, 3) ms=0.0681
  cfg=(16, 128, 64, 4, 3) ms=0.0604
  cfg=(32, 32, 64, 4, 3) ms=0.0711
  cfg=(32, 64, 32, 4, 3) ms=0.0488
  cfg=(32, 64, 64, 4, 3) ms=0.0435
  cfg=(32, 64, 64, 8, 3) ms=0.0436
  cfg=(32, 64, 128, 4, 3) ms=0.0558
  cfg=(32, 128, 64, 4, 3) ms=0.0426
  cfg=(64, 64, 64, 4, 3) ms=0.0474
  cfg=(64, 128, 32, 4, 3) ms=0.0532
  cfg=(64, 128, 64, 4, 3) ms=0.0465
best s

... (1465 more chars)
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
diff (203 lines)
--- a//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@ -1,199 +1,6 @@
-import triton
-import triton.language as tl
-
-
-@triton.jit
-def _pack_weight_kernel(
-    weight,
-    weight_t,
-    total: tl.constexpr,
-    embed_dim: tl.constexpr,
-    K: tl.constexpr,
-    BLOCK: tl.constexpr,
-):
-    offs = tl.program_id(0) * BLOCK + tl.arange(0, BLOCK)
-    k = offs // embed_dim
-    e = offs - k * embed_dim
-    vals = tl.load(weight + e * K + k, mask=offs < total, other=0.0)
-    tl.store(weight_t + offs, vals, mask=offs < total)
-
-
-@triton.jit
-def _patch_embed_kernel(
-    )
-
-
-@triton.jit
-def _patch_embed_kernel_wt(
-    x,
-    weight_t,
-    y,
-    total_patches: tl.constexpr,
-    patches_per_batch: tl.constexpr,
-    C: tl.constexpr,
-    T: tl.constexpr,
-    H: tl.constexpr,
-    W: tl.constexpr,
-    kT: tl.constexpr,
-    kH: tl.constexpr,
-    kW: tl.constexpr,
-    To: tl.constexpr,
-    Ho: tl.constexpr,
-    Wo: tl.constexpr,
-    embed_dim: tl.constexpr,
-    K: tl.constexpr,
-    BLOCK_M: tl.constexpr,
-    BLOCK_N: tl.constexpr,
-    BLOCK_K: tl.constexpr,
-):
-    pid_m = tl.program_id(0)
-    pid_n = tl.program_id(1)
-
-    offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)
-    offs_n = pid_n * BLOCK_N + tl.arange(0, BLOCK_N)
-
-    b = offs_m // patches_per_batch
-    local_m = offs_m - b * patches_per_batch
-    ot = local_m // (Ho * Wo)
-    rem = local_m - ot * (Ho * Wo)
-    oh = rem // Wo
-    ow = rem - oh * Wo
-
-    acc = tl.zeros((BLOCK_M, BLOCK_N), tl.float32)
-
-    for k0 in range(0, K, BLOCK_K):
-        offs_k = k0 + tl.arange(0, BLOCK_K)
-        c = offs_k // (kT * kH * kW)
-        kr = offs_k - c * (kT * kH * kW)
-        kt = kr // (kH * kW)
-        kr = kr - kt * (kH * kW)
-        kh = kr // kW
-        kw = kr - kh * kW
-
-        x_t = ot[:, None] * kT + kt[None, :]
-        x_h = oh[:, None] * kH + kh[None, :]
-        x_w = ow[:, None] * kW + kw[None, :]
-        x_offsets = ((((b[:, None] * C + c[None, :]) * T + x_t) * H + x_h) * W + x_w)
-        wt_offsets = offs_k[:, None] * embed_dim + offs_n[None, :]
-
-        a = tl.load(
-            x + x_offsets,
-            mask=(offs_m[:, None] < total_patches) & (offs_k[None, :] < K),
-            other=0.0,
-        )
-        wv = tl.load(
-            weight_t + wt_offsets,
-            mask=(offs_k[:, None] < K) & (offs_n[None, :] < embed_dim),
-            other=0.0,
-        )
-        acc += tl.dot(a, wv)
-
-    y_offsets = (
-        b[:, None] * (embed_dim * patches_per_batch)
-        + offs_n[None, :] * patches_per_batch
-        + local_m[:, None]
-    )
-    tl.store(
-        y + y_offsets,
-        acc,
-        mask=(offs_m[:, None] < total_patches) & (offs_n[None, :] < embed_dim),
-    )
-
-
-@triton.jit
-def _patch_embed_kernel_em(
-        self.conv = _WeightOnly(C, kT, kH, kW, embed_dim)
-        nn.init.normal_(self.conv.weight, std=0.02)
-        self._weight_t = None
-        self._weight_t_version = -1
-
-    def _packed_weight(self) -> torch.Tensor:
-        version = self.conv.weight._version
-        if (
-            self._weight_t is None
-            or self._weight_t.device != self.conv.weight.device
-            or self._weight_t_version != version
-        ):
-            weight_t = torch.empty(
-                (self.K, self.embed_dim),
-                device=self.conv.weight.device,
-                dtype=self.conv.weight.dtype,
-            )
-            block = 1024
-            grid = (triton.cdiv(self.K * self.embed_dim, block),)
-            _pack_weight_kernel[grid](
-                self.conv.weight,
-                weight_t,
-                self.K * self.embed_dim,
-                self.embed_dim,
-                self.K,
-                BLOCK=block,
-                num_warps=4,
-            )
-            self._weight_t = weight_t
-            self._weight_t_version = version
-        return self._weight_t
-        if self.K == 768:
-            use_patch_major = 2
-            block_m = 32
-            block_n = 64
-            block_k = 128
-            warps = 4
         elif self.total_patches <= 256:
             use_patch_major = 2
             block_m = 16
             block_n = 64
-            block_k = 64
-            warps = 8
-            use_patch_major = 0
-            block_e = 128
-            block_m = 64
-            block_k = 64
+            block_k = 128
             warps = 4
-        else:
-            use_patch_major = 0
-            block_e = 128
-            block_m = 64
-            block_k = 64
-            warps = 4
-
-        if use_patch_major == 1:
-            grid = (
-                triton.cdiv(self.total_patches, block_m),
-                triton.cdiv(self.embed_dim, block_n),
-                num_warps=warps,
-                num_stages=3,
-            )
-        elif use_patch_major == 2:
-            weight_t = self._packed_weight()
-            grid = (
-                triton.cdiv(self.total_patches, block_m),
-                triton.cdiv(self.embed_dim, block_n),
-            )
-            _patch_embed_kernel_wt[grid](
-                x,
-                weight_t,
-                y,
-                self.total_patches,
-                self.patches_per_batch,
-                self.C,
-                self.T,
-                self.H,
-                self.W,
-                self.kT,
-                self.kH,
-                self.kW,
-                self.To,
-                self.Ho,
-                self.Wo,
-                self.embed_dim,
-                self.K,
-                BLOCK_M=block_m,
-                BLOCK_N=block_n,
-                BLOCK_K=block_k,
-                num_warps=warps,
-                num_stages=3,
-            )
-        else:
-            grid = (
-                triton.cdiv(self.embed_dim, block_e),
args
{
  "raw": "<361 chars \u2014 see below>"
}
raw (361 chars)
*** Begin Patch
*** Update File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@
         elif self.total_patches <= 256:
             use_patch_major = 2
             block_m = 16
             block_n = 64
-            block_k = 64
-            warps = 8
+            block_k = 128
+            warps = 4
*** End Patch
tool
stdout (186 chars)
output:
  Success. Updated the following files:
  M /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
exec_command
args
{
  "cmd": "uv run python check.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (113 chars)
Chunk ID: 1b9711
Wall time: 1.0011 seconds
Process running with session ID 65003
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 65003,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (107 chars)
Chunk ID: eb31d6
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 2
Output:
PASS
assistant
exec_command
args
{
  "cmd": "uv run python benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (113 chars)
Chunk ID: 62fe94
Wall time: 1.0011 seconds
Process running with session ID 49631
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 49631,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (1220 chars)
Chunk ID: f04a0a
Wall time: 1.2757 seconds
Process exited with code 0
Original token count: 279
Output:
shape=0 variant=eager tflops=3.683 gbps=20.394 ms=0.209
shape=0 variant=compiled tflops=3.196 gbps=17.700 ms=0.241
shape=0 variant=sota tflops=3.726 gbps=20.632 ms=0.207
shape=0 variant=solution tflops=22.394 gbps=124.013 ms=0.034
shape=0 solution_peak_fraction=0.1120
shape=1 variant=eager tflops=13.933 gbps=36.339 ms=0.221
shape=1 variant=compiled tflops=12.009 gbps=31.322 ms=0.257
shape=1 variant=sota tflops=14.090 gbps=36.748 ms=0.219
shape=1 variant=solution tflops=72.299 gbps=188.566 ms=0.043
shape=1 solution_peak_fraction=0.3615
shape=2 variant=eager tflops=26.276 gbps=54.275 ms=0.264
shape=2 variant=compiled tflops=23.022 gbps=47.554 ms=0.301
shape=2 variant=sota tflops=26.820 gbps=55.400 ms=0.259
shape=2 variant=solution tflops=128.527 gbps=265.487 ms=0.054
shape=2 solution_peak_fraction=0.6426
shape=3 variant=eager tflops=6.341 gbps=24.600 ms=0.146
shape=3 variant=compiled tflops=5.213 gbps=20.223 ms=0.177
shape=3 variant=sota tflops=6.580 gbps=25.527 ms=0.141
shape=3 variant=solution tflops=39.429 gbps=152.971 ms=0.023
shape=3 solution_peak_fraction=0.1971
peak_fraction: 0.2676
RESULT: OK
assistant
exec_command
args
{
  "cmd": "uv run python benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (113 chars)
Chunk ID: b55450
Wall time: 1.0010 seconds
Process running with session ID 35026
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 35026,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (1220 chars)
Chunk ID: 7179d8
Wall time: 1.1931 seconds
Process exited with code 0
Original token count: 279
Output:
shape=0 variant=eager tflops=3.680 gbps=20.378 ms=0.209
shape=0 variant=compiled tflops=3.188 gbps=17.654 ms=0.242
shape=0 variant=sota tflops=3.721 gbps=20.605 ms=0.207
shape=0 variant=solution tflops=22.404 gbps=124.071 ms=0.034
shape=0 solution_peak_fraction=0.1120
shape=1 variant=eager tflops=13.945 gbps=36.370 ms=0.221
shape=1 variant=compiled tflops=12.008 gbps=31.320 ms=0.257
shape=1 variant=sota tflops=14.107 gbps=36.794 ms=0.219
shape=1 variant=solution tflops=72.028 gbps=187.861 ms=0.043
shape=1 solution_peak_fraction=0.3601
shape=2 variant=eager tflops=26.206 gbps=54.131 ms=0.265
shape=2 variant=compiled tflops=23.096 gbps=47.708 ms=0.300
shape=2 variant=sota tflops=26.877 gbps=55.517 ms=0.258
shape=2 variant=solution tflops=128.451 gbps=265.330 ms=0.054
shape=2 solution_peak_fraction=0.6423
shape=3 variant=eager tflops=6.442 gbps=24.992 ms=0.144
shape=3 variant=compiled tflops=5.239 gbps=20.326 ms=0.177
shape=3 variant=sota tflops=6.581 gbps=25.533 ms=0.141
shape=3 variant=solution tflops=38.535 gbps=149.504 ms=0.024
shape=3 solution_peak_fraction=0.1927
peak_fraction: 0.2658
RESULT: OK
assistant
The packed layout is not stable under the official full benchmark, despite looking good in the isolated sweep. I’m taking it out of the selected path and keeping the faster observed mix: patch-major for the two launch-limited shapes, embed-major for the larger Qwen shapes.
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
diff (18 lines)
--- a//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@ -1,6 +1,12 @@
-        elif self.total_patches <= 256:
-            use_patch_major = 2
-            block_m = 16
+        if self.K == 768:
+            use_patch_major = 1
+            block_m = 32
             block_n = 64
             block_k = 128
             warps = 4
+        elif self.total_patches <= 256:
+            use_patch_major = 1
+            block_m = 16
+            block_n = 64
+            block_k = 64
+            warps = 8
args
{
  "raw": "<589 chars \u2014 see below>"
}
raw (589 chars)
*** Begin Patch
*** Update File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@
         if self.K == 768:
-            use_patch_major = 2
+            use_patch_major = 1
             block_m = 32
             block_n = 64
             block_k = 128
             warps = 4
         elif self.total_patches <= 256:
-            use_patch_major = 2
+            use_patch_major = 1
             block_m = 16
             block_n = 64
-            block_k = 128
-            warps = 4
+            block_k = 64
+            warps = 8
*** End Patch
tool
stdout (186 chars)
output:
  Success. Updated the following files:
  M /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
exec_command
args
{
  "cmd": "uv run python check.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (113 chars)
Chunk ID: 3a727c
Wall time: 1.0010 seconds
Process running with session ID 48712
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 48712,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (107 chars)
Chunk ID: b8e244
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 2
Output:
PASS
assistant
exec_command
args
{
  "cmd": "uv run python benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (113 chars)
Chunk ID: 211b46
Wall time: 1.0011 seconds
Process running with session ID 87686
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 87686,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (1220 chars)
Chunk ID: d5547b
Wall time: 1.3696 seconds
Process exited with code 0
Original token count: 279
Output:
shape=0 variant=eager tflops=3.689 gbps=20.428 ms=0.209
shape=0 variant=compiled tflops=3.078 gbps=17.044 ms=0.250
shape=0 variant=sota tflops=3.687 gbps=20.416 ms=0.209
shape=0 variant=solution tflops=20.471 gbps=113.367 ms=0.038
shape=0 solution_peak_fraction=0.1024
shape=1 variant=eager tflops=13.950 gbps=36.383 ms=0.221
shape=1 variant=compiled tflops=11.997 gbps=31.289 ms=0.257
shape=1 variant=sota tflops=14.121 gbps=36.829 ms=0.218
shape=1 variant=solution tflops=67.987 gbps=177.321 ms=0.045
shape=1 solution_peak_fraction=0.3399
shape=2 variant=eager tflops=26.365 gbps=54.460 ms=0.263
shape=2 variant=compiled tflops=23.076 gbps=47.665 ms=0.301
shape=2 variant=sota tflops=26.933 gbps=55.634 ms=0.258
shape=2 variant=solution tflops=125.987 gbps=260.241 ms=0.055
shape=2 solution_peak_fraction=0.6299
shape=3 variant=eager tflops=6.530 gbps=25.334 ms=0.142
shape=3 variant=compiled tflops=5.224 gbps=20.269 ms=0.177
shape=3 variant=sota tflops=6.603 gbps=25.618 ms=0.140
shape=3 variant=solution tflops=41.111 gbps=159.499 ms=0.022
shape=3 solution_peak_fraction=0.2056
peak_fraction: 0.2591
RESULT: OK
assistant
exec_command
args
{
  "cmd": "uv run python benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (112 chars)
Chunk ID: b7c1f6
Wall time: 1.0016 seconds
Process running with session ID 9332
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 9332,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (1220 chars)
Chunk ID: 2c2e2e
Wall time: 1.1980 seconds
Process exited with code 0
Original token count: 279
Output:
shape=0 variant=eager tflops=3.676 gbps=20.355 ms=0.210
shape=0 variant=compiled tflops=3.184 gbps=17.632 ms=0.242
shape=0 variant=sota tflops=3.727 gbps=20.642 ms=0.207
shape=0 variant=solution tflops=23.349 gbps=129.303 ms=0.033
shape=0 solution_peak_fraction=0.1167
shape=1 variant=eager tflops=13.878 gbps=36.195 ms=0.222
shape=1 variant=compiled tflops=11.978 gbps=31.240 ms=0.257
shape=1 variant=sota tflops=14.096 gbps=36.764 ms=0.219
shape=1 variant=solution tflops=67.487 gbps=176.017 ms=0.046
shape=1 solution_peak_fraction=0.3374
shape=2 variant=eager tflops=26.315 gbps=54.358 ms=0.264
shape=2 variant=compiled tflops=23.025 gbps=47.562 ms=0.301
shape=2 variant=sota tflops=26.925 gbps=55.617 ms=0.258
shape=2 variant=solution tflops=125.622 gbps=259.487 ms=0.055
shape=2 solution_peak_fraction=0.6281
shape=3 variant=eager tflops=6.472 gbps=25.110 ms=0.143
shape=3 variant=compiled tflops=5.216 gbps=20.236 ms=0.177
shape=3 variant=sota tflops=6.598 gbps=25.597 ms=0.140
shape=3 variant=solution tflops=40.535 gbps=157.262 ms=0.023
shape=3 solution_peak_fraction=0.2027
peak_fraction: 0.2661
RESULT: OK
assistant
exec_command
args
{
  "cmd": "uv run python benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (113 chars)
Chunk ID: 4a22a5
Wall time: 1.0008 seconds
Process running with session ID 39121
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 39121,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (1220 chars)
Chunk ID: c91f09
Wall time: 1.0692 seconds
Process exited with code 0
Original token count: 279
Output:
shape=0 variant=eager tflops=3.690 gbps=20.435 ms=0.209
shape=0 variant=compiled tflops=3.185 gbps=17.636 ms=0.242
shape=0 variant=sota tflops=3.732 gbps=20.666 ms=0.207
shape=0 variant=solution tflops=23.531 gbps=130.314 ms=0.033
shape=0 solution_peak_fraction=0.1177
shape=1 variant=eager tflops=13.921 gbps=36.307 ms=0.221
shape=1 variant=compiled tflops=12.022 gbps=31.355 ms=0.256
shape=1 variant=sota tflops=14.100 gbps=36.775 ms=0.219
shape=1 variant=solution tflops=69.059 gbps=180.118 ms=0.045
shape=1 solution_peak_fraction=0.3453
shape=2 variant=eager tflops=26.357 gbps=54.444 ms=0.263
shape=2 variant=compiled tflops=23.047 gbps=47.607 ms=0.301
shape=2 variant=sota tflops=26.895 gbps=55.555 ms=0.258
shape=2 variant=solution tflops=126.983 gbps=262.299 ms=0.055
shape=2 solution_peak_fraction=0.6349
shape=3 variant=eager tflops=6.501 gbps=25.220 ms=0.142
shape=3 variant=compiled tflops=5.220 gbps=20.251 ms=0.177
shape=3 variant=sota tflops=6.589 gbps=25.562 ms=0.140
shape=3 variant=solution tflops=39.456 gbps=153.076 ms=0.023
shape=3 solution_peak_fraction=0.1973
peak_fraction: 0.2671
RESULT: OK
assistant
exec_command
args
{
  "cmd": "uv run ruff check . --fix",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 12000
}
tool
stdout (142 chars)
Chunk ID: 9f36ba
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 10
Output:
Found 4 errors (4 fixed, 0 remaining).
assistant
`ruff` fixed four style issues in the local scratch/solution files. I’ll re-run correctness after the formatter/linter changes and then do the repo test command required by the project instructions.
assistant
exec_command
args
{
  "cmd": "sed -n '1,280p' solution.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 12000
}
assistant
exec_command
args
{
  "cmd": "git status --short",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 4000
}
tool
stdout (7594 chars) — TRUNCATED
Chunk ID: 0b1c3a
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 1873
Output:
import torch
import torch.nn as nn
import triton
import triton.language as tl


@triton.jit
def _pack_weight_kernel(
    weight,
    weight_t,
    total: tl.constexpr,
    embed_dim: tl.constexpr,
    K: tl.constexpr,
    BLOCK: tl.constexpr,
):
    offs = tl.program_id(0) * BLOCK + tl.arange(0, BLOCK)
    k = offs // embed_dim
    e = offs - k * embed_dim
    vals = tl.load(weight + e * K + k, mask=offs < total, other=0.0)
    tl.store(weight_t + offs, vals, mask=offs < total)


@triton.jit
def _patch_embed_kernel(
    x,
    weight,
    y,
    total_patches: tl.constexpr,
    patches_per_batch: tl.constexpr,
    C: tl.constexpr,
    T: tl.constexpr,
    H: tl.constexpr,
    W: tl.constexpr,
    kT: tl.constexpr,
    kH: tl.constexpr,
    kW: tl.constexpr,
    To: tl.constexpr,
    Ho: tl.constexpr,
    Wo: tl.constexpr,
    embed_dim: tl.constexpr,
    K: tl.constexpr,
    BLOCK_M: tl.constexpr,
    BLOCK_N: tl.constexpr,
    BLOCK_K: tl.constexpr,
):
    pid_m = tl.program_id(0)
    pid_n = tl.program_id(1)

    offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)
    offs_n = pid_n * BLOCK_N + tl.arange(0, BLOCK_N)

    b = offs_m // patches_per_batch
    local_m = offs_m - b * patches_per_batch
    ot = local_m // (Ho * Wo)
    rem = local_m - ot * (Ho * Wo)
    oh = rem // Wo
    ow = rem - oh * Wo

    acc = tl.zeros((BLOCK_M, BLOCK_N), tl.float32)

    for k0 in range(

... (6094 more chars)
tool
stdout (170 chars)
Chunk ID: 1e3cf2
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 17
Output:
?? ../09_fmha_preattn_mrope/
?? ./
?? ../../scripts/sweep_09_10.sh
assistant
exec_command
args
{
  "cmd": "sed -n '280,560p' solution.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (5103 chars) — TRUNCATED
Chunk ID: 1c2c68
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 1250
Output:
        self.To, self.Ho, self.Wo = T // kT, H // kH, W // kW
        self.K = C * kT * kH * kW
        self.total_patches = B * self.To * self.Ho * self.Wo
        self.patches_per_batch = self.To * self.Ho * self.Wo

        self.conv = _WeightOnly(C, kT, kH, kW, embed_dim)
        nn.init.normal_(self.conv.weight, std=0.02)
        self._weight_t = None
        self._weight_t_version = -1

    def _packed_weight(self) -> torch.Tensor:
        version = self.conv.weight._version
        if (
            self._weight_t is None
            or self._weight_t.device != self.conv.weight.device
            or self._weight_t_version != version
        ):
            weight_t = torch.empty(
                (self.K, self.embed_dim),
                device=self.conv.weight.device,
                dtype=self.conv.weight.dtype,
            )
            block = 1024
            grid = (triton.cdiv(self.K * self.embed_dim, block),)
            _pack_weight_kernel[grid](
                self.conv.weight,
                weight_t,
                self.K * self.embed_dim,
                self.embed_dim,
                self.K,
                BLOCK=block,
                num_warps=4,
            )
            self._weight_t = weight_t
            self._weight_t_version = version
        return self._weight_t

    def forward(self, x: torch.Tensor) -> torch.Tensor:
        y = torch.empt

... (3603 more chars)
assistant
The lint pass left the scratch packed-weight path in `solution.py`, but it is not selected anymore. I’m removing that unused path from the final solution so the hot code is just the two measured Triton kernels.
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
diff (51 lines)
--- a//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@ -1,12 +1,46 @@
+@triton.jit
+def _patch_embed_kernel(
+    )
+
+
+@triton.jit
+def _patch_embed_kernel_em(
+        self.conv = _WeightOnly(C, kT, kH, kW, embed_dim)
+        nn.init.normal_(self.conv.weight, std=0.02)
+
+    def forward(self, x: torch.Tensor) -> torch.Tensor:
+
         if self.K == 768:
-            use_patch_major = 1
+            use_patch_major = True
             block_m = 32
             block_n = 64
             block_k = 128
             warps = 4
         elif self.total_patches <= 256:
-            use_patch_major = 1
+            use_patch_major = True
             block_m = 16
             block_n = 64
             block_k = 64
             warps = 8
+        elif self.total_patches <= 1024:
+            use_patch_major = False
+            block_e = 128
+            block_m = 64
+            block_k = 64
+            warps = 4
+        else:
+            use_patch_major = False
+            block_e = 128
+            block_m = 64
+            block_k = 64
+            warps = 4
+
+        if use_patch_major:
+            grid = (
+                triton.cdiv(self.total_patches, block_m),
+                triton.cdiv(self.embed_dim, block_n),
+                num_warps=warps,
+                num_stages=3,
+            )
+        else:
+            grid = (
args
{
  "raw": "<6062 chars \u2014 see below>"
}
raw (6062 chars — TRUNCATED)
*** Begin Patch
*** Update File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@
-@triton.jit
-def _pack_weight_kernel(
-    weight,
-    weight_t,
-    total: tl.constexpr,
-    embed_dim: tl.constexpr,
-    K: tl.constexpr,
-    BLOCK: tl.constexpr,
-):
-    offs = tl.program_id(0) * BLOCK + tl.arange(0, BLOCK)
-    k = offs // embed_dim
-    e = offs - k * embed_dim
-    vals = tl.load(weight + e * K + k, mask=offs < total, other=0.0)
-    tl.store(weight_t + offs, vals, mask=offs < total)
-
-
 @triton.jit
 def _patch_embed_kernel(
@@
     )
 
 
-@triton.jit
-def _patch_embed_kernel_wt(
-    x,
-    weight_t,
-    y,
-    total_patches: tl.constexpr,
-    patches_per_batch: tl.constexpr,
-    C: tl.constexpr,
-    T: tl.constexpr,
-    H: tl.constexpr,
-    W: tl.constexpr,
-    kT: tl.constexpr,
-    kH: tl.constexpr,
-    kW: tl.constexpr,
-    To: tl.constexpr,
-    Ho: tl.constexpr,
-    Wo: tl.constexpr,
-    embed_dim: tl.constexpr,
-    K: tl.constexpr,
-    BLOCK_M: tl.constexpr,
-    BLOCK_N: tl.constexpr,
-    BLOCK_K: tl.constexpr,
-):
-    pid_m = tl.program_id(0)
-    pid_n = tl.program_id(1)
-
-    offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)
-    offs_n = pid_n * BLOCK_N + tl.arange(0, BLOCK_N)
-
-    b = offs_m // patches_per_batch
-    local_m = offs_m - b * patches_per_batch
-    ot = local_m // (Ho * Wo)
-    rem = local_m - ot * (Ho * Wo)
-    oh = rem // Wo
-    ow = rem - oh * Wo
-
-    acc = tl.zeros((BLOCK_M, BLOCK_N), tl.float32)
-
-    for k0 in range(0, K, BLOCK_K):
-        offs_k = k0 + tl.arange(0, BLOCK_K)
-        c = offs_k // (kT * kH * kW)
-        kr = offs_k - c * (kT * kH * kW)
-        kt = kr // (kH * kW)
-        kr = kr - kt * (kH * kW)
-        kh = kr // kW
-        kw = kr - kh * kW
-
-        x_t = ot[:, None] * kT + kt[None, :]
-        x_h = oh[:, None] * kH + kh[None, :]
-        x_w = ow[:, None] * kW + kw[None, :]
-        x_offsets = ((((b[:, None] * C + c[None, :]) * T + x_t) * H + x_h) * W + x_w)
-        wt_offsets = offs_k[:, None] * embed_dim + offs_n[None, :]
-
-        a = tl.load(
-            x + x_offsets,
-            mask=(offs_m[:, None] < total_patches) & (offs_k[None, :] < K),
-            other=0.0,
-        )
-        wv = tl.load(
-            weight_t + wt_offsets,
-            mask=(offs_k[:, None] < K) & (offs_n[None, :] < embed_dim),
-            other=0.0,
-        )
-        acc += tl.dot(a, wv)
-
-    y_offsets = (
-        b[:, None] * (embed_dim * patches_per_batch)
-        + offs_n[None, :] * patches_per_batch
-        + local_m[:, None]
-    )
-    tl.store(
-        y + y_offsets,
-        acc,
-        mask=(offs_m[:, None] < total_patches) & (offs_n[None, :] < embed_dim),
-    )
-
-
 @triton.jit
 def _patch_embed_kernel_em(
@@
         self.conv = _WeightOnly(C, kT, kH, kW, embed_dim)
         nn.init.normal_(self.conv.weight, std=0.02)
-        self._weight_t = None
-        self._weight_t_version = -1
-
-    def _packed_weight(self) -> torch.Tensor:
-        version = self.conv.weight._version
-        if (
-            self._weight_t is None
-            or self._weight_t.device != self.conv.weight.device
-            or self._weight_t_version != version
-        ):
-            weight_t = torch.empty(
-                (self.K, self.embed_dim),
-                device=self.conv.weight.device,
-                dtype=self.conv.weight.dtype,
-            )
-            block = 1024
-            grid = (triton.cdiv(self.K * self.embed_dim, block),)
-            _pack_weight_kernel[grid](
-                self.conv.weight,
-                weight_t,
-                self.K * self.embed_dim,
-                self.embed_dim,
-                self.K,
-                BLOCK=block,
-                num_warps=4,
-            )
-            self._weight_t = weight_t
-            self._weight_t_version = version
-        return self._weight_t
 
     def forward(self, x: torch.Tensor) -> torch.Tensor:
@@
 


... (2062 more chars)
tool
stdout (186 chars)
output:
  Success. Updated the following files:
  M /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
exec_command
args
{
  "cmd": "uv run ruff check . --fix",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 12000
}
tool
stdout (121 chars)
Chunk ID: c9e8c3
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 5
Output:
All checks passed!
assistant
exec_command
args
{
  "cmd": "uv run python check.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (113 chars)
Chunk ID: 8b06f3
Wall time: 1.0008 seconds
Process running with session ID 44867
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 44867,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (107 chars)
Chunk ID: 9131b4
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 2
Output:
PASS
assistant
exec_command
args
{
  "cmd": "uv run python benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (113 chars)
Chunk ID: 9fc43c
Wall time: 1.0010 seconds
Process running with session ID 94453
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 94453,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (1220 chars)
Chunk ID: 9426cf
Wall time: 0.8322 seconds
Process exited with code 0
Original token count: 279
Output:
shape=0 variant=eager tflops=3.683 gbps=20.395 ms=0.209
shape=0 variant=compiled tflops=3.201 gbps=17.729 ms=0.241
shape=0 variant=sota tflops=3.733 gbps=20.674 ms=0.206
shape=0 variant=solution tflops=23.036 gbps=127.571 ms=0.033
shape=0 solution_peak_fraction=0.1152
shape=1 variant=eager tflops=13.947 gbps=36.376 ms=0.221
shape=1 variant=compiled tflops=12.013 gbps=31.332 ms=0.257
shape=1 variant=sota tflops=14.106 gbps=36.791 ms=0.219
shape=1 variant=solution tflops=67.534 gbps=176.140 ms=0.046
shape=1 solution_peak_fraction=0.3377
shape=2 variant=eager tflops=26.370 gbps=54.470 ms=0.263
shape=2 variant=compiled tflops=23.011 gbps=47.531 ms=0.301
shape=2 variant=sota tflops=26.890 gbps=55.544 ms=0.258
shape=2 variant=solution tflops=126.723 gbps=261.762 ms=0.055
shape=2 solution_peak_fraction=0.6336
shape=3 variant=eager tflops=6.418 gbps=24.901 ms=0.144
shape=3 variant=compiled tflops=5.231 gbps=20.293 ms=0.177
shape=3 variant=sota tflops=6.611 gbps=25.647 ms=0.140
shape=3 variant=solution tflops=40.678 gbps=157.816 ms=0.023
shape=3 solution_peak_fraction=0.2034
peak_fraction: 0.2661
RESULT: OK
assistant
The cleaned solution still passes `check.py`; the latest benchmark run reports `peak_fraction: 0.2661` with the large shape at about 126.7 TFLOPS. I’ll run the project-mandated `pytest` now, then do one final sanity pass on the file and command outputs.
assistant
exec_command
args
{
  "cmd": "uv run pytest",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 12000
}
tool
stdout (419 chars)
Chunk ID: dc000b
Wall time: 0.0000 seconds
Process exited with code 5
Original token count: 79
Output:
============================= test session starts ==============================
platform linux -- Python 3.11.15, pytest-9.0.3, pluggy-1.6.0
rootdir: /home/infatoshi/cuda/KernelBench-Hard
configfile: pyproject.toml
collected 0 items

============================ no tests ran in 0.00s =============================
assistant
exec_command
args
{
  "cmd": "sed -n '1,260p' solution.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 16000
}
assistant
exec_command
args
{
  "cmd": "ls -la",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 4000
}
tool
stdout (7236 chars) — TRUNCATED
Chunk ID: 464c3e
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 1783
Output:
import torch
import torch.nn as nn
import triton
import triton.language as tl


@triton.jit
def _patch_embed_kernel(
    x,
    weight,
    y,
    total_patches: tl.constexpr,
    patches_per_batch: tl.constexpr,
    C: tl.constexpr,
    T: tl.constexpr,
    H: tl.constexpr,
    W: tl.constexpr,
    kT: tl.constexpr,
    kH: tl.constexpr,
    kW: tl.constexpr,
    To: tl.constexpr,
    Ho: tl.constexpr,
    Wo: tl.constexpr,
    embed_dim: tl.constexpr,
    K: tl.constexpr,
    BLOCK_M: tl.constexpr,
    BLOCK_N: tl.constexpr,
    BLOCK_K: tl.constexpr,
):
    pid_m = tl.program_id(0)
    pid_n = tl.program_id(1)

    offs_m = pid_m * BLOCK_M + tl.arange(0, BLOCK_M)
    offs_n = pid_n * BLOCK_N + tl.arange(0, BLOCK_N)

    b = offs_m // patches_per_batch
    local_m = offs_m - b * patches_per_batch
    ot = local_m // (Ho * Wo)
    rem = local_m - ot * (Ho * Wo)
    oh = rem // Wo
    ow = rem - oh * Wo

    acc = tl.zeros((BLOCK_M, BLOCK_N), tl.float32)

    for k0 in range(0, K, BLOCK_K):
        offs_k = k0 + tl.arange(0, BLOCK_K)
        c = offs_k // (kT * kH * kW)
        kr = offs_k - c * (kT * kH * kW)
        kt = kr // (kH * kW)
        kr = kr - kt * (kH * kW)
        kh = kr // kW
        kw = kr - kh * kW

        x_t = ot[:, None] * kT + kt[None, :]
        x_h = oh[:, None] * kH + kh[None, :]
        x_w = ow[:, None] * kW + kw[None, :]
        x_offsets = (

... (5736 more chars)
tool
stdout (1124 chars)
Chunk ID: 97c36b
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 255
Output:
total 76
drwxrwxr-x  3 infatoshi infatoshi 4096 May  7 04:34 .
drwxrwxr-x 12 infatoshi infatoshi 4096 May  4 13:57 ..
-rw-rw-r--  1 infatoshi infatoshi 2969 May  4 14:03 PROMPT.txt
drwxrwxr-x  2 infatoshi infatoshi 4096 May  7 04:36 __pycache__
-rw-rw-r--  1 infatoshi infatoshi 4626 May  4 14:02 benchmark.py
-rw-rw-r--  1 infatoshi infatoshi 3988 May  4 14:02 check.py
-rw-rw-r--  1 infatoshi infatoshi    7 May  7 04:36 framework.txt
-rw-rw-r--  1 infatoshi infatoshi 1541 May  4 14:01 problem.yaml
-rw-rw-r--  1 infatoshi infatoshi 1994 May  4 14:01 reference.py
-rw-rw-r--  1 infatoshi infatoshi  953 May  4 14:01 shapes.py
-rw-rw-r--  1 infatoshi infatoshi 8065 May  7 04:36 solution.py
-rw-rw-r--  1 infatoshi infatoshi  534 May  4 14:02 sota.py
-rw-rw-r--  1 infatoshi infatoshi 2939 May  7 04:36 tune_big.py
-rw-rw-r--  1 infatoshi infatoshi 4259 May  7 04:36 tune_orientations.py
-rw-rw-r--  1 infatoshi infatoshi 2979 May  7 04:36 tune_triton.py
-rw-rw-r--  1 infatoshi infatoshi 3026 May  7 04:36 tune_wt.py
assistant
exec_command
args
{
  "cmd": "sed -n '260,420p' solution.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 8000
}
tool
stdout (1052 chars)
Chunk ID: 134040
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 237
Output:
            )
            _patch_embed_kernel_em[grid](
                x,
                self.conv.weight,
                y,
                self.total_patches,
                self.patches_per_batch,
                self.C,
                self.T,
                self.H,
                self.W,
                self.kT,
                self.kH,
                self.kW,
                self.To,
                self.Ho,
                self.Wo,
                self.embed_dim,
                self.K,
                BLOCK_E=block_e,
                BLOCK_M=block_m,
                BLOCK_K=block_k,
                num_warps=warps,
                num_stages=3,
            )
        return y


B = 1
C = 3
T = 2
H = 224
W = 224
kT = 2
kH = 14
kW = 14
embed_dim = 1280


def get_inputs():
    x = torch.randn(B, C, T, H, W, dtype=torch.bfloat16) * 0.5
    return [x]


def get_init_inputs():
    return [B, C, T, H, W, kT, kH, kW, embed_dim]
assistant
The current kernel is limited mainly by the two small GEMMs, so I’m doing one final small-shape tile sweep before stopping. If it does not find a consistent win, I’ll keep the simpler measured configuration.
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_small.py
diff (112 lines)
--- /dev/null
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_small.py
@@ -0,0 +1,109 @@
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+import torch
+
+REPO_ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(REPO_ROOT))
+
+from src.eval.timing import time_fn  # noqa: E402
+
+import reference  # noqa: E402
+import shapes  # noqa: E402
+import solution  # noqa: E402
+
+
+CONFIGS = [
+    (8, 32, 64, 4, 3),
+    (8, 64, 64, 4, 3),
+    (8, 64, 128, 4, 3),
+    (8, 128, 32, 4, 3),
+    (8, 128, 64, 4, 3),
+    (8, 128, 128, 4, 3),
+    (16, 32, 128, 4, 3),
+    (16, 64, 64, 4, 3),
+    (16, 64, 64, 8, 3),
+    (16, 64, 128, 4, 3),
+    (16, 128, 64, 4, 3),
+    (16, 128, 128, 4, 3),
+    (16, 256, 64, 4, 3),
+    (32, 32, 128, 4, 3),
+    (32, 64, 64, 4, 3),
+    (32, 64, 128, 4, 3),
+    (32, 128, 64, 4, 3),
+    (32, 128, 128, 4, 3),
+]
+
+
+def run_mn(model: solution.Model, x: torch.Tensor, cfg: tuple[int, int, int, int, int]):
+    block_m, block_n, block_k, warps, stages = cfg
+
+    def fn(inp: torch.Tensor):
+        y = torch.empty(
+            (model.B, model.embed_dim, model.To, model.Ho, model.Wo),
+            device=inp.device,
+            dtype=inp.dtype,
+        )
+        grid = (
+            solution.triton.cdiv(model.total_patches, block_m),
+            solution.triton.cdiv(model.embed_dim, block_n),
+        )
+        solution._patch_embed_kernel[grid](
+            inp,
+            model.conv.weight,
+            y,
+            model.total_patches,
+            model.patches_per_batch,
+            model.C,
+            model.T,
+            model.H,
+            model.W,
+            model.kT,
+            model.kH,
+            model.kW,
+            model.To,
+            model.Ho,
+            model.Wo,
+            model.embed_dim,
+            model.K,
+            BLOCK_M=block_m,
+            BLOCK_N=block_n,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=stages,
+        )
+        return y
+
+    return time_fn(fn, [x], iters=20, warmup=6)
+
+
+def main() -> None:
+    device = torch.device("cuda:0")
+    for shape_idx in (0, 3):
+        shape = shapes.SHAPES[shape_idx]
+        for k, v in shape.items():
+            setattr(reference, k, v)
+        init_args = reference.get_init_inputs()
+        ref = reference.Model(*init_args).to(device).eval()
+        model = solution.Model(*init_args).to(device).eval()
+        model.load_state_dict(ref.state_dict(), strict=True)
+        torch.manual_seed(2026)
+        x = reference.get_inputs()[0].to(device)
+        print(f"shape={shape_idx} {shape}")
+        best = None
+        for cfg in CONFIGS:
+            try:
+                ms = run_mn(model, x, cfg)
+            except Exception as exc:  # noqa: BLE001
+                print(f"  cfg={cfg} error={type(exc).__name__}: {exc}")
+                continue
+            if best is None or ms < best[0]:
+                best = (ms, cfg)
+            print(f"  cfg={cfg} ms={ms:.4f}")
+        print(f"best shape={shape_idx} cfg={best[1]} ms={best[0]:.4f}")
+
+
+if __name__ == "__main__":
+    main()
args
{
  "raw": "<3215 chars \u2014 see below>"
}
raw (3215 chars)
*** Begin Patch
*** Add File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_small.py
+from __future__ import annotations
+
+import sys
+from pathlib import Path
+
+import torch
+
+REPO_ROOT = Path(__file__).resolve().parents[2]
+sys.path.insert(0, str(REPO_ROOT))
+
+from src.eval.timing import time_fn  # noqa: E402
+
+import reference  # noqa: E402
+import shapes  # noqa: E402
+import solution  # noqa: E402
+
+
+CONFIGS = [
+    (8, 32, 64, 4, 3),
+    (8, 64, 64, 4, 3),
+    (8, 64, 128, 4, 3),
+    (8, 128, 32, 4, 3),
+    (8, 128, 64, 4, 3),
+    (8, 128, 128, 4, 3),
+    (16, 32, 128, 4, 3),
+    (16, 64, 64, 4, 3),
+    (16, 64, 64, 8, 3),
+    (16, 64, 128, 4, 3),
+    (16, 128, 64, 4, 3),
+    (16, 128, 128, 4, 3),
+    (16, 256, 64, 4, 3),
+    (32, 32, 128, 4, 3),
+    (32, 64, 64, 4, 3),
+    (32, 64, 128, 4, 3),
+    (32, 128, 64, 4, 3),
+    (32, 128, 128, 4, 3),
+]
+
+
+def run_mn(model: solution.Model, x: torch.Tensor, cfg: tuple[int, int, int, int, int]):
+    block_m, block_n, block_k, warps, stages = cfg
+
+    def fn(inp: torch.Tensor):
+        y = torch.empty(
+            (model.B, model.embed_dim, model.To, model.Ho, model.Wo),
+            device=inp.device,
+            dtype=inp.dtype,
+        )
+        grid = (
+            solution.triton.cdiv(model.total_patches, block_m),
+            solution.triton.cdiv(model.embed_dim, block_n),
+        )
+        solution._patch_embed_kernel[grid](
+            inp,
+            model.conv.weight,
+            y,
+            model.total_patches,
+            model.patches_per_batch,
+            model.C,
+            model.T,
+            model.H,
+            model.W,
+            model.kT,
+            model.kH,
+            model.kW,
+            model.To,
+            model.Ho,
+            model.Wo,
+            model.embed_dim,
+            model.K,
+            BLOCK_M=block_m,
+            BLOCK_N=block_n,
+            BLOCK_K=block_k,
+            num_warps=warps,
+            num_stages=stages,
+        )
+        return y
+
+    return time_fn(fn, [x], iters=20, warmup=6)
+
+
+def main() -> None:
+    device = torch.device("cuda:0")
+    for shape_idx in (0, 3):
+        shape = shapes.SHAPES[shape_idx]
+        for k, v in shape.items():
+            setattr(reference, k, v)
+        init_args = reference.get_init_inputs()
+        ref = reference.Model(*init_args).to(device).eval()
+        model = solution.Model(*init_args).to(device).eval()
+        model.load_state_dict(ref.state_dict(), strict=True)
+        torch.manual_seed(2026)
+        x = reference.get_inputs()[0].to(device)
+        print(f"shape={shape_idx} {shape}")
+        best = None
+        for cfg in CONFIGS:
+            try:
+                ms = run_mn(model, x, cfg)
+            except Exception as exc:  # noqa: BLE001
+                print(f"  cfg={cfg} error={type(exc).__name__}: {exc}")
+                continue
+            if best is None or ms < best[0]:
+                best = (ms, cfg)
+            print(f"  cfg={cfg} ms={ms:.4f}")
+        print(f"best shape={shape_idx} cfg={best[1]} ms={best[0]:.4f}")
+
+
+if __name__ == "__main__":
+    main()
*** End Patch
tool
stdout (188 chars)
output:
  Success. Updated the following files:
  A /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/tune_small.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
exec_command
args
{
  "cmd": "uv run python tune_small.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 16000
}
tool
stdout (112 chars)
Chunk ID: 243ee8
Wall time: 1.0010 seconds
Process running with session ID 8675
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 8675,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 16000
}
tool
stdout (1680 chars) — TRUNCATED
Chunk ID: 741bc6
Wall time: 1.4026 seconds
Process exited with code 0
Original token count: 394
Output:
shape=0 {'B': 1, 'C': 3, 'T': 2, 'H': 224, 'W': 224, 'kT': 2, 'kH': 14, 'kW': 14, 'embed_dim': 1280}
  cfg=(8, 32, 64, 4, 3) ms=0.0381
  cfg=(8, 64, 64, 4, 3) ms=0.0388
  cfg=(8, 64, 128, 4, 3) ms=0.0439
  cfg=(8, 128, 32, 4, 3) ms=0.0561
  cfg=(8, 128, 64, 4, 3) ms=0.0396
  cfg=(8, 128, 128, 4, 3) ms=0.0476
  cfg=(16, 32, 128, 4, 3) ms=0.0488
  cfg=(16, 64, 64, 4, 3) ms=0.0330
  cfg=(16, 64, 64, 8, 3) ms=0.0323
  cfg=(16, 64, 128, 4, 3) ms=0.0333
  cfg=(16, 128, 64, 4, 3) ms=0.0349
  cfg=(16, 128, 128, 4, 3) ms=0.0317
  cfg=(16, 256, 64, 4, 3) ms=0.0489
  cfg=(32, 32, 128, 4, 3) ms=0.0359
  cfg=(32, 64, 64, 4, 3) ms=0.0385
  cfg=(32, 64, 128, 4, 3) ms=0.0381
  cfg=(32, 128, 64, 4, 3) ms=0.0429
  cfg=(32, 128, 128, 4, 3) ms=0.0336
best shape=0 cfg=(16, 128, 128, 4, 3) ms=0.0317
shape=3 {'B': 4, 'C': 3, 'T': 1, 'H': 224, 'W': 224, 'kT': 1, 'kH': 16, 'kW': 16, 'embed_dim': 768}
  cfg=(8, 32, 64, 4, 3) ms=0.0375
  cfg=(8, 64, 64, 4, 3) ms=0.0377
  cfg=(8, 64, 128, 4, 3) ms=0.0341
  cfg=(8, 128, 32, 4, 3) ms=0.0412
  cfg=(8, 128, 64, 4, 3) ms=0.0349
  cfg=(8, 128, 128, 4, 3) ms=0.0352
  cfg=(16, 32, 128, 4, 3) ms=0.0530
  cfg=(16, 64, 64, 4, 3) ms=0.0485
  cfg=(16, 64, 64, 8, 3) ms=0.0510
  cfg=(16, 64, 128, 4, 3) ms=0.0510
  cfg=(16, 128, 64, 4, 3) ms=0.0352
  cfg=(16, 128, 128, 4, 3) ms=0.0271
  cfg=(16, 256, 64, 4, 3) ms=0.0253
  cfg=(32, 32, 128, 4, 3) ms=0.0248
  cfg=(32, 

... (180 more chars)
assistant
apply_patch /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
diff (51 lines)
--- a//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
+++ b//home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@ -1,46 +1,6 @@
-@triton.jit
-def _patch_embed_kernel(
-    )
-
-
-@triton.jit
-def _patch_embed_kernel_em(
-        self.conv = _WeightOnly(C, kT, kH, kW, embed_dim)
-        nn.init.normal_(self.conv.weight, std=0.02)
-
-    def forward(self, x: torch.Tensor) -> torch.Tensor:
-
-        if self.K == 768:
-            use_patch_major = True
-            block_m = 32
-            block_n = 64
-            block_k = 128
-            warps = 4
         elif self.total_patches <= 256:
             use_patch_major = True
             block_m = 16
-            block_n = 64
-            block_k = 64
-            warps = 8
-        elif self.total_patches <= 1024:
-            use_patch_major = False
-            block_e = 128
-            block_m = 64
-            block_k = 64
+            block_n = 128
+            block_k = 128
             warps = 4
-        else:
-            use_patch_major = False
-            block_e = 128
-            block_m = 64
-            block_k = 64
-            warps = 4
-
-        if use_patch_major:
-            grid = (
-                triton.cdiv(self.total_patches, block_m),
-                triton.cdiv(self.embed_dim, block_n),
-                num_warps=warps,
-                num_stages=3,
-            )
-        else:
-            grid = (
args
{
  "raw": "<391 chars \u2014 see below>"
}
raw (391 chars)
*** Begin Patch
*** Update File: /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
@@
         elif self.total_patches <= 256:
             use_patch_major = True
             block_m = 16
-            block_n = 64
-            block_k = 64
-            warps = 8
+            block_n = 128
+            block_k = 128
+            warps = 4
*** End Patch
tool
stdout (186 chars)
output:
  Success. Updated the following files:
  M /home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py
metadata:
  exit_code: 0
  duration_seconds: 0.0
assistant
exec_command
args
{
  "cmd": "uv run ruff check . --fix",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 12000
}
tool
stdout (141 chars)
Chunk ID: b6a73e
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 10
Output:
Found 1 error (1 fixed, 0 remaining).
assistant
exec_command
args
{
  "cmd": "uv run python check.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (113 chars)
Chunk ID: 17b363
Wall time: 1.0005 seconds
Process running with session ID 12862
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 12862,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 6000
}
tool
stdout (107 chars)
Chunk ID: 98ce27
Wall time: 0.0000 seconds
Process exited with code 0
Original token count: 2
Output:
PASS
assistant
exec_command
args
{
  "cmd": "uv run python benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (113 chars)
Chunk ID: 8d079d
Wall time: 1.0004 seconds
Process running with session ID 69818
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 69818,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (1220 chars)
Chunk ID: 16b5e4
Wall time: 1.3261 seconds
Process exited with code 0
Original token count: 279
Output:
shape=0 variant=eager tflops=3.693 gbps=20.450 ms=0.209
shape=0 variant=compiled tflops=3.147 gbps=17.426 ms=0.245
shape=0 variant=sota tflops=3.742 gbps=20.720 ms=0.206
shape=0 variant=solution tflops=23.080 gbps=127.816 ms=0.033
shape=0 solution_peak_fraction=0.1154
shape=1 variant=eager tflops=13.949 gbps=36.381 ms=0.221
shape=1 variant=compiled tflops=11.281 gbps=29.424 ms=0.273
shape=1 variant=sota tflops=13.961 gbps=36.412 ms=0.221
shape=1 variant=solution tflops=53.328 gbps=139.089 ms=0.058
shape=1 solution_peak_fraction=0.2666
shape=2 variant=eager tflops=26.330 gbps=54.387 ms=0.263
shape=2 variant=compiled tflops=23.088 gbps=47.691 ms=0.300
shape=2 variant=sota tflops=26.852 gbps=55.465 ms=0.258
shape=2 variant=solution tflops=125.367 gbps=258.961 ms=0.055
shape=2 solution_peak_fraction=0.6268
shape=3 variant=eager tflops=6.501 gbps=25.220 ms=0.142
shape=3 variant=compiled tflops=5.158 gbps=20.010 ms=0.179
shape=3 variant=sota tflops=6.579 gbps=25.524 ms=0.141
shape=3 variant=solution tflops=40.253 gbps=156.167 ms=0.023
shape=3 solution_peak_fraction=0.2013
peak_fraction: 0.2496
RESULT: OK
assistant
exec_command
args
{
  "cmd": "uv run python benchmark.py",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (113 chars)
Chunk ID: cc959f
Wall time: 1.0009 seconds
Process running with session ID 43421
Original token count: 0
Output:
assistant
write_stdin
args
{
  "session_id": 43421,
  "chars": "",
  "yield_time_ms": 1000,
  "max_output_tokens": 10000
}
tool
stdout (1220 chars)
Chunk ID: 60a353
Wall time: 1.8455 seconds
Process exited with code 0
Original token count: 279
Output:
shape=0 variant=eager tflops=3.660 gbps=20.270 ms=0.211
shape=0 variant=compiled tflops=3.117 gbps=17.263 ms=0.247
shape=0 variant=sota tflops=3.698 gbps=20.478 ms=0.208
shape=0 variant=solution tflops=22.615 gbps=125.236 ms=0.034
shape=0 solution_peak_fraction=0.1131
shape=1 variant=eager tflops=13.303 gbps=34.695 ms=0.232
shape=1 variant=compiled tflops=12.021 gbps=31.353 ms=0.256
shape=1 variant=sota tflops=14.101 gbps=36.778 ms=0.219
shape=1 variant=solution tflops=69.333 gbps=180.831 ms=0.044
shape=1 solution_peak_fraction=0.3467
shape=2 variant=eager tflops=26.362 gbps=54.454 ms=0.263
shape=2 variant=compiled tflops=23.083 gbps=47.681 ms=0.300
shape=2 variant=sota tflops=26.942 gbps=55.651 ms=0.257
shape=2 variant=solution tflops=126.097 gbps=260.468 ms=0.055
shape=2 solution_peak_fraction=0.6305
shape=3 variant=eager tflops=6.489 gbps=25.175 ms=0.143
shape=3 variant=compiled tflops=5.217 gbps=20.240 ms=0.177
shape=3 variant=sota tflops=6.602 gbps=25.612 ms=0.140
shape=3 variant=solution tflops=39.974 gbps=155.087 ms=0.023
shape=3 solution_peak_fraction=0.1999
peak_fraction: 0.2651
RESULT: OK
assistant
exec_command
args
{
  "cmd": "uv run pytest",
  "workdir": "/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm",
  "yield_time_ms": 1000,
  "max_output_tokens": 12000
}
tool
stdout (419 chars)
Chunk ID: 7b5648
Wall time: 0.0000 seconds
Process exited with code 5
Original token count: 79
Output:
============================= test session starts ==============================
platform linux -- Python 3.11.15, pytest-9.0.3, pluggy-1.6.0
rootdir: /home/infatoshi/cuda/KernelBench-Hard
configfile: pyproject.toml
collected 0 items

============================ no tests ran in 0.00s =============================
assistant
Implemented [solution.py](/home/infatoshi/cuda/KernelBench-Hard/problems/10_patch_embed_conv3d_gemm/solution.py) with custom Triton BF16 tensor-core kernels. It keeps the strict `conv.weight` state_dict interface and avoids the banned PyTorch conv/GEMM helpers. Verification: - `uv run python check.py` -> `PASS` - `uv run ruff check . --fix` -> passed - `uv run pytest` -> no tests collected, pytest exits `5` - Latest `uv run python benchmark.py`: - shape 0: `22.615 TFLOPS`, `0.034 ms` - shape 1: `69.333 TFLOPS`, `0.044 ms` - shape 2: `126.097 TFLOPS`, `0.055 ms` - shape 3: `39.974 TFLOPS`, `0.023 ms` - `peak_fraction: 0.2651`, `RESULT: OK`
system
task_complete