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torch.compile (inductor)

Tall skinny matrix multiplication · m = 32768 · n = 32 · fp32 · run 01a03f0e-f843…
●passedReported evidence

Not re-observed recently.

Primary measurement
4.33ms±0.04 · mean of 100

Rank 2 in its comparison group · source-native comparison · observed 2026-03-05

Compare with #1 →

max ms 4.49 · min ms 3.57 · std ms 0.189 · mean ms 4.33

Identity
implementationtorch.compile (inductor)
projectPyTorch
revisionunknown
workloadm = 32768 · n = 32 · fp32
comparison keysha256:2c8241aeffae2721…
sourceKernelBench baseline timings
external idH100_PCIe_LambdaLabs/torch-compile-inductor/level1/9_Tall_skinny_matrix_multiplication_.py
sha256:dc8fa1acd175bf7d6c60a7d…

Correctness

Marked passed by the source; the correctness policy was not published.

Workload

m32768
n32
afp32 [32768, 32]
bfp32 [32, 32768]
definition comparatornot_asserted

Measurements

latency · max4.49 ms · n=100
latency · mean4.33 ms · n=100
latency · min3.57 ms · n=100
latency · std189.0 µs

Protocol

harnessKernelBench timing scripts
timercuda_events
primaryStatisticmean
comparabilityFamilykernelbench_baseline_timing

Environment

gpuNVIDIA H100 (sm_90)

Artifacts

No artifacts published with this run.

Replications and notes

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Canonical manifest

Show manifest
{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "samples": 100,
        "latencyNs": {
          "mean": 4330000,
          "maximum": 4490000,
          "minimum": 3570000,
          "confidence95": [
            4292956,
            4367044
          ]
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2026-03-05T08:38:15.000Z",
      "measurements": [
        {
          "unit": "ns",
          "value": 189000,
          "metric": "latency",
          "statistic": "std"
        }
      ],
      "sourceNative": {
        "source": "kernelbench",
        "metrics": {
          "max_ms": 4.49,
          "min_ms": 3.57,
          "std_ms": 0.189,
          "mean_ms": 4.33
        },
        "benchmark": "H100_PCIe_LambdaLabs/baseline_time_torch_compile_inductor_default.json",
        "externalId": "H100_PCIe_LambdaLabs/torch-compile-inductor/level1/9_Tall_skinny_matrix_multiplication_.py"
      },
      "protocolDigest": "sha256:547725b033a9911eae0c5ac362344a85aed824894ed4ab476af945b9bb491ea6",
      "workloadDigest": "sha256:da79074e772998ebd75fa6199576695f03fdbe89faff6c0188cc07c81184b163",
      "environmentDigest": "sha256:89f9b28b06758f22a1df331fea58bfde2c9cc0f3627d1829509743ea538f0011",
      "implementationDigest": "sha256:1c176dd68e774f01d3c9cfe475eeffa94d02aa4a22d0fe786c5b65e4d2c5295c"
    },
    "metadata": {
      "name": "kernelbench-h100-pcie-lambdalabs-torch-compile-inductor-l1-9-tall-skinny-matrix-multiplication",
      "title": "Tall skinny matrix multiplication · torch.compile (inductor) · Lambda Labs"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "protocol": {
    "kind": "BenchmarkProtocol",
    "spec": {
      "harness": {
        "name": "KernelBench timing scripts",
        "repository": "https://github.com/ScalingIntelligence/KernelBench"
      },
      "measurement": {
        "timer": "cuda_events",
        "primaryStatistic": "mean"
      },
      "comparability": {
        "notes": "Mean of 100 timed forward passes (CUDA events, warm-up excluded) of the reference module on fixed inputs; the 95% interval is the mean's, from the reported standard deviation. The upstream JSON records no torch or CUDA version. Comparable only within one problem and one timing host.",
        "family": "kernelbench_baseline_timing"
      }
    },
    "metadata": {
      "name": "kernelbench-timing-v1",
      "title": "KernelBench baseline timing"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "environment": {
    "kind": "ExecutionEnvironment",
    "spec": {
      "hardware": {
        "vendor": "nvidia",
        "product": "NVIDIA H100",
        "formFactor": "PCIe",
        "architecture": "sm_90"
      },
      "software": {}
    },
    "metadata": {
      "name": "kernelbench-h100-pcie-lambdalabs",
      "title": "KernelBench host · H100 PCIe (Lambda Labs)"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}
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