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PyTorch eager

Batched matrix multiplication · k = 1024 · m = 512 · n = 2048 · batch_size = 128 · fp32 · run 01a03f0e-f6f1…
●passedReported evidence

Not re-observed recently.

Primary measurement
8.17ms±0.03 · mean of 100

Rank 1 in its comparison group · source-native comparison · observed 2026-03-05

max ms 8.75 · min ms 7.93 · std ms 0.142 · mean ms 8.17

Identity
implementationPyTorch eager
projectPyTorch
revisionunknown
workloadk = 1024 · m = 512 · n = 2048 · batch_size = 128 · fp32
comparison keysha256:c7425205c43d27e7…
sourceKernelBench baseline timings
external idH100_PCIe_LambdaLabs/torch/level1/3_Batched_matrix_multiplication.py
sha256:bdde59d33162a155899b571…

Correctness

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

Workload

k1024
m512
n2048
batch_size128
afp32 [128, 512, 1024]
bfp32 [128, 1024, 2048]
definition comparatornot_asserted

Measurements

latency · max8.75 ms · n=100
latency · mean8.17 ms · n=100
latency · min7.93 ms · n=100
latency · std142.0 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": 8170000,
          "maximum": 8750000,
          "minimum": 7930000,
          "confidence95": [
            8142168,
            8197832
          ]
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2026-03-05T08:38:15.000Z",
      "measurements": [
        {
          "unit": "ns",
          "value": 142000,
          "metric": "latency",
          "statistic": "std"
        }
      ],
      "sourceNative": {
        "source": "kernelbench",
        "metrics": {
          "max_ms": 8.75,
          "min_ms": 7.93,
          "std_ms": 0.142,
          "mean_ms": 8.17
        },
        "benchmark": "H100_PCIe_LambdaLabs/baseline_time_torch.json",
        "externalId": "H100_PCIe_LambdaLabs/torch/level1/3_Batched_matrix_multiplication.py"
      },
      "protocolDigest": "sha256:547725b033a9911eae0c5ac362344a85aed824894ed4ab476af945b9bb491ea6",
      "workloadDigest": "sha256:5702c710a1e592636f793fe7a8ceb81fe06fbaa800ce002e17fd97674613f265",
      "environmentDigest": "sha256:89f9b28b06758f22a1df331fea58bfde2c9cc0f3627d1829509743ea538f0011",
      "implementationDigest": "sha256:90cfc31d7b64a7d263ba5920a7961e37a59b7bc9cfc7ac45bca287c407a3e3eb"
    },
    "metadata": {
      "name": "kernelbench-h100-pcie-lambdalabs-torch-l1-3-batched-matrix-multiplication",
      "title": "Batched matrix multiplication · PyTorch eager · 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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