Run 01a03f0e · KernelIndex

Primary measurement

57.6ms±0.23 · mean of 100

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

Compare with #1 →

max ms 63.5 · min ms 56.7 · std ms 1.16 · mean ms 57.6

Identity

implementationtorch.compile (inductor)

projectPyTorch

revisionunknown

workloadbatch_size = 10 · input_size = 128 · hidden_size = 256 · sequence_length = 512 · fp32

comparison keysha256:71141300fe95bf84…

sourceKernelBench baseline timings

external idH100_PCIe_LambdaLabs/torch-compile-inductor/level3/38_LSTMBidirectional.py

sha256:5bd99a0fdf3ebbde19960a5…

Correctness

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

Workload

batch_size10

input_size128

hidden_size256

sequence_length512

input_1fp32 [10, 512, 128]

input_2fp32 [12, 10, 256]

input_3fp32 [12, 10, 256]

definition comparatornot_asserted

Measurements

latency · max63.5 ms · n=100

latency · mean57.6 ms · n=100

latency · min56.7 ms · n=100

latency · std1.16 ms

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

No attestations yet.

Community attestations. They never change the evidence level; only a KernelIndex-controlled rerun does.

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Canonical manifest

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{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "samples": 100,
        "latencyNs": {
          "mean": 57600000,
          "maximum": 63500000,
          "minimum": 56700000,
          "confidence95": [
            57372640,
            57827360
          ]
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2026-03-05T08:38:15.000Z",
      "measurements": [
        {
          "unit": "ns",
          "value": 1160000,
          "metric": "latency",
          "statistic": "std"
        }
      ],
      "sourceNative": {
        "source": "kernelbench",
        "metrics": {
          "max_ms": 63.5,
          "min_ms": 56.7,
          "std_ms": 1.16,
          "mean_ms": 57.6
        },
        "benchmark": "H100_PCIe_LambdaLabs/baseline_time_torch_compile_inductor_default.json",
        "externalId": "H100_PCIe_LambdaLabs/torch-compile-inductor/level3/38_LSTMBidirectional.py"
      },
      "protocolDigest": "sha256:547725b033a9911eae0c5ac362344a85aed824894ed4ab476af945b9bb491ea6",
      "workloadDigest": "sha256:98fa6a8392aaa55fb6f944ca5134e4fba220e83eef08372c3dae5c06c0e16d6b",
      "environmentDigest": "sha256:89f9b28b06758f22a1df331fea58bfde2c9cc0f3627d1829509743ea538f0011",
      "implementationDigest": "sha256:c4269f3467fc01d3fa8f1fd2137cca81ba604eeda1b41d9b6dec7f0fe2333e9f"
    },
    "metadata": {
      "name": "kernelbench-h100-pcie-lambdalabs-torch-compile-inductor-l3-38-lstmbidirectional",
      "title": "LSTMBidirectional · 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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Published 2026-08-26 · KernelBench baseline timings · MITAll results for LSTMBidirectional →JSON