Run 01a02032 · KernelIndex

Primary measurement

79.9µsmean

Rank 2 in its comparison group · source-native comparison · observed 2025-10-16

Compare with #1 →

17.15× reference

Identity

implementationclaude-opus-4-1_cuda_462ef5

projectclaude-opus-4-1-20250805

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadbatch_size = 14418 · bf16

comparison keysha256:110e34009428b890…

sourceFlashInfer-Bench

external idtrace/claude-opus-4-1_cuda_462ef5/9595903c-68c2-4bd2-bdbf-0bc1c6dcb8af

sha256:90c1bf0b55c44fc0ef9db38…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.03125

max relative error0.007751937955617905

resultpassed

Workload

batch_size14418

weightbf16 [4096]

residualbf16 [14418, 4096]

hidden_statesbf16 [14418, 4096]

definition comparatorsol_execbench_eval

Measurements

latency · mean79.9 µs

Protocol

harnessflashinfer-bench

timerharness_reported

primaryStatisticmean

correctnessReferencedefinition reference implementation

comparabilityFamilyflashinfer_bench_trace

Environment

gpuNVIDIA B200 (unknown)

cudaToolkit12.8

frameworkpytorch 2.8.0+cu128

Artifacts

logssha256:6aca6ba0c4c966cb… · text/plain · unavailable

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": {
        "latencyNs": {
          "mean": 79874
        },
        "primaryStatistic": "mean"
      },
      "evidence": {
        "logs": {
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        }
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      "observedAt": "2025-10-16T12:08:04.523Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.03125,
        "maximumRelativeError": 0.007751937955617905
      },
      "sourceNative": {
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        "metrics": {
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          "speedup_factor": 17.148864550266914,
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        },
        "benchmark": "fused_add_rmsnorm_h4096"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:bfca7b0b96836f9261a62634df9a871d083077b75cca93f7a936c7a692cf4a55",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
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    },
    "metadata": {
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    },
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      },
      "measurement": {
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        "primaryStatistic": "mean"
      },
      "comparability": {
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      }
    },
    "metadata": {
      "name": "flashinfer-bench-trace",
      "title": "FlashInfer-Bench trace harness"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
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  "environment": {
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    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}

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Published 2026-08-20 · FlashInfer-Bench · Apache-2.0All results for Fused add RMSNorm h4096 →JSON

claude-opus-4-1 / cuda462ef5