Run 01a02032 · KernelIndex

Primary measurement

8.65µsmean

Rank 3 in its comparison group · source-native comparison · observed 2025-10-16

Compare with #1 →

128.54× reference

Identity

implementationclaude-opus-4-1_cuda_462ef5

projectclaude-opus-4-1-20250805

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadbatch_size = 7 · bf16

comparison keysha256:d66ec3a67f090534…

sourceFlashInfer-Bench

external idtrace/claude-opus-4-1_cuda_462ef5/9f5150a0-744c-4699-a970-f15b0ea14a38

sha256:377077d6e0f6623f323bd45…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.015625

max relative error0.007575757801532745

resultpassed

Workload

batch_size7

weightbf16 [4096]

residualbf16 [7, 4096]

hidden_statesbf16 [7, 4096]

definition comparatorsol_execbench_eval

Measurements

latency · mean8.65 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

logssha256:54c1b4ab90de1665… · 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": 8652
        },
        "primaryStatistic": "mean"
      },
      "evidence": {
        "logs": {
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        }
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      "observedAt": "2025-10-16T12:07:26.818Z",
      "correctness": {
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        "maximumRelativeError": 0.007575757801532745
      },
      "sourceNative": {
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        "benchmark": "fused_add_rmsnorm_h4096"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:2741b4c7ed07e894f02f6b930878415f34b45d7f3dc6a4deda98e592ab3d04ba",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
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    },
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        "primaryStatistic": "mean"
      },
      "comparability": {
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    },
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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