Run 01a02032 · KernelIndex

Primary measurement

51.2µsmean

Rank 5 in its comparison group · source-native comparison · observed 2025-10-16

Compare with #1 →

22.58× reference

Identity

implementationclaude-opus-4-1_cuda_8eba35

projectclaude-opus-4-1-20250805

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadbatch_size = 12383 · bf16

comparison keysha256:1eb1efe36e3e9df4…

sourceFlashInfer-Bench

external idtrace/claude-opus-4-1_cuda_8eba35/5ede385e-9b04-4b49-903f-375a5180d815

sha256:5568fb3856d5947145fa660…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.03125

max relative error0.0078125

resultpassed

Workload

batch_size12383

weightbf16 [2048]

residualbf16 [12383, 2048]

hidden_statesbf16 [12383, 2048]

definition comparatorsol_execbench_eval

Measurements

latency · mean51.2 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

logssha256:7fbe8d82dc75f8fb… · 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": 51152
        },
        "primaryStatistic": "mean"
      },
      "evidence": {
        "logs": {
          "uri": "kernelindex:artifact/sha256:7fbe8d82dc75f8fba4f10b81ff034b5a969de5898b40cb0b4fcf63de42e01a13",
          "digest": "sha256:7fbe8d82dc75f8fba4f10b81ff034b5a969de5898b40cb0b4fcf63de42e01a13"
        }
      },
      "observedAt": "2025-10-16T12:06:34.269Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.03125,
        "maximumRelativeError": 0.0078125
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.0511517755201838,
          "speedup_factor": 22.57987297725065,
          "reference_latency_ms": 1.1550005938065895
        },
        "benchmark": "fused_add_rmsnorm_h2048"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:288d7fd6afd43758c9f8d50bda5a3b8405f769006b3e268bbde406150b7af213",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:a543ad0cff7785996cca0a9c98023a4177e0d678142d79748f663c0059de2fe4"
    },
    "metadata": {
      "name": "sol-trace-fused-add-rmsnorm-h2048-5ede385e",
      "title": "claude-opus-4-1_cuda_8eba35 · fused_add_rmsnorm_h2048"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "protocol": {
    "kind": "BenchmarkProtocol",
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      },
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        "comparator": "flashinfer_bench_eval"
      },
      "measurement": {
        "timer": "harness_reported",
        "primaryStatistic": "mean"
      },
      "comparability": {
        "family": "flashinfer_bench_trace"
      }
    },
    "metadata": {
      "name": "flashinfer-bench-trace",
      "title": "FlashInfer-Bench trace harness"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "environment": {
    "kind": "ExecutionEnvironment",
    "spec": {
      "hardware": {
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        "product": "NVIDIA B200",
        "architecture": "unknown"
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      "title": "NVIDIA B200 (trace-reported software)"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}

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Published 2026-08-20 · FlashInfer-Bench · Apache-2.0All results for Fused add RMSNorm h2048 →JSON

claude-opus-4-1 / cuda8eba35