Run 01a02032 · KernelIndex

Primary measurement

9.48µsmean

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

Compare with #1 →

127.16× reference

Identity

implementationclaude-opus-4-1_cuda_462ef5

projectclaude-opus-4-1-20250805

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadbatch_size = 1 · bf16

comparison keysha256:8834dc0d17a7fa35…

sourceFlashInfer-Bench

external idtrace/claude-opus-4-1_cuda_462ef5/146cc899-3cd6-4713-a85f-0cca97509a48

sha256:a0b57232e57211301f65f9a…

Correctness

comparatorflashinfer_bench_eval

max absolute error0

max relative error0

resultpassed

Workload

batch_size1

weightbf16 [4096]

residualbf16 [1, 4096]

hidden_statesbf16 [1, 4096]

definition comparatorsol_execbench_eval

Measurements

latency · mean9.48 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

logssha256:12128a36e093cbe8… · text/plain · unavailable

Replications and notes

No attestations yet.

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

Add a reproduction or note

Canonical manifest

Show manifest

{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "mean": 9478
        },
        "primaryStatistic": "mean"
      },
      "evidence": {
        "logs": {
          "uri": "kernelindex:artifact/sha256:12128a36e093cbe820ae445b7fe6d135be218bb0bdbe03402b9fea55b7de3bac",
          "digest": "sha256:12128a36e093cbe820ae445b7fe6d135be218bb0bdbe03402b9fea55b7de3bac"
        }
      },
      "observedAt": "2025-10-16T12:07:35.960Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0,
        "maximumRelativeError": 0
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.009477674929526907,
          "speedup_factor": 127.15962554208083,
          "reference_latency_ms": 1.2051775950482089
        },
        "benchmark": "fused_add_rmsnorm_h4096"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:d5d67d68a96bfa5257744758eb14f573d92c580b82447e0f503ad73f48534a5f",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:01094ce2257398bee478b6ac09572caf2d922dd39993f749a5f3bd6bf5d5847b"
    },
    "metadata": {
      "name": "sol-trace-fused-add-rmsnorm-h4096-146cc899",
      "title": "claude-opus-4-1_cuda_462ef5 · fused_add_rmsnorm_h4096"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "protocol": {
    "kind": "BenchmarkProtocol",
    "spec": {
      "harness": {
        "name": "flashinfer-bench",
        "repository": "https://github.com/flashinfer-ai/flashinfer-bench"
      },
      "correctness": {
        "reference": "definition reference implementation",
        "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": {
        "vendor": "nvidia",
        "product": "NVIDIA B200",
        "architecture": "unknown"
      },
      "software": {
        "framework": {
          "name": "pytorch",
          "version": "2.8.0+cu128"
        },
        "libraries": {
          "triton": "3.4.0"
        },
        "cudaToolkit": "12.8"
      }
    },
    "metadata": {
      "name": "sol-trace-nvidia-b200-2-8-0-cu128-3-4-0-12-8",
      "title": "NVIDIA B200 (trace-reported software)"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}

Cite this record (permalink, digest, access date)

Report an issue with this run

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

claude-opus-4-1 / cuda462ef5