Run 01a00b1e · KernelIndex

Primary measurement

501.0µsmean

Rank 1 in its comparison group · source-native comparison · observed 2025-10-21

49.92× reference

Identity

implementationflashinfer_wrapper_acea60

projectFlashInfer-Bench baselines

revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c

workloadtotal_q = 12251 · total_kv = 12251 · len_indptr = 28 · bf16

comparison keysha256:02c5e83dc860053a…

sourceFlashInfer-Bench

external idtrace/flashinfer_wrapper_acea60/5c51d2e8-4c3e-42db-8f9c-73c09ab81e29

sha256:3d6416b4227d5a4fabbfad2…

Correctness

comparatorflashinfer_bench_eval

max absolute error0.015625

max relative error19475.021484375

resultpassed

Workload

total_q12251

total_kv12251

len_indptr28

kbf16 [12251, 4, 128]

qbf16 [12251, 32, 128]

vbf16 [12251, 4, 128]

kv_indptrint32 [28]

qo_indptrint32 [28]

definition comparatorsol_execbench_eval

Measurements

latency · mean501.0 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

No artifacts published with this run.

Replications and notes

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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": 500955
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2025-10-21T07:43:44.012Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.015625,
        "maximumRelativeError": 19475.021484375
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.5009552728440834,
          "speedup_factor": 49.91536515773283,
          "reference_latency_ms": 25.0053653717041
        },
        "benchmark": "gqa_ragged_prefill_causal_h32_kv4_d128"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:fdfc57182bad4a1e06ecc08b027d8cf1cdc8b989ea9e7f850d18474789c3c717",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:452ce1e63c7ab9bcc1c3b1bfd57b2feee58c67c076c06a96f990075733071c04"
    },
    "metadata": {
      "name": "sol-trace-gqa-ragged-prefill-causal-h32-kv4-d128-5c51d2e8",
      "title": "flashinfer_wrapper_acea60 · gqa_ragged_prefill_causal_h32_kv4_d128"
    },
    "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"
  }
}

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Published 2026-08-16 · FlashInfer-Bench · Apache-2.0All results for GQA ragged prefill causal h32 kv4 d128 →JSON

flashinfer / wrapperacea60