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gpt-5-2025-08-07 / cuda351c51

GEMM n256 k7168 · m = 14 · fp16 · run 01a02032-55bb…
●passedReported evidence

Not re-observed recently.

Primary measurement
883.7µsmean

Rank 7 in its comparison group · source-native comparison · observed 2025-10-16

Compare with #1 →

0.17× reference

Identity
implementationgpt-5-2025-08-07_cuda_351c51
projectgpt-5-2025-08-07
revisionda915083d4c7c5e61aa3005e3d17ae488e0fc71c
workloadm = 14 · fp16
comparison keysha256:ee6718cacbfdb6e9…
sourceFlashInfer-Bench
external idtrace/gpt-5-2025-08-07_cuda_351c51/3c3312fb-b5c2-41f0-b455-9d03ef097fdc
sha256:e5b83e0621c0550bae28a55…

Correctness

comparatorflashinfer_bench_eval
max absolute error0.25
max relative error0.11211711168289185
resultpassed

Workload

m14
afp16 [14, 7168]
bfp16 [256, 7168]
definition comparatorsol_execbench_eval

Measurements

latency · mean883.7 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

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Canonical manifest

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{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "mean": 883690
        },
        "primaryStatistic": "mean"
      },
      "observedAt": "2025-10-16T01:16:56.785Z",
      "correctness": {
        "comparator": "sol_execbench_eval",
        "maximumAbsoluteError": 0.25,
        "maximumRelativeError": 0.11211711168289185
      },
      "sourceNative": {
        "source": "flashinfer-bench",
        "metrics": {
          "latency_ms": 0.8836900702229252,
          "speedup_factor": 0.16804276224487932,
          "reference_latency_ms": 0.14849772036863174
        },
        "benchmark": "gemm_n256_k7168"
      },
      "protocolDigest": "sha256:7d44d206ad086b4bece35ce31f6531ebb11f07e0d9dcfb74c75be86d3ec02095",
      "workloadDigest": "sha256:950f0522e3bd2fe764910564b0f1e619ab3641e8023fc4f3b6fee7cd7c7bcaea",
      "environmentDigest": "sha256:f4292a8be127b7230cd3995c1d605fb6c644e2c2f94566e1d28cc1be766ca5d5",
      "implementationDigest": "sha256:8ed23b465ce3106ec0dadb162a9b7cff7b75ef6ef50fe7c233aa3b55819ddc45"
    },
    "metadata": {
      "name": "sol-trace-gemm-n256-k7168-3c3312fb",
      "title": "gpt-5-2025-08-07_cuda_351c51 · gemm_n256_k7168"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "protocol": {
    "kind": "BenchmarkProtocol",
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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"
  },
  "environment": {
    "kind": "ExecutionEnvironment",
    "spec": {
      "hardware": {
        "vendor": "nvidia",
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        "architecture": "unknown"
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      "software": {
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          "version": "2.8.0+cu128"
        },
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        },
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      }
    },
    "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 2026-08-20 · FlashInfer-Bench · Apache-2.0All results for GEMM n256 k7168 →JSON