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Liger

LayerNorm · rows = 4096 · hidden = 4096 · fp32 · run 01a016ad-c1e3…
●passedReported evidence

Not re-observed recently.

Primary measurement
284.7µsmedian

Rank 1 in its comparison group · source-native comparison · observed 2024-09-03

ms 20 0.27955201268196106 · ms 50 0.2847039997577667 · ms 80 0.2908479869365692

Identity
implementationLiger
projectLiger-Kernel
revisionunknown
workloadrows = 4096 · hidden = 4096 · fp32
comparison keysha256:5ffe7f2a160acebc…
sourceLiger-Kernel benchmarks
external idlayer_norm/full/liger/nvidia-a100-sxm4-80gb/hidden4096-rows4096-fp32/2024-09-03-15-39-19
sha256:6cc57bb57ff3fe056c162c4…

Correctness

Marked passed by the source; the correctness policy was not published.

Workload

rows4096
hidden4096
xfp32 [4096, 4096]
biasfp32 [4096]
weightfp32 [4096]
definition comparatornot_asserted

Measurements

latency · median284.7 µs
latency · p20279.6 µs
latency · p80290.8 µs

Protocol

harnessLiger-Kernel benchmark scripts
timercuda_events
primaryStatisticmedian
comparabilityFamilyliger_kernel_bench

Environment

gpuNVIDIA A100 (sm_80)

Artifacts

No artifacts published with this run.

Replications and notes

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Canonical manifest

Show manifest
{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "median": 284704
        },
        "primaryStatistic": "median"
      },
      "observedAt": "2024-09-03T15:39:19.000Z",
      "measurements": [
        {
          "unit": "ns",
          "value": 279552,
          "metric": "latency",
          "statistic": "p20"
        },
        {
          "unit": "ns",
          "value": 290848,
          "metric": "latency",
          "statistic": "p80"
        }
      ],
      "sourceNative": {
        "source": "liger-kernel-bench",
        "metrics": {
          "ms_20": 0.27955201268196106,
          "ms_50": 0.2847039997577667,
          "ms_80": 0.2908479869365692
        },
        "benchmark": "layer_norm/full",
        "externalId": "layer_norm/full/liger/nvidia-a100-sxm4-80gb/hidden4096-rows4096-fp32/2024-09-03-15-39-19"
      },
      "protocolDigest": "sha256:5b02ee9a2140fbc6fcc1c89800f6c177ba22718c8897cb532bf0ba91867c1e58",
      "workloadDigest": "sha256:c18a03ab80eee5adfcd97f582de99ab98c459be25807cde44b48ac623ad3af23",
      "environmentDigest": "sha256:90c9e2764222f592477cfccf3373519add5a1b881563956ad058c4f99e41b6b9",
      "implementationDigest": "sha256:77931b8372d01c2e92fd763373b2fdab449b85949aad6fcfa15bee3810319f2b"
    },
    "metadata": {
      "name": "liger-layer-norm-full-liger-nvidia-a100-sxm4-80gb-hidden4096-rows4096-fp32-2024-09-03-15-39-19",
      "title": "LayerNorm · liger · full",
      "labels": {
        "liger_version": "0.2.1"
      }
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "protocol": {
    "kind": "BenchmarkProtocol",
    "spec": {
      "harness": {
        "name": "Liger-Kernel benchmark scripts",
        "repository": "https://github.com/linkedin/Liger-Kernel"
      },
      "measurement": {
        "timer": "cuda_events",
        "primaryStatistic": "median"
      },
      "comparability": {
        "notes": "Timed: the forward pass plus the backward pass, via triton.testing.do_bench with quantiles 0.5/0.2/0.8 (median with p20/p80 spread). The upstream CSV records no CUDA, driver, or torch version; the Liger release rides each run's labels. Comparable only within one kernel, workload, timed pass, and GPU.",
        "family": "liger_kernel_bench"
      }
    },
    "metadata": {
      "name": "liger-bench-do-bench-full",
      "title": "Liger benchmark harness · full pass"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "environment": {
    "kind": "ExecutionEnvironment",
    "spec": {
      "hardware": {
        "vendor": "nvidia",
        "product": "NVIDIA A100",
        "formFactor": "SXM4-80GB",
        "architecture": "sm_80"
      },
      "software": {}
    },
    "metadata": {
      "name": "liger-bench-nvidia-a100-sxm4-80gb",
      "title": "Liger benchmark host · A100-SXM4-80GB"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}
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Published 2026-08-18 · Liger-Kernel benchmarks · BSD-2-ClauseAll results for LayerNorm →JSON