Liger

{
  "run": {
    "kind": "BenchmarkRun",
    "spec": {
      "status": "passed",
      "timing": {
        "latencyNs": {
          "median": 7958673
        },
        "primaryStatistic": "median"
      },
      "observedAt": "2026-06-15T22:13:03.000Z",
      "measurements": [
        {
          "unit": "ns",
          "value": 7958359,
          "metric": "latency",
          "statistic": "p20"
        },
        {
          "unit": "ns",
          "value": 7958960,
          "metric": "latency",
          "statistic": "p80"
        }
      ],
      "sourceNative": {
        "source": "liger-kernel-bench",
        "metrics": {
          "ms_20": 7.9583587646484375,
          "ms_50": 7.958672523498535,
          "ms_80": 7.958960056304932
        },
        "benchmark": "megatron_cross_entropy/backward",
        "externalId": "megatron_cross_entropy/backward/liger/nvidia-h100-80gb-hbm3/batch4-seq2048-vocab131072-bf16/2026-06-15-22-13-03"
      },
      "protocolDigest": "sha256:080e6e66e4ec75a131aa0c9121c74b8e8eed64e7b6d621d567c6a28f79548be8",
      "workloadDigest": "sha256:02d31ca14b489b3d3e61d5f1853d5de2fe30be5cd0308cef9704156848753d2e",
      "environmentDigest": "sha256:2750ae381d6de582f1eb6b9008e0987463d19ede8af127d97d76c5ae09121393",
      "implementationDigest": "sha256:f8317f62e3f6564e5d132fe59b9d9d97b424c5b6e9f91d92915e8d8007681337"
    },
    "metadata": {
      "name": "liger-megatron-cross-entropy-backward-liger-nvidia-h100-80gb-hbm3-batch4-seq2048-vocab131072-bf16-20",
      "title": "Vocab-parallel cross-entropy, Megatron layout · liger · backward",
      "labels": {
        "liger_version": "0.8.0"
      }
    },
    "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 backward pass of the module output given a random upstream gradient, 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-backward",
      "title": "Liger benchmark harness · backward pass"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  },
  "environment": {
    "kind": "ExecutionEnvironment",
    "spec": {
      "hardware": {
        "vendor": "nvidia",
        "product": "NVIDIA H100",
        "formFactor": "80GB HBM3",
        "architecture": "sm_90"
      },
      "software": {}
    },
    "metadata": {
      "name": "liger-bench-nvidia-h100-80gb-hbm3",
      "title": "Liger benchmark host · H100 80GB HBM3"
    },
    "apiVersion": "kernelindex.dev/v1alpha1"
  }
}