Liger
GroupNorm · batch = 128 · hidden = 512 · channels = 512 · channels_per_group = 4 · fp32 · run 01a0202b-2349…
●passedReported evidence
Not re-observed recently.
Primary measurement
63.5µsmedian
Rank 1 in its comparison group · source-native comparison · observed 2026-02-28
ms 20 0.06345599889755249 · ms 50 0.06351999938488007 · ms 80 0.06550399959087372
Identity
implementationLiger
projectLiger-Kernel
revisionunknown
workloadbatch = 128 · hidden = 512 · channels = 512 · channels_per_group = 4 · fp32
comparison keysha256:ccc3fc7646caba82…
sourceLiger-Kernel benchmarks
external idgroup_norm/forward/liger/nvidia-b200/batch128-channels512-channels_per_group4-hidden512-fp32/2026-02-28-00-23-15
sha256:a797541ba28b23d720962e4…
Correctness
Marked passed by the source; the correctness policy was not published.
Workload
batch128
hidden512
channels512
channels_per_group4
xfp32 [128, 512, 512]
biasfp32 [512]
weightfp32 [512]
definition comparatornot_asserted
Measurements
latency · median63.5 µs
latency · p2063.5 µs
latency · p8065.5 µs
Protocol
harnessLiger-Kernel benchmark scripts
timercuda_events
primaryStatisticmedian
comparabilityFamilyliger_kernel_bench
Environment
gpuNVIDIA B200 (sm_100)
Artifacts
No artifacts published with this run.
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
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{
"run": {
"kind": "BenchmarkRun",
"spec": {
"status": "passed",
"timing": {
"latencyNs": {
"median": 63520
},
"primaryStatistic": "median"
},
"observedAt": "2026-02-28T00:23:15.000Z",
"measurements": [
{
"unit": "ns",
"value": 63456,
"metric": "latency",
"statistic": "p20"
},
{
"unit": "ns",
"value": 65504,
"metric": "latency",
"statistic": "p80"
}
],
"sourceNative": {
"source": "liger-kernel-bench",
"metrics": {
"ms_20": 0.06345599889755249,
"ms_50": 0.06351999938488007,
"ms_80": 0.06550399959087372
},
"benchmark": "group_norm/forward",
"externalId": "group_norm/forward/liger/nvidia-b200/batch128-channels512-channels_per_group4-hidden512-fp32/2026-02-28-00-23-15"
},
"protocolDigest": "sha256:a79eaf4df66c97c6adc1fb2d09df78682155d1ea86652ae0b70199875bde7747",
"workloadDigest": "sha256:d67501d8e3c8c88c68187b55ee89e7d7a8b184adf25748b31fdd9eb49f32ee36",
"environmentDigest": "sha256:ad459e643ef802f7008f1fa8915785c905d05abbfdb5eb0328be214f8d9f3a8b",
"implementationDigest": "sha256:eb2a222d25c6ff2d332e4565e3bd0f7d93c411a4634a9864144cc701fcca7c69"
},
"metadata": {
"name": "liger-group-norm-forward-liger-nvidia-b200-batch128-channels512-channels-per-group4-hidden512-fp32-2",
"title": "GroupNorm · liger · forward",
"labels": {
"liger_version": "0.7.0"
}
},
"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 module forward 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-forward",
"title": "Liger benchmark harness · forward pass"
},
"apiVersion": "kernelindex.dev/v1alpha1"
},
"environment": {
"kind": "ExecutionEnvironment",
"spec": {
"hardware": {
"vendor": "nvidia",
"product": "NVIDIA B200",
"architecture": "sm_100"
},
"software": {}
},
"metadata": {
"name": "liger-bench-nvidia-b200",
"title": "Liger benchmark host · B200"
},
"apiVersion": "kernelindex.dev/v1alpha1"
}
}Cite this record (permalink, digest, access date)
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Published 2026-08-20 · Liger-Kernel benchmarks · BSD-2-ClauseAll results for GroupNorm →JSON