Liger
Rotary position embedding · seq = 16384 · hidden = 8192 · q_heads = 32 · kv_heads = 8 · bf16 · run 01a016ae-3d2a…
●passedReported evidence
Not re-observed recently.
Primary measurement
410.2µsmedian
Rank 1 in its comparison group · source-native comparison · observed 2024-09-03
ms 20 0.40871042013168335 · ms 50 0.4102399945259094 · ms 80 0.4119040071964264
Identity
implementationLiger
projectLiger-Kernel
revisionunknown
workloadseq = 16384 · hidden = 8192 · q_heads = 32 · kv_heads = 8 · bf16
comparison keysha256:cd3b72f23bea2b1e…
sourceLiger-Kernel benchmarks
external idrope/backward/liger/nvidia-a100-sxm4-80gb/hidden8192-kv_heads8-q_heads32-seq16384-bf16/2024-09-03-15-40-08
sha256:f32ed190b0d77ac4527ab39…
Correctness
Marked passed by the source; the correctness policy was not published.
Workload
seq16384
hidden8192
q_heads32
kv_heads8
kbf16 [1, 8, 16384, 256]
qbf16 [1, 32, 16384, 256]
definition comparatornot_asserted
Measurements
latency · median410.2 µs
latency · p20408.7 µs
latency · p80411.9 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
No attestations yet.
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": {
"median": 410240
},
"primaryStatistic": "median"
},
"observedAt": "2024-09-03T15:40:08.000Z",
"measurements": [
{
"unit": "ns",
"value": 408710,
"metric": "latency",
"statistic": "p20"
},
{
"unit": "ns",
"value": 411904,
"metric": "latency",
"statistic": "p80"
}
],
"sourceNative": {
"source": "liger-kernel-bench",
"metrics": {
"ms_20": 0.40871042013168335,
"ms_50": 0.4102399945259094,
"ms_80": 0.4119040071964264
},
"benchmark": "rope/backward",
"externalId": "rope/backward/liger/nvidia-a100-sxm4-80gb/hidden8192-kv_heads8-q_heads32-seq16384-bf16/2024-09-03-15-40-08"
},
"protocolDigest": "sha256:080e6e66e4ec75a131aa0c9121c74b8e8eed64e7b6d621d567c6a28f79548be8",
"workloadDigest": "sha256:8b228683a228b8af40407bd899af1c29de9d7d67eab76eed00cf5286e62800d4",
"environmentDigest": "sha256:90c9e2764222f592477cfccf3373519add5a1b881563956ad058c4f99e41b6b9",
"implementationDigest": "sha256:51eb16de033f2219f67b768ae0f8b919b4f1af7bd11ee0c19e51fe8df440fa54"
},
"metadata": {
"name": "liger-rope-backward-liger-nvidia-a100-sxm4-80gb-hidden8192-kv-heads8-q-heads32-seq16384-bf16-2024-09",
"title": "Rotary position embedding · liger · backward",
"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 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 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"
}
}Cite this record (permalink, digest, access date)
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Published 2026-08-18 · Liger-Kernel benchmarks · BSD-2-ClauseAll results for Rotary position embedding →JSON