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GQA paged prefill causal h32 kv8 d128 ps1

91 eligible runs
gqa-paged-attention

Batched Grouped Query Attention prefill with a paged KV cache. Causal mask is applied. Captured from Llama-3.1-8B during incremental prefill.

Fastest reported
5.11µsmean · 99% of SOL
GeometricLicense unknown · unknown

Reported evidence · last observed 2026-08-21. Reported by source; not independently reproduced. No public source. License unknown.

No public sourceRun detail →

Current records

Workloadsuite of 38 cases · mean latency76 cases
total_q
num_pages
num_kv_indices
len_indptr
head_dim
num_kv_heads
num_qo_heads
page_size
dtype
151342————bf161513421288321bf1621346932————bf16213469321288321bf16568222————bf165682221288321bf161418187143————bf1614181871431288321bf16168732————bf161687321288321bf161755231022————bf1617552310221288321bf1630212————bf16302121288321bf1634212————bf16342121288321bf16421371932————bf164213719321288321bf1670222053135————bf16702220531351288321bf16781371943————bf167813719431288321bf16123135698124————bf161231356981241288321bf16134383616105————bf161343836161051288321bf161785940232————bf1617859402321288321bf1620217470674————bf16202174706741288321bf163981454732————bf1639814547321288321bf16117143945542————bf161171439455421288321bf1612861788003513————bf16128617880035131288321bf1620025085306721————bf16200250853067211288321bf16247317655122————bf162473176551221288321bf163478716370256018————bf1634787163702560181288321bf1648031117216631————bf16480311172166311288321bf1649502963922511————bf16495029639225111288321bf1661022562264117————bf16610225622641171288321bf16655817507810144————bf166558175078101441288321bf167009701493013————bf1670097014930131288321bf1671403990969739————bf16714039909697391288321bf167419270692258————bf1674192706922581288321bf1677863970537427————bf16778639705374271288321bf16814013618110441————bf168140136181104411288321bf16829860549814342————bf168298605498143421288321bf168981205851612————bf1689812058516121288321bf1610393395233178————bf16103933952331781288321bf1610447212————bf16104472121288321bf1610749205859953————bf16107492058599531288321bf1612734863333————bf16127348633331288321bf161351522829————bf1613515228291288321bf16163842563432————bf161638425634321288321bf16
scrolls · 76 cases total

Not measured on H100 for this workload. Challenges →

Source-native comparison · GPU NVIDIA B200 · Workload suite of 38 cases · mean latency · Protocol SOL-ExecBench evaluation stack v1.1 · mean · 30 results · last observed 2026-08-21Record history →
#
Implementation
Latency
vs #1
Trust
Observed
1
5.11µs99% SOL
1.00×
Reported · license unknown · no source
2026-08-21

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
2
5.11µs99% SOL
1.00×
Reported · license unknown · no source
2026-08-09

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
3
5.18µs99% SOL
1.01×
Reported · license unknown · no source
2026-07-28

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
4
5.63µs99% SOL
1.10×
Reported · license unknown · no source
2026-08-05

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
5
6.46µs99% SOL
1.27×
Reported · license unknown · no source
2026-07-30

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
6
6.97µs99% SOL
1.37×
Reported · license unknown · no source
2026-07-16

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
7
8.96µs98% SOL
1.76×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
8
10.7µs98% SOL
2.09×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
9
11.1µs98% SOL
2.16×
Reported · license unknown · no source
2026-07-31

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
10
11.1µs98% SOL
2.18×
Reported · license unknown · no source
2026-08-21

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
11
11.3µs98% SOL
2.21×
Reported · license unknown · no source
2026-07-18

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
12
11.4µs97% SOL
2.23×
Reported · license unknown · no source
2026-08-04

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
13
11.5µs97% SOL
2.25×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
14
11.6µs98% SOL
2.28×
Reported · license unknown · no source
2026-08-02

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
15
12.2µs97% SOL
2.39×
Reported · license unknown · no source
2026-07-31

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
16
12.3µs97% SOL
2.41×
Reported · license unknown · no source
2026-08-02

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
17
12.4µs97% SOL
2.42×
Reported · license unknown · no source
2026-07-30

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
18
12.4µs97% SOL
2.43×
Reported · license unknown · no source
2026-07-29

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
19
12.8µs97% SOL
2.50×
Reported · license unknown · no source
2026-08-03

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
20
13.4µs97% SOL
2.62×
Reported · license unknown · no source
2026-07-28

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
21
13.4µs97% SOL
2.63×
Reported · license unknown · no source
2026-07-27

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
22
13.8µs97% SOL
2.70×
Reported · license unknown · no source
2026-07-28

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
23
14.0µs97% SOL
2.75×
Reported · license unknown · no source
2026-08-21

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
24
14.4µs97% SOL
2.82×
Reported · license unknown · no source
2026-07-24

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
25
15.7µs97% SOL
3.07×
Reported · license unknown · no source
2026-07-15

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
26
16.0µs96% SOL
3.14×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
27
19.1µs95% SOL
3.74×
Reported · license unknown · no source
2026-07-30

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
28
19.5µs96% SOL
3.81×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
29
33.6µs90% SOL
6.59×
Reported · license unknown · no source
2026-08-12

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →
30
40.9µs92% SOL
8.01×
Reported · license unknown · no source
2026-07-10

Measured exactly what you asked. Reported by source; not independently reproduced.

no sourcelicense unknownno install recipeRun detail →

Implementations

Implementation
Runtime
Best latency
Evidence
Availability
unknown
5.11µs
1.00×
Reported
license unknown · no source
unknown
8.91µs
1.75×
Reported
license unknown · no source
unknown
10.6µs
2.08×
Reported
license unknown · no source
unknown
11.3µs
2.21×
Reported
license unknown · no source
unknown
11.4µs
2.22×
Reported
license unknown · no source
unknown
12.8µs
2.50×
Reported
license unknown · no source
unknown
14.4µs
2.82×
Reported
license unknown · no source
unknown
15.7µs
3.07×
Reported
license unknown · no source
Show all 50 implementations ›
unknown
16.0µs
3.13×
Reported
license unknown · no source
unknown
19.5µs
3.81×
Reported
license unknown · no source
unknown
35.7µs
7.00×
Reported
license unknown · no source
unknown
6.46µs
1.27×
Reported
license unknown · no source
unknown
6.97µs
1.37×
Reported
license unknown · no source
unknown
8.96µs
1.76×
Reported
license unknown · no source
unknown
10.7µs
2.09×
Reported
license unknown · no source
unknown
11.1µs
2.16×
Reported
license unknown · no source
unknown
11.6µs
2.28×
Reported
license unknown · no source
unknown
11.1µs
2.18×
Reported
license unknown · no source
unknown
12.3µs
2.41×
Reported
license unknown · no source
unknown
12.4µs
2.43×
Reported
license unknown · no source
unknown
12.2µs
2.39×
Reported
license unknown · no source
unknown
12.4µs
2.42×
Reported
license unknown · no source
unknown
11.4µs
2.23×
Reported
license unknown · no source
unknown
11.5µs
2.25×
Reported
license unknown · no source
unknown
13.4µs
2.62×
Reported
license unknown · no source
unknown
13.4µs
2.63×
Reported
license unknown · no source
unknown
14.0µs
2.75×
Reported
license unknown · no source
unknown
13.8µs
2.70×
Reported
license unknown · no source
unknown
14.6µs
2.85×
Reported
license unknown · no source
unknown
16.0µs
3.14×
Reported
license unknown · no source
unknown
19.1µs
3.74×
Reported
license unknown · no source
unknown
21.7µs
4.25×
Reported
license unknown · no source
unknown
21.8µs
4.28×
Reported
license unknown · no source
unknown
40.6µs
7.95×
Reported
license unknown · no source
unknown
40.9µs
8.01×
Reported
license unknown · no source
unknown
35.9µs
7.04×
Reported
license unknown · no source
unknown
33.6µs
6.59×
Reported
license unknown · no source
unknown
2.40ms
470.67×
Reported
license unknown · no source
unknown
5.11µs
1.00×
Reported
license unknown · no source
unknown
5.18µs
1.01×
Reported
license unknown · no source
unknown
5.63µs
1.10×
Reported
license unknown · no source
claude-opus-4-1 / cudaa6c279claude-opus-4-1-20250805
cuda
—
—
Apache-2.0 · source
claude-opus-4-1_triton_b32529claude-opus-4-1-20250805
triton
2.36ms
461.64×
Reported
Apache-2.0 · source
cuda
—
—
Apache-2.0 · source
triton
151.7µs
29.72×
Reported
Apache-2.0 · source
gpt-5 / cuda21ea96gpt-5-2025-08-07
cuda
68.7µs
13.45×
Reported
Apache-2.0 · source
gpt-5 / tritone289b9gpt-5-2025-08-07
triton
259.7µs
50.87×
Reported
Apache-2.0 · source
cuda
31.5µs
6.16×
Reported
Apache-2.0 · source
triton
4.71ms
921.84×
Reported
Apache-2.0 · source
flashinfer / wrapper8cad92FlashInfer-Bench baselines
python
174.8µs
34.24×
Reproduction-ready
Apache-2.0 · source

Semantics

Inputs and outputs
qbf16 [total_q, num_qo_heads, head_dim]
k_cachebf16 [num_pages, page_size, num_kv_heads, head_dim]
v_cachebf16 [num_pages, page_size, num_kv_heads, head_dim]
qo_indptrint32 [len_indptr]
kv_indptrint32 [len_indptr]
kv_indicesint32 [num_kv_indices]
sm_scalefp32 scalar
outputbf16 [total_q, num_qo_heads, head_dim]
lsefp32 [total_q, num_qo_heads]
Axes and behavior
total_qvariable
head_dimconstant = 128
num_pagesvariable
page_sizeconstant = 1
len_indptrvariable
num_kv_headsconstant = 8
num_qo_headsconstant = 32
num_kv_indicesvariable
determinismunspecified
constraintsNo mutation or aliasing
Identity
aliasgqa_paged_prefill_causal_h32_kv8_d128_ps1modelllama-3-1-8bsha2568b9b3c2bbafb…

Also indexed as 015-gqa-paged-prefill-causal-h32-kv8-d128-ps1 · reviewed as the same computation; every definition's cohorts are shown here, ranked separately.

Sources: NVIDIA SOL-ExecBench (2026-08-21) · FlashInfer-Bench (2025-10-21) · Apache-2.0last observed 2026-08-21How records are decidedJSON