Grouped query self attention with RoPE
Grouped Query Self-Attention with integrated RoPE position embeddings. Supports both encoder (non-causal, 16 heads, 4 KV heads) and decoder (causal, 24 heads, 8 KV heads) configurations. Fuses Q/K/V projections, RoPE application, GQA computation, and output projection.
Reported evidence · last observed 2026-07-27. Reported by source; not independently reproduced. No public source. License unknown.
Current records
Workloadsuite of 16 cases · mean latencyhead_dim = 64 · num_heads = 16 · hidden_size = 1024 · q_proj_size = 1024 · kv_proj_size = 256 · num_key_value_heads = 4 · num_key_value_groups = 416 cases
Not measured on H100 for this workload. Challenges →
173.1µs79% SOL1.00×Reported · license unknown · no source2026-07-27
Measured exactly what you asked. Reported by source; not independently reproduced.
285.4µs76% SOL1.17×Reported · license unknown · no source2026-07-31
Measured exactly what you asked. Reported by source; not independently reproduced.
390.3µs75% SOL1.24×Reported · license unknown · no source2026-08-23
Measured exactly what you asked. Reported by source; not independently reproduced.
491.0µs75% SOL1.24×Reported · license unknown · no source2026-08-22
Measured exactly what you asked. Reported by source; not independently reproduced.
597.8µs74% SOL1.34×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.
698.1µs74% SOL1.34×Reported · license unknown · no source2026-08-19
Measured exactly what you asked. Reported by source; not independently reproduced.
798.7µs73% SOL1.35×Reported · license unknown · no source2026-08-21
Measured exactly what you asked. Reported by source; not independently reproduced.
899.0µs73% SOL1.35×Reported · license unknown · no source2026-08-18
Measured exactly what you asked. Reported by source; not independently reproduced.
9106.1µs72% SOL1.45×Reported · license unknown · no source2026-08-06
Measured exactly what you asked. Reported by source; not independently reproduced.
10107.3µs72% SOL1.47×Reported · license unknown · no source2026-08-06
Measured exactly what you asked. Reported by source; not independently reproduced.
11110.2µs71% SOL1.51×Reported · license unknown · no source2026-08-03
Measured exactly what you asked. Reported by source; not independently reproduced.
12111.4µs70% SOL1.52×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.
13111.8µs71% SOL1.53×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.
14116.4µs70% SOL1.59×Reported · license unknown · no source2026-08-15
Measured exactly what you asked. Reported by source; not independently reproduced.
15116.4µs70% SOL1.59×Reported · license unknown · no source2026-08-15
Measured exactly what you asked. Reported by source; not independently reproduced.
16116.5µs70% SOL1.59×Reported · license unknown · no source2026-08-15
Measured exactly what you asked. Reported by source; not independently reproduced.
17117.0µs70% SOL1.60×Reported · license unknown · no source2026-07-12
Measured exactly what you asked. Reported by source; not independently reproduced.
18123.1µs69% SOL1.68×Reported · license unknown · no source2026-07-16
Measured exactly what you asked. Reported by source; not independently reproduced.
19124.0µs68% SOL1.70×Reported · license unknown · no source2026-08-22
Measured exactly what you asked. Reported by source; not independently reproduced.
20124.4µs68% SOL1.70×Reported · license unknown · no source2026-08-06
Measured exactly what you asked. Reported by source; not independently reproduced.
21129.2µs68% SOL1.77×Reported · license unknown · no source2026-08-18
Measured exactly what you asked. Reported by source; not independently reproduced.
22143.1µs65% SOL1.96×Reported · license unknown · no source2026-08-20
Measured exactly what you asked. Reported by source; not independently reproduced.
23167.8µs61% SOL2.29×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.
24204.6µs56% SOL2.80×Reported · license unknown · no source2026-08-06
Measured exactly what you asked. Reported by source; not independently reproduced.
25229.0µs53% SOL3.13×Reported · license unknown · no source2026-08-16
Measured exactly what you asked. Reported by source; not independently reproduced.
26267.3µs50% SOL3.65×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.
27485.4µs37% SOL6.64×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.
28491.5µs35% SOL6.72×Reported · license unknown · no source2026-07-13
Measured exactly what you asked. Reported by source; not independently reproduced.
29559.5µs32% SOL7.65×Reported · license unknown · no source2026-07-13
Measured exactly what you asked. Reported by source; not independently reproduced.
30567.7µs31% SOL7.76×Reported · license unknown · no source2026-07-13
Measured exactly what you asked. Reported by source; not independently reproduced.
31605.3µs30% SOL8.28×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.