Batched 2d RoPE position encoding backward
Backward pass for batched 2D RoPE position encoding. Computes gradients through cos/sin operations for mixed text-image sequences. Since positions and theta are non-differentiable, no gradients propagate further.
Reported evidence · last observed 2026-08-20. Reported by source; not independently reproduced. No public source. License unknown.
Current records
Workloadsuite of 16 cases · mean latencyhead_dim = 12816 cases
Not measured on H100 for this workload. Challenges →
14.59µs91% SOL1.00×Reported · license unknown · no source2026-08-20
Measured exactly what you asked. Reported by source; not independently reproduced.
25.20µs90% SOL1.13×Reported · license unknown · no source2026-08-24
Measured exactly what you asked. Reported by source; not independently reproduced.
35.22µs89% SOL1.14×Reported · license unknown · no source2026-07-29
Measured exactly what you asked. Reported by source; not independently reproduced.
45.23µs89% SOL1.14×Reported · license unknown · no source2026-07-28
Measured exactly what you asked. Reported by source; not independently reproduced.
55.30µs89% SOL1.15×Reported · license unknown · no source2026-07-29
Measured exactly what you asked. Reported by source; not independently reproduced.
65.36µs89% SOL1.17×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.
75.37µs89% SOL1.17×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.
85.37µs88% SOL1.17×Reported · license unknown · no source2026-08-03
Measured exactly what you asked. Reported by source; not independently reproduced.
95.55µs88% SOL1.21×Reported · license unknown · no source2026-07-17
Measured exactly what you asked. Reported by source; not independently reproduced.
105.56µs88% SOL1.21×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.
115.66µs88% SOL1.23×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.
125.68µs88% SOL1.24×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.
135.69µs88% SOL1.24×Reported · license unknown · no source2026-08-14
Measured exactly what you asked. Reported by source; not independently reproduced.
145.70µs88% SOL1.24×Reported · license unknown · no source2026-08-05
Measured exactly what you asked. Reported by source; not independently reproduced.
155.78µs88% SOL1.26×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.
166.03µs87% SOL1.31×Reported · license unknown · no source2026-08-05
Measured exactly what you asked. Reported by source; not independently reproduced.
176.89µs83% SOL1.50×Reported · license unknown · no source2026-07-10
Measured exactly what you asked. Reported by source; not independently reproduced.