mirror of
https://github.com/ggml-org/llama.cpp.git
synced 2026-05-15 05:24:06 +00:00
8e1f9d0834
`im2col_cuda` and `im2col_3d_cuda` both dispatch with `block_nums.y = OW`. CUDA caps grid Y at 65535. Conv1d encoders on raw 16 kHz audio with T > 65535 (~ 4 s) trip the limit -- e.g. SEANet at 11 s lands at OW = 176000 -- and the launch returns `invalid configuration argument`. Clamp `block_nums.y` to `MIN(OW, MAX_GRIDDIM_Y)` and loop inside the kernel with stride `MAX_GRIDDIM_Y`. Same in-kernel stride pattern already used for the z axis (`MAX_GRIDDIM_Z`). Both 2D `im2col_kernel` and 3D `im2col_3d_kernel` need the same fix. Bit-identical for OW <= 65535 (single iteration of the new outer loop). Tested on T4 / Jetson Orin with a SEANet encoder running on 11 s / 16 kHz audio (im2col reaching OW ~ 176000); pre-fix launch returns `invalid configuration argument`, post-fix runs to completion. Existing test-backend-ops im2col cases unchanged.