b7790
vulkan: Use mul_mat_vec_id for small values of n (#18918)
Change ggml_vk_mul_mat_vec_id_q_f16 to loop over the batch dimension and update the indexing calculations in get_offsets.
Mat-vec is faster than mat-mat for small values of n. We don't get the same reuse of the weights as in the non-ID path, but with this the cost is linear in n rather than n>1 being far slower than n==1.
macOS/iOS:
Linux:
Windows:
- Windows x64 (CPU)
- Windows arm64 (CPU)
- Windows x64 (CUDA 12) - CUDA 12.4 DLLs
- Windows x64 (CUDA 13) - CUDA 13.1 DLLs
- Windows x64 (Vulkan)
- Windows x64 (SYCL)
- Windows x64 (HIP)
openEuler: