aedf332ec5
This fixes incoherent output in Llama-4-Maverick-17B-128E-PAB-Q8_0, which has a mul_mat_id with an A matrix that's Q8_0 8192 x 5120 x 128. This should work when the number of blocks in the A matrix is less than 2^32 (for mul_mat_vec or mul_mm_cm2), or for mul_mm I think the limit is like 2^32*LOAD_VEC_A elements. - Divide batch_stride by QUANT_K earlier, so the block index calculation works in 32b. - Each vk_pipeline_struct has a linked list of pipelines that will allow it to handle variants. So far this change just adds a single use case for this, compiling with the e64BitIndexingEXT flag. - Use the 64b indexing variant when the A matrix is larger than maxStorageBufferRange. 64-bit indexing has some cost - around 3-5% in MoE models, so it's worth the effort to avoid enabling it unconditionally. |
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| CMakeLists.txt | ||