Files
llama.cpp/ggml
70c4e1582e vulkan: int8 coopmat1 matmul implementation for AMD RDNA3 and RDNA4 (#27952)
* vulkan: add int8 coopmat quantized matmul shader

* apply scales inline

* use scalar sums

* probe and directly access coopmat values instead of going through shmem

* add q8_0 support

* add BK_STEP to shader, default to 2

* use larger workgroups

* double buffering

* preload scales

* coopmat load first, then wmma

* use float for scales

* add faster RDNA int->float conversion

* workgroup scheduling for cache proximity

* clean up

* use wave32

* restructure for vgpr use

* skip computation for inactive tiles

* only force subgroup size 32 on AMD RDNA

* use BK_STEP 4

* fix compilation

* move quant-specific prefetch function out of main file

* add q4_1, q5_0, q5_1 support

* restructure mmq cm1 functions

* enable mul_mat_id support

* fix segfault

* fix mul_mat_id bug

* support iq4_nl and mxfp4

* remove elem row/col fast path, invalid for RDNA4

* use shmem arrays for LUTs

* use 4-byte loads where possible

* add q3_k, q4_k, q5_k, q6_k and nvfp4 support

* fix l warptile

* improve performance

* improve performance

* improvements

* dedup b scales

* merge shmem arrays

* undo uint8_t, gate to RDNA3/4

* add RDNA4 architecture, use for hardcoded coopmat elem thread access, set BK_STEP back to 4

* improve offset application

* clean up

* fix iq4_nl and nvfp4 performance

* rdna4 tuning

* use BK_STEP 2 on MUL_MAT_ID

* adapt to upstream changes

* fix shmem support function, clean up comments

* fix warptile logic

Co-authored-by: Piotr Wilkin (ilintar) <piotr.wilkin@syndatis.com>

* vulkan: add IQ4_XS support to the coopmat1 integer matmul shader (#28440)

Adds IQ4_XS to mul_mmq_cm1: dedicated block_a_load/block_a_to_shmem that
expand both nibbles of each packed32 word through cm1_kvalues, LOAD_VEC_A 8
and an IQ4_XS-sized a_panel_bytes estimate for the L2-friendly scheduling.

Assisted-by: OpenAI Codex

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>

* avoid compiling f16 acc shader variants

---------

Co-authored-by: Piotr Wilkin (ilintar) <piotr.wilkin@syndatis.com>
Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-24 15:18:47 +02:00
..
2026-09-23 11:47:24 +03:00
2024-07-13 18:12:39 +02:00