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Vulkan MMQ Integer Dot Refactor and K-Quant support (#16536)

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* vulkan: add mmq q2_k integer dot support

* Refactor mmq caching

* Reduce mmq register use

* Load 4 quant blocks into shared memory in one step

* Pack q2_k blocks into caches of 32

* Use 32-bit accumulators for integer dot matmul

* Add q4_k mmq

* Add q3_k mmq

* Add q5_k mmq

* Add q6_k mmq

* Add mxfp4 mmq, enable MMQ MUL_MAT_ID

* Fix mmv dm loads
This commit is contained in:
Ruben Ortlam
2025-10-29 14:39:03 +01:00
committed by GitHub
parent 3eb2be1ca5
commit bcf5bda6f5
18 changed files with 941 additions and 418 deletions
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ggml/src/ggml-vulkan/vulkan-shaders/dequant_mxfp4.comp
+2 -2
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@@ -26,7 +26,7 @@ void main() {
const float d = e8m0_to_fp32(data_a[ib].e);
[[unroll]] for (uint l = 0; l < 8; ++l) {
data_b[b_idx + l + 0] = D_TYPE(d * kvalues_mxfp4[data_a[ib].qs[q_idx + l] & 0xF]);
data_b[b_idx + l + 16] = D_TYPE(d * kvalues_mxfp4[data_a[ib].qs[q_idx + l] >> 4]);
data_b[b_idx + l + 0] = D_TYPE(d * 0.5 * float(kvalues_mxfp4[data_a[ib].qs[q_idx + l] & 0xF]));
data_b[b_idx + l + 16] = D_TYPE(d * 0.5 * float(kvalues_mxfp4[data_a[ib].qs[q_idx + l] >> 4]));
}
}