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AVX2: Speed up large batch size prompt processing of IQ models (#27402)

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* Batched gemm for grid IQ quants

Style updates and a bit more performance

Clean up comments

Move code around

Vectorize IQ panel decode, lower threshold for speedup

IQ panel: single-source gather layout, gate bias, vectorize interleave

Add ggml_gemm_iqp_8x8_q8_K_p4 kernel, remove gather buffer

Move IQ panel code out of repack into iqp.cpp, clean up comments

Another comment sweep

* Add myself as iqp.* codeownder

* Remove ggml_cpu_iqp_scratch_offset and ggml_cpu_iqp_src1_conv_size

* Renaming and moving

* The other half of renaming and moving

* Move macros and ggml_cpu_iqp_mul_mat_id_min_batch definition

* Update ggml/src/ggml-cpu/iqp.h

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>

* Add iqp_rows work buffer

* Revert "Add iqp_rows work buffer"

This reverts commit 425542991eee1b01fa3844bf87fc4f205ddbfccb.

* Add NUMA fallback

* Add 10 row batch tests for IQP coverage on all grid IQ types

* Swap assert for return false in support check

* Move IQP mul_mat_id test

---------

Co-authored-by: Georgi Gerganov <ggerganov@gmail.com>
This commit is contained in:
Bartowski
2026-08-31 14:33:50 -04:00
committed by GitHub
co-authored by Georgi Gerganov
parent 2a74817f93
commit 85c55223ca
7 changed files with 1342 additions and 1 deletions
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ggml/src/ggml-common.h
+1 -1
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@@ -1131,7 +1131,7 @@ GGML_TABLE_END()
#define NGRID_IQ1S 2048
#define IQ1S_DELTA 0.125f
#define IQ1M_DELTA 0.125f
#if defined(GGML_COMMON_IMPL_C)
#if defined(GGML_COMMON_IMPL_C) || defined(GGML_COMMON_IMPL_CPP)
GGML_TABLE_BEGIN(uint64_t, iq1s_grid, NGRID_IQ1S)
0xffffffffffffffff, 0xffffffffffffff01, 0xffffffffffff0000, 0xffffffffffff01ff,
0xffffffffffff0101, 0xffffffffff00ff00, 0xffffffffff000000, 0xffffffffff01ffff,