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ggml : fix unaligned access in AMX code (#16315)

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Georgi Gerganov
2025-10-06 16:05:27 +03:00
committed by GitHub
parent 04e632a4aa
commit a23b9bdbd3
1 changed files with 1 additions and 0 deletions
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ggml/src/ggml-cpu/amx/amx.cpp
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@@ -149,6 +149,7 @@ class extra_buffer_type : ggml::cpu::extra_buffer_type {
if (op->op == GGML_OP_MUL_MAT && is_contiguous_2d(op->src[0]) && // src0 must be contiguous
is_contiguous_2d(op->src[1]) && // src1 must be contiguous
op->src[0]->buffer && op->src[0]->buffer->buft == ggml_backend_amx_buffer_type() &&
op->src[0]->ne[0] % (TILE_K * 2 * 32) == 0 && // TODO: not sure if correct (https://github.com/ggml-org/llama.cpp/pull/16315)
op->ne[0] % (TILE_N * 2) == 0 && // out_features is 32x
(qtype_has_amx_kernels(op->src[0]->type) || (op->src[0]->type == GGML_TYPE_F16))) {
// src1 must be host buffer