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[SYCL] Fix DMMV dequantization #9279

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merged 4 commits into from
Sep 4, 2024
Merged

[SYCL] Fix DMMV dequantization #9279

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3ba9d04
Fixed dmmv dequant for k<= GGML_SYCL_DMMV_X
OuadiElfarouki Sep 2, 2024
da18950
removed unecessary condition
OuadiElfarouki Sep 2, 2024
8cdbe11
rectified dmmv quant fix
OuadiElfarouki Sep 3, 2024
24bfbde
Removed unecessary loop unrolling
OuadiElfarouki Sep 4, 2024
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1 change: 1 addition & 0 deletions ggml/src/ggml-sycl/dmmv.cpp
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Expand Up @@ -47,6 +47,7 @@ static void dequantize_mul_mat_vec(const void * __restrict__ vx, const dfloat *

for (int i = 0; i < ncols; i += iter_stride) {
const int col = i + vals_per_iter*tid;
if (col >= ncols) break;
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const int ib = (row*ncols + col)/qk; // x block index
const int iqs = (col%qk)/qr; // x quant index
const int iybs = col - col%qk; // y block start index
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