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sycl: Remove not needed copy f16->f32 for dnnl mul mat (llama/14125)

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This commit is contained in:
Anton Mitkov
2025-06-12 14:15:11 +01:00
committed by Georgi Gerganov
parent a96a880f7b
commit 0097eaf839
2 changed files with 6 additions and 6 deletions
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9
ggml/src/ggml-sycl/ggml-sycl.cpp
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@ -2127,21 +2127,18 @@ inline void ggml_sycl_op_mul_mat_sycl(
const sycl::half *src1_ptr = src1->type == GGML_TYPE_F16
? (const sycl::half *)src1->data + src1_padded_row_size
: src1_as_f16.get();
ggml_sycl_pool_alloc<sycl::half> dst_f16(ctx.pool(), row_diff * src1_ncols);
#if GGML_SYCL_DNNL
if (!g_ggml_sycl_disable_dnn) {
DnnlGemmWrapper::row_gemm(ctx, src1_ncols, row_diff, ne10, src1_ptr,
DnnlGemmWrapper::to_dt<sycl::half>(), src0_ptr, DnnlGemmWrapper::to_dt<sycl::half>(),
dst_f16.get(), DnnlGemmWrapper::to_dt<sycl::half>(), stream);
scope_op_debug_print scope_dbg_print(__func__, "/to_fp32_sycl", dst, /*num_src=*/2,
" : converting dst to fp32");
const to_fp32_sycl_t to_fp32_sycl = ggml_get_to_fp32_sycl(GGML_TYPE_F16, dst);
to_fp32_sycl(dst_f16.get(), dst_dd_i, row_diff* src1_ncols, stream);
dst_dd_i, DnnlGemmWrapper::to_dt<float>(), stream);
}
else
#endif
{
ggml_sycl_pool_alloc<sycl::half> dst_f16(ctx.pool(), row_diff * src1_ncols);
const sycl::half alpha_f16 = 1.0f;
const sycl::half beta_f16 = 0.0f;
SYCL_CHECK(CHECK_TRY_ERROR(dpct::gemm(