vbatts/llama.cpp
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set number of threads automatically for openblas and blis

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slaren 2024-06-07 19:29:35 +02:00
parent fa2ec60745
commit a8a1bf7981
1 changed files with 22 additions and 0 deletions
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22
ggml-blas.cpp
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@ -10,6 +10,9 @@
# include <mkl.h>
#else
# include <cblas.h>
# ifdef BLIS_ENABLE_CBLAS
# include <blis.h>
# endif
#endif
struct ggml_backend_blas_context {
@ -128,6 +131,15 @@ static void ggml_backend_blas_mul_mat(ggml_backend_blas_context * ctx, struct gg
#endif
}
#if defined(OPENBLAS_VERSION)
openblas_set_num_threads(ctx->n_threads);
#endif
#if defined(BLIS_ENABLE_CBLAS)
bli_thread_set_num_threads(ctx->n_threads);
#endif
for (int64_t i13 = 0; i13 < ne13; i13++) {
for (int64_t i12 = 0; i12 < ne12; i12++) {
const int64_t i03 = i13/r3;
@ -322,6 +334,16 @@ ggml_backend_t ggml_backend_blas_init(void) {
/* .context = */ ctx,
};
#if !defined(NDEBUG) && defined(OPENBLAS_VERSION) && defined(GGML_USE_OPENMP)
if (openblas_get_parallel() != OPENBLAS_OPENMP) {
fprintf(stderr, "%s: warning: ggml is using OpenMP, but OpenBLAS was compiled without OpenMP support\n", __func__);
}
#endif
#if !defined(NDEBUG) && defined(BLIS_ENABLE_CBLAS) && defined(GGML_USE_OPENMP) && !defined(BLIS_ENABLE_OPENMP)
fprintf(stderr, "%s: warning: ggml is using OpenMP, but BLIS was compiled without OpenMP support\n", __func__);
#endif
return backend;
}