diff options
Diffstat (limited to 'ggml/src/ggml-cuda.cu')
| -rw-r--r-- | ggml/src/ggml-cuda.cu | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/ggml/src/ggml-cuda.cu b/ggml/src/ggml-cuda.cu index e26f36a0..9051863b 100644 --- a/ggml/src/ggml-cuda.cu +++ b/ggml/src/ggml-cuda.cu @@ -1170,8 +1170,8 @@ static cudaError_t ggml_cuda_cpy_tensor_2d( void * dst, const struct ggml_tensor * src, int64_t i3, int64_t i2, int64_t i1_low, int64_t i1_high, cudaStream_t stream) { GGML_ASSERT(ggml_backend_buffer_is_cuda(src->buffer)); - char * src_ptr = (char *) src->data; - char * dst_ptr = (char *) dst; + const char * src_ptr = (const char *) src->data; + char * dst_ptr = (char *) dst; const int64_t ne0 = src->ne[0]; const int64_t nb0 = src->nb[0]; @@ -1182,7 +1182,7 @@ static cudaError_t ggml_cuda_cpy_tensor_2d( const int64_t ts = ggml_type_size(type); const int64_t rs = ggml_row_size(type, ne0); const int64_t bs = ggml_blck_size(type); - int64_t i1_diff = i1_high - i1_low; + const int64_t i1_diff = i1_high - i1_low; const char * x = src_ptr + i1_low*nb1 + i2*nb2 + i3*nb3; if (nb0 == ts && nb1 == rs) { @@ -1532,10 +1532,14 @@ static void ggml_cuda_op_mul_mat( if (src0_is_contiguous) { dev[id].src0_dd = split ? (char *) src0_extra->data_device[id] : (char *) src0->data; } else { - dev[id].src0_dd = dev[id].src0_dd_alloc.alloc(ctx.pool(id), ggml_nbytes(src0)); + // If src0 is not contiguous it will be copied to a temporary buffer, it may then be necessary to clear padding. + const size_t nbytes_data = ggml_nbytes(src0); + const size_t nbytes_padding = ggml_row_size(src0->type, MATRIX_ROW_PADDING - ne00 % MATRIX_ROW_PADDING); + dev[id].src0_dd = dev[id].src0_dd_alloc.alloc(ctx.pool(id), nbytes_data + nbytes_padding); + CUDA_CHECK(cudaMemsetAsync(dev[id].src0_dd, 0, nbytes_data + nbytes_padding, stream)); } - // If src0 is on a temporary compute buffers (partial offloading) there may be some padding that needs to be cleared: + // If src0 is on a temporary compute buffer (partial offloading) there may be some padding that needs to be cleared: if (ne00 % MATRIX_ROW_PADDING != 0 && ggml_is_quantized(src0->type) && ggml_backend_buffer_get_usage(src0->buffer) == GGML_BACKEND_BUFFER_USAGE_COMPUTE && src0->view_src == nullptr) { const int64_t nbytes_data = ggml_row_size(src0->type, (dev[id].row_high - dev[id].row_low)*ne00); const int64_t nbytes_padding = ggml_row_size(src0->type, MATRIX_ROW_PADDING - ne00 % MATRIX_ROW_PADDING); |