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Merged
merged 2 commits into from
Jul 30, 2025
Merged

fix_linalg_solve #74282

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fix__linalg_solve
fxyfxy777 Jul 29, 2025
7b2e9bb
fix_solve
fxyfxy777 Jul 30, 2025
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3 changes: 3 additions & 0 deletions paddle/phi/kernels/funcs/matrix_solve.cu
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Original file line number Diff line number Diff line change
Expand Up @@ -13,6 +13,7 @@ See the License for the specific language governing permissions and
limitations under the License. */

#include "paddle/phi/kernels/funcs/matrix_solve.h"
#include "paddle/phi/backends/gpu/cuda/cudnn_workspace_helper.h"
#include "paddle/phi/common/memory_utils.h"
#include "paddle/phi/core/tensor_utils.h"
#include "paddle/phi/kernels/funcs/blas/blas.h"
Expand Down Expand Up @@ -161,11 +162,13 @@ void MatrixSolveFunctor<Context, T>::operator()(const Context& dev_ctx,
int n = a_dims[a_rank - 1];
int lda = n;
int64_t batch_size = a_rank > 2 ? a.numel() / (n * n) : 1;
CUDNN_ENFORCE_TENSOR_SIZE_SUPPORTED(a);

const auto& b_dims = b.dims();
const int b_rank = b_dims.size();
int nrhs = b_dims[b_rank - 1];
int ldb = n;
CUDNN_ENFORCE_TENSOR_SIZE_SUPPORTED(b);

// 1. Copy input A to a temporary tensor tmp_a for LU factorization.
DenseTensor tmp_a(a.dtype());
Expand Down