DPCT1134

Intel® DPC++ Compatibility Tool Developer Guide and Reference

Download PDF

ID 768918

Date 3/31/2025

Version

Public

Visible to Intel only — GUID: GUID-0E1E0E6F-24CB-4DF0-9B26-E10C51B40D0E

View Details

DPCT1134

Message

The tool cannot deduce the consumer API (dpct::sparse::csrgemm) of this API, and this API has 2 arguments depending on the 8th and the 12th parameters of the consumer API. Please replace the 2 arguments tagged as dpct_placeholder with the corresponding value.

Detailed Help

The output of dpct::sparse::csrgemm_nnz is a number representing the NNZ (number of non-zero). This number is usually used as the size for memory allocation which will be used by consumer API dpct::sparse::csrgemm. The API dpct::sparse::csrgemm_nnz has 2 arguments depending on the 8th and the 12th parameters of the related consumer API dpct::sparse::csrgemm. The tool cannot detect the relationship. Users need to manually fill in those 2 arguments.

Suggestions to Fix

For example, this original CUDA* code:

void bar(cusparseHandle_t handle, cusparseOperation_t trans_a,
         cusparseMatDescr_t descr_a, int c_nnz, cusparseMatDescr_t descr_b,
         cusparseMatDescr_t descr_c, const float *val_a_s, const int *row_ptr_a,
         const int *col_ind_a, const float *val_b_s, const int *row_ptr_b,
         const int *col_ind_b, float *val_c_s, int *row_ptr_c, int *col_ind_c) {
  cusparseScsrgemm(handle, CUSPARSE_OPERATION_NON_TRANSPOSE,
                   CUSPARSE_OPERATION_NON_TRANSPOSE, 3, 4, 3, descr_a, 4,
                   val_a_s, row_ptr_a, col_ind_a, descr_b, 5, val_b_s,
                   row_ptr_b, col_ind_b, descr_c, val_c_s, row_ptr_c,
                   col_ind_c);
}

void foo(cusparseHandle_t handle, cusparseOperation_t trans_a,
         cusparseMatDescr_t descr_a, int c_nnz, cusparseMatDescr_t descr_b,
         cusparseMatDescr_t descr_c, const float *val_a_s, const int *row_ptr_a,
         const int *col_ind_a, const float *val_b_s, const int *row_ptr_b,
         const int *col_ind_b, float *val_c_s, int *row_ptr_c, int *col_ind_c) {
  cusparseXcsrgemmNnz(handle, CUSPARSE_OPERATION_NON_TRANSPOSE,
                      CUSPARSE_OPERATION_NON_TRANSPOSE, 3, 4, 3, descr_a, 4,
                      row_ptr_a, col_ind_a, descr_b, 5, row_ptr_b, col_ind_b,
                      descr_c, row_ptr_c, &c_nnz);
  bar(handle, trans_a, descr_a, c_nnz, descr_b, descr_c, val_a_s, row_ptr_a,
      col_ind_a, val_b_s, row_ptr_b, col_ind_b, val_c_s, row_ptr_c, col_ind_c);
}

results in the following migrated SYCL code:

void bar(dpct::sparse::descriptor_ptr handle, oneapi::mkl::transpose trans_a,
         std::shared_ptr<dpct::sparse::matrix_info> descr_a, int c_nnz,
         std::shared_ptr<dpct::sparse::matrix_info> descr_b,
         std::shared_ptr<dpct::sparse::matrix_info> descr_c,
         const float *val_a_s, const int *row_ptr_a, const int *col_ind_a,
         const float *val_b_s, const int *row_ptr_b, const int *col_ind_b,
         float *val_c_s, int *row_ptr_c, int *col_ind_c) {
  dpct::sparse::csrgemm(handle, oneapi::mkl::transpose::nontrans,
                        oneapi::mkl::transpose::nontrans, 3, 4, 3, descr_a,
                        val_a_s, row_ptr_a, col_ind_a, descr_b, val_b_s,
                        row_ptr_b, col_ind_b, descr_c, val_c_s, row_ptr_c,
                        col_ind_c);
}

 void foo(dpct::sparse::descriptor_ptr handle, oneapi::mkl::transpose trans_a,
          std::shared_ptr<dpct::sparse::matrix_info> descr_a, int c_nnz,
          std::shared_ptr<dpct::sparse::matrix_info> descr_b,
          std::shared_ptr<dpct::sparse::matrix_info> descr_c,
          const float *val_a_s, const int *row_ptr_a, const int *col_ind_a,
          const float *val_b_s, const int *row_ptr_b, const int *col_ind_b,
          float *val_c_s, int *row_ptr_c, int *col_ind_c) {
   /*
   DPCT1134:0: The tool cannot deduce the consumer API ("dpct::sparse::csrgemm")
   of this API, and this API has 2 arguments depending on the 8th and the 12th
   parameters of the consumer API. Please replace the 2 arguments tagged as
   "dpct_placeholder" with the corresponding value.
   */
   dpct::sparse::csrgemm_nnz(handle, oneapi::mkl::transpose::nontrans,
                             oneapi::mkl::transpose::nontrans, 3, 4, 3, descr_a,
                             4, dpct_placeholder, row_ptr_a, col_ind_a, descr_b,
                             5, dpct_placeholder, row_ptr_b, col_ind_b, descr_c,
                             row_ptr_c, &c_nnz);
   bar(handle, trans_a, descr_a, c_nnz, descr_b, descr_c, val_a_s, row_ptr_a,
       col_ind_a, val_b_s, row_ptr_b, col_ind_b, val_c_s, row_ptr_c, col_ind_c);
 }

which can be rewritten to:

void bar(dpct::sparse::descriptor_ptr handle, oneapi::mkl::transpose trans_a,
         std::shared_ptr<dpct::sparse::matrix_info> descr_a, int c_nnz,
         std::shared_ptr<dpct::sparse::matrix_info> descr_b,
         std::shared_ptr<dpct::sparse::matrix_info> descr_c,
         const float *val_a_s, const int *row_ptr_a, const int *col_ind_a,
         const float *val_b_s, const int *row_ptr_b, const int *col_ind_b,
         float *val_c_s, int *row_ptr_c, int *col_ind_c) {
  dpct::sparse::csrgemm(handle, oneapi::mkl::transpose::nontrans,
                        oneapi::mkl::transpose::nontrans, 3, 4, 3, descr_a,
                        val_a_s, row_ptr_a, col_ind_a, descr_b, val_b_s,
                        row_ptr_b, col_ind_b, descr_c, val_c_s, row_ptr_c,
                        col_ind_c);
}

void foo(dpct::sparse::descriptor_ptr handle, oneapi::mkl::transpose trans_a,
         std::shared_ptr<dpct::sparse::matrix_info> descr_a, int c_nnz,
         std::shared_ptr<dpct::sparse::matrix_info> descr_b,
         std::shared_ptr<dpct::sparse::matrix_info> descr_c,
         const float *val_a_s, const int *row_ptr_a, const int *col_ind_a,
         const float *val_b_s, const int *row_ptr_b, const int *col_ind_b,
         float *val_c_s, int *row_ptr_c, int *col_ind_c) {
  dpct::sparse::csrgemm_nnz(handle, oneapi::mkl::transpose::nontrans,
                            oneapi::mkl::transpose::nontrans, 3, 4, 3, descr_a,
                            4, val_a_s, row_ptr_a, col_ind_a, descr_b, 5,
                            val_b_s, row_ptr_b, col_ind_b, descr_c, row_ptr_c,
                            &c_nnz);
  bar(handle, trans_a, descr_a, c_nnz, descr_b, descr_c, val_a_s, row_ptr_a,
      col_ind_a, val_b_s, row_ptr_b, col_ind_b, val_c_s, row_ptr_c, col_ind_c);
}

Select Your Language

Using Intel.com Search

Quick Links

Recent Searches

Advanced Search

Only search in

Intel® DPC++ Compatibility Tool Developer Guide and Reference

DPCT1134

Message

Detailed Help

Suggestions to Fix