Visible to Intel only — GUID: GUID-1EA9BBCE-AF68-4BE0-99BB-B95FF2BFC68C
Visible to Intel only — GUID: GUID-1EA9BBCE-AF68-4BE0-99BB-B95FF2BFC68C
oneapi::mkl::sparse::get_matmat_data
Queries the oneapi::mkl::sparse::matrix_view_descr and oneapi::mkl::transpose values in the oneapi::mkl::sparse::matmat_descr_t object reflecting the sparse::matmat operation to be performed: .
Description
The oneapi::mkl::sparse::get_matmat_data routine enables user to query the enum values set for the sparse matrix - sparse matrix operation in the oneapi::mkl::sparse::matmat_descr_t object which will be used in the sparse::matmat routine.
The oneapi::mkl::sparse::matrix_view_descr enum class is defined in the oneapi/mkl/spblas.hpp header file
namespace oneapi::mkl::sparse { enum class matrix_view_descr : std::int32_t { general }; }
where general view assumes all data is populated in the sparse::matrix_handle_t object for both lower, diagonal and upper portions of the matrix. A common usage model for the matmat descriptor is the following:
using namespace oneapi::mkl; sparse::matmat_descr_t descr = NULL; sparse::init_matmat_descr(descr); // someone sets matmat descr // query what was in descr sparse::matrix_view_descr viewA, viewB, viewC; transpose opA, opB; sparse::get_matmat_data(descr, viewA, opA, viewV, opB, viewC); sparse::release_matmat_descr(descr);
API
Syntax
namespace oneapi::mkl::sparse { void get_matmat_descr ( sparse::matmat_descr_t descr, sparse::matrix_view_descr &viewA, transpose &opA, sparse::matrix_view_descr &viewB, transpose &opB, sparse::matrix_view_descr &viewC); }
Include Files
oneapi/mkl/spblas.hpp
Input Parameters
- descr
-
sparse::matmat_descr_t object used to define the sparse matrix - sparse matrix operation to be performed by the sparse::matmat routine.
Output Parameters
- viewA, viewB, viewC
-
sparse::matrix_view_descr enum values describing how the , and matrix representations are to be viewed. Currently, only the general type is supported.
- opA, opB
-
Specifies operation op() on input matrix.
oneapi::mkl::transpose::nontrans
Non-transpose, .
oneapi::mkl::transpose::trans
Transpose, .
oneapi::mkl::transpose::conjtrans
Conjugate transpose, .
NOTE:Currently, the only supported case for operation is oneapi::mkl::transpose::nontrans.