oneapi::mkl::sparse::release_matmat_descr¶
Releases oneapi::mkl::sparse::matmat_descr_t
object and sets it to NULL.
Description¶
The oneapi::mkl::sparse::release_matmat_descr
routine releases
the oneapi::mkl::sparse::matmat_descr_t
object and sets it to NULL.
A common usage model for the matmat
descriptor is the following
using namespace oneapi::mkl;
sparse::matmat_descr_t descr = nullptr;
sparse::init_matmat_descr(&descr);
// example descriptor for general
// C = A * B
sparse::matrix_view_descr viewA = sparse::matrix_view_descr::general;
sparse::matrix_view_descr viewB = sparse::matrix_view_descr::general;
sparse::matrix_view_descr viewC = sparse::matrix_view_descr::general;
transpose opA = transpose::nontrans;
transpose opB = transpose::nontrans;
sparse::set_matmat_data(descr, viewA, opA, viewB, opB, viewC);
// use descr in sparse::matmat() api
sparse::release_matmat_descr(&descr);
API¶
Syntax¶
namespace oneapi::mkl::sparse {
void release_matmat_descr ( oneapi::mkl::sparse::matmat_descr_t *p_descr );
}
Include Files¶
oneapi/mkl/spblas.hpp
Input Parameters¶
- p_descr
The address of an initialized matmat descriptor object (previously allocated in
sparse::init_matmat_descr()
) to be deallocated in this routine.
Output Parameters¶
- p_descr
On return, the address will be updated to point to a null
sparse::matmat_descr_t
; the matmat descriptor object that was previously pointed to, will have been deallocated.