release_matrix_handle

Releases internal data and sets matrix_handle_t object to NULL.

Description and Assumptions

The oneapi::mkl::sparse::release_matrix_handle releases any internal data that the matrix_handle_t object holds and sets it with defaults values, otherwise it throws an exception. The routine also waits for the dependencies to be finished before releasing any data in case of USM.

Syntax

namespace oneapi::mkl::sparse {

   void release_matrix_handle (oneapi::mkl::sparse::matrix_handle_t  handle,
                               const sycl::vector_class<sycl::event> &dependencies = {});

}

Input parameter

handle

Handle to object containing sparse matrix and other internal data. Created using one of the oneapi::mkl::sparse::set_<sparse_matrix_type>_structure routines.

dependencies

List of events that handle depends on. The call waits on the events(if any) before resetting the handle to default values.

Throws

This routine shall throw the following exceptions if the associated condition is detected. An implementation may throw additional implementation-specific exception(s) in case of error conditions not covered here.

oneapi::mkl::device_bad_alloc
oneapi::mkl::host_bad_alloc
oneapi::mkl::invalid_argument
oneapi::mkl::unimplemented
oneapi::mkl::uninitialized
oneapi::mkl::unsupported_device

Parent topic: Sparse BLAS

init_matrix_handle set_csr_data