Intel® oneAPI Math Kernel Library (oneMKL) - Data Parallel C++ Developer Reference

Developer Reference

Contents

oneapi::mkl::sparse::release_matrix_handle

Releases internal data and sets
oneapi::mkl::sparse::matrix_handle_t
 object to NULL.

Description

The
oneapi::mkl::sparse::release_matrix_handle
 routine releases (also waits for the dependencies to be finished when provided) any internal data that the
oneapi::mkl::sparse::matrix_handle_t
 object holds and sets it with default values, otherwise throws an exception.
Refer to Exceptions for a detailed description of the exceptions thrown.

API

Syntax
namespace oneapi::mkl::sparse {
    void release_matrix_handle (
        oneapi::mkl::sparse::matrix_handle_t *handle,
        const std::vector<cl::sycl::event> & dependencies ={});
}
Include Files
  • oneapi/mkl/spblas.hpp
Input Parameters
handle
Handle to object containing sparse matrix and other internal data. Initialized with
oneapi::mkl::sparse::init_matrix_handle
 routine and filled with user data using one of the
oneapi::mkl::sparse::set_<sparse_matrix_type>_data
 routines. The
oneapi::mkl::sparse::optimize_xxx
 routines may have also created additional internally allocated data which would need to be released. User provided data is not release, but ownership passes back to the user for proper handling.
Currently, the only supported case for
<sparse_matrix_type>
 is csr.
dependencies
A vector of type
std::vector<cl::sycl::event>
 containing the list of events that handle depends on before resetting it to default values.

Product and Performance Information

1

Performance varies by use, configuration and other factors. Learn more at www.Intel.com/PerformanceIndex.