oneapi::mkl::sparse::sort

oneMKL - Data Parallel C++ Developer Reference

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ID 772045

Date 3/31/2021

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oneapi::mkl::sparse::sort_matrix

Performs in-place sorting of user-provided matrix arrays in a matrix handle.

Description
API

Description

NOTE:

Refer to Error Handling for a detailed description of the possible exceptions thrown.

The oneapi::mkl::sparse::sort_matrix API performs in-place sorting of user-provided sparse matrix arrays stored in a given sparse matrix handle.

NOTE:

This routine modifies user-arrays provided to oneMKL through the matrix handle creation routines, oneapi::mkl::sparse::set_<sparse_matrix_type>_data.

API

Syntax

NOTE:

Currently, complex types are not supported.

Using USM and SYCL buffers:

namespace oneapi::mkl::sparse {
    sycl::event sort_matrix (
        sycl::queue &queue,
        oneapi::mkl::sparse::matrix_handle_t handle,
        const std::vector<sycl::event> &dependencies = {});
}

Include Files

oneapi/mkl/spblas.hpp

Input Parameters

queue: Specifies the SYCL command queue which will be used for SYCL kernels execution.
handle: Handle to object containing sparse matrix and other internal data. Created using one of the oneapi::mkl::sparse::set_<sparse_matrix_type>_data routines.

NOTE:
Currently, the only supported matrix format for <sparse_matrix_type> is the csr format.
dependencies: A vector of type std::vector<sycl::event> & containing the list of events that the oneapi::mkl::sparse::sort_matrix routine depends on.

Return Values

sycl::event

SYCL event which can be waited upon or added as a dependency for the completion of the sort_matrix routine.

// Examples of API arguments and usage
sycl::event ev_opt = sparse::sort_matrix(queue, handle);               // Allowed use in case of USM
sycl::event ev_opt = sparse::sort_matrix(queue, handle, {});           // Allowed use in case of USM
sycl::event ev_opt = sparse::sort_matrix(queue, handle, dependencies); // Allowed use in case of USM
sparse::sort_matrix(queue, handle);                                    // Recommended use in case of sycl::buffer
sparse::sort_matrix(queue, handle, {});                                // Not recommended in case of sycl::buffer, but supported;
sparse::sort_matrix(queue, handle, dependencies);                      // Not recommended in case of sycl::buffer, but supported;
sycl::event ev_opt = sparse::sort_matrix(queue, handle);               // Not recommended in case of sycl::buffer, but supported. Note that most sycl::buffer oneMKL APIs do not have ability to pass in dependencies

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oneMKL - Data Parallel C++ Developer Reference

oneapi::mkl::sparse::sort_matrix

Description

API