rocsparse_csr2coo Interface Reference

• hipfort_rocsparse
• rocsparse_csr2coo

Public Member Functions | List of all members

hipfort_rocsparse::rocsparse_csr2coo Interface Reference

Convert a sparse CSR matrix into a sparse COO matrix. More...

Public Member Functions
integer(kind(rocsparse_status_success)) function	rocsparse_csr2coo_ (handle, csr_row_ptr, nnz, m, coo_row_ind, idx_base)
integer(kind(rocsparse_status_success)) function	rocsparse_csr2coo_rank_0 (handle, csr_row_ptr, nnz, m, coo_row_ind, idx_base)
integer(kind(rocsparse_status_success)) function	rocsparse_csr2coo_rank_1 (handle, csr_row_ptr, nnz, m, coo_row_ind, idx_base)

Detailed Description

Convert a sparse CSR matrix into a sparse COO matrix.

rocsparse_csr2coo converts the CSR array containing the row offsets that point to the start of every row into a COO array of row indices.

rocsparse_csr2coo can also be used to convert a CSC array containing the column offsets into a COO array of column indices.

Note

This function is non-blocking and executed asynchronously with respect to the host. It can return before the actual computation has finished.

This routine supports execution in a hipGraph context.

Parameters

[in]	handle	- handle to the rocSPARSE library context queue.
[in]	csr_row_ptr	- array of m+1 elements that point to the start of every row of the sparse CSR matrix.
[in]	nnz	- number of non-zero entries of the sparse CSR matrix.
[in]	m	- number of rows of the sparse CSR matrix.
[out]	coo_row_ind	- array of nnz elements containing the row indices of the sparse COO matrix.
[in]	idx_base	- rocsparse_index_base_zero or rocsparse_index_base_one.

Return values

rocsparse_status_success	the operation completed successfully.
rocsparse_status_invalid_handle	the library context was not initialized.
rocsparse_status_invalid_size	m or nnz is invalid.
rocsparse_status_invalid_pointer	csr_row_ptr or coo_row_ind pointer is invalid.
rocsparse_status_arch_mismatch	the device is not supported.

Example

This example converts a CSR matrix into a COO matrix.

Member Function/Subroutine Documentation

◆ rocsparse_csr2coo_()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_csr2coo::rocsparse_csr2coo_	(	type(c_ptr), value	handle,
		type(c_ptr), value	csr_row_ptr,
		integer(c_int), value	nnz,
		integer(c_int), value	m,
		type(c_ptr), value	coo_row_ind,
		integer(kind(rocsparse_index_base_zero)), value	idx_base
	)

◆ rocsparse_csr2coo_rank_0()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_csr2coo::rocsparse_csr2coo_rank_0	(	type(c_ptr)	handle,
		integer(c_int), target	csr_row_ptr,
		integer(c_int)	nnz,
		integer(c_int)	m,
		integer(c_int), target	coo_row_ind,
		integer(kind(rocsparse_index_base_zero))	idx_base
	)

◆ rocsparse_csr2coo_rank_1()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_csr2coo::rocsparse_csr2coo_rank_1	(	type(c_ptr)	handle,
		integer(c_int), dimension(:), target	csr_row_ptr,
		integer(c_int)	nnz,
		integer(c_int)	m,
		integer(c_int), dimension(:), target	coo_row_ind,
		integer(kind(rocsparse_index_base_zero))	idx_base
	)

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The documentation for this interface was generated from the following file:

• hipfort_rocsparse.F90