rocsparse_coo2csr Interface Reference

• hipfort_rocsparse
• rocsparse_coo2csr

Public Member Functions | List of all members

hipfort_rocsparse::rocsparse_coo2csr Interface Reference

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

Public Member Functions
integer(kind(rocsparse_status_success)) function	rocsparse_coo2csr_ (handle, coo_row_ind, nnz, m, csr_row_ptr, idx_base)
integer(kind(rocsparse_status_success)) function	rocsparse_coo2csr_rank_0 (handle, coo_row_ind, nnz, m, csr_row_ptr, idx_base)
integer(kind(rocsparse_status_success)) function	rocsparse_coo2csr_rank_1 (handle, coo_row_ind, nnz, m, csr_row_ptr, idx_base)

Detailed Description

Convert a sparse COO matrix into a sparse CSR matrix.

rocsparse_coo2csr converts the COO array containing the row indices into a CSR array of row offsets that point to the start of every row. It is assumed that the COO row index array is sorted.

rocsparse_coo2csr can also be used to convert a COO array containing the column indices into a CSC array of column offsets that point to the start of every column. In this case it is assumed that the COO column index array is sorted instead.

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]	coo_row_ind	- array of nnz elements containing the row indices of the sparse COO matrix.
[in]	nnz	- number of non-zero entries of the sparse CSR matrix.
[in]	m	- number of rows of the sparse CSR matrix.
[out]	csr_row_ptr	- array of m+1 elements that point to the start of every row of the sparse CSR 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	coo_row_ind or csr_row_ptr pointer is invalid.

Example

This example converts a COO matrix into a CSR matrix.

Member Function/Subroutine Documentation

◆ rocsparse_coo2csr_()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_coo2csr::rocsparse_coo2csr_	(	type(c_ptr), value	handle,
		type(c_ptr), value	coo_row_ind,
		integer(c_int), value	nnz,
		integer(c_int), value	m,
		type(c_ptr), value	csr_row_ptr,
		integer(kind(rocsparse_index_base_zero)), value	idx_base
	)

◆ rocsparse_coo2csr_rank_0()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_coo2csr::rocsparse_coo2csr_rank_0	(	type(c_ptr)	handle,
		integer(c_int), target	coo_row_ind,
		integer(c_int)	nnz,
		integer(c_int)	m,
		integer(c_int), target	csr_row_ptr,
		integer(kind(rocsparse_index_base_zero))	idx_base
	)

◆ rocsparse_coo2csr_rank_1()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_coo2csr::rocsparse_coo2csr_rank_1	(	type(c_ptr)	handle,
		integer(c_int), dimension(:), target	coo_row_ind,
		integer(c_int)	nnz,
		integer(c_int)	m,
		integer(c_int), dimension(:), target	csr_row_ptr,
		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