rocsparse_ell2csr_nnz Interface Reference

• hipfort_rocsparse
• rocsparse_ell2csr_nnz

Public Member Functions | List of all members

hipfort_rocsparse::rocsparse_ell2csr_nnz Interface Reference

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

Public Member Functions
integer(kind(rocsparse_status_success)) function	rocsparse_ell2csr_nnz_ (handle, m, n, ell_descr, ell_width, ell_col_ind, csr_descr, csr_row_ptr, csr_nnz)
integer(kind(rocsparse_status_success)) function	rocsparse_ell2csr_nnz_rank_0 (handle, m, n, ell_descr, ell_width, ell_col_ind, csr_descr, csr_row_ptr, csr_nnz)
integer(kind(rocsparse_status_success)) function	rocsparse_ell2csr_nnz_rank_1 (handle, m, n, ell_descr, ell_width, ell_col_ind, csr_descr, csr_row_ptr, csr_nnz)

Detailed Description

Convert a sparse ELL matrix into a sparse CSR matrix.

rocsparse_ell2csr_nnz computes the total CSR non-zero elements and the CSR row offsets, that point to the start of every row of the sparse CSR matrix, for a given ELL matrix. It is assumed that csr_row_ptr has been allocated with size m + 1.

Note

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

Parameters

[in]	handle	handle to the rocsparse library context queue.
[in]	m	number of rows of the sparse ELL matrix.
[in]	n	number of columns of the sparse ELL matrix.
[in]	ell_descr	descriptor of the sparse ELL matrix. Currently, only rocsparse_matrix_type_general is supported.
[in]	ell_width	number of non-zero elements per row in ELL storage format.
[in]	ell_col_ind	array of m times ell_width elements containing the column indices of the sparse ELL matrix.
[in]	csr_descr	descriptor of the sparse CSR matrix. Currently, only rocsparse_matrix_type_general is supported.
[out]	csr_row_ptr	array of m+1 elements that point to the start of every row of the sparse CSR matrix.
[out]	csr_nnz	pointer to the total number of non-zero elements in CSR storage format.

Return values

rocsparse_status_success	the operation completed successfully.
rocsparse_status_invalid_handle	the library context was not initialized.
rocsparse_status_invalid_size	m, n or ell_width is invalid.
rocsparse_status_invalid_pointer	ell_descr, ell_col_ind, csr_descr, csr_row_ptr or csr_nnz pointer is invalid.
rocsparse_status_not_implemented	rocsparse_matrix_type != rocsparse_matrix_type_general.

Member Function/Subroutine Documentation

◆ rocsparse_ell2csr_nnz_()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_ell2csr_nnz::rocsparse_ell2csr_nnz_	(	type(c_ptr), value	handle,
		integer(c_int), value	m,
		integer(c_int), value	n,
		type(c_ptr), value	ell_descr,
		integer(c_int), value	ell_width,
		type(c_ptr), value	ell_col_ind,
		type(c_ptr), value	csr_descr,
		type(c_ptr), value	csr_row_ptr,
		type(c_ptr), value	csr_nnz
	)

◆ rocsparse_ell2csr_nnz_rank_0()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_ell2csr_nnz::rocsparse_ell2csr_nnz_rank_0	(	type(c_ptr)	handle,
		integer(c_int)	m,
		integer(c_int)	n,
		type(c_ptr)	ell_descr,
		integer(c_int)	ell_width,
		integer(c_int), target	ell_col_ind,
		type(c_ptr)	csr_descr,
		integer(c_int), target	csr_row_ptr,
		integer(c_int), target	csr_nnz
	)

◆ rocsparse_ell2csr_nnz_rank_1()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_ell2csr_nnz::rocsparse_ell2csr_nnz_rank_1	(	type(c_ptr)	handle,
		integer(c_int)	m,
		integer(c_int)	n,
		type(c_ptr)	ell_descr,
		integer(c_int)	ell_width,
		integer(c_int), dimension(:), target	ell_col_ind,
		type(c_ptr)	csr_descr,
		integer(c_int), dimension(:), target	csr_row_ptr,
		integer(c_int), dimension(:), target	csr_nnz
	)

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

• hipfort_rocsparse.f