rocsparse_ell2csr_nnz Interface Reference

• hipfort_rocsparse
• rocsparse_ell2csr_nnz

Public Member Functions | List of all members

hipfort_rocsparse::rocsparse_ell2csr_nnz Interface Reference

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

This function takes a sparse ELL matrix as input and computes the row offset array, csr_row_ptr, and the total number of non-zeros, csr_nnz, that will result from converting the ELL format input matrix to a CSR format output matrix. This function is the first step in the conversion and is used in conjunction with rocsparse_Xell2csr(). It is assumed that csr_row_ptr has been allocated with size m+1.

Note

This function is blocking with respect to the host.

This routine does not support execution in a hipGraph context.

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.F90