rocsparse_sdense2csc Interface Reference

• hipfort_rocsparse
• rocsparse_sdense2csc

Public Member Functions | List of all members

hipfort_rocsparse::rocsparse_sdense2csc Interface Reference

This function converts the matrix \(A\) in column-oriented dense format into a sparse matrix in CSC format. More...

Public Member Functions
integer(kind(rocsparse_status_success)) function	rocsparse_sdense2csc_ (handle, m, n, descr, a, ld, nnz_per_columns, csc_val, csc_col_ptr, csc_row_ind)
integer(kind(rocsparse_status_success)) function	rocsparse_sdense2csc_rank_0 (handle, m, n, descr, a, ld, nnz_per_columns, csc_val, csc_col_ptr, csc_row_ind)
integer(kind(rocsparse_status_success)) function	rocsparse_sdense2csc_rank_1 (handle, m, n, descr, a, ld, nnz_per_columns, csc_val, csc_col_ptr, csc_row_ind)
integer(kind(rocsparse_status_success)) function	rocsparse_sdense2csc_full_rank (handle, m, n, descr, a, ld, nnz_per_columns, csc_val, csc_col_ptr, csc_row_ind)

Detailed Description

This function converts the matrix \(A\) in column-oriented dense format into a sparse matrix in CSC format.

All the parameters are assumed to have been preallocated by the user, and the arrays are filled in based on nnz_per_columns, which can be pre-computed with rocsparse_Xnnz().

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 column-oriented dense matrix A.
[in]	n	- number of columns of the column-oriented dense matrix A.
[in]	descr	- the descriptor of the column-oriented dense matrix A. The supported matrix type is rocsparse_matrix_type_general and also any valid value of the rocsparse_index_base.
[in]	A	- column-oriented dense matrix of dimensions (ld, n).
[in]	ld	- leading dimension of the column-oriented dense matrix A.
[in]	nnz_per_columns	- array of size n containing the number of non-zero elements per column.
[out]	csc_val	- array of nnz ( = csc_col_ptr[n] - csc_col_ptr[0] ) non-zero elements of matrix A.
[out]	csc_col_ptr	- integer array of n+1 elements that contains the start of every column and the end of the last column plus one.
[out]	csc_row_ind	- integer array of nnz ( = csc_col_ptr[n] - csc_col_ptr[0] ) column indices of the non-zero elements of matrix A.

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 ld is invalid.
rocsparse_status_invalid_pointer	A, nnz_per_columns, csc_val, csc_col_ptr, or csc_row_ind pointer is invalid.

Example

Member Function/Subroutine Documentation

◆ rocsparse_sdense2csc_()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_sdense2csc::rocsparse_sdense2csc_	(	type(c_ptr), value	handle,
		integer(c_int), value	m,
		integer(c_int), value	n,
		type(c_ptr), value	descr,
		type(c_ptr), value	a,
		integer(c_int), value	ld,
		type(c_ptr), value	nnz_per_columns,
		type(c_ptr), value	csc_val,
		type(c_ptr), value	csc_col_ptr,
		type(c_ptr), value	csc_row_ind
	)

◆ rocsparse_sdense2csc_full_rank()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_sdense2csc::rocsparse_sdense2csc_full_rank	(	type(c_ptr)	handle,
		integer(c_int)	m,
		integer(c_int)	n,
		type(c_ptr)	descr,
		real(c_float), dimension(:,:), target	a,
		integer(c_int)	ld,
		integer(c_int), dimension(:), target	nnz_per_columns,
		real(c_float), dimension(:), target	csc_val,
		integer(c_int), dimension(:), target	csc_col_ptr,
		integer(c_int), dimension(:), target	csc_row_ind
	)

◆ rocsparse_sdense2csc_rank_0()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_sdense2csc::rocsparse_sdense2csc_rank_0	(	type(c_ptr)	handle,
		integer(c_int)	m,
		integer(c_int)	n,
		type(c_ptr)	descr,
		real(c_float), target	a,
		integer(c_int)	ld,
		integer(c_int), target	nnz_per_columns,
		real(c_float), target	csc_val,
		integer(c_int), target	csc_col_ptr,
		integer(c_int), target	csc_row_ind
	)

◆ rocsparse_sdense2csc_rank_1()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_sdense2csc::rocsparse_sdense2csc_rank_1	(	type(c_ptr)	handle,
		integer(c_int)	m,
		integer(c_int)	n,
		type(c_ptr)	descr,
		real(c_float), dimension(:), target	a,
		integer(c_int)	ld,
		integer(c_int), dimension(:), target	nnz_per_columns,
		real(c_float), dimension(:), target	csc_val,
		integer(c_int), dimension(:), target	csc_col_ptr,
		integer(c_int), dimension(:), target	csc_row_ind
	)

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

• hipfort_rocsparse.F90