rocsparse_sbsrilu0_analysis Interface Reference

• hipfort_rocsparse
• rocsparse_sbsrilu0_analysis

Public Member Functions | List of all members

hipfort_rocsparse::rocsparse_sbsrilu0_analysis Interface Reference

Public Member Functions
integer(kind(rocsparse_status_success)) function	rocsparse_sbsrilu0_analysis_ (handle, dir, mb, nnzb, descr, bsr_val, bsr_row_ptr, bsr_col_ind, block_dim, myinfo, analysis, solve, temp_buffer)
integer(kind(rocsparse_status_success)) function	rocsparse_sbsrilu0_analysis_rank_0 (handle, dir, mb, nnzb, descr, bsr_val, bsr_row_ptr, bsr_col_ind, block_dim, myinfo, analysis, solve, temp_buffer)
integer(kind(rocsparse_status_success)) function	rocsparse_sbsrilu0_analysis_rank_1 (handle, dir, mb, nnzb, descr, bsr_val, bsr_row_ptr, bsr_col_ind, block_dim, myinfo, analysis, solve, temp_buffer)

Detailed Description

rocsparse_bsrilu0_analysis performs the analysis step for rocsparse_Xbsrilu0(). It is expected that this function will be executed only once for a given matrix. The analysis metadata can be cleared by rocsparse_bsrilu0_clear().

rocsparse_bsrilu0_analysis can share its metadata with rocsparse_Xbsric0_analysis(), rocsparse_Xbsrsv_analysis(), and rocsparse_Xbsrsm_analysis(). Selecting rocsparse_analysis_policy_reuse policy can greatly improve the computation performance of metadata. However, the user needs to ensure that the sparsity pattern remains unchanged. If this cannot be assured, rocsparse_analysis_policy_force must be used.

Note

If the matrix sparsity pattern changes, the gathered information will become invalid.

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]	dir	- direction that specified whether to count non-zero elements by rocsparse_direction_row or by rocsparse_direction_column.
[in]	mb	- number of block rows in the sparse BSR matrix.
[in]	nnzb	- number of non-zero block entries of the sparse BSR matrix.
[in]	descr	- descriptor of the sparse BSR matrix.
[in]	bsr_val	- array of length nnzb*block_dim*block_dim containing the values of the sparse BSR matrix.
[in]	bsr_row_ptr	- array of mb+1 elements that point to the start of every block row of the sparse BSR matrix.
[in]	bsr_col_ind	- array of nnzb elements containing the block column indices of the sparse BSR matrix.
[in]	block_dim	- the block dimension of the BSR matrix. Between 1 and m, where m=mb*block_dim.
[out]	myInfo	- structure that holds the information collected during the analysis step.
[in]	analysis	- rocsparse_analysis_policy_reuse or rocsparse_analysis_policy_force.
[in]	solve	- rocsparse_solve_policy_auto.
[in]	temp_buffer	- temporary storage buffer allocated by the user.

Return values

rocsparse_status_success	the operation completed successfully.
rocsparse_status_invalid_handle	the library context was not initialized.
rocsparse_status_invalid_size	mb, nnzb, or block_dim is invalid.
rocsparse_status_invalid_pointer	descr, bsr_val, bsr_row_ptr, bsr_col_ind, info, or temp_buffer pointer is invalid.
rocsparse_status_internal_error	an internal error occurred.
rocsparse_status_not_implemented	rocsparse_matrix_type != rocsparse_matrix_type_general.

Member Function/Subroutine Documentation

◆ rocsparse_sbsrilu0_analysis_()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_sbsrilu0_analysis::rocsparse_sbsrilu0_analysis_	(	type(c_ptr), value	handle,
		integer(kind(rocsparse_direction_row)), value	dir,
		integer(c_int), value	mb,
		integer(c_int), value	nnzb,
		type(c_ptr), value	descr,
		type(c_ptr), value	bsr_val,
		type(c_ptr), value	bsr_row_ptr,
		type(c_ptr), value	bsr_col_ind,
		integer(c_int), value	block_dim,
		type(c_ptr), value	myinfo,
		integer(kind(rocsparse_analysis_policy_reuse)), value	analysis,
		integer(kind(rocsparse_solve_policy_auto)), value	solve,
		type(c_ptr), value	temp_buffer
	)

◆ rocsparse_sbsrilu0_analysis_rank_0()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_sbsrilu0_analysis::rocsparse_sbsrilu0_analysis_rank_0	(	type(c_ptr)	handle,
		integer(kind(rocsparse_direction_row))	dir,
		integer(c_int)	mb,
		integer(c_int)	nnzb,
		type(c_ptr)	descr,
		real(c_float), target	bsr_val,
		integer(c_int), target	bsr_row_ptr,
		integer(c_int), target	bsr_col_ind,
		integer(c_int)	block_dim,
		type(c_ptr)	myinfo,
		integer(kind(rocsparse_analysis_policy_reuse))	analysis,
		integer(kind(rocsparse_solve_policy_auto))	solve,
		type(c_ptr)	temp_buffer
	)

◆ rocsparse_sbsrilu0_analysis_rank_1()

integer(kind(rocsparse_status_success)) function hipfort_rocsparse::rocsparse_sbsrilu0_analysis::rocsparse_sbsrilu0_analysis_rank_1	(	type(c_ptr)	handle,
		integer(kind(rocsparse_direction_row))	dir,
		integer(c_int)	mb,
		integer(c_int)	nnzb,
		type(c_ptr)	descr,
		real(c_float), dimension(:), target	bsr_val,
		integer(c_int), dimension(:), target	bsr_row_ptr,
		integer(c_int), dimension(:), target	bsr_col_ind,
		integer(c_int)	block_dim,
		type(c_ptr)	myinfo,
		integer(kind(rocsparse_analysis_policy_reuse))	analysis,
		integer(kind(rocsparse_solve_policy_auto))	solve,
		type(c_ptr)	temp_buffer
	)

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

• hipfort_rocsparse.F90