zpotrf.c File Reference

#include "morse.h"
#include "control/common.h"
#include "control/hicma_common.h"

Go to the source code of this file.

Functions
int	HICMA_zpotrf_Tile (MORSE_enum uplo, MORSE_desc_t *AUV, MORSE_desc_t *AD, MORSE_desc_t *Ark, int rk, int maxrk, double acc)
int	HICMA_zpotrf_Tile_Async (MORSE_enum uplo, MORSE_desc_t *AUV, MORSE_desc_t *AD, MORSE_desc_t *Ark, int rk, int maxrk, double acc, MORSE_sequence_t *sequence, MORSE_request_t *request)

Detailed Description

Copyright

(c) 2017 King Abdullah University of Science and Technology (KAUST). All rights reserved.

This file contains top-level functions for Cholesky factorization.

HiCMA is a software package provided by King Abdullah University of Science and Technology (KAUST)

Version

0.1.1

Author

Kadir Akbudak

Date

2018-11-08

Definition in file zpotrf.c.

Function Documentation

HICMA_zpotrf_Tile()

int HICMA_zpotrf_Tile	(	MORSE_enum	uplo,
		MORSE_desc_t *	AUV,
		MORSE_desc_t *	AD,
		MORSE_desc_t *	Ark,
		int	rk,
		int	maxrk,
		double	acc
	)

HICMA_zpotrf_Tile - Computes the Cholesky factorization of a symmetric positive definite matrix in tile low-rank (TLR) format. Operates on matrices stored by tiles. All matrices are passed through descriptors. All dimensions are taken from the descriptors.

Parameters

[in]	uplo	= MorseUpper: Upper triangle of A is stored (Not supported yet) = MorseLower: Lower triangle of A is stored.
[in]	A	On entry, the symmetric positive definite TLR matrix A. If uplo = MorseUpper, the leading N-by-N upper triangular part of A contains the upper triangular part of the matrix A, and the strictly lower triangular part of A is not referenced. If UPLO = 'L', the leading N-by-N lower triangular part of A contains the lower triangular part of the matrix A, and the strictly upper triangular part of A is not referenced. On exit, if return value = 0, the factor U or L from the Cholesky factorization A = L*L**H.

Returns

Return values

MORSE_SUCCESS	successful exit
>0	if i, the leading minor of order i of A is not positive definite, so the factorization could not be completed, and the solution has not been computed.

Definition at line 79 of file zpotrf.c.

HICMA_zpotrf_Tile_Async()

int HICMA_zpotrf_Tile_Async	(	MORSE_enum	uplo,
		MORSE_desc_t *	AUV,
		MORSE_desc_t *	AD,
		MORSE_desc_t *	Ark,
		int	rk,
		int	maxrk,
		double	acc,
		MORSE_sequence_t *	sequence,
		MORSE_request_t *	request
	)

HICMA_zpotrf_Tile_Async - Computes the Cholesky factorization of a symmetric positive definite positive definite matrix. Non-blocking equivalent of HICMA_zpotrf_Tile(). May return before the computation is finished. Allows for pipelining of operations at runtime.

Parameters

[in]	sequence	Identifies the sequence of function calls that this call belongs to (for completion checks and exception handling purposes).
[out]	request	Identifies this function call (for exception handling purposes).

Definition at line 132 of file zpotrf.c.