diag.h File Reference

#include "common.h"

Go to the source code of this file.

Functions
void	morse_pdpotrf_diag (MORSE_enum uplo, MORSE_desc_t *A, int diag_thick, MORSE_sequence_t *sequence, MORSE_request_t *request)
int	MORSE_dpotrf_diag (MORSE_enum uplo, int N, double *A, int LDA, int diag_thick)
int	MORSE_dpotrf_diag_Tile (MORSE_enum uplo, MORSE_desc_t *A, int diag_thick)
int	MORSE_dpotrf_diag_Tile_Async (MORSE_enum uplo, MORSE_desc_t *A, int diag_thick, MORSE_sequence_t *sequence, MORSE_request_t *request)

Detailed Description

Copyright (c) 2017-2018 King Abdullah University of Science and Technology All rights reserved.

ExaGeoStat is a software package provided by KAUST

ExaGeoStat approx computation main functions header file.

Version

1.0.0

Author

Sameh Abdulah

Date

2018-11-11

Definition in file diag.h.

Function Documentation

void morse_pdpotrf_diag	(	MORSE_enum	uplo,
		MORSE_desc_t *	A,
		int	diag_thick,
		MORSE_sequence_t *	sequence,
		MORSE_request_t *	request
	)

Parallel tile Cholesky factorization - dynamic scheduling

Definition at line 38 of file pdpotrf_diag.c.

int MORSE_dpotrf_diag	(	MORSE_enum	uplo,
		int	N,
		double *	A,
		int	LDA,
		int	diag_thick
	)

MORSE_dpotrf - Computes the Cholesky factorization of a symmetric positive definite (or Symmetric positive definite in the real case) matrix A. The factorization has the form

where U is an upper triangular matrix and L is a lower triangular matrix.

Parameters

[in]	uplo	= MorseUpper: Upper triangle of A is stored; = MorseLower: Lower triangle of A is stored.
[in]	N	The order of the matrix A. N >= 0.
[in,out]	A	On entry, the symmetric positive definite (or Symmetric) 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 = U**T*U or A = L*L**T.
[in]	LDA	The leading dimension of the array A. LDA >= max(1,N).

Returns

Return values

MORSE_SUCCESS	successful exit
<0	if -i, the i-th argument had an illegal value
>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.

See also

MORSE_dpotrf_Tile

MORSE_dpotrf_Tile_Async

MORSE_cpotrf

MORSE_dpotrf

MORSE_spotrf

MORSE_dpotrs

Definition at line 85 of file dpotrf_diag.c.

int MORSE_dpotrf_diag_Tile	(	MORSE_enum	uplo,
		MORSE_desc_t *	A,
		int	diag_thick
	)

MORSE_dpotrf_Tile - Computes the Cholesky factorization of a symmetric positive definite or Symmetric positive definite matrix. Tile equivalent of MORSE_dpotrf(). 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; = MorseLower: Lower triangle of A is stored.
[in]	A	On entry, the symmetric positive definite (or Symmetric) 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 = U**T*U or A = L*L**T.

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.

See also

MORSE_dpotrf

MORSE_dpotrf_Tile_Async

MORSE_cpotrf_Tile

MORSE_dpotrf_Tile

MORSE_spotrf_Tile

MORSE_dpotrs_Tile

Definition at line 198 of file dpotrf_diag.c.

int MORSE_dpotrf_diag_Tile_Async	(	MORSE_enum	uplo,
		MORSE_desc_t *	A,
		int	diag_thick,
		MORSE_sequence_t *	sequence,
		MORSE_request_t *	request
	)

MORSE_dpotrf_Tile_Async - Computes the Cholesky factorization of a symmetric positive definite or Symmetric positive definite matrix. Non-blocking equivalent of MORSE_dpotrf_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).

See also

MORSE_dpotrf

MORSE_dpotrf_Tile

MORSE_cpotrf_Tile_Async

MORSE_dpotrf_Tile_Async

MORSE_spotrf_Tile_Async

MORSE_dpotrs_Tile_Async

Definition at line 250 of file dpotrf_diag.c.