core_dgetrfsp.c File Reference

#include "common.h"
#include "cblas.h"
#include "blend/solver.h"
#include "pastix_dcores.h"
#include "kernels_trace.h"

Go to the source code of this file.

Functions
static void	core_dgetf2sp (pastix_int_t m, pastix_int_t n, double *A, pastix_int_t lda, pastix_int_t *nbpivots, double criterion)
	Compute the sequential static pivoting LU factorization of the matrix m-by-n A = L * U. More...
void	core_dgetrfsp (pastix_int_t n, double *A, pastix_int_t lda, pastix_int_t *nbpivots, double criterion)
	Compute the block static pivoting LU factorization of the matrix m-by-n A = L * U. More...
int	cpucblk_dgetrfsp1d_getrf (SolverMatrix *solvmtx, SolverCblk *cblk, void *dataL, void *dataU)
	Compute the LU factorization of the diagonal block in a panel. More...
int	cpucblk_dgetrfsp1d_panel (SolverMatrix *solvmtx, SolverCblk *cblk, void *L, void *U)
	Compute the LU factorization of one panel. More...
int	cpucblk_dgetrfsp1d (SolverMatrix *solvmtx, SolverCblk *cblk, double *work, pastix_int_t lwork)
	Perform the LU factorization of a given panel and apply all its updates. More...
int	cpucblk_dgetrfsp1dplus (SolverMatrix *solvmtx, SolverCblk *cblk)
	Perform the LU factorization of a given panel and submit tasks for the subsequent updates. More...
void	cpucblk_dgetrfsp1dplus_update (SolverMatrix *solvmtx, SolverBlok *blok, double *work, pastix_int_t lwork)
	Apply the updates of the LU factorisation of a given panel. More...

Detailed Description

PaStiX kernel routines for LU factorization.

Copyright

2011-2023 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria, Univ. Bordeaux. All rights reserved.

Version

6.3.2

Author

Mathieu Faverge

Pierre Ramet

Xavier Lacoste

Gregoire Pichon

Date

2023-12-11

Generated arithmetic file

from /builds/solverstack/pastix/kernels/core_zgetrfsp.c, normal z -> d, Wed Dec 13 12:09:14 2023

Definition in file core_dgetrfsp.c.

Function Documentation

core_dgetf2sp()

static void core_dgetf2sp ( pastix_int_t  m, pastix_int_t  n, double *  A, pastix_int_t  lda, pastix_int_t *  nbpivots, double  criterion  )

inlinestatic

Compute the sequential static pivoting LU factorization of the matrix m-by-n A = L * U.

Parameters

[in]	m	The number of rows and columns of the matrix A.
[in]	n	The number of rows and columns of the matrix A.
[in,out]	A	The matrix A to factorize with LU factorization. The matrix is of size lda -by- n.
[in]	lda	The leading dimension of the matrix A.
[in,out]	nbpivots	Pointer to the number of piovting operations made during factorization. It is updated during this call
[in]	criterion	Threshold use for static pivoting. If diagonal value is under this threshold, its value is replaced by the threshold and the number of pivots is incremented.

Definition at line 65 of file core_dgetrfsp.c.

References pastix_int_t.

Referenced by core_dgetrfsp().