core_spotrfsp.c File Reference

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

Go to the source code of this file.

Functions
static void	core_spotf2sp (pastix_int_t n, float *A, pastix_int_t lda, pastix_int_t *nbpivots, float criterion)
	Compute the sequential static pivoting Cholesky factorization of the matrix n-by-n A = L * L^t . More...
int	cpucblk_spotrfsp1d_potrf (SolverMatrix *solvmtx, SolverCblk *cblk, void *dataL)
	Compute the Cholesky factorization of the diagonal block in a panel. More...
int	cpucblk_spotrfsp1d_panel (SolverMatrix *solvmtx, SolverCblk *cblk, void *L)
	Compute the Cholesky factorization of one panel. More...
int	cpucblk_spotrfsp1d (SolverMatrix *solvmtx, SolverCblk *cblk, float *work, pastix_int_t lwork)
	Perform the Cholesky factorization of a given panel and apply all its updates. More...
int	cpucblk_spotrfsp1dplus (SolverMatrix *solvmtx, SolverCblk *cblk)
	Perform the Cholesky factorization of a given panel and submit tasks for the subsequent updates. More...
void	cpucblk_spotrfsp1dplus_update (SolverMatrix *solvmtx, SolverBlok *blok, float *work, pastix_int_t lwork)
	Apply the updates of the cholesky factorisation of a given panel. More...
PastixFloat LAPACK kernels
void	core_spotrfsp (pastix_int_t n, float *A, pastix_int_t lda, pastix_int_t *nbpivots, float criterion)
	Compute the block static pivoting Cholesky factorization of the matrix n-by-n A = L * L^t . More...

Detailed Description

PaStiX kernel routines for Cholesky factorization.

Copyright

2011-2024 Bordeaux INP, CNRS (LaBRI UMR 5800), Inria, Univ. Bordeaux. All rights reserved.

Version

6.4.0

Author

Mathieu Faverge

Pierre Ramet

Xavier Lacoste

Gregoire Pichon

Nolan Bredel

Date

2024-07-05

Generated arithmetic file

from /builds/solverstack/pastix/kernels/core_zpotrfsp.c, normal z -> s, Tue Oct 8 14:17:22 2024

Definition in file core_spotrfsp.c.

Function Documentation

core_spotf2sp()

static void core_spotf2sp ( pastix_int_t  n, float *  A, pastix_int_t  lda, pastix_int_t *  nbpivots, float  criterion  )

inlinestatic

Compute the sequential static pivoting Cholesky factorization of the matrix n-by-n A = L * L^t .

Parameters

[in]	n	The number of rows and columns of the matrix A.
[in,out]	A	The matrix A to factorize with Cholesky 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.

Warning

This routine will fail if it discovers a null or negative value on the diagonal during factorization.

Definition at line 68 of file core_spotrfsp.c.

References pastix_int_t.

Referenced by core_spotrfsp().