PaStiX Handbook  6.2.1
core_srqrcp.c File Reference
#include "common.h"
#include <cblas.h>
#include <lapacke.h>
#include "blend/solver.h"
#include "pastix_scores.h"
#include "pastix_slrcores.h"
#include "s_nan_check.h"

Go to the source code of this file.

Functions

int core_srqrcp (float tol, pastix_int_t maxrank, int refine, pastix_int_t nb, pastix_int_t m, pastix_int_t n, float *A, pastix_int_t lda, pastix_int_t *jpvt, float *tau, float *work, pastix_int_t lwork, float *rwork)
 Compute a randomized QR factorization. More...
 
pastix_fixdbl_t core_sge2lr_rqrcp (int use_reltol, pastix_fixdbl_t tol, pastix_int_t rklimit, pastix_int_t m, pastix_int_t n, const void *A, pastix_int_t lda, pastix_lrblock_t *Alr)
 Convert a full rank matrix in a low rank matrix, using RQRCP. More...
 
pastix_fixdbl_t core_srradd_rqrcp (const pastix_lr_t *lowrank, pastix_trans_t transA1, const void *alphaptr, pastix_int_t M1, pastix_int_t N1, const pastix_lrblock_t *A, pastix_int_t M2, pastix_int_t N2, pastix_lrblock_t *B, pastix_int_t offx, pastix_int_t offy)
 Add two LR structures A=(-u1) v1^T and B=u2 v2^T into u2 v2^T. More...
 

Detailed Description

PaStiX Rank-revealing QR kernel beased on randomization technique and partial QR with column pivoting.

Version
6.2.0
Author
Claire Soyez-Martin
Esragul Korkmaz
Mathieu Faverge
Date
2020-03-02
Generated arithmetic file\n from /builds/solverstack/pastix/kernels/core_zrqrcp.c, normal z -> s, Tue Apr 12 09:38:39 2022

Definition in file core_srqrcp.c.