PaStiX Handbook  6.3.2
core_zpqrcp.c File Reference
#include "common.h"
#include <cblas.h>
#include <lapacke.h>
#include "blend/solver.h"
#include "pastix_zcores.h"
#include "pastix_zlrcores.h"
#include "z_nan_check.h"

Go to the source code of this file.


int core_zpqrcp (double tol, pastix_int_t maxrank, int full_update, pastix_int_t nb, pastix_int_t m, pastix_int_t n, pastix_complex64_t *A, pastix_int_t lda, pastix_int_t *jpvt, pastix_complex64_t *tau, pastix_complex64_t *work, pastix_int_t lwork, double *rwork)
 Compute a rank-reavealing QR factorization. More...
pastix_fixdbl_t core_zge2lr_pqrcp (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 PQRCP. More...
pastix_fixdbl_t core_zrradd_pqrcp (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 implementation of the partial rank-revealing QR with column pivoting based on Lapack GEQP3.

Alfredo Buttari
Gregoire Pichon
Esragul Korkmaz
Mathieu Faverge
Generated arithmetic file
from /builds/solverstack/pastix/kernels/core_zpqrcp.c, normal z -> z, Wed Dec 13 12:09:16 2023

Definition in file core_zpqrcp.c.