OpenRadioss 2025.1.11
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lapacke_sgebrd_work.c File Reference
#include "lapacke_utils.h"

Go to the source code of this file.

Functions

lapack_int LAPACKE_sgebrd_work (int matrix_layout, lapack_int m, lapack_int n, float *a, lapack_int lda, float *d, float *e, float *tauq, float *taup, float *work, lapack_int lwork)

Function Documentation

◆ LAPACKE_sgebrd_work()

lapack_int LAPACKE_sgebrd_work ( int matrix_layout,
lapack_int m,
lapack_int n,
float * a,
lapack_int lda,
float * d,
float * e,
float * tauq,
float * taup,
float * work,
lapack_int lwork )

Definition at line 35 of file lapacke_sgebrd_work.c.

39{
40 lapack_int info = 0;
41 if( matrix_layout == LAPACK_COL_MAJOR ) {
42 /* Call LAPACK function and adjust info */
43 LAPACK_sgebrd( &m, &n, a, &lda, d, e, tauq, taup, work, &lwork, &info );
44 if( info < 0 ) {
45 info = info - 1;
46 }
47 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
48 lapack_int lda_t = MAX(1,m);
49 float* a_t = NULL;
50 /* Check leading dimension(s) */
51 if( lda < n ) {
52 info = -5;
53 LAPACKE_xerbla( "LAPACKE_sgebrd_work", info );
54 return info;
55 }
56 /* Query optimal working array(s) size if requested */
57 if( lwork == -1 ) {
58 LAPACK_sgebrd( &m, &n, a, &lda_t, d, e, tauq, taup, work, &lwork,
59 &info );
60 return (info < 0) ? (info - 1) : info;
61 }
62 /* Allocate memory for temporary array(s) */
63 a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
64 if( a_t == NULL ) {
66 goto exit_level_0;
67 }
68 /* Transpose input matrices */
69 LAPACKE_sge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
70 /* Call LAPACK function and adjust info */
71 LAPACK_sgebrd( &m, &n, a_t, &lda_t, d, e, tauq, taup, work, &lwork,
72 &info );
73 if( info < 0 ) {
74 info = info - 1;
75 }
76 /* Transpose output matrices */
77 LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
78 /* Release memory and exit */
79 LAPACKE_free( a_t );
80exit_level_0:
81 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
82 LAPACKE_xerbla( "LAPACKE_sgebrd_work", info );
83 }
84 } else {
85 info = -1;
86 LAPACKE_xerbla( "LAPACKE_sgebrd_work", info );
87 }
88 return info;
89}
#define lapack_int
Definition lapack.h:83
#define LAPACK_sgebrd
Definition lapack.h:1430
#define LAPACK_COL_MAJOR
Definition lapacke.h:53
#define LAPACKE_free(p)
Definition lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition lapacke.h:52
#define LAPACKE_malloc(size)
Definition lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition lapacke.h:56
void LAPACKE_xerbla(const char *name, lapack_int info)
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#define MAX(x, y)
n