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

Go to the source code of this file.

Functions

lapack_int LAPACKE_sstedc_work (int matrix_layout, char compz, lapack_int n, float *d, float *e, float *z, lapack_int ldz, float *work, lapack_int lwork, lapack_int *iwork, lapack_int liwork)

Function Documentation

◆ LAPACKE_sstedc_work()

lapack_int LAPACKE_sstedc_work ( int matrix_layout,
char compz,
lapack_int n,
float * d,
float * e,
float * z,
lapack_int ldz,
float * work,
lapack_int lwork,
lapack_int * iwork,
lapack_int liwork )

Definition at line 35 of file lapacke_sstedc_work.c.

39{
40 lapack_int info = 0;
41 if( matrix_layout == LAPACK_COL_MAJOR ) {
42 /* Call LAPACK function and adjust info */
43 LAPACK_sstedc( &compz, &n, d, e, z, &ldz, work, &lwork, iwork, &liwork,
44 &info );
45 if( info < 0 ) {
46 info = info - 1;
47 }
48 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
49 lapack_int ldz_t = MAX(1,n);
50 float* z_t = NULL;
51 /* Check leading dimension(s) */
52 if( ldz < n ) {
53 info = -7;
54 LAPACKE_xerbla( "LAPACKE_sstedc_work", info );
55 return info;
56 }
57 /* Query optimal working array(s) size if requested */
58 if( liwork == -1 || lwork == -1 ) {
59 LAPACK_sstedc( &compz, &n, d, e, z, &ldz_t, work, &lwork, iwork,
60 &liwork, &info );
61 return (info < 0) ? (info - 1) : info;
62 }
63 /* Allocate memory for temporary array(s) */
64 if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
65 z_t = (float*)LAPACKE_malloc( sizeof(float) * ldz_t * MAX(1,n) );
66 if( z_t == NULL ) {
68 goto exit_level_0;
69 }
70 }
71 /* Transpose input matrices */
72 if( LAPACKE_lsame( compz, 'v' ) ) {
73 LAPACKE_sge_trans( matrix_layout, n, n, z, ldz, z_t, ldz_t );
74 }
75 /* Call LAPACK function and adjust info */
76 LAPACK_sstedc( &compz, &n, d, e, z_t, &ldz_t, work, &lwork, iwork,
77 &liwork, &info );
78 if( info < 0 ) {
79 info = info - 1;
80 }
81 /* Transpose output matrices */
82 if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
83 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
84 }
85 /* Release memory and exit */
86 if( LAPACKE_lsame( compz, 'i' ) || LAPACKE_lsame( compz, 'v' ) ) {
87 LAPACKE_free( z_t );
88 }
89exit_level_0:
90 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
91 LAPACKE_xerbla( "LAPACKE_sstedc_work", info );
92 }
93 } else {
94 info = -1;
95 LAPACKE_xerbla( "LAPACKE_sstedc_work", info );
96 }
97 return info;
98}
#define lapack_int
Definition lapack.h:83
#define LAPACK_sstedc(...)
Definition lapack.h:16177
#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
lapack_logical LAPACKE_lsame(char ca, char cb)
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