LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
Loading...
Searching...
No Matches

◆ LAPACKE_zggsvd3()

lapack_int LAPACKE_zggsvd3 ( int  matrix_layout,
char  jobu,
char  jobv,
char  jobq,
lapack_int  m,
lapack_int  n,
lapack_int  p,
lapack_int k,
lapack_int l,
lapack_complex_double a,
lapack_int  lda,
lapack_complex_double b,
lapack_int  ldb,
double *  alpha,
double *  beta,
lapack_complex_double u,
lapack_int  ldu,
lapack_complex_double v,
lapack_int  ldv,
lapack_complex_double q,
lapack_int  ldq,
lapack_int iwork 
)

Definition at line 35 of file lapacke_zggsvd3.c.

45{
46 lapack_int info = 0;
47 double* rwork = NULL;
48 lapack_int lwork = -1;
49 lapack_complex_double* work = NULL;
50 lapack_complex_double work_query;
51 if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
52 LAPACKE_xerbla( "LAPACKE_zggsvd3", -1 );
53 return -1;
54 }
55#ifndef LAPACK_DISABLE_NAN_CHECK
56 if( LAPACKE_get_nancheck() ) {
57 /* Optionally check input matrices for NaNs */
58 if( LAPACKE_zge_nancheck( matrix_layout, m, n, a, lda ) ) {
59 return -10;
60 }
61 if( LAPACKE_zge_nancheck( matrix_layout, p, n, b, ldb ) ) {
62 return -12;
63 }
64 }
65#endif
66 /* Query optimal size for working array */
67 info = LAPACKE_zggsvd3_work( matrix_layout, jobu, jobv, jobq, m, n, p, k, l,
68 a, lda, b, ldb, alpha, beta, u, ldu, v, ldv, q,
69 ldq, &work_query, lwork, rwork, iwork );
70 if( info != 0 )
71 goto exit_level_0;
72 lwork = LAPACK_Z2INT( work_query );
73 /* Allocate memory for working array(s) */
74 rwork = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,2*n) );
75 if( rwork == NULL ) {
77 goto exit_level_0;
78 }
79 work = (lapack_complex_double*)
80 LAPACKE_malloc( sizeof(lapack_complex_double) * lwork );
81 if( work == NULL ) {
83 goto exit_level_1;
84 }
85 /* Call middle-level interface */
86 info = LAPACKE_zggsvd3_work( matrix_layout, jobu, jobv, jobq, m, n, p, k, l,
87 a, lda, b, ldb, alpha, beta, u, ldu, v, ldv, q,
88 ldq, work, lwork, rwork, iwork );
89 /* Release memory and exit */
90 LAPACKE_free( work );
91exit_level_1:
92 LAPACKE_free( rwork );
93exit_level_0:
94 if( info == LAPACK_WORK_MEMORY_ERROR ) {
95 LAPACKE_xerbla( "LAPACKE_zggsvd3", info );
96 }
97 return info;
98}
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_double
Definition: lapack.h:64
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
lapack_int LAPACKE_zggsvd3_work(int matrix_layout, char jobu, char jobv, char jobq, lapack_int m, lapack_int n, lapack_int p, lapack_int *k, lapack_int *l, lapack_complex_double *a, lapack_int lda, lapack_complex_double *b, lapack_int ldb, double *alpha, double *beta, lapack_complex_double *u, lapack_int ldu, lapack_complex_double *v, lapack_int ldv, lapack_complex_double *q, lapack_int ldq, lapack_complex_double *work, lapack_int lwork, double *rwork, lapack_int *iwork)
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
int LAPACKE_get_nancheck(void)
#define LAPACK_Z2INT(x)
Definition: lapacke.h:50
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_zge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *a, lapack_int lda)
#define MAX(x, y)
Definition: lapacke_utils.h:46
Here is the call graph for this function: