LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dggsvd3()

lapack_int LAPACKE_dggsvd3 ( int  matrix_layout,
char  jobu,
char  jobv,
char  jobq,
lapack_int  m,
lapack_int  n,
lapack_int  p,
lapack_int k,
lapack_int l,
double *  a,
lapack_int  lda,
double *  b,
lapack_int  ldb,
double *  alpha,
double *  beta,
double *  u,
lapack_int  ldu,
double *  v,
lapack_int  ldv,
double *  q,
lapack_int  ldq,
lapack_int iwork 
)

Definition at line 35 of file lapacke_dggsvd3.c.

42 {
43  lapack_int info = 0;
44  double* work = NULL;
45  lapack_int lwork = -1;
46  double work_query;
47  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
48  LAPACKE_xerbla( "LAPACKE_dggsvd3", -1 );
49  return -1;
50  }
51 #ifndef LAPACK_DISABLE_NAN_CHECK
52  if( LAPACKE_get_nancheck() ) {
53  /* Optionally check input matrices for NaNs */
54  if( LAPACKE_dge_nancheck( matrix_layout, m, n, a, lda ) ) {
55  return -10;
56  }
57  if( LAPACKE_dge_nancheck( matrix_layout, p, n, b, ldb ) ) {
58  return -12;
59  }
60  }
61 #endif
62  info = LAPACKE_dggsvd3_work( matrix_layout, jobu, jobv, jobq, m, n, p, k, l,
63  a, lda, b, ldb, alpha, beta, u, ldu, v, ldv, q,
64  ldq, &work_query, lwork, iwork );
65  if( info != 0 )
66  goto exit_level_0;
67  lwork = work_query;
68  /* Allocate memory for working array(s) */
69  work = (double*)LAPACKE_malloc( sizeof(double) * lwork );
70  if( work == NULL ) {
72  goto exit_level_0;
73  }
74  /* Call middle-level interface */
75  info = LAPACKE_dggsvd3_work( matrix_layout, jobu, jobv, jobq, m, n, p, k, l,
76  a, lda, b, ldb, alpha, beta, u, ldu, v, ldv, q,
77  ldq, work, lwork, iwork );
78  /* Release memory and exit */
79  LAPACKE_free( work );
80 exit_level_0:
81  if( info == LAPACK_WORK_MEMORY_ERROR ) {
82  LAPACKE_xerbla( "LAPACKE_dggsvd3", info );
83  }
84  return info;
85 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
lapack_int LAPACKE_dggsvd3_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, double *a, lapack_int lda, double *b, lapack_int ldb, double *alpha, double *beta, double *u, lapack_int ldu, double *v, lapack_int ldv, double *q, lapack_int ldq, double *work, lapack_int lwork, lapack_int *iwork)
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
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