LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_sggsvp()

lapack_int LAPACKE_sggsvp ( int  matrix_layout,
char  jobu,
char  jobv,
char  jobq,
lapack_int  m,
lapack_int  p,
lapack_int  n,
float *  a,
lapack_int  lda,
float *  b,
lapack_int  ldb,
float  tola,
float  tolb,
lapack_int k,
lapack_int l,
float *  u,
lapack_int  ldu,
float *  v,
lapack_int  ldv,
float *  q,
lapack_int  ldq 
)

Definition at line 36 of file lapacke_sggsvp.c.

42 {
43  lapack_int info = 0;
44  lapack_int* iwork = NULL;
45  float* tau = NULL;
46  float* work = NULL;
47  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
48  LAPACKE_xerbla( "LAPACKE_sggsvp", -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_sge_nancheck( matrix_layout, m, n, a, lda ) ) {
55  return -8;
56  }
57  if( LAPACKE_sge_nancheck( matrix_layout, p, n, b, ldb ) ) {
58  return -10;
59  }
60  if( LAPACKE_s_nancheck( 1, &tola, 1 ) ) {
61  return -12;
62  }
63  if( LAPACKE_s_nancheck( 1, &tolb, 1 ) ) {
64  return -13;
65  }
66  }
67 #endif
68  /* Allocate memory for working array(s) */
69  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
70  if( iwork == NULL ) {
72  goto exit_level_0;
73  }
74  tau = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,n) );
75  if( tau == NULL ) {
77  goto exit_level_1;
78  }
79  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,MAX3(3*n,m,p)) );
80  if( work == NULL ) {
82  goto exit_level_2;
83  }
84  /* Call middle-level interface */
85  info = LAPACKE_sggsvp_work( matrix_layout, jobu, jobv, jobq, m, p, n, a, lda,
86  b, ldb, tola, tolb, k, l, u, ldu, v, ldv, q,
87  ldq, iwork, tau, work );
88  /* Release memory and exit */
89  LAPACKE_free( work );
90 exit_level_2:
91  LAPACKE_free( tau );
92 exit_level_1:
93  LAPACKE_free( iwork );
94 exit_level_0:
95  if( info == LAPACK_WORK_MEMORY_ERROR ) {
96  LAPACKE_xerbla( "LAPACKE_sggsvp", info );
97  }
98  return info;
99 }
lapack_int LAPACKE_sggsvp_work(int matrix_layout, char jobu, char jobv, char jobq, lapack_int m, lapack_int p, lapack_int n, float *a, lapack_int lda, float *b, lapack_int ldb, float tola, float tolb, lapack_int *k, lapack_int *l, float *u, lapack_int ldu, float *v, lapack_int ldv, float *q, lapack_int ldq, lapack_int *iwork, float *tau, float *work)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:122
#define LAPACKE_free(p)
Definition: lapacke.h:113
lapack_logical LAPACKE_sge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const float *a, lapack_int lda)
lapack_logical LAPACKE_s_nancheck(lapack_int n, const float *x, lapack_int incx)
#define MAX3(x, y, z)
Definition: lapacke_utils.h:53
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define lapack_int
Definition: lapacke.h:47
int LAPACKE_get_nancheck()
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