LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_stgsja()

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

Definition at line 36 of file lapacke_stgsja.c.

43 {
44  lapack_int info = 0;
45  float* work = NULL;
46  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
47  LAPACKE_xerbla( "LAPACKE_stgsja", -1 );
48  return -1;
49  }
50 #ifndef LAPACK_DISABLE_NAN_CHECK
51  if( LAPACKE_get_nancheck() ) {
52  /* Optionally check input matrices for NaNs */
53  if( LAPACKE_sge_nancheck( matrix_layout, m, n, a, lda ) ) {
54  return -10;
55  }
56  if( LAPACKE_sge_nancheck( matrix_layout, p, n, b, ldb ) ) {
57  return -12;
58  }
59  if( LAPACKE_lsame( jobq, 'i' ) || LAPACKE_lsame( jobq, 'q' ) ) {
60  if( LAPACKE_sge_nancheck( matrix_layout, n, n, q, ldq ) ) {
61  return -22;
62  }
63  }
64  if( LAPACKE_s_nancheck( 1, &tola, 1 ) ) {
65  return -14;
66  }
67  if( LAPACKE_s_nancheck( 1, &tolb, 1 ) ) {
68  return -15;
69  }
70  if( LAPACKE_lsame( jobu, 'i' ) || LAPACKE_lsame( jobu, 'u' ) ) {
71  if( LAPACKE_sge_nancheck( matrix_layout, m, m, u, ldu ) ) {
72  return -18;
73  }
74  }
75  if( LAPACKE_lsame( jobv, 'i' ) || LAPACKE_lsame( jobv, 'v' ) ) {
76  if( LAPACKE_sge_nancheck( matrix_layout, p, p, v, ldv ) ) {
77  return -20;
78  }
79  }
80  }
81 #endif
82  /* Allocate memory for working array(s) */
83  work = (float*)LAPACKE_malloc( sizeof(float) * MAX(1,2*n) );
84  if( work == NULL ) {
86  goto exit_level_0;
87  }
88  /* Call middle-level interface */
89  info = LAPACKE_stgsja_work( matrix_layout, jobu, jobv, jobq, m, p, n, k, l,
90  a, lda, b, ldb, tola, tolb, alpha, beta, u, ldu,
91  v, ldv, q, ldq, work, ncycle );
92  /* Release memory and exit */
93  LAPACKE_free( work );
94 exit_level_0:
95  if( info == LAPACK_WORK_MEMORY_ERROR ) {
96  LAPACKE_xerbla( "LAPACKE_stgsja", info );
97  }
98  return info;
99 }
lapack_int LAPACKE_stgsja_work(int matrix_layout, char jobu, char jobv, char jobq, lapack_int m, lapack_int p, lapack_int n, lapack_int k, lapack_int l, float *a, lapack_int lda, float *b, lapack_int ldb, float tola, float tolb, float *alpha, float *beta, float *u, lapack_int ldu, float *v, lapack_int ldv, float *q, lapack_int ldq, float *work, lapack_int *ncycle)
#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 MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#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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