LAPACK  3.10.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_sorgtsqr_row_work()

lapack_int LAPACKE_sorgtsqr_row_work ( int  matrix_layout,
lapack_int  m,
lapack_int  n,
lapack_int  mb,
lapack_int  nb,
float *  a,
lapack_int  lda,
const float *  t,
lapack_int  ldt,
float *  work,
lapack_int  lwork 
)

Definition at line 35 of file lapacke_sorgtsqr_row_work.c.

40 {
41  lapack_int info = 0;
42  if (matrix_layout == LAPACK_COL_MAJOR) {
43  /* Call LAPACK function and adjust info */
44  LAPACK_sorgtsqr_row( &m, &n, &mb, &nb, a, &lda, t, &ldt,
45  work, &lwork, &info);
46  if (info < 0) {
47  info = info - 1;
48  }
49  } else if (matrix_layout == LAPACK_ROW_MAJOR) {
50  lapack_int lda_t = MAX(1,m);
51  float* a_t = NULL;
52  /* Check leading dimension(s) */
53  if( lda < n ) {
54  info = -7;
55  LAPACKE_xerbla( "LAPACKE_sorgtsqr_row_work", info );
56  return info;
57  }
58  lapack_int ldt_t = MAX(1,nb);
59  float* t_t = NULL;
60  /* Check leading dimension(s) */
61  if( ldt < n ) {
62  info = -9;
63  LAPACKE_xerbla( "LAPACKE_sorgtsqr_row_work", info );
64  return info;
65  }
66  /* Query optimal working array(s) size if requested */
67  if( lwork == -1 ) {
68  LAPACK_sorgtsqr_row( &m, &n, &mb, &nb, a, &lda_t, t, &ldt_t,
69  work, &lwork, &info );
70  return (info < 0) ? (info - 1) : info;
71  }
72  /* Allocate memory for temporary array(s) */
73  a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
74  if( a_t == NULL ) {
76  goto exit_level_0;
77  }
78  t_t = (float*)LAPACKE_malloc( sizeof(float) * ldt_t * MAX(1,n) );
79  if( t_t == NULL ) {
81  goto exit_level_1;
82  }
83  /* Transpose input matrices */
84  LAPACKE_sge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
85  LAPACKE_sge_trans( matrix_layout, nb, n, a, lda, t_t, ldt_t );
86  /* Call LAPACK function and adjust info */
87  LAPACK_sorgtsqr_row( &m, &n, &mb, &nb, a_t, &lda_t, t_t, &ldt_t,
88  work, &lwork, &info );
89  if( info < 0 ) {
90  info = info - 1;
91  }
92  /* Transpose output matrices */
93  LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
94 
95  /* Release memory and exit */
96  LAPACKE_free( t_t );
97 exit_level_1:
98  LAPACKE_free( a_t );
99 exit_level_0:
100  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
101  LAPACKE_xerbla( "LAPACKE_sorgtsqr_row_work", info );
102  }
103  } else {
104  info = -1;
105  LAPACKE_xerbla( "LAPACKE_sorgtsqr_row_work", info );
106  }
107  return info;
108 }
#define lapack_int
Definition: lapack.h:83
void LAPACK_sorgtsqr_row(lapack_int const *m, lapack_int const *n, lapack_int const *mb, lapack_int const *nb, float *A, lapack_int const *lda, float const *T, lapack_int const *ldt, float *work, lapack_int const *lwork, lapack_int *info)
#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
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)
Definition: lapacke_utils.h:46
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