LAPACK  3.5.0
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lapacke_sormbr_work.c File Reference
#include "lapacke_utils.h"
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Functions

lapack_int LAPACKE_sormbr_work (int matrix_order, char vect, char side, char trans, lapack_int m, lapack_int n, lapack_int k, const float *a, lapack_int lda, const float *tau, float *c, lapack_int ldc, float *work, lapack_int lwork)
 

Function Documentation

lapack_int LAPACKE_sormbr_work ( int  matrix_order,
char  vect,
char  side,
char  trans,
lapack_int  m,
lapack_int  n,
lapack_int  k,
const float *  a,
lapack_int  lda,
const float *  tau,
float *  c,
lapack_int  ldc,
float *  work,
lapack_int  lwork 
)

Definition at line 36 of file lapacke_sormbr_work.c.

41 {
42  lapack_int info = 0;
43  lapack_int nq, r;
44  lapack_int lda_t, ldc_t;
45  float *a_t = NULL, *c_t = NULL;
46  if( matrix_order == LAPACK_COL_MAJOR ) {
47  /* Call LAPACK function and adjust info */
48  LAPACK_sormbr( &vect, &side, &trans, &m, &n, &k, a, &lda, tau, c, &ldc,
49  work, &lwork, &info );
50  if( info < 0 ) {
51  info = info - 1;
52  }
53  } else if( matrix_order == LAPACK_ROW_MAJOR ) {
54  nq = LAPACKE_lsame( side, 'l' ) ? m : n;
55  r = LAPACKE_lsame( vect, 'q' ) ? nq : MIN(nq,k);
56  lda_t = MAX(1,r);
57  ldc_t = MAX(1,m);
58  /* Check leading dimension(s) */
59  if( lda < MIN(nq,k) ) {
60  info = -9;
61  LAPACKE_xerbla( "LAPACKE_sormbr_work", info );
62  return info;
63  }
64  if( ldc < n ) {
65  info = -12;
66  LAPACKE_xerbla( "LAPACKE_sormbr_work", info );
67  return info;
68  }
69  /* Query optimal working array(s) size if requested */
70  if( lwork == -1 ) {
71  LAPACK_sormbr( &vect, &side, &trans, &m, &n, &k, a, &lda_t, tau, c,
72  &ldc_t, work, &lwork, &info );
73  return (info < 0) ? (info - 1) : info;
74  }
75  /* Allocate memory for temporary array(s) */
76  a_t = (float*)
77  LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,MIN(nq,k)) );
78  if( a_t == NULL ) {
80  goto exit_level_0;
81  }
82  c_t = (float*)LAPACKE_malloc( sizeof(float) * ldc_t * MAX(1,n) );
83  if( c_t == NULL ) {
85  goto exit_level_1;
86  }
87  /* Transpose input matrices */
88  LAPACKE_sge_trans( matrix_order, r, MIN(nq,k), a, lda, a_t, lda_t );
89  LAPACKE_sge_trans( matrix_order, m, n, c, ldc, c_t, ldc_t );
90  /* Call LAPACK function and adjust info */
91  LAPACK_sormbr( &vect, &side, &trans, &m, &n, &k, a_t, &lda_t, tau, c_t,
92  &ldc_t, work, &lwork, &info );
93  if( info < 0 ) {
94  info = info - 1;
95  }
96  /* Transpose output matrices */
97  LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, c_t, ldc_t, c, ldc );
98  /* Release memory and exit */
99  LAPACKE_free( c_t );
100 exit_level_1:
101  LAPACKE_free( a_t );
102 exit_level_0:
103  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
104  LAPACKE_xerbla( "LAPACKE_sormbr_work", info );
105  }
106  } else {
107  info = -1;
108  LAPACKE_xerbla( "LAPACKE_sormbr_work", info );
109  }
110  return info;
111 }
void LAPACKE_sge_trans(int matrix_order, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
void LAPACK_sormbr(char *vect, char *side, char *trans, lapack_int *m, lapack_int *n, lapack_int *k, const float *a, lapack_int *lda, const float *tau, float *c, lapack_int *ldc, float *work, lapack_int *lwork, lapack_int *info)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
#define MAX(x, y)
Definition: lapacke_utils.h:47
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define MIN(x, y)
Definition: lapacke_utils.h:50
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#define lapack_int
Definition: lapacke.h:47

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