LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_sormtr_work()

lapack_int LAPACKE_sormtr_work ( int  matrix_layout,
char  side,
char  uplo,
char  trans,
lapack_int  m,
lapack_int  n,
const float *  a,
lapack_int  lda,
const float *  tau,
float *  c,
lapack_int  ldc,
float *  work,
lapack_int  lwork 
)

Definition at line 35 of file lapacke_sormtr_work.c.

40 {
41  lapack_int info = 0;
42  lapack_int r, lda_t, ldc_t;
43  float *a_t = NULL, *c_t = NULL;
44  if( matrix_layout == LAPACK_COL_MAJOR ) {
45  /* Call LAPACK function and adjust info */
46  LAPACK_sormtr( &side, &uplo, &trans, &m, &n, a, &lda, tau, c, &ldc,
47  work, &lwork, &info );
48  if( info < 0 ) {
49  info = info - 1;
50  }
51  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
52  r = LAPACKE_lsame( side, 'l' ) ? m : n;
53  lda_t = MAX(1,r);
54  ldc_t = MAX(1,m);
55  /* Check leading dimension(s) */
56  if( lda < r ) {
57  info = -8;
58  LAPACKE_xerbla( "LAPACKE_sormtr_work", info );
59  return info;
60  }
61  if( ldc < n ) {
62  info = -11;
63  LAPACKE_xerbla( "LAPACKE_sormtr_work", info );
64  return info;
65  }
66  /* Query optimal working array(s) size if requested */
67  if( lwork == -1 ) {
68  LAPACK_sormtr( &side, &uplo, &trans, &m, &n, a, &lda_t, tau, c,
69  &ldc_t, 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,r) );
74  if( a_t == NULL ) {
76  goto exit_level_0;
77  }
78  c_t = (float*)LAPACKE_malloc( sizeof(float) * ldc_t * MAX(1,n) );
79  if( c_t == NULL ) {
81  goto exit_level_1;
82  }
83  /* Transpose input matrices */
84  LAPACKE_sge_trans( matrix_layout, r, r, a, lda, a_t, lda_t );
85  LAPACKE_sge_trans( matrix_layout, m, n, c, ldc, c_t, ldc_t );
86  /* Call LAPACK function and adjust info */
87  LAPACK_sormtr( &side, &uplo, &trans, &m, &n, a_t, &lda_t, tau, c_t,
88  &ldc_t, 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, c_t, ldc_t, c, ldc );
94  /* Release memory and exit */
95  LAPACKE_free( c_t );
96 exit_level_1:
97  LAPACKE_free( a_t );
98 exit_level_0:
99  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
100  LAPACKE_xerbla( "LAPACKE_sormtr_work", info );
101  }
102  } else {
103  info = -1;
104  LAPACKE_xerbla( "LAPACKE_sormtr_work", info );
105  }
106  return info;
107 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_sormtr(...)
Definition: lapack.h:11799
#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
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
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
Here is the call graph for this function:
Here is the caller graph for this function: