LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_dtprfb_work()

lapack_int LAPACKE_dtprfb_work ( int  matrix_layout,
char  side,
char  trans,
char  direct,
char  storev,
lapack_int  m,
lapack_int  n,
lapack_int  k,
lapack_int  l,
const double *  v,
lapack_int  ldv,
const double *  t,
lapack_int  ldt,
double *  a,
lapack_int  lda,
double *  b,
lapack_int  ldb,
double *  work,
lapack_int  ldwork 
)

Definition at line 36 of file lapacke_dtprfb_work.c.

43 {
44  lapack_int info = 0;
45  if( matrix_layout == LAPACK_COL_MAJOR ) {
46  /* Call LAPACK function and adjust info */
47  LAPACK_dtprfb( &side, &trans, &direct, &storev, &m, &n, &k, &l, v, &ldv,
48  t, &ldt, a, &lda, b, &ldb, work, &ldwork );
49  if( info < 0 ) {
50  info = info - 1;
51  }
52  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
53  lapack_int lda_t = MAX(1,k);
54  lapack_int ldb_t = MAX(1,m);
55  lapack_int ldt_t = MAX(1,ldt);
56  lapack_int ldv_t = MAX(1,ldv);
57  double* v_t = NULL;
58  double* t_t = NULL;
59  double* a_t = NULL;
60  double* b_t = NULL;
61  /* Check leading dimension(s) */
62  if( lda < m ) {
63  info = -15;
64  LAPACKE_xerbla( "LAPACKE_dtprfb_work", info );
65  return info;
66  }
67  if( ldb < n ) {
68  info = -17;
69  LAPACKE_xerbla( "LAPACKE_dtprfb_work", info );
70  return info;
71  }
72  if( ldt < k ) {
73  info = -13;
74  LAPACKE_xerbla( "LAPACKE_dtprfb_work", info );
75  return info;
76  }
77  if( ldv < k ) {
78  info = -11;
79  LAPACKE_xerbla( "LAPACKE_dtprfb_work", info );
80  return info;
81  }
82  /* Allocate memory for temporary array(s) */
83  v_t = (double*)LAPACKE_malloc( sizeof(double) * ldv_t * MAX(1,k) );
84  if( v_t == NULL ) {
86  goto exit_level_0;
87  }
88  t_t = (double*)LAPACKE_malloc( sizeof(double) * ldt_t * MAX(1,k) );
89  if( t_t == NULL ) {
91  goto exit_level_1;
92  }
93  a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,m) );
94  if( a_t == NULL ) {
96  goto exit_level_2;
97  }
98  b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,n) );
99  if( b_t == NULL ) {
101  goto exit_level_3;
102  }
103  /* Transpose input matrices */
104  LAPACKE_dge_trans( matrix_layout, ldv, k, v, ldv, v_t, ldv_t );
105  LAPACKE_dge_trans( matrix_layout, ldt, k, t, ldt, t_t, ldt_t );
106  LAPACKE_dge_trans( matrix_layout, k, m, a, lda, a_t, lda_t );
107  LAPACKE_dge_trans( matrix_layout, m, n, b, ldb, b_t, ldb_t );
108  /* Call LAPACK function and adjust info */
109  LAPACK_dtprfb( &side, &trans, &direct, &storev, &m, &n, &k, &l, v_t,
110  &ldv_t, t_t, &ldt_t, a_t, &lda_t, b_t, &ldb_t, work,
111  &ldwork );
112  info = 0; /* LAPACK call is ok! */
113  /* Transpose output matrices */
114  LAPACKE_dge_trans( LAPACK_COL_MAJOR, k, m, a_t, lda_t, a, lda );
115  LAPACKE_dge_trans( LAPACK_COL_MAJOR, m, n, b_t, ldb_t, b, ldb );
116  /* Release memory and exit */
117  LAPACKE_free( b_t );
118 exit_level_3:
119  LAPACKE_free( a_t );
120 exit_level_2:
121  LAPACKE_free( t_t );
122 exit_level_1:
123  LAPACKE_free( v_t );
124 exit_level_0:
125  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
126  LAPACKE_xerbla( "LAPACKE_dtprfb_work", info );
127  }
128  } else {
129  info = -1;
130  LAPACKE_xerbla( "LAPACKE_dtprfb_work", info );
131  }
132  return info;
133 }
void LAPACKE_dge_trans(int matrix_layout, lapack_int m, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
void LAPACK_dtprfb(char *side, char *trans, char *direct, char *storev, lapack_int *m, lapack_int *n, lapack_int *k, lapack_int *l, const double *v, lapack_int *ldv, const double *t, lapack_int *ldt, double *a, lapack_int *lda, double *b, lapack_int *ldb, const double *work, lapack_int *ldwork)
#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
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:123
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