LAPACK  3.5.0
LAPACK: Linear Algebra PACKage
lapacke_ztprfb_work.c File Reference
#include "lapacke_utils.h"
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Functions

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

Function Documentation

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

Definition at line 36 of file lapacke_ztprfb_work.c.

44 {
45  lapack_int info = 0;
46  if( matrix_order == LAPACK_COL_MAJOR ) {
47  /* Call LAPACK function and adjust info */
48  LAPACK_ztprfb( &side, &trans, &direct, &storev, &m, &n, &k, &l, v, &ldv,
49  t, &ldt, a, &lda, b, &ldb, work, &ldwork );
50  if( info < 0 ) {
51  info = info - 1;
52  }
53  } else if( matrix_order == LAPACK_ROW_MAJOR ) {
54  lapack_int r = LAPACKE_lsame( side, 'r' ) ? k : k;
55  lapack_int lda_t = MAX(1,k);
56  lapack_int ldb_t = MAX(1,m);
57  lapack_int ldt_t = MAX(1,ldt);
58  lapack_int ldv_t = MAX(1,ldv);
59  lapack_complex_double* v_t = NULL;
60  lapack_complex_double* t_t = NULL;
61  lapack_complex_double* a_t = NULL;
62  lapack_complex_double* b_t = NULL;
63  /* Check leading dimension(s) */
64  if( lda < m ) {
65  info = -15;
66  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
67  return info;
68  }
69  if( ldb < n ) {
70  info = -17;
71  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
72  return info;
73  }
74  if( ldt < k ) {
75  info = -13;
76  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
77  return info;
78  }
79  if( ldv < k ) {
80  info = -11;
81  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
82  return info;
83  }
84  /* Allocate memory for temporary array(s) */
85  v_t = (lapack_complex_double*)
86  LAPACKE_malloc( sizeof(lapack_complex_double) * ldv_t * MAX(1,k) );
87  if( v_t == NULL ) {
89  goto exit_level_0;
90  }
91  t_t = (lapack_complex_double*)
92  LAPACKE_malloc( sizeof(lapack_complex_double) * ldt_t * MAX(1,k) );
93  if( t_t == NULL ) {
95  goto exit_level_1;
96  }
97  a_t = (lapack_complex_double*)
98  LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,m) );
99  if( a_t == NULL ) {
101  goto exit_level_2;
102  }
103  b_t = (lapack_complex_double*)
104  LAPACKE_malloc( sizeof(lapack_complex_double) * ldb_t * MAX(1,n) );
105  if( b_t == NULL ) {
107  goto exit_level_3;
108  }
109  /* Transpose input matrices */
110  LAPACKE_zge_trans( matrix_order, ldv, k, v, ldv, v_t, ldv_t );
111  LAPACKE_zge_trans( matrix_order, ldt, k, t, ldt, t_t, ldt_t );
112  LAPACKE_zge_trans( matrix_order, k, m, a, lda, a_t, lda_t );
113  LAPACKE_zge_trans( matrix_order, m, n, b, ldb, b_t, ldb_t );
114  /* Call LAPACK function and adjust info */
115  LAPACK_ztprfb( &side, &trans, &direct, &storev, &m, &n, &k, &l, v_t,
116  &ldv_t, t_t, &ldt_t, a_t, &lda_t, b_t, &ldb_t, work,
117  &ldwork );
118  info = 0; /* LAPACK call is ok! */
119  /* Transpose output matrices */
120  LAPACKE_zge_trans( LAPACK_COL_MAJOR, k, m, a_t, lda_t, a, lda );
121  LAPACKE_zge_trans( LAPACK_COL_MAJOR, m, n, b_t, ldb_t, b, ldb );
122  /* Release memory and exit */
123  LAPACKE_free( b_t );
124 exit_level_3:
125  LAPACKE_free( a_t );
126 exit_level_2:
127  LAPACKE_free( t_t );
128 exit_level_1:
129  LAPACKE_free( v_t );
130 exit_level_0:
131  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
132  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
133  }
134  } else {
135  info = -1;
136  LAPACKE_xerbla( "LAPACKE_ztprfb_work", info );
137  }
138  return info;
139 }
void LAPACKE_zge_trans(int matrix_order, lapack_int m, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
#define LAPACK_COL_MAJOR
Definition: lapacke.h:120
void LAPACKE_xerbla(const char *name, lapack_int info)
void LAPACK_ztprfb(char *side, char *trans, char *direct, char *storev, lapack_int *m, lapack_int *n, lapack_int *k, lapack_int *l, const lapack_complex_double *v, lapack_int *ldv, const lapack_complex_double *t, lapack_int *ldt, lapack_complex_double *a, lapack_int *lda, lapack_complex_double *b, lapack_int *ldb, const double *work, lapack_int *ldwork)
#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 lapack_complex_double
Definition: lapacke.h:90
#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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