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

lapack_int LAPACKE_stprfb_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 float *v, lapack_int ldv, const float *t, lapack_int ldt, float *a, lapack_int lda, float *b, lapack_int ldb, const float *work, lapack_int ldwork)
 

Function Documentation

lapack_int LAPACKE_stprfb_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 float *  v,
lapack_int  ldv,
const float *  t,
lapack_int  ldt,
float *  a,
lapack_int  lda,
float *  b,
lapack_int  ldb,
const float *  work,
lapack_int  ldwork 
)

Definition at line 36 of file lapacke_stprfb_work.c.

43 {
44  lapack_int info = 0;
45  if( matrix_order == LAPACK_COL_MAJOR ) {
46  /* Call LAPACK function and adjust info */
47  LAPACK_stprfb( &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_order == LAPACK_ROW_MAJOR ) {
53  lapack_int r = LAPACKE_lsame( side, 'r' ) ? k : k;
54  lapack_int lda_t = MAX(1,k);
55  lapack_int ldb_t = MAX(1,m);
56  lapack_int ldt_t = MAX(1,ldt);
57  lapack_int ldv_t = MAX(1,ldv);
58  float* v_t = NULL;
59  float* t_t = NULL;
60  float* a_t = NULL;
61  float* b_t = NULL;
62  /* Check leading dimension(s) */
63  if( lda < m ) {
64  info = -15;
65  LAPACKE_xerbla( "LAPACKE_stprfb_work", info );
66  return info;
67  }
68  if( ldb < n ) {
69  info = -17;
70  LAPACKE_xerbla( "LAPACKE_stprfb_work", info );
71  return info;
72  }
73  if( ldt < k ) {
74  info = -13;
75  LAPACKE_xerbla( "LAPACKE_stprfb_work", info );
76  return info;
77  }
78  if( ldv < k ) {
79  info = -11;
80  LAPACKE_xerbla( "LAPACKE_stprfb_work", info );
81  return info;
82  }
83  /* Allocate memory for temporary array(s) */
84  v_t = (float*)LAPACKE_malloc( sizeof(float) * ldv_t * MAX(1,k) );
85  if( v_t == NULL ) {
87  goto exit_level_0;
88  }
89  t_t = (float*)LAPACKE_malloc( sizeof(float) * ldt_t * MAX(1,k) );
90  if( t_t == NULL ) {
92  goto exit_level_1;
93  }
94  a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,m) );
95  if( a_t == NULL ) {
97  goto exit_level_2;
98  }
99  b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,n) );
100  if( b_t == NULL ) {
102  goto exit_level_3;
103  }
104  /* Transpose input matrices */
105  LAPACKE_sge_trans( matrix_order, ldv, k, v, ldv, v_t, ldv_t );
106  LAPACKE_sge_trans( matrix_order, ldt, k, t, ldt, t_t, ldt_t );
107  LAPACKE_sge_trans( matrix_order, k, m, a, lda, a_t, lda_t );
108  LAPACKE_sge_trans( matrix_order, m, n, b, ldb, b_t, ldb_t );
109  /* Call LAPACK function and adjust info */
110  LAPACK_stprfb( &side, &trans, &direct, &storev, &m, &n, &k, &l, v_t,
111  &ldv_t, t_t, &ldt_t, a_t, &lda_t, b_t, &ldb_t, work,
112  &ldwork );
113  info = 0; /* LAPACK call is ok! */
114  /* Transpose output matrices */
115  LAPACKE_sge_trans( LAPACK_COL_MAJOR, k, m, a_t, lda_t, a, lda );
116  LAPACKE_sge_trans( LAPACK_COL_MAJOR, m, n, b_t, ldb_t, b, ldb );
117  /* Release memory and exit */
118  LAPACKE_free( b_t );
119 exit_level_3:
120  LAPACKE_free( a_t );
121 exit_level_2:
122  LAPACKE_free( t_t );
123 exit_level_1:
124  LAPACKE_free( v_t );
125 exit_level_0:
126  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
127  LAPACKE_xerbla( "LAPACKE_stprfb_work", info );
128  }
129  } else {
130  info = -1;
131  LAPACKE_xerbla( "LAPACKE_stprfb_work", info );
132  }
133  return info;
134 }
void LAPACKE_sge_trans(int matrix_order, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#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
void LAPACK_stprfb(char *side, char *trans, char *direct, char *storev, lapack_int *m, lapack_int *n, lapack_int *k, lapack_int *l, const float *v, lapack_int *ldv, const float *t, lapack_int *ldt, float *a, lapack_int *lda, float *b, lapack_int *ldb, const float *work, lapack_int *ldwork)
#define LAPACKE_free(p)
Definition: lapacke.h:113
#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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