LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapacke_sgejsv_work.c
Go to the documentation of this file.
1 /*****************************************************************************
2  Copyright (c) 2014, Intel Corp.
3  All rights reserved.
4 
5  Redistribution and use in source and binary forms, with or without
6  modification, are permitted provided that the following conditions are met:
7 
8  * Redistributions of source code must retain the above copyright notice,
9  this list of conditions and the following disclaimer.
10  * Redistributions in binary form must reproduce the above copyright
11  notice, this list of conditions and the following disclaimer in the
12  documentation and/or other materials provided with the distribution.
13  * Neither the name of Intel Corporation nor the names of its contributors
14  may be used to endorse or promote products derived from this software
15  without specific prior written permission.
16 
17  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18  AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21  LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
22  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24  INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25  CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26  ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
27  THE POSSIBILITY OF SUCH DAMAGE.
28 *****************************************************************************
29 * Contents: Native middle-level C interface to LAPACK function sgejsv
30 * Author: Intel Corporation
31 * Generated June 2016
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_sgejsv_work( int matrix_layout, char joba, char jobu,
37  char jobv, char jobr, char jobt, char jobp,
38  lapack_int m, lapack_int n, float* a,
39  lapack_int lda, float* sva, float* u,
40  lapack_int ldu, float* v, lapack_int ldv,
41  float* work, lapack_int lwork,
42  lapack_int* iwork )
43 {
44  lapack_int info = 0;
45  if( matrix_layout == LAPACK_COL_MAJOR ) {
46  /* Call LAPACK function and adjust info */
47  LAPACK_sgejsv( &joba, &jobu, &jobv, &jobr, &jobt, &jobp, &m, &n, a,
48  &lda, sva, u, &ldu, v, &ldv, work, &lwork, iwork,
49  &info );
50  if( info < 0 ) {
51  info = info - 1;
52  }
53  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
54  lapack_int nu = LAPACKE_lsame( jobu, 'n' ) ? 1 : m;
55  lapack_int nv = LAPACKE_lsame( jobv, 'n' ) ? 1 : n;
56  lapack_int ncols_u = LAPACKE_lsame( jobu, 'n' ) ? 1 :
57  LAPACKE_lsame( jobu, 'f' ) ? m : n;
58  lapack_int lda_t = MAX(1,m);
59  lapack_int ldu_t = MAX(1,nu);
60  lapack_int ldv_t = MAX(1,nv);
61  float* a_t = NULL;
62  float* u_t = NULL;
63  float* v_t = NULL;
64  /* Check leading dimension(s) */
65  if( lda < n ) {
66  info = -11;
67  LAPACKE_xerbla( "LAPACKE_sgejsv_work", info );
68  return info;
69  }
70  if( ldu < ncols_u ) {
71  info = -14;
72  LAPACKE_xerbla( "LAPACKE_sgejsv_work", info );
73  return info;
74  }
75  if( ldv < n ) {
76  info = -16;
77  LAPACKE_xerbla( "LAPACKE_sgejsv_work", info );
78  return info;
79  }
80  /* Allocate memory for temporary array(s) */
81  a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
82  if( a_t == NULL ) {
84  goto exit_level_0;
85  }
86  if( LAPACKE_lsame( jobu, 'f' ) || LAPACKE_lsame( jobu, 'u' ) ||
87  LAPACKE_lsame( jobu, 'w' ) ) {
88  u_t = (float*)LAPACKE_malloc( sizeof(float) * ldu_t * MAX(1,ncols_u) );
89  if( u_t == NULL ) {
91  goto exit_level_1;
92  }
93  }
94  if( LAPACKE_lsame( jobv, 'j' ) || LAPACKE_lsame( jobv, 'v' ) ||
95  LAPACKE_lsame( jobv, 'w' ) ) {
96  v_t = (float*)LAPACKE_malloc( sizeof(float) * ldv_t * MAX(1,n) );
97  if( v_t == NULL ) {
99  goto exit_level_2;
100  }
101  }
102  /* Transpose input matrices */
103  LAPACKE_sge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
104  /* Call LAPACK function and adjust info */
105  LAPACK_sgejsv( &joba, &jobu, &jobv, &jobr, &jobt, &jobp, &m, &n, a_t,
106  &lda_t, sva, u_t, &ldu_t, v_t, &ldv_t, work, &lwork,
107  iwork, &info );
108  if( info < 0 ) {
109  info = info - 1;
110  }
111  /* Transpose output matrices */
112  if( LAPACKE_lsame( jobu, 'f' ) || LAPACKE_lsame( jobu, 'u' ) ||
113  LAPACKE_lsame( jobu, 'w' ) ) {
114  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nu, ncols_u, u_t, ldu_t, u, ldu );
115  }
116  if( LAPACKE_lsame( jobv, 'j' ) || LAPACKE_lsame( jobv, 'v' ) ||
117  LAPACKE_lsame( jobv, 'w' ) ) {
118  LAPACKE_sge_trans( LAPACK_COL_MAJOR, nv, n, v_t, ldv_t, v, ldv );
119  }
120  /* Release memory and exit */
121  if( LAPACKE_lsame( jobv, 'j' ) || LAPACKE_lsame( jobv, 'v' ) ||
122  LAPACKE_lsame( jobv, 'w' ) ) {
123  LAPACKE_free( v_t );
124  }
125 exit_level_2:
126  if( LAPACKE_lsame( jobu, 'f' ) || LAPACKE_lsame( jobu, 'u' ) ||
127  LAPACKE_lsame( jobu, 'w' ) ) {
128  LAPACKE_free( u_t );
129  }
130 exit_level_1:
131  LAPACKE_free( a_t );
132 exit_level_0:
133  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
134  LAPACKE_xerbla( "LAPACKE_sgejsv_work", info );
135  }
136  } else {
137  info = -1;
138  LAPACKE_xerbla( "LAPACKE_sgejsv_work", info );
139  }
140  return info;
141 }
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
lapack_int LAPACKE_sgejsv_work(int matrix_layout, char joba, char jobu, char jobv, char jobr, char jobt, char jobp, lapack_int m, lapack_int n, float *a, lapack_int lda, float *sva, float *u, lapack_int ldu, float *v, lapack_int ldv, float *work, lapack_int lwork, lapack_int *iwork)
void LAPACK_sgejsv(char *joba, char *jobu, char *jobv, char *jobr, char *jobt, char *jobp, lapack_int *m, lapack_int *n, float *a, lapack_int *lda, float *sva, float *u, lapack_int *ldu, float *v, lapack_int *ldv, float *work, lapack_int *lwork, lapack_int *iwork, 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:47
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define LAPACKE_malloc(size)
Definition: lapacke.h:110
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:36
#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