LAPACK  3.9.0
LAPACK: Linear Algebra PACKage
lapacke_cggevx_work.c
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28 *****************************************************************************
29 * Contents: Native middle-level C interface to LAPACK function cggevx
30 * Author: Intel Corporation
31 * Generated November 2015
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_cggevx_work( int matrix_layout, char balanc, char jobvl,
37  char jobvr, char sense, lapack_int n,
38  lapack_complex_float* a, lapack_int lda,
39  lapack_complex_float* b, lapack_int ldb,
40  lapack_complex_float* alpha,
41  lapack_complex_float* beta,
42  lapack_complex_float* vl, lapack_int ldvl,
43  lapack_complex_float* vr, lapack_int ldvr,
44  lapack_int* ilo, lapack_int* ihi, float* lscale,
45  float* rscale, float* abnrm, float* bbnrm,
46  float* rconde, float* rcondv,
47  lapack_complex_float* work, lapack_int lwork,
48  float* rwork, lapack_int* iwork,
49  lapack_logical* bwork )
50 {
51  lapack_int info = 0;
52  if( matrix_layout == LAPACK_COL_MAJOR ) {
53  /* Call LAPACK function and adjust info */
54  LAPACK_cggevx( &balanc, &jobvl, &jobvr, &sense, &n, a, &lda, b, &ldb,
55  alpha, beta, vl, &ldvl, vr, &ldvr, ilo, ihi, lscale,
56  rscale, abnrm, bbnrm, rconde, rcondv, work, &lwork,
57  rwork, iwork, bwork, &info );
58  if( info < 0 ) {
59  info = info - 1;
60  }
61  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
62  lapack_int lda_t = MAX(1,n);
63  lapack_int ldb_t = MAX(1,n);
64  lapack_int ldvl_t = MAX(1,n);
65  lapack_int ldvr_t = MAX(1,n);
66  lapack_complex_float* a_t = NULL;
67  lapack_complex_float* b_t = NULL;
68  lapack_complex_float* vl_t = NULL;
69  lapack_complex_float* vr_t = NULL;
70  /* Check leading dimension(s) */
71  if( lda < n ) {
72  info = -8;
73  LAPACKE_xerbla( "LAPACKE_cggevx_work", info );
74  return info;
75  }
76  if( ldb < n ) {
77  info = -10;
78  LAPACKE_xerbla( "LAPACKE_cggevx_work", info );
79  return info;
80  }
81  if( ldvl < n ) {
82  info = -14;
83  LAPACKE_xerbla( "LAPACKE_cggevx_work", info );
84  return info;
85  }
86  if( ldvr < n ) {
87  info = -16;
88  LAPACKE_xerbla( "LAPACKE_cggevx_work", info );
89  return info;
90  }
91  /* Query optimal working array(s) size if requested */
92  if( lwork == -1 ) {
93  LAPACK_cggevx( &balanc, &jobvl, &jobvr, &sense, &n, a, &lda_t, b,
94  &ldb_t, alpha, beta, vl, &ldvl_t, vr, &ldvr_t, ilo,
95  ihi, lscale, rscale, abnrm, bbnrm, rconde, rcondv,
96  work, &lwork, rwork, iwork, bwork, &info );
97  return (info < 0) ? (info - 1) : info;
98  }
99  /* Allocate memory for temporary array(s) */
100  a_t = (lapack_complex_float*)
101  LAPACKE_malloc( sizeof(lapack_complex_float) * lda_t * MAX(1,n) );
102  if( a_t == NULL ) {
103  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
104  goto exit_level_0;
105  }
106  b_t = (lapack_complex_float*)
107  LAPACKE_malloc( sizeof(lapack_complex_float) * ldb_t * MAX(1,n) );
108  if( b_t == NULL ) {
109  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
110  goto exit_level_1;
111  }
112  if( LAPACKE_lsame( jobvl, 'v' ) ) {
113  vl_t = (lapack_complex_float*)
114  LAPACKE_malloc( sizeof(lapack_complex_float) *
115  ldvl_t * MAX(1,n) );
116  if( vl_t == NULL ) {
117  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
118  goto exit_level_2;
119  }
120  }
121  if( LAPACKE_lsame( jobvr, 'v' ) ) {
122  vr_t = (lapack_complex_float*)
123  LAPACKE_malloc( sizeof(lapack_complex_float) *
124  ldvr_t * MAX(1,n) );
125  if( vr_t == NULL ) {
126  info = LAPACK_TRANSPOSE_MEMORY_ERROR;
127  goto exit_level_3;
128  }
129  }
130  /* Transpose input matrices */
131  LAPACKE_cge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
132  LAPACKE_cge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
133  /* Call LAPACK function and adjust info */
134  LAPACK_cggevx( &balanc, &jobvl, &jobvr, &sense, &n, a_t, &lda_t, b_t,
135  &ldb_t, alpha, beta, vl_t, &ldvl_t, vr_t, &ldvr_t, ilo,
136  ihi, lscale, rscale, abnrm, bbnrm, rconde, rcondv, work,
137  &lwork, rwork, iwork, bwork, &info );
138  if( info < 0 ) {
139  info = info - 1;
140  }
141  /* Transpose output matrices */
142  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
143  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, b_t, ldb_t, b, ldb );
144  if( LAPACKE_lsame( jobvl, 'v' ) ) {
145  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, vl_t, ldvl_t, vl, ldvl );
146  }
147  if( LAPACKE_lsame( jobvr, 'v' ) ) {
148  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, vr_t, ldvr_t, vr, ldvr );
149  }
150  /* Release memory and exit */
151  if( LAPACKE_lsame( jobvr, 'v' ) ) {
152  LAPACKE_free( vr_t );
153  }
154 exit_level_3:
155  if( LAPACKE_lsame( jobvl, 'v' ) ) {
156  LAPACKE_free( vl_t );
157  }
158 exit_level_2:
159  LAPACKE_free( b_t );
160 exit_level_1:
161  LAPACKE_free( a_t );
162 exit_level_0:
163  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
164  LAPACKE_xerbla( "LAPACKE_cggevx_work", info );
165  }
166  } else {
167  info = -1;
168  LAPACKE_xerbla( "LAPACKE_cggevx_work", info );
169  }
170  return info;
171 }
LAPACKE_free
#define LAPACKE_free(p)
Definition: lapacke.h:47
lapack_int
#define lapack_int
Definition: lapack.h:21
LAPACKE_cge_trans
void LAPACKE_cge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_float *in, lapack_int ldin, lapack_complex_float *out, lapack_int ldout)
Definition: lapacke_cge_trans.c:39
lapacke_utils.h
LAPACKE_xerbla
void LAPACKE_xerbla(const char *name, lapack_int info)
Definition: lapacke_xerbla.c:36
MAX
#define MAX(x, y)
Definition: lapacke_utils.h:47
lapack_complex_float
#define lapack_complex_float
Definition: lapack.h:56
LAPACK_TRANSPOSE_MEMORY_ERROR
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:57
LAPACK_cggevx
void LAPACK_cggevx(char const *balanc, char const *jobvl, char const *jobvr, char const *sense, lapack_int const *n, lapack_complex_float *A, lapack_int const *lda, lapack_complex_float *B, lapack_int const *ldb, lapack_complex_float *alpha, lapack_complex_float *beta, lapack_complex_float *VL, lapack_int const *ldvl, lapack_complex_float *VR, lapack_int const *ldvr, lapack_int *ilo, lapack_int *ihi, float *lscale, float *rscale, float *abnrm, float *bbnrm, float *rconde, float *rcondv, lapack_complex_float *work, lapack_int const *lwork, float *rwork, lapack_int *iwork, lapack_logical *BWORK, lapack_int *info)
lapack_logical
#define lapack_logical
Definition: lapack.h:25
LAPACKE_malloc
#define LAPACKE_malloc(size)
Definition: lapacke.h:44
LAPACKE_lsame
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
LAPACK_ROW_MAJOR
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:53
LAPACK_COL_MAJOR
#define LAPACK_COL_MAJOR
Definition: lapacke.h:54
LAPACKE_cggevx_work
lapack_int LAPACKE_cggevx_work(int matrix_layout, char balanc, char jobvl, char jobvr, char sense, lapack_int n, lapack_complex_float *a, lapack_int lda, lapack_complex_float *b, lapack_int ldb, lapack_complex_float *alpha, lapack_complex_float *beta, lapack_complex_float *vl, lapack_int ldvl, lapack_complex_float *vr, lapack_int ldvr, lapack_int *ilo, lapack_int *ihi, float *lscale, float *rscale, float *abnrm, float *bbnrm, float *rconde, float *rcondv, lapack_complex_float *work, lapack_int lwork, float *rwork, lapack_int *iwork, lapack_logical *bwork)
Definition: lapacke_cggevx_work.c:35