LAPACK  3.6.1
LAPACK: Linear Algebra PACKage
lapacke_chpgv_work.c
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28 *****************************************************************************
29 * Contents: Native middle-level C interface to LAPACK function chpgv
30 * Author: Intel Corporation
31 * Generated November 2015
32 *****************************************************************************/
33 
34 #include "lapacke_utils.h"
35 
36 lapack_int LAPACKE_chpgv_work( int matrix_layout, lapack_int itype, char jobz,
37  char uplo, lapack_int n,
39  lapack_complex_float* bp, float* w,
41  lapack_complex_float* work, float* rwork )
42 {
43  lapack_int info = 0;
44  if( matrix_layout == LAPACK_COL_MAJOR ) {
45  /* Call LAPACK function and adjust info */
46  LAPACK_chpgv( &itype, &jobz, &uplo, &n, ap, bp, w, z, &ldz, work, rwork,
47  &info );
48  if( info < 0 ) {
49  info = info - 1;
50  }
51  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
52  lapack_int ldz_t = MAX(1,n);
53  lapack_complex_float* z_t = NULL;
54  lapack_complex_float* ap_t = NULL;
55  lapack_complex_float* bp_t = NULL;
56  /* Check leading dimension(s) */
57  if( ldz < n ) {
58  info = -10;
59  LAPACKE_xerbla( "LAPACKE_chpgv_work", info );
60  return info;
61  }
62  /* Allocate memory for temporary array(s) */
63  if( LAPACKE_lsame( jobz, 'v' ) ) {
64  z_t = (lapack_complex_float*)
66  ldz_t * MAX(1,n) );
67  if( z_t == NULL ) {
69  goto exit_level_0;
70  }
71  }
72  ap_t = (lapack_complex_float*)
74  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
75  if( ap_t == NULL ) {
77  goto exit_level_1;
78  }
79  bp_t = (lapack_complex_float*)
81  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
82  if( bp_t == NULL ) {
84  goto exit_level_2;
85  }
86  /* Transpose input matrices */
87  LAPACKE_chp_trans( matrix_layout, uplo, n, ap, ap_t );
88  LAPACKE_chp_trans( matrix_layout, uplo, n, bp, bp_t );
89  /* Call LAPACK function and adjust info */
90  LAPACK_chpgv( &itype, &jobz, &uplo, &n, ap_t, bp_t, w, z_t, &ldz_t,
91  work, rwork, &info );
92  if( info < 0 ) {
93  info = info - 1;
94  }
95  /* Transpose output matrices */
96  if( LAPACKE_lsame( jobz, 'v' ) ) {
97  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
98  }
99  LAPACKE_chp_trans( LAPACK_COL_MAJOR, uplo, n, ap_t, ap );
100  LAPACKE_chp_trans( LAPACK_COL_MAJOR, uplo, n, bp_t, bp );
101  /* Release memory and exit */
102  LAPACKE_free( bp_t );
103 exit_level_2:
104  LAPACKE_free( ap_t );
105 exit_level_1:
106  if( LAPACKE_lsame( jobz, 'v' ) ) {
107  LAPACKE_free( z_t );
108  }
109 exit_level_0:
110  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
111  LAPACKE_xerbla( "LAPACKE_chpgv_work", info );
112  }
113  } else {
114  info = -1;
115  LAPACKE_xerbla( "LAPACKE_chpgv_work", info );
116  }
117  return info;
118 }
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)
void LAPACK_chpgv(lapack_int *itype, char *jobz, char *uplo, lapack_int *n, lapack_complex_float *ap, lapack_complex_float *bp, float *w, lapack_complex_float *z, lapack_int *ldz, lapack_complex_float *work, float *rwork, lapack_int *info)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define lapack_complex_float
Definition: lapacke.h:74
void LAPACKE_chp_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *in, lapack_complex_float *out)
lapack_int LAPACKE_chpgv_work(int matrix_layout, lapack_int itype, char jobz, char uplo, lapack_int n, lapack_complex_float *ap, lapack_complex_float *bp, float *w, lapack_complex_float *z, lapack_int ldz, lapack_complex_float *work, float *rwork)
#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