LAPACK  3.8.0
LAPACK: Linear Algebra PACKage

◆ LAPACKE_chsein_work()

lapack_int LAPACKE_chsein_work ( int  matrix_layout,
char  job,
char  eigsrc,
char  initv,
const lapack_logical select,
lapack_int  n,
const lapack_complex_float h,
lapack_int  ldh,
lapack_complex_float w,
lapack_complex_float vl,
lapack_int  ldvl,
lapack_complex_float vr,
lapack_int  ldvr,
lapack_int  mm,
lapack_int m,
lapack_complex_float work,
float *  rwork,
lapack_int ifaill,
lapack_int ifailr 
)

Definition at line 36 of file lapacke_chsein_work.c.

45 {
46  lapack_int info = 0;
47  if( matrix_layout == LAPACK_COL_MAJOR ) {
48  /* Call LAPACK function and adjust info */
49  LAPACK_chsein( &job, &eigsrc, &initv, select, &n, h, &ldh, w, vl, &ldvl,
50  vr, &ldvr, &mm, m, work, rwork, ifaill, ifailr, &info );
51  if( info < 0 ) {
52  info = info - 1;
53  }
54  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
55  lapack_int ldh_t = MAX(1,n);
56  lapack_int ldvl_t = MAX(1,n);
57  lapack_int ldvr_t = MAX(1,n);
58  lapack_complex_float* h_t = NULL;
59  lapack_complex_float* vl_t = NULL;
60  lapack_complex_float* vr_t = NULL;
61  /* Check leading dimension(s) */
62  if( ldh < n ) {
63  info = -8;
64  LAPACKE_xerbla( "LAPACKE_chsein_work", info );
65  return info;
66  }
67  if( ldvl < mm ) {
68  info = -11;
69  LAPACKE_xerbla( "LAPACKE_chsein_work", info );
70  return info;
71  }
72  if( ldvr < mm ) {
73  info = -13;
74  LAPACKE_xerbla( "LAPACKE_chsein_work", info );
75  return info;
76  }
77  /* Allocate memory for temporary array(s) */
78  h_t = (lapack_complex_float*)
79  LAPACKE_malloc( sizeof(lapack_complex_float) * ldh_t * MAX(1,n) );
80  if( h_t == NULL ) {
82  goto exit_level_0;
83  }
84  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
85  vl_t = (lapack_complex_float*)
87  ldvl_t * MAX(1,mm) );
88  if( vl_t == NULL ) {
90  goto exit_level_1;
91  }
92  }
93  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
94  vr_t = (lapack_complex_float*)
96  ldvr_t * MAX(1,mm) );
97  if( vr_t == NULL ) {
99  goto exit_level_2;
100  }
101  }
102  /* Transpose input matrices */
103  LAPACKE_cge_trans( matrix_layout, n, n, h, ldh, h_t, ldh_t );
104  if( ( LAPACKE_lsame( job, 'l' ) || LAPACKE_lsame( job, 'b' ) ) &&
105  LAPACKE_lsame( initv, 'v' ) ) {
106  LAPACKE_cge_trans( matrix_layout, n, mm, vl, ldvl, vl_t, ldvl_t );
107  }
108  if( ( LAPACKE_lsame( job, 'r' ) || LAPACKE_lsame( job, 'b' ) ) &&
109  LAPACKE_lsame( initv, 'v' ) ) {
110  LAPACKE_cge_trans( matrix_layout, n, mm, vr, ldvr, vr_t, ldvr_t );
111  }
112  /* Call LAPACK function and adjust info */
113  LAPACK_chsein( &job, &eigsrc, &initv, select, &n, h_t, &ldh_t, w, vl_t,
114  &ldvl_t, vr_t, &ldvr_t, &mm, m, work, rwork, ifaill,
115  ifailr, &info );
116  if( info < 0 ) {
117  info = info - 1;
118  }
119  /* Transpose output matrices */
120  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
121  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, mm, vl_t, ldvl_t, vl,
122  ldvl );
123  }
124  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
125  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, mm, vr_t, ldvr_t, vr,
126  ldvr );
127  }
128  /* Release memory and exit */
129  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
130  LAPACKE_free( vr_t );
131  }
132 exit_level_2:
133  if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
134  LAPACKE_free( vl_t );
135  }
136 exit_level_1:
137  LAPACKE_free( h_t );
138 exit_level_0:
139  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
140  LAPACKE_xerbla( "LAPACKE_chsein_work", info );
141  }
142  } else {
143  info = -1;
144  LAPACKE_xerbla( "LAPACKE_chsein_work", info );
145  }
146  return info;
147 }
void LAPACK_chsein(char *job, char *eigsrc, char *initv, const lapack_logical *select, lapack_int *n, const lapack_complex_float *h, lapack_int *ldh, lapack_complex_float *w, lapack_complex_float *vl, lapack_int *ldvl, lapack_complex_float *vr, lapack_int *ldvr, lapack_int *mm, lapack_int *m, lapack_complex_float *work, float *rwork, lapack_int *ifaill, lapack_int *ifailr, lapack_int *info)
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)
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:119
#define LAPACKE_free(p)
Definition: lapacke.h:113
#define lapack_complex_float
Definition: lapacke.h:74
#define MAX(x, y)
Definition: lapacke_utils.h:47
#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
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