LAPACK  3.10.1
LAPACK: Linear Algebra PACKage

◆ LAPACKE_chpgvx_work()

lapack_int LAPACKE_chpgvx_work ( int  matrix_layout,
lapack_int  itype,
char  jobz,
char  range,
char  uplo,
lapack_int  n,
lapack_complex_float ap,
lapack_complex_float bp,
float  vl,
float  vu,
lapack_int  il,
lapack_int  iu,
float  abstol,
lapack_int m,
float *  w,
lapack_complex_float z,
lapack_int  ldz,
lapack_complex_float work,
float *  rwork,
lapack_int iwork,
lapack_int ifail 
)

Definition at line 35 of file lapacke_chpgvx_work.c.

44 {
45  lapack_int info = 0;
46  if( matrix_layout == LAPACK_COL_MAJOR ) {
47  /* Call LAPACK function and adjust info */
48  LAPACK_chpgvx( &itype, &jobz, &range, &uplo, &n, ap, bp, &vl, &vu, &il,
49  &iu, &abstol, m, w, z, &ldz, work, rwork, iwork, ifail,
50  &info );
51  if( info < 0 ) {
52  info = info - 1;
53  }
54  } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
55  lapack_int ncols_z = ( LAPACKE_lsame( range, 'a' ) ||
56  LAPACKE_lsame( range, 'v' ) ) ? n :
57  ( LAPACKE_lsame( range, 'i' ) ? (iu-il+1) : 1);
58  lapack_int ldz_t = MAX(1,n);
59  lapack_complex_float* z_t = NULL;
60  lapack_complex_float* ap_t = NULL;
61  lapack_complex_float* bp_t = NULL;
62  /* Check leading dimension(s) */
63  if( ldz < ncols_z ) {
64  info = -17;
65  LAPACKE_xerbla( "LAPACKE_chpgvx_work", info );
66  return info;
67  }
68  /* Allocate memory for temporary array(s) */
69  if( LAPACKE_lsame( jobz, 'v' ) ) {
70  z_t = (lapack_complex_float*)
72  ldz_t * MAX(1,ncols_z) );
73  if( z_t == NULL ) {
75  goto exit_level_0;
76  }
77  }
78  ap_t = (lapack_complex_float*)
80  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
81  if( ap_t == NULL ) {
83  goto exit_level_1;
84  }
85  bp_t = (lapack_complex_float*)
87  ( MAX(1,n) * MAX(2,n+1) ) / 2 );
88  if( bp_t == NULL ) {
90  goto exit_level_2;
91  }
92  /* Transpose input matrices */
93  LAPACKE_chp_trans( matrix_layout, uplo, n, ap, ap_t );
94  LAPACKE_chp_trans( matrix_layout, uplo, n, bp, bp_t );
95  /* Call LAPACK function and adjust info */
96  LAPACK_chpgvx( &itype, &jobz, &range, &uplo, &n, ap_t, bp_t, &vl, &vu,
97  &il, &iu, &abstol, m, w, z_t, &ldz_t, work, rwork, iwork,
98  ifail, &info );
99  if( info < 0 ) {
100  info = info - 1;
101  }
102  /* Transpose output matrices */
103  if( LAPACKE_lsame( jobz, 'v' ) ) {
104  LAPACKE_cge_trans( LAPACK_COL_MAJOR, n, ncols_z, z_t, ldz_t, z,
105  ldz );
106  }
107  LAPACKE_chp_trans( LAPACK_COL_MAJOR, uplo, n, ap_t, ap );
108  LAPACKE_chp_trans( LAPACK_COL_MAJOR, uplo, n, bp_t, bp );
109  /* Release memory and exit */
110  LAPACKE_free( bp_t );
111 exit_level_2:
112  LAPACKE_free( ap_t );
113 exit_level_1:
114  if( LAPACKE_lsame( jobz, 'v' ) ) {
115  LAPACKE_free( z_t );
116  }
117 exit_level_0:
118  if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
119  LAPACKE_xerbla( "LAPACKE_chpgvx_work", info );
120  }
121  } else {
122  info = -1;
123  LAPACKE_xerbla( "LAPACKE_chpgvx_work", info );
124  }
125  return info;
126 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_chpgvx(...)
Definition: lapack.h:8736
#define lapack_complex_float
Definition: lapack.h:45
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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 LAPACKE_chp_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_float *in, lapack_complex_float *out)
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