LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
Loading...
Searching...
No Matches

◆ LAPACKE_zhpgv_work()

lapack_int LAPACKE_zhpgv_work ( int  matrix_layout,
lapack_int  itype,
char  jobz,
char  uplo,
lapack_int  n,
lapack_complex_double ap,
lapack_complex_double bp,
double *  w,
lapack_complex_double z,
lapack_int  ldz,
lapack_complex_double work,
double *  rwork 
)

Definition at line 35 of file lapacke_zhpgv_work.c.

41{
42 lapack_int info = 0;
43 if( matrix_layout == LAPACK_COL_MAJOR ) {
44 /* Call LAPACK function and adjust info */
45 LAPACK_zhpgv( &itype, &jobz, &uplo, &n, ap, bp, w, z, &ldz, work, rwork,
46 &info );
47 if( info < 0 ) {
48 info = info - 1;
49 }
50 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
51 lapack_int ldz_t = MAX(1,n);
52 lapack_complex_double* z_t = NULL;
53 lapack_complex_double* ap_t = NULL;
54 lapack_complex_double* bp_t = NULL;
55 /* Check leading dimension(s) */
56 if( ldz < n ) {
57 info = -10;
58 LAPACKE_xerbla( "LAPACKE_zhpgv_work", info );
59 return info;
60 }
61 /* Allocate memory for temporary array(s) */
62 if( LAPACKE_lsame( jobz, 'v' ) ) {
65 ldz_t * MAX(1,n) );
66 if( z_t == NULL ) {
68 goto exit_level_0;
69 }
70 }
71 ap_t = (lapack_complex_double*)
73 ( MAX(1,n) * MAX(2,n+1) ) / 2 );
74 if( ap_t == NULL ) {
76 goto exit_level_1;
77 }
78 bp_t = (lapack_complex_double*)
80 ( MAX(1,n) * MAX(2,n+1) ) / 2 );
81 if( bp_t == NULL ) {
83 goto exit_level_2;
84 }
85 /* Transpose input matrices */
86 LAPACKE_zhp_trans( matrix_layout, uplo, n, ap, ap_t );
87 LAPACKE_zhp_trans( matrix_layout, uplo, n, bp, bp_t );
88 /* Call LAPACK function and adjust info */
89 LAPACK_zhpgv( &itype, &jobz, &uplo, &n, ap_t, bp_t, w, z_t, &ldz_t,
90 work, rwork, &info );
91 if( info < 0 ) {
92 info = info - 1;
93 }
94 /* Transpose output matrices */
95 if( LAPACKE_lsame( jobz, 'v' ) ) {
96 LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, z_t, ldz_t, z, ldz );
97 }
98 LAPACKE_zhp_trans( LAPACK_COL_MAJOR, uplo, n, ap_t, ap );
99 LAPACKE_zhp_trans( LAPACK_COL_MAJOR, uplo, n, bp_t, bp );
100 /* Release memory and exit */
101 LAPACKE_free( bp_t );
102exit_level_2:
103 LAPACKE_free( ap_t );
104exit_level_1:
105 if( LAPACKE_lsame( jobz, 'v' ) ) {
106 LAPACKE_free( z_t );
107 }
108exit_level_0:
109 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
110 LAPACKE_xerbla( "LAPACKE_zhpgv_work", info );
111 }
112 } else {
113 info = -1;
114 LAPACKE_xerbla( "LAPACKE_zhpgv_work", info );
115 }
116 return info;
117}
#define LAPACK_zhpgv(...)
Definition: lapack.h:8683
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_double
Definition: lapack.h:64
#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)
void LAPACKE_zge_trans(int matrix_layout, lapack_int m, lapack_int n, const lapack_complex_double *in, lapack_int ldin, lapack_complex_double *out, lapack_int ldout)
void LAPACKE_zhp_trans(int matrix_layout, char uplo, lapack_int n, const lapack_complex_double *in, lapack_complex_double *out)
#define MAX(x, y)
Definition: lapacke_utils.h:46
Here is the call graph for this function:
Here is the caller graph for this function: