LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_zhsein_work()

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

Definition at line 35 of file lapacke_zhsein_work.c.

44{
45 lapack_int info = 0;
46 if( matrix_layout == LAPACK_COL_MAJOR ) {
47 /* Call LAPACK function and adjust info */
48 LAPACK_zhsein( &job, &eigsrc, &initv, select, &n, h, &ldh, w, vl, &ldvl,
49 vr, &ldvr, &mm, m, work, rwork, ifaill, ifailr, &info );
50 if( info < 0 ) {
51 info = info - 1;
52 }
53 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
54 lapack_int ldh_t = MAX(1,n);
55 lapack_int ldvl_t = MAX(1,n);
56 lapack_int ldvr_t = MAX(1,n);
57 lapack_complex_double* h_t = NULL;
58 lapack_complex_double* vl_t = NULL;
59 lapack_complex_double* vr_t = NULL;
60 /* Check leading dimension(s) */
61 if( ldh < n ) {
62 info = -8;
63 LAPACKE_xerbla( "LAPACKE_zhsein_work", info );
64 return info;
65 }
66 if( ldvl < mm ) {
67 info = -11;
68 LAPACKE_xerbla( "LAPACKE_zhsein_work", info );
69 return info;
70 }
71 if( ldvr < mm ) {
72 info = -13;
73 LAPACKE_xerbla( "LAPACKE_zhsein_work", info );
74 return info;
75 }
76 /* Allocate memory for temporary array(s) */
78 LAPACKE_malloc( sizeof(lapack_complex_double) * ldh_t * MAX(1,n) );
79 if( h_t == NULL ) {
81 goto exit_level_0;
82 }
83 if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
84 vl_t = (lapack_complex_double*)
86 ldvl_t * MAX(1,mm) );
87 if( vl_t == NULL ) {
89 goto exit_level_1;
90 }
91 }
92 if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
93 vr_t = (lapack_complex_double*)
95 ldvr_t * MAX(1,mm) );
96 if( vr_t == NULL ) {
98 goto exit_level_2;
99 }
100 }
101 /* Transpose input matrices */
102 LAPACKE_zge_trans( matrix_layout, n, n, h, ldh, h_t, ldh_t );
103 if( ( LAPACKE_lsame( job, 'l' ) || LAPACKE_lsame( job, 'b' ) ) &&
104 LAPACKE_lsame( initv, 'v' ) ) {
105 LAPACKE_zge_trans( matrix_layout, n, mm, vl, ldvl, vl_t, ldvl_t );
106 }
107 if( ( LAPACKE_lsame( job, 'r' ) || LAPACKE_lsame( job, 'b' ) ) &&
108 LAPACKE_lsame( initv, 'v' ) ) {
109 LAPACKE_zge_trans( matrix_layout, n, mm, vr, ldvr, vr_t, ldvr_t );
110 }
111 /* Call LAPACK function and adjust info */
112 LAPACK_zhsein( &job, &eigsrc, &initv, select, &n, h_t, &ldh_t, w, vl_t,
113 &ldvl_t, vr_t, &ldvr_t, &mm, m, work, rwork, ifaill,
114 ifailr, &info );
115 if( info < 0 ) {
116 info = info - 1;
117 }
118 /* Transpose output matrices */
119 if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
120 LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, mm, vl_t, ldvl_t, vl,
121 ldvl );
122 }
123 if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
124 LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, mm, vr_t, ldvr_t, vr,
125 ldvr );
126 }
127 /* Release memory and exit */
128 if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
129 LAPACKE_free( vr_t );
130 }
131exit_level_2:
132 if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
133 LAPACKE_free( vl_t );
134 }
135exit_level_1:
136 LAPACKE_free( h_t );
137exit_level_0:
138 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
139 LAPACKE_xerbla( "LAPACKE_zhsein_work", info );
140 }
141 } else {
142 info = -1;
143 LAPACKE_xerbla( "LAPACKE_zhsein_work", info );
144 }
145 return info;
146}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_zhsein(...)
Definition: lapack.h:9131
#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)
#define MAX(x, y)
Definition: lapacke_utils.h:46
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