LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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◆ LAPACKE_dhsein_work()

lapack_int LAPACKE_dhsein_work ( int  matrix_layout,
char  job,
char  eigsrc,
char  initv,
lapack_logical *  select,
lapack_int  n,
const double *  h,
lapack_int  ldh,
double *  wr,
const double *  wi,
double *  vl,
lapack_int  ldvl,
double *  vr,
lapack_int  ldvr,
lapack_int  mm,
lapack_int *  m,
double *  work,
lapack_int *  ifaill,
lapack_int *  ifailr 
)

Definition at line 35 of file lapacke_dhsein_work.c.

42{
43 lapack_int info = 0;
44 if( matrix_layout == LAPACK_COL_MAJOR ) {
45 /* Call LAPACK function and adjust info */
46 LAPACK_dhsein( &job, &eigsrc, &initv, select, &n, h, &ldh, wr, wi, vl,
47 &ldvl, vr, &ldvr, &mm, m, work, ifaill, ifailr, &info );
48 if( info < 0 ) {
49 info = info - 1;
50 }
51 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
52 lapack_int ldh_t = MAX(1,n);
53 lapack_int ldvl_t = MAX(1,n);
54 lapack_int ldvr_t = MAX(1,n);
55 double* h_t = NULL;
56 double* vl_t = NULL;
57 double* vr_t = NULL;
58 /* Check leading dimension(s) */
59 if( ldh < n ) {
60 info = -8;
61 LAPACKE_xerbla( "LAPACKE_dhsein_work", info );
62 return info;
63 }
64 if( ldvl < mm ) {
65 info = -12;
66 LAPACKE_xerbla( "LAPACKE_dhsein_work", info );
67 return info;
68 }
69 if( ldvr < mm ) {
70 info = -14;
71 LAPACKE_xerbla( "LAPACKE_dhsein_work", info );
72 return info;
73 }
74 /* Allocate memory for temporary array(s) */
75 h_t = (double*)LAPACKE_malloc( sizeof(double) * ldh_t * MAX(1,n) );
76 if( h_t == NULL ) {
77 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
78 goto exit_level_0;
79 }
80 if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
81 vl_t = (double*)
82 LAPACKE_malloc( sizeof(double) * ldvl_t * MAX(1,mm) );
83 if( vl_t == NULL ) {
84 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
85 goto exit_level_1;
86 }
87 }
88 if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
89 vr_t = (double*)
90 LAPACKE_malloc( sizeof(double) * ldvr_t * MAX(1,mm) );
91 if( vr_t == NULL ) {
92 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
93 goto exit_level_2;
94 }
95 }
96 /* Transpose input matrices */
97 LAPACKE_dge_trans( matrix_layout, n, n, h, ldh, h_t, ldh_t );
98 if( ( LAPACKE_lsame( job, 'l' ) || LAPACKE_lsame( job, 'b' ) ) &&
99 LAPACKE_lsame( initv, 'v' ) ) {
100 LAPACKE_dge_trans( matrix_layout, n, mm, vl, ldvl, vl_t, ldvl_t );
101 }
102 if( ( LAPACKE_lsame( job, 'r' ) || LAPACKE_lsame( job, 'b' ) ) &&
103 LAPACKE_lsame( initv, 'v' ) ) {
104 LAPACKE_dge_trans( matrix_layout, n, mm, vr, ldvr, vr_t, ldvr_t );
105 }
106 /* Call LAPACK function and adjust info */
107 LAPACK_dhsein( &job, &eigsrc, &initv, select, &n, h_t, &ldh_t, wr, wi,
108 vl_t, &ldvl_t, vr_t, &ldvr_t, &mm, m, work, ifaill,
109 ifailr, &info );
110 if( info < 0 ) {
111 info = info - 1;
112 }
113 /* Transpose output matrices */
114 if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
115 LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, mm, vl_t, ldvl_t, vl,
116 ldvl );
117 }
118 if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
119 LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, mm, vr_t, ldvr_t, vr,
120 ldvr );
121 }
122 /* Release memory and exit */
123 if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'r' ) ) {
124 LAPACKE_free( vr_t );
125 }
126exit_level_2:
127 if( LAPACKE_lsame( job, 'b' ) || LAPACKE_lsame( job, 'l' ) ) {
128 LAPACKE_free( vl_t );
129 }
130exit_level_1:
131 LAPACKE_free( h_t );
132exit_level_0:
133 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
134 LAPACKE_xerbla( "LAPACKE_dhsein_work", info );
135 }
136 } else {
137 info = -1;
138 LAPACKE_xerbla( "LAPACKE_dhsein_work", info );
139 }
140 return info;
141}
lapack_int
#define lapack_int
Definition: lapack.h:87
LAPACK_dhsein
#define LAPACK_dhsein(...)
Definition: lapack.h:9087
LAPACK_COL_MAJOR
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
LAPACKE_free
#define LAPACKE_free(p)
Definition: lapacke.h:46
LAPACK_ROW_MAJOR
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
LAPACKE_malloc
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
LAPACK_TRANSPOSE_MEMORY_ERROR
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition: lapacke.h:56
LAPACKE_lsame
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
LAPACKE_xerbla
void LAPACKE_xerbla(const char *name, lapack_int info)
Definition: lapacke_xerbla.c:36
MAX
#define MAX(x, y)
Definition: lapacke_utils.h:46
LAPACKE_dge_trans
void LAPACKE_dge_trans(int matrix_layout, lapack_int m, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
Definition: lapacke_dge_trans.c:39
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