LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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lapacke_zhsein_work.c
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1/*****************************************************************************
2 Copyright (c) 2014, Intel Corp.
3 All rights reserved.
4
5 Redistribution and use in source and binary forms, with or without
6 modification, are permitted provided that the following conditions are met:
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8 * Redistributions of source code must retain the above copyright notice,
9 this list of conditions and the following disclaimer.
10 * Redistributions in binary form must reproduce the above copyright
11 notice, this list of conditions and the following disclaimer in the
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13 * Neither the name of Intel Corporation nor the names of its contributors
14 may be used to endorse or promote products derived from this software
15 without specific prior written permission.
16
17 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
18 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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28*****************************************************************************
29* Contents: Native middle-level C interface to LAPACK function zhsein
30* Author: Intel Corporation
31*****************************************************************************/
32
33#include "lapacke_utils.h"
34
35lapack_int LAPACKE_zhsein_work( int matrix_layout, char job, char eigsrc,
36 char initv, const lapack_logical* select,
42 lapack_complex_double* work, double* rwork,
43 lapack_int* ifaill, lapack_int* ifailr )
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_logical
Definition: lapack.h:103
#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
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)