LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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lapacke_zggev3_work.c
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1/*****************************************************************************
2 Copyright (c) 2015, 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:
7
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
12 documentation and/or other materials provided with the distribution.
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
20 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
21 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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25 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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27 THE POSSIBILITY OF SUCH DAMAGE.
28*****************************************************************************
29* Contents: Native middle-level C interface to LAPACK function zggev3
30* Author: Intel Corporation
31*****************************************************************************/
32
33#include "lapacke_utils.h"
34
36 char jobvl, char jobvr, lapack_int n,
44 double* rwork )
45{
46 lapack_int info = 0;
47 if( matrix_layout == LAPACK_COL_MAJOR ) {
48 /* Call LAPACK function and adjust info */
49 LAPACK_zggev3( &jobvl, &jobvr, &n, a, &lda, b, &ldb, alpha, beta, vl,
50 &ldvl, vr, &ldvr, work, &lwork, rwork, &info );
51 if( info < 0 ) {
52 info = info - 1;
53 }
54 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
55 lapack_int nrows_vl = LAPACKE_lsame( jobvl, 'v' ) ? n : 1;
56 lapack_int ncols_vl = LAPACKE_lsame( jobvl, 'v' ) ? n : 1;
57 lapack_int nrows_vr = LAPACKE_lsame( jobvr, 'v' ) ? n : 1;
58 lapack_int ncols_vr = LAPACKE_lsame( jobvr, 'v' ) ? n : 1;
59 lapack_int lda_t = MAX(1,n);
60 lapack_int ldb_t = MAX(1,n);
61 lapack_int ldvl_t = MAX(1,nrows_vl);
62 lapack_int ldvr_t = MAX(1,nrows_vr);
63 lapack_complex_double* a_t = NULL;
64 lapack_complex_double* b_t = NULL;
65 lapack_complex_double* vl_t = NULL;
66 lapack_complex_double* vr_t = NULL;
67 /* Check leading dimension(s) */
68 if( lda < n ) {
69 info = -6;
70 LAPACKE_xerbla( "LAPACKE_zggev3_work", info );
71 return info;
72 }
73 if( ldb < n ) {
74 info = -8;
75 LAPACKE_xerbla( "LAPACKE_zggev3_work", info );
76 return info;
77 }
78 if( ldvl < ncols_vl ) {
79 info = -12;
80 LAPACKE_xerbla( "LAPACKE_zggev3_work", info );
81 return info;
82 }
83 if( ldvr < ncols_vr ) {
84 info = -14;
85 LAPACKE_xerbla( "LAPACKE_zggev3_work", info );
86 return info;
87 }
88 /* Query optimal working array(s) size if requested */
89 if( lwork == -1 ) {
90 LAPACK_zggev3( &jobvl, &jobvr, &n, a, &lda_t, b, &ldb_t,
91 alpha, beta, vl, &ldvl_t, vr, &ldvr_t,
92 work, &lwork, rwork, &info );
93 return (info < 0) ? (info - 1) : info;
94 }
95 /* Allocate memory for temporary array(s) */
97 LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
98 if( a_t == NULL ) {
100 goto exit_level_0;
101 }
102 b_t = (lapack_complex_double*)
103 LAPACKE_malloc( sizeof(lapack_complex_double) * ldb_t * MAX(1,n) );
104 if( b_t == NULL ) {
106 goto exit_level_1;
107 }
108 if( LAPACKE_lsame( jobvl, 'v' ) ) {
109 vl_t = (lapack_complex_double*)
111 ldvl_t * MAX(1,ncols_vl) );
112 if( vl_t == NULL ) {
114 goto exit_level_2;
115 }
116 }
117 if( LAPACKE_lsame( jobvr, 'v' ) ) {
118 vr_t = (lapack_complex_double*)
120 ldvr_t * MAX(1,ncols_vr) );
121 if( vr_t == NULL ) {
123 goto exit_level_3;
124 }
125 }
126 /* Transpose input matrices */
127 LAPACKE_zge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
128 LAPACKE_zge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
129 /* Call LAPACK function and adjust info */
130 LAPACK_zggev3( &jobvl, &jobvr, &n, a_t, &lda_t, b_t, &ldb_t,
131 alpha, beta, vl_t, &ldvl_t, vr_t, &ldvr_t,
132 work, &lwork, rwork, &info );
133 if( info < 0 ) {
134 info = info - 1;
135 }
136 /* Transpose output matrices */
137 LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
138 LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, b_t, ldb_t, b, ldb );
139 if( LAPACKE_lsame( jobvl, 'v' ) ) {
140 LAPACKE_zge_trans( LAPACK_COL_MAJOR, nrows_vl, ncols_vl, vl_t,
141 ldvl_t, vl, ldvl );
142 }
143 if( LAPACKE_lsame( jobvr, 'v' ) ) {
144 LAPACKE_zge_trans( LAPACK_COL_MAJOR, nrows_vr, ncols_vr, vr_t,
145 ldvr_t, vr, ldvr );
146 }
147 /* Release memory and exit */
148 if( LAPACKE_lsame( jobvr, 'v' ) ) {
149 LAPACKE_free( vr_t );
150 }
151exit_level_3:
152 if( LAPACKE_lsame( jobvl, 'v' ) ) {
153 LAPACKE_free( vl_t );
154 }
155exit_level_2:
156 LAPACKE_free( b_t );
157exit_level_1:
158 LAPACKE_free( a_t );
159exit_level_0:
160 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
161 LAPACKE_xerbla( "LAPACKE_zggev3_work", info );
162 }
163 } else {
164 info = -1;
165 LAPACKE_xerbla( "LAPACKE_zggev3_work", info );
166 }
167 return info;
168}
#define lapack_int
Definition: lapack.h:87
#define lapack_complex_double
Definition: lapack.h:64
#define LAPACK_zggev3(...)
Definition: lapack.h:4837
#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_zggev3_work(int matrix_layout, char jobvl, char jobvr, lapack_int n, lapack_complex_double *a, lapack_int lda, lapack_complex_double *b, lapack_int ldb, lapack_complex_double *alpha, lapack_complex_double *beta, lapack_complex_double *vl, lapack_int ldvl, lapack_complex_double *vr, lapack_int ldvr, lapack_complex_double *work, lapack_int lwork, double *rwork)