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2 Copyright (c) 2014, Intel Corp.
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28 *****************************************************************************
29 * Contents: Native middle-level C interface to LAPACK function zggsvp3
30 * Author: Intel Corporation
31 * Generated August, 2015
32 *****************************************************************************/
33
34 #include "lapacke_utils.h"
35
LAPACKE_zggsvp3_work(int matrix_layout,char jobu,char jobv,char jobq,lapack_int m,lapack_int p,lapack_int n,lapack_complex_double * a,lapack_int lda,lapack_complex_double * b,lapack_int ldb,double tola,double tolb,lapack_int * k,lapack_int * l,lapack_complex_double * u,lapack_int ldu,lapack_complex_double * v,lapack_int ldv,lapack_complex_double * q,lapack_int ldq,lapack_int * iwork,double * rwork,lapack_complex_double * tau,lapack_complex_double * work,lapack_int lwork)36 lapack_int LAPACKE_zggsvp3_work( int matrix_layout, char jobu, char jobv,
37 char jobq, lapack_int m, lapack_int p,
38 lapack_int n, lapack_complex_double* a,
39 lapack_int lda, lapack_complex_double* b,
40 lapack_int ldb, double tola, double tolb,
41 lapack_int* k, lapack_int* l,
42 lapack_complex_double* u, lapack_int ldu,
43 lapack_complex_double* v, lapack_int ldv,
44 lapack_complex_double* q, lapack_int ldq,
45 lapack_int* iwork, double* rwork,
46 lapack_complex_double* tau,
47 lapack_complex_double* work, lapack_int lwork )
48 {
49 lapack_int info = 0;
50 if( matrix_layout == LAPACK_COL_MAJOR ) {
51 /* Call LAPACK function and adjust info */
52 LAPACK_zggsvp3( &jobu, &jobv, &jobq, &m, &p, &n, a, &lda, b, &ldb, &tola,
53 &tolb, k, l, u, &ldu, v, &ldv, q, &ldq, iwork, rwork,
54 tau, work, &lwork, &info );
55 if( info < 0 ) {
56 info = info - 1;
57 }
58 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
59 lapack_int lda_t = MAX(1,m);
60 lapack_int ldb_t = MAX(1,p);
61 lapack_int ldq_t = MAX(1,n);
62 lapack_int ldu_t = MAX(1,m);
63 lapack_int ldv_t = MAX(1,p);
64 lapack_complex_double* a_t = NULL;
65 lapack_complex_double* b_t = NULL;
66 lapack_complex_double* u_t = NULL;
67 lapack_complex_double* v_t = NULL;
68 lapack_complex_double* q_t = NULL;
69 /* Check leading dimension(s) */
70 if( lda < n ) {
71 info = -9;
72 LAPACKE_xerbla( "LAPACKE_zggsvp3_work", info );
73 return info;
74 }
75 if( ldb < n ) {
76 info = -11;
77 LAPACKE_xerbla( "LAPACKE_zggsvp3_work", info );
78 return info;
79 }
80 if( ldq < n ) {
81 info = -21;
82 LAPACKE_xerbla( "LAPACKE_zggsvp3_work", info );
83 return info;
84 }
85 if( ldu < m ) {
86 info = -17;
87 LAPACKE_xerbla( "LAPACKE_zggsvp3_work", info );
88 return info;
89 }
90 if( ldv < p ) {
91 info = -19;
92 LAPACKE_xerbla( "LAPACKE_zggsvp3_work", info );
93 return info;
94 }
95 /* Query optimal working array(s) size if requested */
96 if( lwork == -1 ) {
97 LAPACK_zggsvp3( &jobu, &jobv, &jobq, &m, &p, &n, a, &lda_t, b,
98 &ldb_t, &tola, &tolb, k, l, u, &ldu_t, v,
99 &ldv_t, q, &ldq_t, iwork, rwork, tau, work,
100 &lwork, &info );
101 return (info < 0) ? (info - 1) : info;
102 }
103 /* Allocate memory for temporary array(s) */
104 a_t = (lapack_complex_double*)
105 LAPACKE_malloc( sizeof(lapack_complex_double) * lda_t * MAX(1,n) );
106 if( a_t == NULL ) {
107 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
108 goto exit_level_0;
109 }
110 b_t = (lapack_complex_double*)
111 LAPACKE_malloc( sizeof(lapack_complex_double) * ldb_t * MAX(1,n) );
112 if( b_t == NULL ) {
113 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
114 goto exit_level_1;
115 }
116 if( LAPACKE_lsame( jobu, 'u' ) ) {
117 u_t = (lapack_complex_double*)
118 LAPACKE_malloc( sizeof(lapack_complex_double) *
119 ldu_t * MAX(1,m) );
120 if( u_t == NULL ) {
121 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
122 goto exit_level_2;
123 }
124 }
125 if( LAPACKE_lsame( jobv, 'v' ) ) {
126 v_t = (lapack_complex_double*)
127 LAPACKE_malloc( sizeof(lapack_complex_double) *
128 ldv_t * MAX(1,p) );
129 if( v_t == NULL ) {
130 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
131 goto exit_level_3;
132 }
133 }
134 if( LAPACKE_lsame( jobq, 'q' ) ) {
135 q_t = (lapack_complex_double*)
136 LAPACKE_malloc( sizeof(lapack_complex_double) *
137 ldq_t * MAX(1,n) );
138 if( q_t == NULL ) {
139 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
140 goto exit_level_4;
141 }
142 }
143 /* Transpose input matrices */
144 LAPACKE_zge_trans( matrix_layout, m, n, a, lda, a_t, lda_t );
145 LAPACKE_zge_trans( matrix_layout, p, n, b, ldb, b_t, ldb_t );
146 /* Call LAPACK function and adjust info */
147 LAPACK_zggsvp3( &jobu, &jobv, &jobq, &m, &p, &n, a_t, &lda_t, b_t,
148 &ldb_t, &tola, &tolb, k, l, u_t, &ldu_t, v_t, &ldv_t,
149 q_t, &ldq_t, iwork, rwork, tau, work, &lwork, &info );
150 if( info < 0 ) {
151 info = info - 1;
152 }
153 /* Transpose output matrices */
154 LAPACKE_zge_trans( LAPACK_COL_MAJOR, m, n, a_t, lda_t, a, lda );
155 LAPACKE_zge_trans( LAPACK_COL_MAJOR, p, n, b_t, ldb_t, b, ldb );
156 if( LAPACKE_lsame( jobu, 'u' ) ) {
157 LAPACKE_zge_trans( LAPACK_COL_MAJOR, m, m, u_t, ldu_t, u, ldu );
158 }
159 if( LAPACKE_lsame( jobv, 'v' ) ) {
160 LAPACKE_zge_trans( LAPACK_COL_MAJOR, p, p, v_t, ldv_t, v, ldv );
161 }
162 if( LAPACKE_lsame( jobq, 'q' ) ) {
163 LAPACKE_zge_trans( LAPACK_COL_MAJOR, n, n, q_t, ldq_t, q, ldq );
164 }
165 /* Release memory and exit */
166 if( LAPACKE_lsame( jobq, 'q' ) ) {
167 LAPACKE_free( q_t );
168 }
169 exit_level_4:
170 if( LAPACKE_lsame( jobv, 'v' ) ) {
171 LAPACKE_free( v_t );
172 }
173 exit_level_3:
174 if( LAPACKE_lsame( jobu, 'u' ) ) {
175 LAPACKE_free( u_t );
176 }
177 exit_level_2:
178 LAPACKE_free( b_t );
179 exit_level_1:
180 LAPACKE_free( a_t );
181 exit_level_0:
182 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
183 LAPACKE_xerbla( "LAPACKE_zggsvp3_work", info );
184 }
185 } else {
186 info = -1;
187 LAPACKE_xerbla( "LAPACKE_zggsvp3_work", info );
188 }
189 return info;
190 }
191