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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 sggesx
30 * Author: Intel Corporation
31 * Generated November 2015
32 *****************************************************************************/
33
34 #include "lapacke_utils.h"
35
LAPACKE_sggesx_work(int matrix_layout,char jobvsl,char jobvsr,char sort,LAPACK_S_SELECT3 selctg,char sense,lapack_int n,float * a,lapack_int lda,float * b,lapack_int ldb,lapack_int * sdim,float * alphar,float * alphai,float * beta,float * vsl,lapack_int ldvsl,float * vsr,lapack_int ldvsr,float * rconde,float * rcondv,float * work,lapack_int lwork,lapack_int * iwork,lapack_int liwork,lapack_logical * bwork)36 lapack_int LAPACKE_sggesx_work( int matrix_layout, char jobvsl, char jobvsr,
37 char sort, LAPACK_S_SELECT3 selctg, char sense,
38 lapack_int n, float* a, lapack_int lda,
39 float* b, lapack_int ldb, lapack_int* sdim,
40 float* alphar, float* alphai, float* beta,
41 float* vsl, lapack_int ldvsl, float* vsr,
42 lapack_int ldvsr, float* rconde, float* rcondv,
43 float* work, lapack_int lwork,
44 lapack_int* iwork, lapack_int liwork,
45 lapack_logical* bwork )
46 {
47 lapack_int info = 0;
48 if( matrix_layout == LAPACK_COL_MAJOR ) {
49 /* Call LAPACK function and adjust info */
50 LAPACK_sggesx( &jobvsl, &jobvsr, &sort, selctg, &sense, &n, a, &lda, b,
51 &ldb, sdim, alphar, alphai, beta, vsl, &ldvsl, vsr,
52 &ldvsr, rconde, rcondv, work, &lwork, iwork, &liwork,
53 bwork, &info );
54 if( info < 0 ) {
55 info = info - 1;
56 }
57 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
58 lapack_int lda_t = MAX(1,n);
59 lapack_int ldb_t = MAX(1,n);
60 lapack_int ldvsl_t = MAX(1,n);
61 lapack_int ldvsr_t = MAX(1,n);
62 float* a_t = NULL;
63 float* b_t = NULL;
64 float* vsl_t = NULL;
65 float* vsr_t = NULL;
66 /* Check leading dimension(s) */
67 if( lda < n ) {
68 info = -9;
69 LAPACKE_xerbla( "LAPACKE_sggesx_work", info );
70 return info;
71 }
72 if( ldb < n ) {
73 info = -11;
74 LAPACKE_xerbla( "LAPACKE_sggesx_work", info );
75 return info;
76 }
77 if( ldvsl < n ) {
78 info = -17;
79 LAPACKE_xerbla( "LAPACKE_sggesx_work", info );
80 return info;
81 }
82 if( ldvsr < n ) {
83 info = -19;
84 LAPACKE_xerbla( "LAPACKE_sggesx_work", info );
85 return info;
86 }
87 /* Query optimal working array(s) size if requested */
88 if( liwork == -1 || lwork == -1 ) {
89 LAPACK_sggesx( &jobvsl, &jobvsr, &sort, selctg, &sense, &n, a,
90 &lda_t, b, &ldb_t, sdim, alphar, alphai, beta, vsl,
91 &ldvsl_t, vsr, &ldvsr_t, rconde, rcondv, work,
92 &lwork, iwork, &liwork, bwork, &info );
93 return (info < 0) ? (info - 1) : info;
94 }
95 /* Allocate memory for temporary array(s) */
96 a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
97 if( a_t == NULL ) {
98 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
99 goto exit_level_0;
100 }
101 b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,n) );
102 if( b_t == NULL ) {
103 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
104 goto exit_level_1;
105 }
106 if( LAPACKE_lsame( jobvsl, 'v' ) ) {
107 vsl_t = (float*)
108 LAPACKE_malloc( sizeof(float) * ldvsl_t * MAX(1,n) );
109 if( vsl_t == NULL ) {
110 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
111 goto exit_level_2;
112 }
113 }
114 if( LAPACKE_lsame( jobvsr, 'v' ) ) {
115 vsr_t = (float*)
116 LAPACKE_malloc( sizeof(float) * ldvsr_t * MAX(1,n) );
117 if( vsr_t == NULL ) {
118 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
119 goto exit_level_3;
120 }
121 }
122 /* Transpose input matrices */
123 LAPACKE_sge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
124 LAPACKE_sge_trans( matrix_layout, n, n, b, ldb, b_t, ldb_t );
125 /* Call LAPACK function and adjust info */
126 LAPACK_sggesx( &jobvsl, &jobvsr, &sort, selctg, &sense, &n, a_t, &lda_t,
127 b_t, &ldb_t, sdim, alphar, alphai, beta, vsl_t, &ldvsl_t,
128 vsr_t, &ldvsr_t, rconde, rcondv, work, &lwork, iwork,
129 &liwork, bwork, &info );
130 if( info < 0 ) {
131 info = info - 1;
132 }
133 /* Transpose output matrices */
134 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, a_t, lda_t, a, lda );
135 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, b_t, ldb_t, b, ldb );
136 if( LAPACKE_lsame( jobvsl, 'v' ) ) {
137 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, vsl_t, ldvsl_t, vsl,
138 ldvsl );
139 }
140 if( LAPACKE_lsame( jobvsr, 'v' ) ) {
141 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, n, vsr_t, ldvsr_t, vsr,
142 ldvsr );
143 }
144 /* Release memory and exit */
145 if( LAPACKE_lsame( jobvsr, 'v' ) ) {
146 LAPACKE_free( vsr_t );
147 }
148 exit_level_3:
149 if( LAPACKE_lsame( jobvsl, 'v' ) ) {
150 LAPACKE_free( vsl_t );
151 }
152 exit_level_2:
153 LAPACKE_free( b_t );
154 exit_level_1:
155 LAPACKE_free( a_t );
156 exit_level_0:
157 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
158 LAPACKE_xerbla( "LAPACKE_sggesx_work", info );
159 }
160 } else {
161 info = -1;
162 LAPACKE_xerbla( "LAPACKE_sggesx_work", info );
163 }
164 return info;
165 }
166