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:
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
22 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
23 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
24 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
25 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
26 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
27 THE POSSIBILITY OF SUCH DAMAGE.
28 *****************************************************************************
29 * Contents: Native middle-level C interface to LAPACK function dporfsx
30 * Author: Intel Corporation
31 *****************************************************************************/
32
33 #include "lapacke_utils.h"
34
LAPACKE_dporfsx_work(int matrix_layout,char uplo,char equed,lapack_int n,lapack_int nrhs,const double * a,lapack_int lda,const double * af,lapack_int ldaf,const double * s,const double * b,lapack_int ldb,double * x,lapack_int ldx,double * rcond,double * berr,lapack_int n_err_bnds,double * err_bnds_norm,double * err_bnds_comp,lapack_int nparams,double * params,double * work,lapack_int * iwork)35 lapack_int LAPACKE_dporfsx_work( int matrix_layout, char uplo, char equed,
36 lapack_int n, lapack_int nrhs, const double* a,
37 lapack_int lda, const double* af,
38 lapack_int ldaf, const double* s,
39 const double* b, lapack_int ldb, double* x,
40 lapack_int ldx, double* rcond, double* berr,
41 lapack_int n_err_bnds, double* err_bnds_norm,
42 double* err_bnds_comp, lapack_int nparams,
43 double* params, double* work,
44 lapack_int* iwork )
45 {
46 lapack_int info = 0;
47 if( matrix_layout == LAPACK_COL_MAJOR ) {
48 /* Call LAPACK function and adjust info */
49 LAPACK_dporfsx( &uplo, &equed, &n, &nrhs, a, &lda, af, &ldaf, s, b,
50 &ldb, x, &ldx, rcond, berr, &n_err_bnds, err_bnds_norm,
51 err_bnds_comp, &nparams, params, work, iwork, &info );
52 if( info < 0 ) {
53 info = info - 1;
54 }
55 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
56 lapack_int lda_t = MAX(1,n);
57 lapack_int ldaf_t = MAX(1,n);
58 lapack_int ldb_t = MAX(1,n);
59 lapack_int ldx_t = MAX(1,n);
60 double* a_t = NULL;
61 double* af_t = NULL;
62 double* b_t = NULL;
63 double* x_t = NULL;
64 double* err_bnds_norm_t = NULL;
65 double* err_bnds_comp_t = NULL;
66 /* Check leading dimension(s) */
67 if( lda < n ) {
68 info = -7;
69 LAPACKE_xerbla( "LAPACKE_dporfsx_work", info );
70 return info;
71 }
72 if( ldaf < n ) {
73 info = -9;
74 LAPACKE_xerbla( "LAPACKE_dporfsx_work", info );
75 return info;
76 }
77 if( ldb < nrhs ) {
78 info = -12;
79 LAPACKE_xerbla( "LAPACKE_dporfsx_work", info );
80 return info;
81 }
82 if( ldx < nrhs ) {
83 info = -14;
84 LAPACKE_xerbla( "LAPACKE_dporfsx_work", info );
85 return info;
86 }
87 /* Allocate memory for temporary array(s) */
88 a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
89 if( a_t == NULL ) {
90 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
91 goto exit_level_0;
92 }
93 af_t = (double*)LAPACKE_malloc( sizeof(double) * ldaf_t * MAX(1,n) );
94 if( af_t == NULL ) {
95 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
96 goto exit_level_1;
97 }
98 b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,nrhs) );
99 if( b_t == NULL ) {
100 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
101 goto exit_level_2;
102 }
103 x_t = (double*)LAPACKE_malloc( sizeof(double) * ldx_t * MAX(1,nrhs) );
104 if( x_t == NULL ) {
105 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
106 goto exit_level_3;
107 }
108 err_bnds_norm_t = (double*)
109 LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
110 if( err_bnds_norm_t == NULL ) {
111 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
112 goto exit_level_4;
113 }
114 err_bnds_comp_t = (double*)
115 LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
116 if( err_bnds_comp_t == NULL ) {
117 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
118 goto exit_level_5;
119 }
120 /* Transpose input matrices */
121 LAPACKE_dsy_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
122 LAPACKE_dsy_trans( matrix_layout, uplo, n, af, ldaf, af_t, ldaf_t );
123 LAPACKE_dge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
124 LAPACKE_dge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
125 /* Call LAPACK function and adjust info */
126 LAPACK_dporfsx( &uplo, &equed, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t, s,
127 b_t, &ldb_t, x_t, &ldx_t, rcond, berr, &n_err_bnds,
128 err_bnds_norm_t, err_bnds_comp_t, &nparams, params,
129 work, iwork, &info );
130 if( info < 0 ) {
131 info = info - 1;
132 }
133 /* Transpose output matrices */
134 LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
135 LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
136 nrhs, err_bnds_norm, nrhs );
137 LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
138 nrhs, err_bnds_comp, nrhs );
139 /* Release memory and exit */
140 LAPACKE_free( err_bnds_comp_t );
141 exit_level_5:
142 LAPACKE_free( err_bnds_norm_t );
143 exit_level_4:
144 LAPACKE_free( x_t );
145 exit_level_3:
146 LAPACKE_free( b_t );
147 exit_level_2:
148 LAPACKE_free( af_t );
149 exit_level_1:
150 LAPACKE_free( a_t );
151 exit_level_0:
152 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
153 LAPACKE_xerbla( "LAPACKE_dporfsx_work", info );
154 }
155 } else {
156 info = -1;
157 LAPACKE_xerbla( "LAPACKE_dporfsx_work", info );
158 }
159 return info;
160 }
161