LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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lapacke_dposvxx_work.c
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1/*****************************************************************************
2 Copyright (c) 2014, Intel Corp.
3 All rights reserved.
4
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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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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 dposvxx
30* Author: Intel Corporation
31*****************************************************************************/
32
33#include "lapacke_utils.h"
34
35lapack_int LAPACKE_dposvxx_work( int matrix_layout, char fact, char uplo,
36 lapack_int n, lapack_int nrhs, double* a,
37 lapack_int lda, double* af, lapack_int ldaf,
38 char* equed, double* s, double* b,
39 lapack_int ldb, double* x, lapack_int ldx,
40 double* rcond, double* rpvgrw, 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_dposvxx( &fact, &uplo, &n, &nrhs, a, &lda, af, &ldaf, equed, s,
50 b, &ldb, x, &ldx, rcond, rpvgrw, berr, &n_err_bnds,
51 err_bnds_norm, err_bnds_comp, &nparams, params, work,
52 iwork, &info );
53 if( info < 0 ) {
54 info = info - 1;
55 }
56 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
57 lapack_int lda_t = MAX(1,n);
58 lapack_int ldaf_t = MAX(1,n);
59 lapack_int ldb_t = MAX(1,n);
60 lapack_int ldx_t = MAX(1,n);
61 double* a_t = NULL;
62 double* af_t = NULL;
63 double* b_t = NULL;
64 double* x_t = NULL;
65 double* err_bnds_norm_t = NULL;
66 double* err_bnds_comp_t = NULL;
67 /* Check leading dimension(s) */
68 if( lda < n ) {
69 info = -7;
70 LAPACKE_xerbla( "LAPACKE_dposvxx_work", info );
71 return info;
72 }
73 if( ldaf < n ) {
74 info = -9;
75 LAPACKE_xerbla( "LAPACKE_dposvxx_work", info );
76 return info;
77 }
78 if( ldb < nrhs ) {
79 info = -13;
80 LAPACKE_xerbla( "LAPACKE_dposvxx_work", info );
81 return info;
82 }
83 if( ldx < nrhs ) {
84 info = -15;
85 LAPACKE_xerbla( "LAPACKE_dposvxx_work", info );
86 return info;
87 }
88 /* Allocate memory for temporary array(s) */
89 a_t = (double*)LAPACKE_malloc( sizeof(double) * lda_t * MAX(1,n) );
90 if( a_t == NULL ) {
92 goto exit_level_0;
93 }
94 af_t = (double*)LAPACKE_malloc( sizeof(double) * ldaf_t * MAX(1,n) );
95 if( af_t == NULL ) {
97 goto exit_level_1;
98 }
99 b_t = (double*)LAPACKE_malloc( sizeof(double) * ldb_t * MAX(1,nrhs) );
100 if( b_t == NULL ) {
102 goto exit_level_2;
103 }
104 x_t = (double*)LAPACKE_malloc( sizeof(double) * ldx_t * MAX(1,nrhs) );
105 if( x_t == NULL ) {
107 goto exit_level_3;
108 }
109 err_bnds_norm_t = (double*)
110 LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
111 if( err_bnds_norm_t == NULL ) {
113 goto exit_level_4;
114 }
115 err_bnds_comp_t = (double*)
116 LAPACKE_malloc( sizeof(double) * nrhs * MAX(1,n_err_bnds) );
117 if( err_bnds_comp_t == NULL ) {
119 goto exit_level_5;
120 }
121 /* Transpose input matrices */
122 LAPACKE_dpo_trans( matrix_layout, uplo, n, a, lda, a_t, lda_t );
123 if( LAPACKE_lsame( fact, 'f' ) ) {
124 LAPACKE_dpo_trans( matrix_layout, uplo, n, af, ldaf, af_t, ldaf_t );
125 }
126 LAPACKE_dge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
127 /* Call LAPACK function and adjust info */
128 LAPACK_dposvxx( &fact, &uplo, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t,
129 equed, s, b_t, &ldb_t, x_t, &ldx_t, rcond, rpvgrw, berr,
130 &n_err_bnds, err_bnds_norm_t, err_bnds_comp_t, &nparams,
131 params, work, iwork, &info );
132 if( info < 0 ) {
133 info = info - 1;
134 }
135 /* Transpose output matrices */
136 if( LAPACKE_lsame( fact, 'e' ) && LAPACKE_lsame( *equed, 'y' ) ) {
137 LAPACKE_dpo_trans( LAPACK_COL_MAJOR, uplo, n, a_t, lda_t, a, lda );
138 }
139 if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
140 LAPACKE_dpo_trans( LAPACK_COL_MAJOR, uplo, n, af_t, ldaf_t, af,
141 ldaf );
142 }
143 LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
144 LAPACKE_dge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
145 LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
146 nrhs, err_bnds_norm, n_err_bnds );
147 LAPACKE_dge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
148 nrhs, err_bnds_comp, n_err_bnds );
149 /* Release memory and exit */
150 LAPACKE_free( err_bnds_comp_t );
151exit_level_5:
152 LAPACKE_free( err_bnds_norm_t );
153exit_level_4:
154 LAPACKE_free( x_t );
155exit_level_3:
156 LAPACKE_free( b_t );
157exit_level_2:
158 LAPACKE_free( af_t );
159exit_level_1:
160 LAPACKE_free( a_t );
161exit_level_0:
162 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
163 LAPACKE_xerbla( "LAPACKE_dposvxx_work", info );
164 }
165 } else {
166 info = -1;
167 LAPACKE_xerbla( "LAPACKE_dposvxx_work", info );
168 }
169 return info;
170}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_dposvxx(...)
Definition: lapack.h:13250
#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_int LAPACKE_dposvxx_work(int matrix_layout, char fact, char uplo, lapack_int n, lapack_int nrhs, double *a, lapack_int lda, double *af, lapack_int ldaf, char *equed, double *s, double *b, lapack_int ldb, double *x, lapack_int ldx, double *rcond, double *rpvgrw, 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)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
#define MAX(x, y)
Definition: lapacke_utils.h:46
void LAPACKE_dge_trans(int matrix_layout, lapack_int m, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)
void LAPACKE_dpo_trans(int matrix_layout, char uplo, lapack_int n, const double *in, lapack_int ldin, double *out, lapack_int ldout)