LAPACK 3.11.0
LAPACK: Linear Algebra PACKage
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lapacke_sgerfsx_work.c
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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:
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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
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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28*****************************************************************************
29* Contents: Native middle-level C interface to LAPACK function sgerfsx
30* Author: Intel Corporation
31*****************************************************************************/
32
33#include "lapacke_utils.h"
34
35lapack_int LAPACKE_sgerfsx_work( int matrix_layout, char trans, char equed,
36 lapack_int n, lapack_int nrhs, const float* a,
37 lapack_int lda, const float* af,
38 lapack_int ldaf, const lapack_int* ipiv,
39 const float* r, const float* c, const float* b,
40 lapack_int ldb, float* x, lapack_int ldx,
41 float* rcond, float* berr,
42 lapack_int n_err_bnds, float* err_bnds_norm,
43 float* err_bnds_comp, lapack_int nparams,
44 float* params, float* work, 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_sgerfsx( &trans, &equed, &n, &nrhs, a, &lda, af, &ldaf, ipiv, r,
50 c, b, &ldb, x, &ldx, rcond, 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 float* a_t = NULL;
62 float* af_t = NULL;
63 float* b_t = NULL;
64 float* x_t = NULL;
65 float* err_bnds_norm_t = NULL;
66 float* err_bnds_comp_t = NULL;
67 /* Check leading dimension(s) */
68 if( lda < n ) {
69 info = -7;
70 LAPACKE_xerbla( "LAPACKE_sgerfsx_work", info );
71 return info;
72 }
73 if( ldaf < n ) {
74 info = -9;
75 LAPACKE_xerbla( "LAPACKE_sgerfsx_work", info );
76 return info;
77 }
78 if( ldb < nrhs ) {
79 info = -14;
80 LAPACKE_xerbla( "LAPACKE_sgerfsx_work", info );
81 return info;
82 }
83 if( ldx < nrhs ) {
84 info = -16;
85 LAPACKE_xerbla( "LAPACKE_sgerfsx_work", info );
86 return info;
87 }
88 /* Allocate memory for temporary array(s) */
89 a_t = (float*)LAPACKE_malloc( sizeof(float) * lda_t * MAX(1,n) );
90 if( a_t == NULL ) {
92 goto exit_level_0;
93 }
94 af_t = (float*)LAPACKE_malloc( sizeof(float) * ldaf_t * MAX(1,n) );
95 if( af_t == NULL ) {
97 goto exit_level_1;
98 }
99 b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,nrhs) );
100 if( b_t == NULL ) {
102 goto exit_level_2;
103 }
104 x_t = (float*)LAPACKE_malloc( sizeof(float) * ldx_t * MAX(1,nrhs) );
105 if( x_t == NULL ) {
107 goto exit_level_3;
108 }
109 err_bnds_norm_t = (float*)
110 LAPACKE_malloc( sizeof(float) * nrhs * MAX(1,n_err_bnds) );
111 if( err_bnds_norm_t == NULL ) {
113 goto exit_level_4;
114 }
115 err_bnds_comp_t = (float*)
116 LAPACKE_malloc( sizeof(float) * 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_sge_trans( matrix_layout, n, n, a, lda, a_t, lda_t );
123 LAPACKE_sge_trans( matrix_layout, n, n, af, ldaf, af_t, ldaf_t );
124 LAPACKE_sge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
125 LAPACKE_sge_trans( matrix_layout, n, nrhs, x, ldx, x_t, ldx_t );
126 /* Call LAPACK function and adjust info */
127 LAPACK_sgerfsx( &trans, &equed, &n, &nrhs, a_t, &lda_t, af_t, &ldaf_t,
128 ipiv, r, c, b_t, &ldb_t, x_t, &ldx_t, rcond, berr,
129 &n_err_bnds, err_bnds_norm_t, err_bnds_comp_t, &nparams,
130 params, work, iwork, &info );
131 if( info < 0 ) {
132 info = info - 1;
133 }
134 /* Transpose output matrices */
135 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
136 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
137 nrhs, err_bnds_norm, nrhs );
138 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
139 nrhs, err_bnds_comp, nrhs );
140 /* Release memory and exit */
141 LAPACKE_free( err_bnds_comp_t );
142exit_level_5:
143 LAPACKE_free( err_bnds_norm_t );
144exit_level_4:
145 LAPACKE_free( x_t );
146exit_level_3:
147 LAPACKE_free( b_t );
148exit_level_2:
149 LAPACKE_free( af_t );
150exit_level_1:
151 LAPACKE_free( a_t );
152exit_level_0:
153 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
154 LAPACKE_xerbla( "LAPACKE_sgerfsx_work", info );
155 }
156 } else {
157 info = -1;
158 LAPACKE_xerbla( "LAPACKE_sgerfsx_work", info );
159 }
160 return info;
161}
#define lapack_int
Definition: lapack.h:87
#define LAPACK_sgerfsx(...)
Definition: lapack.h:3139
#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_sgerfsx_work(int matrix_layout, char trans, char equed, lapack_int n, lapack_int nrhs, const float *a, lapack_int lda, const float *af, lapack_int ldaf, const lapack_int *ipiv, const float *r, const float *c, const float *b, lapack_int ldb, float *x, lapack_int ldx, float *rcond, float *berr, lapack_int n_err_bnds, float *err_bnds_norm, float *err_bnds_comp, lapack_int nparams, float *params, float *work, lapack_int *iwork)
void LAPACKE_xerbla(const char *name, lapack_int info)
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
#define MAX(x, y)
Definition: lapacke_utils.h:46