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lapacke_sgbsvxx_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:
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 sgbsvxx
30* Author: Intel Corporation
31*****************************************************************************/
32
33#include "lapacke_utils.h"
34
35lapack_int LAPACKE_sgbsvxx_work( int matrix_layout, char fact, char trans,
36 lapack_int n, lapack_int kl, lapack_int ku,
37 lapack_int nrhs, float* ab, lapack_int ldab,
38 float* afb, lapack_int ldafb, lapack_int* ipiv,
39 char* equed, float* r, float* c, float* b,
40 lapack_int ldb, float* x, lapack_int ldx,
41 float* rcond, float* rpvgrw, 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_sgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab, &ldab, afb,
50 &ldafb, ipiv, equed, r, c, b, &ldb, x, &ldx, rcond,
51 rpvgrw, berr, &n_err_bnds, err_bnds_norm, err_bnds_comp,
52 &nparams, params, work, iwork, &info );
53 if( info < 0 ) {
54 info = info - 1;
55 }
56 } else if( matrix_layout == LAPACK_ROW_MAJOR ) {
57 lapack_int ldab_t = MAX(1,kl+ku+1);
58 lapack_int ldafb_t = MAX(1,2*kl+ku+1);
59 lapack_int ldb_t = MAX(1,n);
60 lapack_int ldx_t = MAX(1,n);
61 float* ab_t = NULL;
62 float* afb_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( ldab < n ) {
69 info = -9;
70 LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
71 return info;
72 }
73 if( ldafb < n ) {
74 info = -11;
75 LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
76 return info;
77 }
78 if( ldb < nrhs ) {
79 info = -17;
80 LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
81 return info;
82 }
83 if( ldx < nrhs ) {
84 info = -19;
85 LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
86 return info;
87 }
88 /* Allocate memory for temporary array(s) */
89 ab_t = (float*)LAPACKE_malloc( sizeof(float) * ldab_t * MAX(1,n) );
90 if( ab_t == NULL ) {
91 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
92 goto exit_level_0;
93 }
94 afb_t = (float*)LAPACKE_malloc( sizeof(float) * ldafb_t * MAX(1,n) );
95 if( afb_t == NULL ) {
96 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
97 goto exit_level_1;
98 }
99 b_t = (float*)LAPACKE_malloc( sizeof(float) * ldb_t * MAX(1,nrhs) );
100 if( b_t == NULL ) {
101 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
102 goto exit_level_2;
103 }
104 x_t = (float*)LAPACKE_malloc( sizeof(float) * ldx_t * MAX(1,nrhs) );
105 if( x_t == NULL ) {
106 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
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 ) {
112 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
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 ) {
118 info = LAPACK_TRANSPOSE_MEMORY_ERROR;
119 goto exit_level_5;
120 }
121 /* Transpose input matrices */
122 LAPACKE_sgb_trans( matrix_layout, n, n, kl, ku, ab, ldab, ab_t, ldab_t );
123 if( LAPACKE_lsame( fact, 'f' ) ) {
124 LAPACKE_sgb_trans( matrix_layout, n, n, kl, kl+ku, afb, ldafb, afb_t,
125 ldafb_t );
126 }
127 LAPACKE_sge_trans( matrix_layout, n, nrhs, b, ldb, b_t, ldb_t );
128 /* Call LAPACK function and adjust info */
129 LAPACK_sgbsvxx( &fact, &trans, &n, &kl, &ku, &nrhs, ab_t, &ldab_t,
130 afb_t, &ldafb_t, ipiv, equed, r, c, b_t, &ldb_t, x_t,
131 &ldx_t, rcond, rpvgrw, berr, &n_err_bnds,
132 err_bnds_norm_t, err_bnds_comp_t, &nparams, params,
133 work, iwork, &info );
134 if( info < 0 ) {
135 info = info - 1;
136 }
137 /* Transpose output matrices */
138 if( LAPACKE_lsame( fact, 'e' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
139 LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
140 LAPACKE_sgb_trans( LAPACK_COL_MAJOR, n, n, kl, ku, ab_t, ldab_t, ab,
141 ldab );
142 }
143 if( LAPACKE_lsame( fact, 'e' ) || LAPACKE_lsame( fact, 'n' ) ) {
144 LAPACKE_sgb_trans( LAPACK_COL_MAJOR, n, n, kl, kl+ku, afb_t,
145 ldafb_t, afb, ldafb );
146 }
147 if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
148 LAPACKE_lsame( *equed, 'c' ) || LAPACKE_lsame( *equed, 'r' ) ) ) {
149 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, b_t, ldb_t, b, ldb );
150 }
151 LAPACKE_sge_trans( LAPACK_COL_MAJOR, n, nrhs, x_t, ldx_t, x, ldx );
152 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_norm_t,
153 nrhs, err_bnds_norm, n_err_bnds );
154 LAPACKE_sge_trans( LAPACK_COL_MAJOR, nrhs, n_err_bnds, err_bnds_comp_t,
155 nrhs, err_bnds_comp, n_err_bnds );
156 /* Release memory and exit */
157 LAPACKE_free( err_bnds_comp_t );
158exit_level_5:
159 LAPACKE_free( err_bnds_norm_t );
160exit_level_4:
161 LAPACKE_free( x_t );
162exit_level_3:
163 LAPACKE_free( b_t );
164exit_level_2:
165 LAPACKE_free( afb_t );
166exit_level_1:
167 LAPACKE_free( ab_t );
168exit_level_0:
169 if( info == LAPACK_TRANSPOSE_MEMORY_ERROR ) {
170 LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
171 }
172 } else {
173 info = -1;
174 LAPACKE_xerbla( "LAPACKE_sgbsvxx_work", info );
175 }
176 return info;
177}
lapack_int
#define lapack_int
Definition lapack.h:83
LAPACK_sgbsvxx
#define LAPACK_sgbsvxx(...)
Definition lapack.h:1145
LAPACK_COL_MAJOR
#define LAPACK_COL_MAJOR
Definition lapacke.h:53
LAPACKE_free
#define LAPACKE_free(p)
Definition lapacke.h:46
LAPACK_ROW_MAJOR
#define LAPACK_ROW_MAJOR
Definition lapacke.h:52
LAPACKE_malloc
#define LAPACKE_malloc(size)
Definition lapacke.h:43
LAPACK_TRANSPOSE_MEMORY_ERROR
#define LAPACK_TRANSPOSE_MEMORY_ERROR
Definition lapacke.h:56
LAPACKE_sgbsvxx_work
lapack_int LAPACKE_sgbsvxx_work(int matrix_layout, char fact, char trans, lapack_int n, lapack_int kl, lapack_int ku, lapack_int nrhs, float *ab, lapack_int ldab, float *afb, lapack_int ldafb, lapack_int *ipiv, char *equed, float *r, float *c, float *b, lapack_int ldb, float *x, lapack_int ldx, float *rcond, float *rpvgrw, 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)
Definition lapacke_sgbsvxx_work.c:35
lapacke_utils.h
LAPACKE_lsame
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition lapacke_lsame.c:35
LAPACKE_xerbla
void LAPACKE_xerbla(const char *name, lapack_int info)
Definition lapacke_xerbla.c:36
LAPACKE_sge_trans
void LAPACKE_sge_trans(int matrix_layout, lapack_int m, lapack_int n, const float *in, lapack_int ldin, float *out, lapack_int ldout)
Definition lapacke_sge_trans.c:39
LAPACKE_sgb_trans
void LAPACKE_sgb_trans(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const float *in, lapack_int ldin, float *out, lapack_int ldout)
Definition lapacke_sgb_trans.c:39
MAX
#define MAX(x, y)
Definition lapacke_utils.h:46
r
r
Definition schur_example.m:55
x
x
Definition schur_example.m:53
n
n
Definition schur_example.m:9