LAPACK  3.10.0
LAPACK: Linear Algebra PACKage
lapacke_dgbsvxx.c
Go to the documentation of this file.
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 high-level C interface to LAPACK function dgbsvxx
30 * Author: Intel Corporation
31 *****************************************************************************/
32 
33 #include "lapacke_utils.h"
34 
35 lapack_int LAPACKE_dgbsvxx( int matrix_layout, char fact, char trans,
37  lapack_int nrhs, double* ab, lapack_int ldab,
38  double* afb, lapack_int ldafb, lapack_int* ipiv,
39  char* equed, double* r, double* c, double* b,
40  lapack_int ldb, double* x, lapack_int ldx,
41  double* rcond, double* rpvgrw, double* berr,
42  lapack_int n_err_bnds, double* err_bnds_norm,
43  double* err_bnds_comp, lapack_int nparams,
44  double* params )
45 {
46  lapack_int info = 0;
47  lapack_int* iwork = NULL;
48  double* work = NULL;
49  if( matrix_layout != LAPACK_COL_MAJOR && matrix_layout != LAPACK_ROW_MAJOR ) {
50  LAPACKE_xerbla( "LAPACKE_dgbsvxx", -1 );
51  return -1;
52  }
53 #ifndef LAPACK_DISABLE_NAN_CHECK
54  if( LAPACKE_get_nancheck() ) {
55  /* Optionally check input matrices for NaNs */
56  if( LAPACKE_dgb_nancheck( matrix_layout, n, n, kl, ku, ab, ldab ) ) {
57  return -8;
58  }
59  if( LAPACKE_lsame( fact, 'f' ) ) {
60  if( LAPACKE_dgb_nancheck( matrix_layout, n, n, kl, kl+ku, afb,
61  ldafb ) ) {
62  return -10;
63  }
64  }
65  if( LAPACKE_dge_nancheck( matrix_layout, n, nrhs, b, ldb ) ) {
66  return -16;
67  }
68  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
69  LAPACKE_lsame( *equed, 'c' ) ) ) {
70  if( LAPACKE_d_nancheck( n, c, 1 ) ) {
71  return -15;
72  }
73  }
74  if( nparams>0 ) {
75  if( LAPACKE_d_nancheck( nparams, params, 1 ) ) {
76  return -27;
77  }
78  }
79  if( LAPACKE_lsame( fact, 'f' ) && ( LAPACKE_lsame( *equed, 'b' ) ||
80  LAPACKE_lsame( *equed, 'r' ) ) ) {
81  if( LAPACKE_d_nancheck( n, r, 1 ) ) {
82  return -14;
83  }
84  }
85  }
86 #endif
87  /* Allocate memory for working array(s) */
88  iwork = (lapack_int*)LAPACKE_malloc( sizeof(lapack_int) * MAX(1,n) );
89  if( iwork == NULL ) {
91  goto exit_level_0;
92  }
93  work = (double*)LAPACKE_malloc( sizeof(double) * MAX(1,4*n) );
94  if( work == NULL ) {
96  goto exit_level_1;
97  }
98  /* Call middle-level interface */
99  info = LAPACKE_dgbsvxx_work( matrix_layout, fact, trans, n, kl, ku, nrhs, ab,
100  ldab, afb, ldafb, ipiv, equed, r, c, b, ldb, x,
101  ldx, rcond, rpvgrw, berr, n_err_bnds,
102  err_bnds_norm, err_bnds_comp, nparams, params,
103  work, iwork );
104  /* Release memory and exit */
105  LAPACKE_free( work );
106 exit_level_1:
107  LAPACKE_free( iwork );
108 exit_level_0:
109  if( info == LAPACK_WORK_MEMORY_ERROR ) {
110  LAPACKE_xerbla( "LAPACKE_dgbsvxx", info );
111  }
112  return info;
113 }
#define lapack_int
Definition: lapack.h:83
#define LAPACK_WORK_MEMORY_ERROR
Definition: lapacke.h:55
#define LAPACK_COL_MAJOR
Definition: lapacke.h:53
#define LAPACKE_free(p)
Definition: lapacke.h:46
#define LAPACK_ROW_MAJOR
Definition: lapacke.h:52
lapack_int LAPACKE_dgbsvxx_work(int matrix_layout, char fact, char trans, lapack_int n, lapack_int kl, lapack_int ku, lapack_int nrhs, double *ab, lapack_int ldab, double *afb, lapack_int ldafb, lapack_int *ipiv, char *equed, double *r, double *c, 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)
int LAPACKE_get_nancheck(void)
#define LAPACKE_malloc(size)
Definition: lapacke.h:43
lapack_int LAPACKE_dgbsvxx(int matrix_layout, char fact, char trans, lapack_int n, lapack_int kl, lapack_int ku, lapack_int nrhs, double *ab, lapack_int ldab, double *afb, lapack_int ldafb, lapack_int *ipiv, char *equed, double *r, double *c, 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)
lapack_logical LAPACKE_lsame(char ca, char cb)
Definition: lapacke_lsame.c:35
void LAPACKE_xerbla(const char *name, lapack_int info)
lapack_logical LAPACKE_d_nancheck(lapack_int n, const double *x, lapack_int incx)
#define MAX(x, y)
Definition: lapacke_utils.h:46
lapack_logical LAPACKE_dge_nancheck(int matrix_layout, lapack_int m, lapack_int n, const double *a, lapack_int lda)
lapack_logical LAPACKE_dgb_nancheck(int matrix_layout, lapack_int m, lapack_int n, lapack_int kl, lapack_int ku, const double *ab, lapack_int ldab)