Annotation of OpenXM_contrib2/asir2000/builtin/numerical.c, Revision 1.7
1.2 noro 1: /*
2: * Copyright (c) 1994-2000 FUJITSU LABORATORIES LIMITED
3: * All rights reserved.
4: *
5: * FUJITSU LABORATORIES LIMITED ("FLL") hereby grants you a limited,
6: * non-exclusive and royalty-free license to use, copy, modify and
7: * redistribute, solely for non-commercial and non-profit purposes, the
8: * computer program, "Risa/Asir" ("SOFTWARE"), subject to the terms and
9: * conditions of this Agreement. For the avoidance of doubt, you acquire
10: * only a limited right to use the SOFTWARE hereunder, and FLL or any
11: * third party developer retains all rights, including but not limited to
12: * copyrights, in and to the SOFTWARE.
13: *
14: * (1) FLL does not grant you a license in any way for commercial
15: * purposes. You may use the SOFTWARE only for non-commercial and
16: * non-profit purposes only, such as academic, research and internal
17: * business use.
18: * (2) The SOFTWARE is protected by the Copyright Law of Japan and
19: * international copyright treaties. If you make copies of the SOFTWARE,
20: * with or without modification, as permitted hereunder, you shall affix
21: * to all such copies of the SOFTWARE the above copyright notice.
22: * (3) An explicit reference to this SOFTWARE and its copyright owner
23: * shall be made on your publication or presentation in any form of the
24: * results obtained by use of the SOFTWARE.
25: * (4) In the event that you modify the SOFTWARE, you shall notify FLL by
1.3 noro 26: * e-mail at risa-admin@sec.flab.fujitsu.co.jp of the detailed specification
1.2 noro 27: * for such modification or the source code of the modified part of the
28: * SOFTWARE.
29: *
30: * THE SOFTWARE IS PROVIDED AS IS WITHOUT ANY WARRANTY OF ANY KIND. FLL
31: * MAKES ABSOLUTELY NO WARRANTIES, EXPRESSED, IMPLIED OR STATUTORY, AND
32: * EXPRESSLY DISCLAIMS ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS
33: * FOR A PARTICULAR PURPOSE OR NONINFRINGEMENT OF THIRD PARTIES'
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35: * MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.
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37: * OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY
38: * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
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40: * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
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44: * OF THE SOFTWARE HAS BEEN DEVELOPED BY A THIRD PARTY, THE THIRD PARTY
45: * DEVELOPER SHALL HAVE NO LIABILITY IN CONNECTION WITH THE USE,
46: * PERFORMANCE OR NON-PERFORMANCE OF THE SOFTWARE.
47: *
1.7 ! noro 48: * $OpenXM: OpenXM_contrib2/asir2000/builtin/numerical.c,v 1.6 2003/03/07 06:39:55 noro Exp $
1.2 noro 49: */
1.1 noro 50: #include "ca.h"
51: #include "parse.h"
52:
1.6 noro 53: #if defined(LAPACK)
1.1 noro 54: #include <f2c.h>
55:
56: void Pflinsolve();
57:
58: struct ftab numerical_tab[] = {
1.7 ! noro 59: {"flinsolve",Pflinsolve,2},
! 60: {0,0,0},
1.1 noro 61: };
62:
63: void Pflinsolve(arg,rp)
64: NODE arg;
65: VECT *rp;
66: {
1.7 ! noro 67: MAT mat;
! 68: VECT b,r;
! 69: int i,j;
! 70: integer n,nrhs,lda,ldb,info;
! 71: integer *ipiv;
! 72: doublereal *m_array,*b_array;
! 73: Num **mb;
! 74: Num *vb;
! 75: Real *rb;
! 76: char trans;
1.1 noro 77:
1.7 ! noro 78: mat=(MAT)ARG0(arg); b=(VECT)ARG1(arg);
! 79: n=mat->row;
! 80: if ( n != mat->col )
! 81: error("flinsolve : non-square matrix");
! 82: if ( n != b->len )
! 83: error("flinsolve : inconsistent rhs");
! 84: m_array = (doublereal *)MALLOC_ATOMIC(n*n*sizeof(double));
! 85: b_array = (doublereal *)MALLOC_ATOMIC(n*sizeof(double));
! 86: ipiv = (integer *)MALLOC_ATOMIC(n*sizeof(integer));
! 87: for ( i = 0, mb = (Num **)mat->body; i < n; i++ )
! 88: for ( j = 0; j < n; j++ )
! 89: m_array[i*n+j] = ToReal(mb[j][i]);
! 90: for ( i = 0, vb = (Num *)b->body; i < n; i++ )
! 91: b_array[i] = ToReal(vb[i]);
! 92: trans = 'N';
! 93: nrhs = 1;
! 94: lda = n;
! 95: ldb = n;
! 96: dgetrf_(&n,&n,m_array,&lda,ipiv,&info);
! 97: if ( info )
! 98: error("flinsolve : LU factorization failed");
! 99: dgetrs_(&trans,&n,&nrhs,m_array,&lda,ipiv,b_array,&ldb,&info);
! 100: if ( info )
! 101: error("flinsolve : solving failed");
! 102: MKVECT(r,n);
! 103: for ( i = 0, rb = (Real *)r->body; i < n; i++ )
! 104: MKReal(b_array[i],rb[i]);
! 105: *rp = r;
1.1 noro 106: }
107: #endif
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