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Annotation of OpenXM_contrib2/asir2000/builtin/numerical.c, Revision 1.4

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'
                     34:  * RIGHTS. NO FLL DEALER, AGENT, EMPLOYEES IS AUTHORIZED TO MAKE ANY
                     35:  * MODIFICATIONS, EXTENSIONS, OR ADDITIONS TO THIS WARRANTY.
                     36:  * UNDER NO CIRCUMSTANCES AND UNDER NO LEGAL THEORY, TORT, CONTRACT,
                     37:  * OR OTHERWISE, SHALL FLL BE LIABLE TO YOU OR ANY OTHER PERSON FOR ANY
                     38:  * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, PUNITIVE OR CONSEQUENTIAL
                     39:  * DAMAGES OF ANY CHARACTER, INCLUDING, WITHOUT LIMITATION, DAMAGES
                     40:  * ARISING OUT OF OR RELATING TO THE SOFTWARE OR THIS AGREEMENT, DAMAGES
                     41:  * FOR LOSS OF GOODWILL, WORK STOPPAGE, OR LOSS OF DATA, OR FOR ANY
                     42:  * DAMAGES, EVEN IF FLL SHALL HAVE BEEN INFORMED OF THE POSSIBILITY OF
                     43:  * SUCH DAMAGES, OR FOR ANY CLAIM BY ANY OTHER PARTY. EVEN IF A PART
                     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:  *
1.4     ! ohara      48:  * $OpenXM: OpenXM_contrib2/asir2000/builtin/numerical.c,v 1.3 2000/08/22 05:03:59 noro Exp $
1.2       noro       49: */
1.1       noro       50: #include "ca.h"
                     51: #include "parse.h"
                     52:
1.4     ! ohara      53: #if defined(LAPACK)
1.1       noro       54: #include <f2c.h>
                     55:
                     56: void Pflinsolve();
                     57:
                     58: struct ftab numerical_tab[] = {
                     59:        {"flinsolve",Pflinsolve,2},
                     60:        {0,0,0},
                     61: };
                     62:
                     63: void Pflinsolve(arg,rp)
                     64: NODE arg;
                     65: VECT *rp;
                     66: {
                     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;
                     77:
                     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;
                    106: }
                    107: #endif