63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/*@HEADER
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// ***********************************************************************
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//
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// Ifpack: Object-Oriented Algebraic Preconditioner Package
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// Copyright (2002) Sandia Corporation
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//
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// Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive
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// license for use of this work by or on behalf of the U.S. Government.
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//
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// This library is free software; you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as
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// published by the Free Software Foundation; either version 2.1 of the
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// License, or (at your option) any later version.
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//
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public
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// License along with this library; if not, write to the Free Software
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// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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// USA
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// Questions? Contact Michael A. Heroux (maherou@sandia.gov)
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//
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// ***********************************************************************
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//@HEADER
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*/
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#ifndef IFPACK_IC_UTILS_H
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#define IFPACK_IC_UTILS_H
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typedef struct {
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double *val; /* also known as A */
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int *col; /* also known as JA; first column is column 0 */
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int *ptr; /* also known as IA; with ptr[0] = 0 */
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} Ifpack_AIJMatrix;
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extern "C" {
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void quicksort (int *const pbase, double *const daux, int total_elems);
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}
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void Ifpack_AIJMatrix_dealloc(Ifpack_AIJMatrix *a);
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void crout_ict(
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int n,
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#ifdef IFPACK
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void * A,
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int maxentries,
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int (*getcol)( void * A, int col, int ** nentries, double * val, int * ind),
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int (*getdiag)( void *A, double * diag),
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#else
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const Ifpack_AIJMatrix *AL,
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const double *Adiag,
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#endif
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double droptol,
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int lfil,
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Ifpack_AIJMatrix *L,
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double **pdiag);
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#endif
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