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BlisPresolve.h
Go to the documentation of this file.
1 /*===========================================================================*
2 * This file is part of the BiCePS Linear Integer Solver (BLIS). *
3 * *
4 * BLIS is distributed under the Eclipse Public License as part of the *
5 * COIN-OR repository (http://www.coin-or.org). *
6 * *
7 * Authors: *
8 * *
9 * Yan Xu, Lehigh University *
10 * Ted Ralphs, Lehigh University *
11 * *
12 * Conceptual Design: *
13 * *
14 * Yan Xu, Lehigh University *
15 * Ted Ralphs, Lehigh University *
16 * Laszlo Ladanyi, IBM T.J. Watson Research Center *
17 * Matthew Saltzman, Clemson University *
18 * *
19 * *
20 * Copyright (C) 2001-2013, Lehigh University, Yan Xu, and Ted Ralphs. *
21 * All Rights Reserved. *
22 *===========================================================================*/
23
24 #ifndef BlisPresolve_H_
25 #define BlisPresolve_H_
26
27 #if defined(_MSC_VER)
28 // Turn off compiler warning about long names
29 # pragma warning(disable:4786)
30 #endif
31
32 #include "OsiPresolve.hpp"
33
34 //#############################################################################
35
37 class BlisPresolve : public OsiPresolve
38 {
39 private:
40
41 CoinPresolveMatrix *preMatrix_;
42 CoinPostsolveMatrix *postMatrix_;
43
44 public:
45
47 BlisPresolve() :
48 preMatrix_(0),
49 postMatrix_(0) {}
50
52 virtual ~BlisPresolve() {
53 delete preMatrix_;
54 delete postMatrix_;
55 }
56
58 virtual OsiSolverInterface *preprocess(OsiSolverInterface & origModel,
59 double feasibilityTolerance=0.0,
60 bool keepIntegers=true,
61 int numberPasses=5,
62 const char * prohibited=NULL);
63
65 virtual void postprocess(bool updateStatus=true);
66 };
67
68 #endif
69
70 //#############################################################################
BlisPresolve::BlisPresolve
BlisPresolve()
Default constructor (empty object)
Definition: BlisPresolve.h:47
BlisPresolve
A interface to Osi/Coin Presolve.
Definition: BlisPresolve.h:37
BlisPresolve::preMatrix_
CoinPresolveMatrix * preMatrix_
Definition: BlisPresolve.h:41
CoinPostsolveMatrix
Augments CoinPrePostsolveMatrix with information about the problem that is only needed during postsol...
Definition: CoinPresolveMatrix.hpp:1421
CoinPresolveMatrix
Augments CoinPrePostsolveMatrix with information about the problem that is only needed during presolv...
Definition: CoinPresolveMatrix.hpp:835
OsiPresolve.hpp
BlisPresolve::preprocess
virtual OsiSolverInterface * preprocess(OsiSolverInterface &origModel, double feasibilityTolerance=0.0, bool keepIntegers=true, int numberPasses=5, const char *prohibited=NULL)
Presolve.
BlisPresolve::~BlisPresolve
virtual ~BlisPresolve()
Virtual destructor.
Definition: BlisPresolve.h:52
BlisPresolve::postMatrix_
CoinPostsolveMatrix * postMatrix_
Definition: BlisPresolve.h:42
OsiPresolve
OSI interface to COIN problem simplification capabilities.
Definition: OsiPresolve.hpp:62
OsiSolverInterface
Abstract Base Class for describing an interface to a solver.
Definition: OsiSolverInterface.hpp:62
BlisPresolve::postprocess
virtual void postprocess(bool updateStatus=true)
Postsolve.