Files @ r1047:ddd3c0d3d9bf

Location: LEMON/LEMON-official/lemon/lp_base.cc

Load file history 
r1047:ddd3c0d3d9bf
937 B
text/x-c++src
Show annotation Show as raw Download as raw
gravatar
kpeter (Peter Kovacs)
Implement the scaling Price Refinement heuristic in CostScaling (#417) instead of Early Termination. These two heuristics are similar, but the newer one is faster and not only makes it possible to skip some epsilon phases, but it can improve the performance of the other phases, as well.
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
/* -*- mode: C++; indent-tabs-mode: nil; -*-

 *

 * This file is a part of LEMON, a generic C++ optimization library.

 *

 * Copyright (C) 2003-2010

 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport

 * (Egervary Research Group on Combinatorial Optimization, EGRES).

 *

 * Permission to use, modify and distribute this software is granted

 * provided that this copyright notice appears in all copies. For

 * precise terms see the accompanying LICENSE file.

 *

 * This software is provided "AS IS" with no warranty of any kind,

 * express or implied, and with no claim as to its suitability for any

 * purpose.

 *

 */



///\file

///\brief The implementation of the LP solver interface.



#include <lemon/lp_base.h>

namespace lemon {



  const LpBase::Value LpBase::INF =

    std::numeric_limits<LpBase::Value>::infinity();

  const LpBase::Value LpBase::NaN =

    std::numeric_limits<LpBase::Value>::quiet_NaN();



} //namespace lemon