Clp
1.17.3
src
ClpPEPrimalColumnDantzig.hpp
Go to the documentation of this file.
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/*
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Authors
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Jeremy Omer, Mehdi Towhidi
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Last update: april 10, 2015
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*/
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#ifndef ClpPEPrimalColumnDantzig_H
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#define ClpPEPrimalColumnDantzig_H
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#include "
ClpPrimalColumnDantzig.hpp
"
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#include "
ClpPrimalColumnPivot.hpp
"
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#include "
ClpSimplex.hpp
"
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#include "
CoinIndexedVector.hpp
"
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#include "
ClpFactorization.hpp
"
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#include "
ClpNonLinearCost.hpp
"
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#include "
ClpSimplexPrimal.hpp
"
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#include "
ClpPackedMatrix.hpp
"
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#include "
ClpPESimplex.hpp
"
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class
ClpPEPrimalColumnDantzig
:
public
ClpPrimalColumnDantzig
{
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public
:
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ClpPEPrimalColumnDantzig
(
double
psi = 0.5);
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ClpPEPrimalColumnDantzig
(
const
ClpPEPrimalColumnDantzig
&);
//copy constructor
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~ClpPEPrimalColumnDantzig
();
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ClpPEPrimalColumnDantzig
&
operator=
(
const
ClpPEPrimalColumnDantzig
&rhs);
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ClpPrimalColumnPivot
*
clone
(
bool
copyData =
true
)
const
;
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virtual
int
pivotColumn
(
CoinIndexedVector
*updates,
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CoinIndexedVector
*spareRow1,
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CoinIndexedVector
*spareRow2,
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CoinIndexedVector
*spareColumn1,
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CoinIndexedVector
*spareColumn2);
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virtual
void
saveWeights
(
ClpSimplex
*
model
,
int
mode);
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//---------------------------------------------------------------------------
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private
:
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/* this PESimplex object is used to identify the compatible variables */
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ClpPESimplex
*modelPE_;
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/* psi is the factor used in the bi-dimensional pricing, it is < 1 and
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1/psi grows with the priority given to compatible variables */
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double
psi_;
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/* useful counters for the update of the set of compatible variables */
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int
iCurrent_;
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int
iInterval_;
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/* record if previous iterations concluded that compatibles should not be checked */
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int
coDegenCompatibles_;
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int
coConsecutiveCompatibles_;
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bool
updateCompatibles_;
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};
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#endif
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/* vi: softtabstop=2 shiftwidth=2 expandtab tabstop=2
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*/
ClpSimplex
This solves LPs using the simplex method.
Definition:
ClpSimplex.hpp:106
CoinIndexedVector
ClpPEPrimalColumnDantzig::~ClpPEPrimalColumnDantzig
~ClpPEPrimalColumnDantzig()
destructor
CoinIndexedVector.hpp
ClpNonLinearCost.hpp
ClpPrimalColumnPivot.hpp
ClpPEPrimalColumnDantzig
Definition:
ClpPEPrimalColumnDantzig.hpp:23
ClpPEPrimalColumnDantzig::pivotColumn
virtual int pivotColumn(CoinIndexedVector *updates, CoinIndexedVector *spareRow1, CoinIndexedVector *spareRow2, CoinIndexedVector *spareColumn1, CoinIndexedVector *spareColumn2)
Returns pivot column, -1 if none.
ClpFactorization.hpp
ClpPEPrimalColumnDantzig::clone
ClpPrimalColumnPivot * clone(bool copyData=true) const
clone
ClpSimplexPrimal.hpp
ClpPrimalColumnDantzig
Primal Column Pivot Dantzig Algorithm Class.
Definition:
ClpPrimalColumnDantzig.hpp:19
ClpPEPrimalColumnDantzig::ClpPEPrimalColumnDantzig
ClpPEPrimalColumnDantzig(double psi=0.5)
constructors
ClpPEPrimalColumnDantzig::saveWeights
virtual void saveWeights(ClpSimplex *model, int mode)
Save weights - this may initialize weights as well This is as parent but may initialize ClpPESimplex.
ClpSimplex.hpp
ClpPrimalColumnPivot
Primal Column Pivot Abstract Base Class.
Definition:
ClpPrimalColumnPivot.hpp:25
ClpPESimplex
BASE CLASS FOR THE IMPROVED SIMPLEX.
Definition:
ClpPESimplex.hpp:42
ClpPrimalColumnPivot::model
ClpSimplex * model()
Returns model.
Definition:
ClpPrimalColumnPivot.hpp:117
ClpPESimplex.hpp
ClpPackedMatrix.hpp
ClpPrimalColumnDantzig.hpp
ClpPEPrimalColumnDantzig::operator=
ClpPEPrimalColumnDantzig & operator=(const ClpPEPrimalColumnDantzig &rhs)
assignment operator
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