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ClpNetworkMatrix.hpp
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1 /* $Id: ClpNetworkMatrix.hpp 2385 2019-01-06 19:43:06Z unxusr $ */
2 // Copyright (C) 2003, International Business Machines
3 // Corporation and others. All Rights Reserved.
4 // This code is licensed under the terms of the Eclipse Public License (EPL).
5
6 #ifndef ClpNetworkMatrix_H
7 #define ClpNetworkMatrix_H
8
9 #include "CoinPragma.hpp"
10
11 #include "ClpMatrixBase.hpp"
12
18 class ClpNetworkMatrix : public ClpMatrixBase {
19
20 public:
23 virtual CoinPackedMatrix *getPackedMatrix() const;
26 virtual bool isColOrdered() const
27 {
28 return true;
29 }
31 virtual CoinBigIndex getNumElements() const
32 {
33 return 2 * numberColumns_;
34 }
36 virtual int getNumCols() const
37 {
38 return numberColumns_;
39 }
41 virtual int getNumRows() const
42 {
43 return numberRows_;
44 }
45
50 virtual const double *getElements() const;
56 virtual const int *getIndices() const
57 {
58 return indices_;
59 }
60
61 virtual const CoinBigIndex *getVectorStarts() const;
63 virtual const int *getVectorLengths() const;
64
66 virtual void deleteCols(const int numDel, const int *indDel);
68 virtual void deleteRows(const int numDel, const int *indDel);
70 virtual void appendCols(int number, const CoinPackedVectorBase *const *columns);
72 virtual void appendRows(int number, const CoinPackedVectorBase *const *rows);
73 #ifndef SLIM_CLP
74
78 virtual int appendMatrix(int number, int type,
79 const CoinBigIndex *starts, const int *index,
80 const double *element, int numberOther = -1);
81 #endif
82
83 virtual ClpMatrixBase *reverseOrderedCopy() const;
85 virtual int countBasis(
86 const int *whichColumn,
87 int &numberColumnBasic);
89 virtual void fillBasis(ClpSimplex *model,
90 const int *whichColumn,
91 int &numberColumnBasic,
92 int *row, int *start,
93 int *rowCount, int *columnCount,
94 CoinFactorizationDouble *element);
99 virtual CoinBigIndex *dubiousWeights(const ClpSimplex *model, int *inputWeights) const;
103 virtual void rangeOfElements(double &smallestNegative, double &largestNegative,
104 double &smallestPositive, double &largestPositive);
107 virtual void unpack(const ClpSimplex *model, CoinIndexedVector *rowArray,
108 int column) const;
113 virtual void unpackPacked(ClpSimplex *model,
114 CoinIndexedVector *rowArray,
115 int column) const;
118 virtual void add(const ClpSimplex *model, CoinIndexedVector *rowArray,
119 int column, double multiplier) const;
121 virtual void add(const ClpSimplex *model, double *array,
122 int column, double multiplier) const;
124 virtual void releasePackedMatrix() const;
126 virtual bool canDoPartialPricing() const;
128 virtual void partialPricing(ClpSimplex *model, double start, double end,
129 int &bestSequence, int &numberWanted);
131
137 virtual void times(double scalar,
138 const double *x, double *y) const;
140 virtual void times(double scalar,
141 const double *x, double *y,
142 const double *rowScale,
143 const double *columnScale) const;
147 virtual void transposeTimes(double scalar,
148 const double *x, double *y) const;
150 virtual void transposeTimes(double scalar,
151 const double *x, double *y,
152 const double *rowScale,
153 const double *columnScale, double *spare = NULL) const;
158 virtual void transposeTimes(const ClpSimplex *model, double scalar,
159 const CoinIndexedVector *x,
160 CoinIndexedVector *y,
161 CoinIndexedVector *z) const;
165 virtual void subsetTransposeTimes(const ClpSimplex *model,
166 const CoinIndexedVector *x,
167 const CoinIndexedVector *y,
168 CoinIndexedVector *z) const;
170
173 inline bool trueNetwork() const
175 {
176 return trueNetwork_;
177 }
179
183 ClpNetworkMatrix();
185 ClpNetworkMatrix(int numberColumns, const int *head,
186 const int *tail);
188 virtual ~ClpNetworkMatrix();
190
194 ClpNetworkMatrix(const ClpNetworkMatrix &);
196 ClpNetworkMatrix(const CoinPackedMatrix &);
197
198 ClpNetworkMatrix &operator=(const ClpNetworkMatrix &);
200 virtual ClpMatrixBase *clone() const;
203 ClpNetworkMatrix(const ClpNetworkMatrix &wholeModel,
204 int numberRows, const int *whichRows,
205 int numberColumns, const int *whichColumns);
208 virtual ClpMatrixBase *subsetClone(
209 int numberRows, const int *whichRows,
210 int numberColumns, const int *whichColumns) const;
212
213 protected:
217 mutable CoinPackedMatrix *matrix_;
219 mutable int *lengths_;
221 int *indices_;
223 int numberRows_;
225 int numberColumns_;
227 bool trueNetwork_;
228
230 };
231
232 #endif
233
234 /* vi: softtabstop=2 shiftwidth=2 expandtab tabstop=2
235 */
ClpNetworkMatrix::appendRows
virtual void appendRows(int number, const CoinPackedVectorBase *const *rows)
Append Rows.
ClpNetworkMatrix::reverseOrderedCopy
virtual ClpMatrixBase * reverseOrderedCopy() const
Returns a new matrix in reverse order without gaps.
ClpNetworkMatrix::appendCols
virtual void appendCols(int number, const CoinPackedVectorBase *const *columns)
Append Columns.
ClpMatrixBase::type
int type() const
Returns type.
Definition: ClpMatrixBase.hpp:383
ClpNetworkMatrix::numberRows_
int numberRows_
Number of rows.
Definition: ClpNetworkMatrix.hpp:223
ClpNetworkMatrix::getNumRows
virtual int getNumRows() const
Number of rows.
Definition: ClpNetworkMatrix.hpp:41
ClpMatrixBase
Abstract base class for Clp Matrices.
Definition: ClpMatrixBase.hpp:38
ClpNetworkMatrix
This implements a simple network matrix as derived from ClpMatrixBase.
Definition: ClpNetworkMatrix.hpp:18
ClpNetworkMatrix::releasePackedMatrix
virtual void releasePackedMatrix() const
Allow any parts of a created CoinMatrix to be deleted.
ClpNetworkMatrix::appendMatrix
virtual int appendMatrix(int number, int type, const CoinBigIndex *starts, const int *index, const double *element, int numberOther=-1)
Append a set of rows/columns to the end of the matrix.
ClpNetworkMatrix::numberColumns_
int numberColumns_
Number of columns.
Definition: ClpNetworkMatrix.hpp:225
ClpNetworkMatrix::getPackedMatrix
virtual CoinPackedMatrix * getPackedMatrix() const
Return a complete CoinPackedMatrix.
ClpNetworkMatrix::getVectorLengths
virtual const int * getVectorLengths() const
The lengths of the major-dimension vectors.
ClpNetworkMatrix::trueNetwork
bool trueNetwork() const
Return true if really network, false if has slacks.
Definition: ClpNetworkMatrix.hpp:174
ClpNetworkMatrix::dubiousWeights
virtual CoinBigIndex * dubiousWeights(const ClpSimplex *model, int *inputWeights) const
Given positive integer weights for each row fills in sum of weights for each column (and slack)...
ClpNetworkMatrix::deleteRows
virtual void deleteRows(const int numDel, const int *indDel)
Delete the rows whose indices are listed in indDel.
ClpNetworkMatrix::~ClpNetworkMatrix
virtual ~ClpNetworkMatrix()
Destructor.
ClpNetworkMatrix::canDoPartialPricing
virtual bool canDoPartialPricing() const
Says whether it can do partial pricing.
ClpNetworkMatrix::getNumCols
virtual int getNumCols() const
Number of columns.
Definition: ClpNetworkMatrix.hpp:36
ClpMatrixBase.hpp
ClpNetworkMatrix::matrix_
CoinPackedMatrix * matrix_
For fake CoinPackedMatrix.
Definition: ClpNetworkMatrix.hpp:218
CoinPackedVectorBase
Abstract base class for various sparse vectors.
Definition: CoinPackedVectorBase.hpp:23
ClpNetworkMatrix::rangeOfElements
virtual void rangeOfElements(double &smallestNegative, double &largestNegative, double &smallestPositive, double &largestPositive)
Returns largest and smallest elements of both signs.
ClpNetworkMatrix::clone
virtual ClpMatrixBase * clone() const
Clone.
ClpNetworkMatrix::getNumElements
virtual CoinBigIndex getNumElements() const
Number of entries in the packed matrix.
Definition: ClpNetworkMatrix.hpp:31
ClpNetworkMatrix::isColOrdered
virtual bool isColOrdered() const
Whether the packed matrix is column major ordered or not.
Definition: ClpNetworkMatrix.hpp:26
CoinFactorizationDouble
double CoinFactorizationDouble
Definition: CoinTypes.hpp:57
ClpSimplex
This solves LPs using the simplex method.
Definition: ClpSimplex.hpp:106
CoinIndexedVector
Indexed Vector.
Definition: CoinIndexedVector.hpp:104
CoinPragma.hpp
ClpNetworkMatrix::fillBasis
virtual void fillBasis(ClpSimplex *model, const int *whichColumn, int &numberColumnBasic, int *row, int *start, int *rowCount, int *columnCount, CoinFactorizationDouble *element)
Fills in column part of basis.
ClpNetworkMatrix::partialPricing
virtual void partialPricing(ClpSimplex *model, double start, double end, int &bestSequence, int &numberWanted)
Partial pricing.
ClpNetworkMatrix::subsetTransposeTimes
virtual void subsetTransposeTimes(const ClpSimplex *model, const CoinIndexedVector *x, const CoinIndexedVector *y, CoinIndexedVector *z) const
Return x *A in z but just for indices in y.
ClpNetworkMatrix::operator=
ClpNetworkMatrix & operator=(const ClpNetworkMatrix &)
ClpNetworkMatrix::countBasis
virtual int countBasis(const int *whichColumn, int &numberColumnBasic)
Returns number of elements in column part of basis.
CoinPackedMatrix
Sparse Matrix Base Class.
Definition: CoinPackedMatrix.hpp:79
ClpNetworkMatrix::getVectorStarts
virtual const CoinBigIndex * getVectorStarts() const
ClpNetworkMatrix::ClpNetworkMatrix
ClpNetworkMatrix()
Default constructor.
CoinBigIndex
int CoinBigIndex
Definition: Coin_C_defines.h:136
ClpNetworkMatrix::transposeTimes
virtual void transposeTimes(double scalar, const double *x, double *y) const
Return y + x * scalar * A in y.
ClpNetworkMatrix::trueNetwork_
bool trueNetwork_
True if all entries have two elements.
Definition: ClpNetworkMatrix.hpp:227
ClpNetworkMatrix::unpackPacked
virtual void unpackPacked(ClpSimplex *model, CoinIndexedVector *rowArray, int column) const
Unpacks a column into an CoinIndexedvector in packed format Note that model is NOT const...
ClpNetworkMatrix::getElements
virtual const double * getElements() const
A vector containing the elements in the packed matrix.
ClpNetworkMatrix::subsetClone
virtual ClpMatrixBase * subsetClone(int numberRows, const int *whichRows, int numberColumns, const int *whichColumns) const
Subset clone (without gaps).
ClpNetworkMatrix::times
virtual void times(double scalar, const double *x, double *y) const
Return y + A * scalar *x in y.
ClpNetworkMatrix::getIndices
virtual const int * getIndices() const
A vector containing the minor indices of the elements in the packed matrix.
Definition: ClpNetworkMatrix.hpp:56
ClpNetworkMatrix::indices_
int * indices_
Data -1, then +1 rows in pairs (row==-1 if one entry)
Definition: ClpNetworkMatrix.hpp:221
ClpNetworkMatrix::deleteCols
virtual void deleteCols(const int numDel, const int *indDel)
Delete the columns whose indices are listed in indDel.
ClpNetworkMatrix::lengths_
int * lengths_
Definition: ClpNetworkMatrix.hpp:219
ClpNetworkMatrix::unpack
virtual void unpack(const ClpSimplex *model, CoinIndexedVector *rowArray, int column) const
Unpacks a column into an CoinIndexedvector.
ClpNetworkMatrix::add
virtual void add(const ClpSimplex *model, CoinIndexedVector *rowArray, int column, double multiplier) const
Adds multiple of a column into an CoinIndexedvector You can use quickAdd to add to vector...