Clp 1.16.9
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ClpPackedMatrix.hpp
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1/* $Id: ClpPackedMatrix.hpp 2078 2015-01-05 12:39:49Z forrest $ */
2// Copyright (C) 2002, 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 ClpPackedMatrix_H
7#define ClpPackedMatrix_H
8
9#include "CoinPragma.hpp"
10
11#include "ClpMatrixBase.hpp"
12
19class ClpPackedMatrix2;
20class ClpPackedMatrix3;
21class ClpPackedMatrix : public ClpMatrixBase {
22
23public:
27 virtual CoinPackedMatrix * getPackedMatrix() const {
28 return matrix_;
29 }
31 virtual bool isColOrdered() const {
32 return matrix_->isColOrdered();
33 }
35 virtual CoinBigIndex getNumElements() const {
36 return matrix_->getNumElements();
37 }
39 virtual int getNumCols() const {
40 return matrix_->getNumCols();
41 }
43 virtual int getNumRows() const {
44 return matrix_->getNumRows();
45 }
46
51 virtual const double * getElements() const {
52 return matrix_->getElements();
53 }
55 inline double * getMutableElements() const {
56 return matrix_->getMutableElements();
57 }
63 virtual const int * getIndices() const {
64 return matrix_->getIndices();
65 }
66
67 virtual const CoinBigIndex * getVectorStarts() const {
68 return matrix_->getVectorStarts();
69 }
71 virtual const int * getVectorLengths() const {
72 return matrix_->getVectorLengths();
73 }
75 virtual int getVectorLength(int index) const {
76 return matrix_->getVectorSize(index);
77 }
78
80 virtual void deleteCols(const int numDel, const int * indDel);
82 virtual void deleteRows(const int numDel, const int * indDel);
83#ifndef CLP_NO_VECTOR
85 virtual void appendCols(int number, const CoinPackedVectorBase * const * columns);
87 virtual void appendRows(int number, const CoinPackedVectorBase * const * rows);
88#endif
93 virtual int appendMatrix(int number, int type,
94 const CoinBigIndex * starts, const int * index,
95 const double * element, int numberOther = -1);
100 virtual void replaceVector(const int index,
101 const int numReplace, const double * newElements) {
102 matrix_->replaceVector(index, numReplace, newElements);
103 }
107 virtual void modifyCoefficient(int row, int column, double newElement,
108 bool keepZero = false) {
109 matrix_->modifyCoefficient(row, column, newElement, keepZero);
110 }
112 virtual ClpMatrixBase * reverseOrderedCopy() const;
114 virtual CoinBigIndex countBasis(const int * whichColumn,
115 int & numberColumnBasic);
117 virtual void fillBasis(ClpSimplex * model,
118 const int * whichColumn,
119 int & numberColumnBasic,
120 int * row, int * start,
121 int * rowCount, int * columnCount,
122 CoinFactorizationDouble * element);
125 virtual int scale(ClpModel * model, const ClpSimplex * baseModel = NULL) const ;
128 virtual void scaleRowCopy(ClpModel * model) const ;
130 void createScaledMatrix(ClpSimplex * model) const;
134 virtual ClpMatrixBase * scaledColumnCopy(ClpModel * model) const ;
145 virtual bool allElementsInRange(ClpModel * model,
146 double smallest, double largest,
147 int check = 15);
151 virtual void rangeOfElements(double & smallestNegative, double & largestNegative,
152 double & smallestPositive, double & largestPositive);
153
156 virtual void unpack(const ClpSimplex * model, CoinIndexedVector * rowArray,
157 int column) const ;
162 virtual void unpackPacked(ClpSimplex * model,
163 CoinIndexedVector * rowArray,
164 int column) const;
167 virtual void add(const ClpSimplex * model, CoinIndexedVector * rowArray,
168 int column, double multiplier) const ;
170 virtual void add(const ClpSimplex * model, double * array,
171 int column, double multiplier) const;
173 virtual void releasePackedMatrix() const { }
178 virtual CoinBigIndex * dubiousWeights(const ClpSimplex * model, int * inputWeights) const;
180 virtual bool canDoPartialPricing() const;
182 virtual void partialPricing(ClpSimplex * model, double start, double end,
183 int & bestSequence, int & numberWanted);
185 virtual int refresh(ClpSimplex * model);
186 // Really scale matrix
187 virtual void reallyScale(const double * rowScale, const double * columnScale);
193 virtual void setDimensions(int numrows, int numcols);
195
201 virtual void times(double scalar,
202 const double * x, double * y) const;
204 virtual void times(double scalar,
205 const double * x, double * y,
206 const double * rowScale,
207 const double * columnScale) const;
211 virtual void transposeTimes(double scalar,
212 const double * x, double * y) const;
214 virtual void transposeTimes(double scalar,
215 const double * x, double * y,
216 const double * rowScale,
217 const double * columnScale,
218 double * spare = NULL) const;
223 void transposeTimesSubset( int number,
224 const int * which,
225 const double * pi, double * y,
226 const double * rowScale,
227 const double * columnScale,
228 double * spare = NULL) const;
233 virtual void transposeTimes(const ClpSimplex * model, double scalar,
234 const CoinIndexedVector * x,
235 CoinIndexedVector * y,
236 CoinIndexedVector * z) const;
241 void transposeTimesByColumn(const ClpSimplex * model, double scalar,
242 const CoinIndexedVector * x,
243 CoinIndexedVector * y,
244 CoinIndexedVector * z) const;
250 virtual void transposeTimesByRow(const ClpSimplex * model, double scalar,
251 const CoinIndexedVector * x,
252 CoinIndexedVector * y,
253 CoinIndexedVector * z) const;
257 virtual void subsetTransposeTimes(const ClpSimplex * model,
258 const CoinIndexedVector * x,
259 const CoinIndexedVector * y,
260 CoinIndexedVector * z) const;
263 virtual bool canCombine(const ClpSimplex * model,
264 const CoinIndexedVector * pi) const;
266 virtual void transposeTimes2(const ClpSimplex * model,
267 const CoinIndexedVector * pi1, CoinIndexedVector * dj1,
268 const CoinIndexedVector * pi2,
269 CoinIndexedVector * spare,
270 double referenceIn, double devex,
271 // Array for exact devex to say what is in reference framework
272 unsigned int * reference,
273 double * weights, double scaleFactor);
275 virtual void subsetTimes2(const ClpSimplex * model,
276 CoinIndexedVector * dj1,
277 const CoinIndexedVector * pi2, CoinIndexedVector * dj2,
278 double referenceIn, double devex,
279 // Array for exact devex to say what is in reference framework
280 unsigned int * reference,
281 double * weights, double scaleFactor);
283 void useEffectiveRhs(ClpSimplex * model);
284#if COIN_LONG_WORK
285 // For long double versions
286 virtual void times(CoinWorkDouble scalar,
287 const CoinWorkDouble * x, CoinWorkDouble * y) const ;
288 virtual void transposeTimes(CoinWorkDouble scalar,
289 const CoinWorkDouble * x, CoinWorkDouble * y) const ;
290#endif
292
296 inline CoinPackedMatrix * matrix() const {
297 return matrix_;
298 }
302 inline void setMatrixNull() {
303 matrix_ = NULL;
304 }
306 inline void makeSpecialColumnCopy() {
307 flags_ |= 16;
308 }
310 void releaseSpecialColumnCopy();
312 inline bool zeros() const {
313 return ((flags_ & 1) != 0);
314 }
316 inline bool wantsSpecialColumnCopy() const {
317 return ((flags_ & 16) != 0);
318 }
320 inline int flags() const {
321 return flags_;
322 }
324 inline void checkGaps() {
325 flags_ = (matrix_->hasGaps()) ? (flags_ | 2) : (flags_ & (~2));
326 }
328 inline int numberActiveColumns() const
329 { return numberActiveColumns_;}
331 inline void setNumberActiveColumns(int value)
332 { numberActiveColumns_ = value;}
334
335
339 ClpPackedMatrix();
341 virtual ~ClpPackedMatrix();
343
347 ClpPackedMatrix(const ClpPackedMatrix&);
349 ClpPackedMatrix(const CoinPackedMatrix&);
352 ClpPackedMatrix (const ClpPackedMatrix & wholeModel,
353 int numberRows, const int * whichRows,
354 int numberColumns, const int * whichColumns);
355 ClpPackedMatrix (const CoinPackedMatrix & wholeModel,
356 int numberRows, const int * whichRows,
357 int numberColumns, const int * whichColumns);
358
360 ClpPackedMatrix(CoinPackedMatrix * matrix);
361
362 ClpPackedMatrix& operator=(const ClpPackedMatrix&);
364 virtual ClpMatrixBase * clone() const ;
366 virtual void copy(const ClpPackedMatrix * from);
369 virtual ClpMatrixBase * subsetClone (
370 int numberRows, const int * whichRows,
371 int numberColumns, const int * whichColumns) const ;
373 void specialRowCopy(ClpSimplex * model, const ClpMatrixBase * rowCopy);
375 void specialColumnCopy(ClpSimplex * model);
377 virtual void correctSequence(const ClpSimplex * model, int & sequenceIn, int & sequenceOut) ;
379private:
381 int gutsOfTransposeTimesUnscaled(const double * COIN_RESTRICT pi,
382 int * COIN_RESTRICT index,
383 double * COIN_RESTRICT array,
384 const double tolerance) const;
386 int gutsOfTransposeTimesScaled(const double * COIN_RESTRICT pi,
387 const double * COIN_RESTRICT columnScale,
388 int * COIN_RESTRICT index,
389 double * COIN_RESTRICT array,
390 const double tolerance) const;
392 int gutsOfTransposeTimesUnscaled(const double * COIN_RESTRICT pi,
393 int * COIN_RESTRICT index,
394 double * COIN_RESTRICT array,
395 const unsigned char * status,
396 const double tolerance) const;
399 int gutsOfTransposeTimesUnscaled(const double * COIN_RESTRICT pi,
400 int * COIN_RESTRICT index,
401 double * COIN_RESTRICT array,
402 const unsigned char * status,
403 int * COIN_RESTRICT spareIndex,
404 double * COIN_RESTRICT spareArray,
405 const double * COIN_RESTRICT reducedCost,
406 double & upperTheta,
407 double & bestPossible,
408 double acceptablePivot,
409 double dualTolerance,
410 int & numberRemaining,
411 const double zeroTolerance) const;
413 int gutsOfTransposeTimesScaled(const double * COIN_RESTRICT pi,
414 const double * COIN_RESTRICT columnScale,
415 int * COIN_RESTRICT index,
416 double * COIN_RESTRICT array,
417 const unsigned char * status,
418 const double tolerance) const;
420 int gutsOfTransposeTimesByRowGEK(const CoinIndexedVector * COIN_RESTRICT piVector,
421 int * COIN_RESTRICT index,
422 double * COIN_RESTRICT output,
423 int numberColumns,
424 const double tolerance,
425 const double scalar) const;
427 int gutsOfTransposeTimesByRowGE3(const CoinIndexedVector * COIN_RESTRICT piVector,
428 int * COIN_RESTRICT index,
429 double * COIN_RESTRICT output,
430 double * COIN_RESTRICT array2,
431 const double tolerance,
432 const double scalar) const;
434 int gutsOfTransposeTimesByRowGE3a(const CoinIndexedVector * COIN_RESTRICT piVector,
435 int * COIN_RESTRICT index,
436 double * COIN_RESTRICT output,
437 int * COIN_RESTRICT lookup,
438 char * COIN_RESTRICT marked,
439 const double tolerance,
440 const double scalar) const;
442 void gutsOfTransposeTimesByRowEQ2(const CoinIndexedVector * piVector, CoinIndexedVector * output,
443 CoinIndexedVector * spareVector, const double tolerance, const double scalar) const;
445 void gutsOfTransposeTimesByRowEQ1(const CoinIndexedVector * piVector, CoinIndexedVector * output,
446 const double tolerance, const double scalar) const;
448 void clearCopies();
449
450
451protected:
453 void checkFlags(int type) const;
458 CoinPackedMatrix * matrix_;
460 int numberActiveColumns_;
468 mutable int flags_;
470 ClpPackedMatrix2 * rowCopy_;
472 ClpPackedMatrix3 * columnCopy_;
474};
475#ifdef THREAD
476#include <pthread.h>
477typedef struct {
478 double acceptablePivot;
479 const ClpSimplex * model;
480 double * spare;
481 int * spareIndex;
482 double * arrayTemp;
483 int * indexTemp;
484 int * numberInPtr;
485 double * bestPossiblePtr;
486 double * upperThetaPtr;
487 int * posFreePtr;
488 double * freePivotPtr;
489 int * numberOutPtr;
490 const unsigned short * count;
491 const double * pi;
492 const CoinBigIndex * rowStart;
493 const double * element;
494 const unsigned short * column;
495 int offset;
496 int numberInRowArray;
497 int numberLook;
498} dualColumn0Struct;
499#endif
500class ClpPackedMatrix2 {
501
502public:
508 void transposeTimes(const ClpSimplex * model,
509 const CoinPackedMatrix * rowCopy,
510 const CoinIndexedVector * x,
511 CoinIndexedVector * spareArray,
512 CoinIndexedVector * z) const;
514 inline bool usefulInfo() const {
515 return rowStart_ != NULL;
516 }
518
519
523 ClpPackedMatrix2();
525 ClpPackedMatrix2(ClpSimplex * model, const CoinPackedMatrix * rowCopy);
527 virtual ~ClpPackedMatrix2();
529
533 ClpPackedMatrix2(const ClpPackedMatrix2&);
534 ClpPackedMatrix2& operator=(const ClpPackedMatrix2&);
536
537
538protected:
543 int numberBlocks_;
545 int numberRows_;
547 int * offset_;
549 mutable unsigned short * count_;
551 mutable CoinBigIndex * rowStart_;
553 unsigned short * column_;
555 double * work_;
556#ifdef THREAD
557 pthread_t * threadId_;
558 dualColumn0Struct * info_;
559#endif
561};
562typedef struct {
563 CoinBigIndex startElements_; // point to data
564 int startIndices_; // point to column_
565 int numberInBlock_;
566 int numberPrice_; // at beginning
567 int numberElements_; // number elements per column
568} blockStruct;
569class ClpPackedMatrix3 {
570
571public:
577 void transposeTimes(const ClpSimplex * model,
578 const double * pi,
579 CoinIndexedVector * output) const;
581 void transposeTimes2(const ClpSimplex * model,
582 const double * pi, CoinIndexedVector * dj1,
583 const double * piWeight,
584 double referenceIn, double devex,
585 // Array for exact devex to say what is in reference framework
586 unsigned int * reference,
587 double * weights, double scaleFactor);
589
590
594 ClpPackedMatrix3();
596 ClpPackedMatrix3(ClpSimplex * model, const CoinPackedMatrix * columnCopy);
598 virtual ~ClpPackedMatrix3();
600
604 ClpPackedMatrix3(const ClpPackedMatrix3&);
605 ClpPackedMatrix3& operator=(const ClpPackedMatrix3&);
607
610 void sortBlocks(const ClpSimplex * model);
612 void swapOne(const ClpSimplex * model, const ClpPackedMatrix * matrix,
613 int iColumn);
615
616
617protected:
622 int numberBlocks_;
624 int numberColumns_;
626 int * column_;
628 CoinBigIndex * start_;
630 int * row_;
632 double * element_;
634 blockStruct * block_;
636};
637
638#endif
COIN_RESTRICT
#define COIN_RESTRICT
Definition: ClpMatrixBase.hpp:21
ClpMatrixBase
Abstract base class for Clp Matrices.
Definition: ClpMatrixBase.hpp:38
ClpMatrixBase::reducedCost
double reducedCost(ClpSimplex *model, int sequence) const
Returns reduced cost of a variable.
ClpMatrixBase::type
int type() const
Returns type.
Definition: ClpMatrixBase.hpp:370
ClpPackedMatrix2::ClpPackedMatrix2
ClpPackedMatrix2(ClpSimplex *model, const CoinPackedMatrix *rowCopy)
Constructor from copy.
ClpPackedMatrix2::work_
double * work_
work arrays
Definition: ClpPackedMatrix.hpp:555
ClpPackedMatrix2::operator=
ClpPackedMatrix2 & operator=(const ClpPackedMatrix2 &)
ClpPackedMatrix2::ClpPackedMatrix2
ClpPackedMatrix2()
Default constructor.
ClpPackedMatrix2::ClpPackedMatrix2
ClpPackedMatrix2(const ClpPackedMatrix2 &)
The copy constructor.
ClpPackedMatrix2::numberBlocks_
int numberBlocks_
Number of blocks.
Definition: ClpPackedMatrix.hpp:543
ClpPackedMatrix2::transposeTimes
void transposeTimes(const ClpSimplex *model, const CoinPackedMatrix *rowCopy, const CoinIndexedVector *x, CoinIndexedVector *spareArray, CoinIndexedVector *z) const
Return x * -1 * A in z.
ClpPackedMatrix2::~ClpPackedMatrix2
virtual ~ClpPackedMatrix2()
Destructor.
ClpPackedMatrix2::count_
unsigned short * count_
Counts of elements in each part of row.
Definition: ClpPackedMatrix.hpp:549
ClpPackedMatrix2::numberRows_
int numberRows_
Number of rows.
Definition: ClpPackedMatrix.hpp:545
ClpPackedMatrix2::offset_
int * offset_
Column offset for each block (plus one at end)
Definition: ClpPackedMatrix.hpp:547
ClpPackedMatrix2::column_
unsigned short * column_
columns within block
Definition: ClpPackedMatrix.hpp:553
ClpPackedMatrix2::rowStart_
CoinBigIndex * rowStart_
Row starts.
Definition: ClpPackedMatrix.hpp:551
ClpPackedMatrix2::usefulInfo
bool usefulInfo() const
Returns true if copy has useful information.
Definition: ClpPackedMatrix.hpp:514
ClpPackedMatrix3::operator=
ClpPackedMatrix3 & operator=(const ClpPackedMatrix3 &)
ClpPackedMatrix3::element_
double * element_
Elements.
Definition: ClpPackedMatrix.hpp:632
ClpPackedMatrix3::ClpPackedMatrix3
ClpPackedMatrix3(const ClpPackedMatrix3 &)
The copy constructor.
ClpPackedMatrix3::sortBlocks
void sortBlocks(const ClpSimplex *model)
Sort blocks.
ClpPackedMatrix3::ClpPackedMatrix3
ClpPackedMatrix3()
Default constructor.
ClpPackedMatrix3::block_
blockStruct * block_
Blocks (ordinary start at 0 and go to first block)
Definition: ClpPackedMatrix.hpp:634
ClpPackedMatrix3::ClpPackedMatrix3
ClpPackedMatrix3(ClpSimplex *model, const CoinPackedMatrix *columnCopy)
Constructor from copy.
ClpPackedMatrix3::column_
int * column_
Column indices and reverse lookup (within block)
Definition: ClpPackedMatrix.hpp:626
ClpPackedMatrix3::swapOne
void swapOne(const ClpSimplex *model, const ClpPackedMatrix *matrix, int iColumn)
Swap one variable.
ClpPackedMatrix3::numberBlocks_
int numberBlocks_
Number of blocks.
Definition: ClpPackedMatrix.hpp:622
ClpPackedMatrix3::transposeTimes
void transposeTimes(const ClpSimplex *model, const double *pi, CoinIndexedVector *output) const
Return x * -1 * A in z.
ClpPackedMatrix3::numberColumns_
int numberColumns_
Number of columns.
Definition: ClpPackedMatrix.hpp:624
ClpPackedMatrix3::start_
CoinBigIndex * start_
Starts for odd/long vectors.
Definition: ClpPackedMatrix.hpp:628
ClpPackedMatrix3::~ClpPackedMatrix3
virtual ~ClpPackedMatrix3()
Destructor.
ClpPackedMatrix3::transposeTimes2
void transposeTimes2(const ClpSimplex *model, const double *pi, CoinIndexedVector *dj1, const double *piWeight, double referenceIn, double devex, unsigned int *reference, double *weights, double scaleFactor)
Updates two arrays for steepest.
ClpPackedMatrix::~ClpPackedMatrix
virtual ~ClpPackedMatrix()
Destructor.
ClpPackedMatrix::useEffectiveRhs
void useEffectiveRhs(ClpSimplex *model)
Sets up an effective RHS.
ClpPackedMatrix::clone
virtual ClpMatrixBase * clone() const
Clone.
ClpPackedMatrix::checkFlags
void checkFlags(int type) const
Check validity.
ClpPackedMatrix::getMutableElements
double * getMutableElements() const
Mutable elements.
Definition: ClpPackedMatrix.hpp:55
ClpPackedMatrix::ClpPackedMatrix
ClpPackedMatrix(const CoinPackedMatrix &)
The copy constructor from an CoinPackedMatrix.
ClpPackedMatrix::getNumElements
virtual CoinBigIndex getNumElements() const
Number of entries in the packed matrix.
Definition: ClpPackedMatrix.hpp:35
ClpPackedMatrix::canDoPartialPricing
virtual bool canDoPartialPricing() const
Says whether it can do partial pricing.
ClpPackedMatrix::appendCols
virtual void appendCols(int number, const CoinPackedVectorBase *const *columns)
Append Columns.
ClpPackedMatrix::appendRows
virtual void appendRows(int number, const CoinPackedVectorBase *const *rows)
Append Rows.
ClpPackedMatrix::checkGaps
void checkGaps()
Sets flags_ correctly.
Definition: ClpPackedMatrix.hpp:324
ClpPackedMatrix::reallyScale
virtual void reallyScale(const double *rowScale, const double *columnScale)
ClpPackedMatrix::wantsSpecialColumnCopy
bool wantsSpecialColumnCopy() const
Do we want special column copy.
Definition: ClpPackedMatrix.hpp:316
ClpPackedMatrix::allElementsInRange
virtual bool allElementsInRange(ClpModel *model, double smallest, double largest, int check=15)
Checks if all elements are in valid range.
ClpPackedMatrix::zeros
bool zeros() const
Are there zeros?
Definition: ClpPackedMatrix.hpp:312
ClpPackedMatrix::isColOrdered
virtual bool isColOrdered() const
Whether the packed matrix is column major ordered or not.
Definition: ClpPackedMatrix.hpp:31
ClpPackedMatrix::releaseSpecialColumnCopy
void releaseSpecialColumnCopy()
Say we don't want special column copy.
ClpPackedMatrix::getVectorLength
virtual int getVectorLength(int index) const
The length of a single major-dimension vector.
Definition: ClpPackedMatrix.hpp:75
ClpPackedMatrix::replaceVector
virtual void replaceVector(const int index, const int numReplace, const double *newElements)
Replace the elements of a vector.
Definition: ClpPackedMatrix.hpp:100
ClpPackedMatrix::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.
ClpPackedMatrix::ClpPackedMatrix
ClpPackedMatrix(const ClpPackedMatrix &)
The copy constructor.
ClpPackedMatrix::setNumberActiveColumns
void setNumberActiveColumns(int value)
Set number of active columns (normally same as number of columns)
Definition: ClpPackedMatrix.hpp:331
ClpPackedMatrix::setMatrixNull
void setMatrixNull()
Just sets matrix_ to NULL so it can be used elsewhere.
Definition: ClpPackedMatrix.hpp:302
ClpPackedMatrix::releasePackedMatrix
virtual void releasePackedMatrix() const
Allow any parts of a created CoinPackedMatrix to be deleted.
Definition: ClpPackedMatrix.hpp:173
ClpPackedMatrix::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.
ClpPackedMatrix::times
virtual void times(double scalar, const double *x, double *y) const
Return y + A * scalar *x in y.
ClpPackedMatrix::copy
virtual void copy(const ClpPackedMatrix *from)
Copy contents - resizing if necessary - otherwise re-use memory.
ClpPackedMatrix::ClpPackedMatrix
ClpPackedMatrix()
Default constructor.
ClpPackedMatrix::ClpPackedMatrix
ClpPackedMatrix(const CoinPackedMatrix &wholeModel, int numberRows, const int *whichRows, int numberColumns, const int *whichColumns)
ClpPackedMatrix::canCombine
virtual bool canCombine(const ClpSimplex *model, const CoinIndexedVector *pi) const
Returns true if can combine transposeTimes and subsetTransposeTimes and if it would be faster.
ClpPackedMatrix::transposeTimes2
virtual void transposeTimes2(const ClpSimplex *model, const CoinIndexedVector *pi1, CoinIndexedVector *dj1, const CoinIndexedVector *pi2, CoinIndexedVector *spare, double referenceIn, double devex, unsigned int *reference, double *weights, double scaleFactor)
Updates two arrays for steepest.
ClpPackedMatrix::scaleRowCopy
virtual void scaleRowCopy(ClpModel *model) const
Scales rowCopy if column copy scaled Only called if scales already exist.
ClpPackedMatrix::flags_
int flags_
Flags - 1 - has zero elements 2 - has gaps 4 - has special row copy 8 - has special column copy 16 - ...
Definition: ClpPackedMatrix.hpp:468
ClpPackedMatrix::subsetClone
virtual ClpMatrixBase * subsetClone(int numberRows, const int *whichRows, int numberColumns, const int *whichColumns) const
Subset clone (without gaps).
ClpPackedMatrix::partialPricing
virtual void partialPricing(ClpSimplex *model, double start, double end, int &bestSequence, int &numberWanted)
Partial pricing.
ClpPackedMatrix::unpack
virtual void unpack(const ClpSimplex *model, CoinIndexedVector *rowArray, int column) const
Unpacks a column into an CoinIndexedvector.
ClpPackedMatrix::getPackedMatrix
virtual CoinPackedMatrix * getPackedMatrix() const
Return a complete CoinPackedMatrix.
Definition: ClpPackedMatrix.hpp:27
ClpPackedMatrix::refresh
virtual int refresh(ClpSimplex *model)
makes sure active columns correct
ClpPackedMatrix::transposeTimesByColumn
void transposeTimesByColumn(const ClpSimplex *model, double scalar, const CoinIndexedVector *x, CoinIndexedVector *y, CoinIndexedVector *z) const
Return x * scalar * A + y in z.
ClpPackedMatrix::deleteCols
virtual void deleteCols(const int numDel, const int *indDel)
Delete the columns whose indices are listed in indDel.
ClpPackedMatrix::transposeTimes
virtual void transposeTimes(double scalar, const double *x, double *y, const double *rowScale, const double *columnScale, double *spare=NULL) const
And for scaling.
ClpPackedMatrix::correctSequence
virtual void correctSequence(const ClpSimplex *model, int &sequenceIn, int &sequenceOut)
Correct sequence in and out to give true value.
ClpPackedMatrix::makeSpecialColumnCopy
void makeSpecialColumnCopy()
Say we want special column copy.
Definition: ClpPackedMatrix.hpp:306
ClpPackedMatrix::specialColumnCopy
void specialColumnCopy(ClpSimplex *model)
make special column copy
ClpPackedMatrix::columnCopy_
ClpPackedMatrix3 * columnCopy_
Special column copy.
Definition: ClpPackedMatrix.hpp:472
ClpPackedMatrix::modifyCoefficient
virtual void modifyCoefficient(int row, int column, double newElement, bool keepZero=false)
Modify one element of packed matrix.
Definition: ClpPackedMatrix.hpp:107
ClpPackedMatrix::unpackPacked
virtual void unpackPacked(ClpSimplex *model, CoinIndexedVector *rowArray, int column) const
Unpacks a column into an CoinIndexedvector in packed foramt Note that model is NOT const.
ClpPackedMatrix::rangeOfElements
virtual void rangeOfElements(double &smallestNegative, double &largestNegative, double &smallestPositive, double &largestPositive)
Returns largest and smallest elements of both signs.
ClpPackedMatrix::numberActiveColumns_
int numberActiveColumns_
number of active columns (normally same as number of columns)
Definition: ClpPackedMatrix.hpp:460
ClpPackedMatrix::transposeTimesSubset
void transposeTimesSubset(int number, const int *which, const double *pi, double *y, const double *rowScale, const double *columnScale, double *spare=NULL) const
Return y - pi * A in y.
ClpPackedMatrix::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.
ClpPackedMatrix::numberActiveColumns
int numberActiveColumns() const
number of active columns (normally same as number of columns)
Definition: ClpPackedMatrix.hpp:328
ClpPackedMatrix::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).
ClpPackedMatrix::getVectorStarts
virtual const CoinBigIndex * getVectorStarts() const
Definition: ClpPackedMatrix.hpp:67
ClpPackedMatrix::transposeTimes
virtual void transposeTimes(double scalar, const double *x, double *y) const
Return y + x * scalar * A in y.
ClpPackedMatrix::matrix
CoinPackedMatrix * matrix() const
Returns CoinPackedMatrix (non const)
Definition: ClpPackedMatrix.hpp:296
ClpPackedMatrix::add
virtual void add(const ClpSimplex *model, double *array, int column, double multiplier) const
Adds multiple of a column into an array.
ClpPackedMatrix::getNumRows
virtual int getNumRows() const
Number of rows.
Definition: ClpPackedMatrix.hpp:43
ClpPackedMatrix::scaledColumnCopy
virtual ClpMatrixBase * scaledColumnCopy(ClpModel *model) const
Realy really scales column copy Only called if scales already exist.
ClpPackedMatrix::transposeTimesByRow
virtual void transposeTimesByRow(const ClpSimplex *model, double scalar, const CoinIndexedVector *x, CoinIndexedVector *y, CoinIndexedVector *z) const
Return x * scalar * A + y in z.
ClpPackedMatrix::ClpPackedMatrix
ClpPackedMatrix(CoinPackedMatrix *matrix)
This takes over ownership (for space reasons)
ClpPackedMatrix::countBasis
virtual CoinBigIndex countBasis(const int *whichColumn, int &numberColumnBasic)
Returns number of elements in column part of basis.
ClpPackedMatrix::matrix_
CoinPackedMatrix * matrix_
Data.
Definition: ClpPackedMatrix.hpp:458
ClpPackedMatrix::reverseOrderedCopy
virtual ClpMatrixBase * reverseOrderedCopy() const
Returns a new matrix in reverse order without gaps.
ClpPackedMatrix::getVectorLengths
virtual const int * getVectorLengths() const
The lengths of the major-dimension vectors.
Definition: ClpPackedMatrix.hpp:71
ClpPackedMatrix::getElements
virtual const double * getElements() const
A vector containing the elements in the packed matrix.
Definition: ClpPackedMatrix.hpp:51
ClpPackedMatrix::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.
ClpPackedMatrix::specialRowCopy
void specialRowCopy(ClpSimplex *model, const ClpMatrixBase *rowCopy)
make special row copy
ClpPackedMatrix::operator=
ClpPackedMatrix & operator=(const ClpPackedMatrix &)
ClpPackedMatrix::flags
int flags() const
Flags.
Definition: ClpPackedMatrix.hpp:320
ClpPackedMatrix::setDimensions
virtual void setDimensions(int numrows, int numcols)
Set the dimensions of the matrix.
ClpPackedMatrix::scale
virtual int scale(ClpModel *model, const ClpSimplex *baseModel=NULL) const
Creates scales for column copy (rowCopy in model may be modified) returns non-zero if no scaling done...
ClpPackedMatrix::subsetTimes2
virtual void subsetTimes2(const ClpSimplex *model, CoinIndexedVector *dj1, const CoinIndexedVector *pi2, CoinIndexedVector *dj2, double referenceIn, double devex, unsigned int *reference, double *weights, double scaleFactor)
Updates second array for steepest and does devex weights.
ClpPackedMatrix::rowCopy_
ClpPackedMatrix2 * rowCopy_
Special row copy.
Definition: ClpPackedMatrix.hpp:470
ClpPackedMatrix::createScaledMatrix
void createScaledMatrix(ClpSimplex *model) const
Creates scaled column copy if scales exist.
ClpPackedMatrix::transposeTimes
virtual void transposeTimes(const ClpSimplex *model, double scalar, const CoinIndexedVector *x, CoinIndexedVector *y, CoinIndexedVector *z) const
Return x * scalar * A + y in z.
ClpPackedMatrix::getNumCols
virtual int getNumCols() const
Number of columns.
Definition: ClpPackedMatrix.hpp:39
ClpPackedMatrix::deleteRows
virtual void deleteRows(const int numDel, const int *indDel)
Delete the rows whose indices are listed in indDel.
ClpPackedMatrix::times
virtual void times(double scalar, const double *x, double *y, const double *rowScale, const double *columnScale) const
And for scaling.
ClpPackedMatrix::ClpPackedMatrix
ClpPackedMatrix(const ClpPackedMatrix &wholeModel, int numberRows, const int *whichRows, int numberColumns, const int *whichColumns)
Subset constructor (without gaps).
ClpPackedMatrix::getIndices
virtual const int * getIndices() const
A vector containing the minor indices of the elements in the packed matrix.
Definition: ClpPackedMatrix.hpp:63
ClpSimplex
This solves LPs using the simplex method.
Definition: ClpSimplex.hpp:70
blockStruct::startElements_
CoinBigIndex startElements_
Definition: ClpPackedMatrix.hpp:563
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