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ClpGubDynamicMatrix Class Reference

This implements Gub rows plus a ClpPackedMatrix. More...

#include <ClpGubDynamicMatrix.hpp>

+ Inheritance diagram for ClpGubDynamicMatrix:
+ Collaboration diagram for ClpGubDynamicMatrix:

Public Member Functions

Main functions provided
virtual void partialPricing (ClpSimplex *model, double start, double end, int &bestSequence, int &numberWanted)
 Partial pricing. More...
 
virtual int synchronize (ClpSimplex *model, int mode)
 This is local to Gub to allow synchronization: mode=0 when status of basis is good mode=1 when variable is flagged mode=2 when all variables unflagged (returns number flagged) mode=3 just reset costs (primal) mode=4 correct number of dual infeasibilities mode=5 return 4 if time to re-factorize mode=8 - make sure set is clean mode=9 - adjust lower, upper on set by incoming. More...
 
virtual void useEffectiveRhs (ClpSimplex *model, bool cheapest=true)
 Sets up an effective RHS and does gub crash if needed. More...
 
virtual int updatePivot (ClpSimplex *model, double oldInValue, double oldOutValue)
 update information for a pivot (and effective rhs) More...
 
void insertNonBasic (int sequence, int iSet)
 Add a new variable to a set. More...
 
virtual double * rhsOffset (ClpSimplex *model, bool forceRefresh=false, bool check=false)
 Returns effective RHS offset if it is being used. More...
 
virtual void times (double scalar, const double *x, double *y) const
 Return y + A * scalar *x in y. More...
 
virtual int checkFeasible (ClpSimplex *model, double &sum) const
 Just for debug Returns sum and number of primal infeasibilities. More...
 
void cleanData (ClpSimplex *model)
 Cleans data after setWarmStart. More...
 
Constructors, destructor
 ClpGubDynamicMatrix ()
 Default constructor. More...
 
virtual ~ClpGubDynamicMatrix ()
 Destructor. More...
 
Copy method
 ClpGubDynamicMatrix (const ClpGubDynamicMatrix &)
 The copy constructor. More...
 
 ClpGubDynamicMatrix (ClpSimplex *model, int numberSets, int numberColumns, const int *starts, const double *lower, const double *upper, const int *startColumn, const int *row, const double *element, const double *cost, const double *lowerColumn=NULL, const double *upperColumn=NULL, const unsigned char *status=NULL)
 This is the real constructor. More...
 
ClpGubDynamicMatrixoperator= (const ClpGubDynamicMatrix &)
 
virtual ClpMatrixBaseclone () const
 Clone. More...
 
- Public Member Functions inherited from ClpGubMatrix
virtual ClpMatrixBasereverseOrderedCopy () const
 Returns a new matrix in reverse order without gaps (GUB wants NULL) More...
 
virtual CoinBigIndex countBasis (const int *whichColumn, int &numberColumnBasic)
 Returns number of elements in column part of basis. More...
 
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. More...
 
virtual void unpack (const ClpSimplex *model, CoinIndexedVector *rowArray, int column) const
 Unpacks a column into an CoinIndexedvector. More...
 
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. More...
 
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. More...
 
virtual void add (const ClpSimplex *model, double *array, int column, double multiplier) const
 Adds multiple of a column into an array. More...
 
virtual int hiddenRows () const
 Returns number of hidden rows e.g. gub. More...
 
virtual void transposeTimes (const ClpSimplex *model, double scalar, const CoinIndexedVector *x, CoinIndexedVector *y, CoinIndexedVector *z) const
 Return x * scalar * A + y in z. More...
 
virtual void transposeTimesByRow (const ClpSimplex *model, double scalar, const CoinIndexedVector *x, CoinIndexedVector *y, CoinIndexedVector *z) const
 Return x * scalar * A + y in z. More...
 
virtual void subsetTransposeTimes (const ClpSimplex *model, const CoinIndexedVector *x, const CoinIndexedVector *y, CoinIndexedVector *z) const
 
Return <code>x *A</code> in <code>z</code> but

just for indices in y. More...

 
virtual int extendUpdated (ClpSimplex *model, CoinIndexedVector *update, int mode)
 expands an updated column to allow for extra rows which the main solver does not know about and returns number added if mode 0. More...
 
virtual void primalExpanded (ClpSimplex *model, int mode)
 mode=0 - Set up before "update" and "times" for primal solution using extended rows mode=1 - Cleanup primal solution after "times" using extended rows. More...
 
virtual void dualExpanded (ClpSimplex *model, CoinIndexedVector *array, double *other, int mode)
 mode=0 - Set up before "updateTranspose" and "transposeTimes" for duals using extended updates array (and may use other if dual values pass) mode=1 - Update dual solution after "transposeTimes" using extended rows. More...
 
virtual int generalExpanded (ClpSimplex *model, int mode, int &number)
 mode=0 - Create list of non-key basics in pivotVariable_ using number as numberBasic in and out mode=1 - Set all key variables as basic mode=2 - return number extra rows needed, number gives maximum number basic mode=3 - before replaceColumn mode=4 - return 1 if can do primal, 2 if dual, 3 if both mode=5 - save any status stuff (when in good state) mode=6 - restore status stuff mode=7 - flag given variable (normally sequenceIn) mode=8 - unflag all variables mode=9 - synchronize costs mode=10 - return 1 if there may be changing bounds on variable (column generation) mode=11 - make sure set is clean (used when a variable rejected - but not flagged) mode=12 - after factorize but before permute stuff mode=13 - at end of simplex to delete stuff More...
 
virtual void correctSequence (const ClpSimplex *model, int &sequenceIn, int &sequenceOut)
 Correct sequence in and out to give true value. More...
 
 ClpGubMatrix ()
 Default constructor. More...
 
virtual ~ClpGubMatrix ()
 Destructor. More...
 
 ClpGubMatrix (const ClpGubMatrix &)
 The copy constructor. More...
 
 ClpGubMatrix (const CoinPackedMatrix &)
 The copy constructor from an CoinPackedMatrix. More...
 
 ClpGubMatrix (const ClpGubMatrix &wholeModel, int numberRows, const int *whichRows, int numberColumns, const int *whichColumns)
 Subset constructor (without gaps). More...
 
 ClpGubMatrix (const CoinPackedMatrix &wholeModel, int numberRows, const int *whichRows, int numberColumns, const int *whichColumns)
 
 ClpGubMatrix (CoinPackedMatrix *matrix)
 This takes over ownership (for space reasons) More...
 
 ClpGubMatrix (ClpPackedMatrix *matrix, int numberSets, const int *start, const int *end, const double *lower, const double *upper, const unsigned char *status=NULL)
 This takes over ownership (for space reasons) and is the real constructor. More...
 
ClpGubMatrixoperator= (const ClpGubMatrix &)
 
virtual ClpMatrixBasesubsetClone (int numberRows, const int *whichRows, int numberColumns, const int *whichColumns) const
 Subset clone (without gaps). More...
 
void redoSet (ClpSimplex *model, int newKey, int oldKey, int iSet)
 redoes next_ for a set. More...
 
ClpSimplex::Status getStatus (int sequence) const
 Status. More...
 
void setStatus (int sequence, ClpSimplex::Status status)
 
void setFlagged (int sequence)
 To flag a variable. More...
 
void clearFlagged (int sequence)
 
bool flagged (int sequence) const
 
void setAbove (int sequence)
 To say key is above ub. More...
 
void setFeasible (int sequence)
 To say key is feasible. More...
 
void setBelow (int sequence)
 To say key is below lb. More...
 
double weight (int sequence) const
 
int * start () const
 Starts. More...
 
int * end () const
 End. More...
 
double * lower () const
 Lower bounds on sets. More...
 
double * upper () const
 Upper bounds on sets. More...
 
int * keyVariable () const
 Key variable of set. More...
 
int * backward () const
 Backward pointer to set number. More...
 
int numberSets () const
 Number of sets (gub rows) More...
 
void switchOffCheck ()
 Switches off dj checking each factorization (for BIG models) More...
 
- Public Member Functions inherited from ClpPackedMatrix
virtual CoinPackedMatrixgetPackedMatrix () const
 Return a complete CoinPackedMatrix. More...
 
virtual bool isColOrdered () const
 Whether the packed matrix is column major ordered or not. More...
 
virtual CoinBigIndex getNumElements () const
 Number of entries in the packed matrix. More...
 
virtual int getNumCols () const
 Number of columns. More...
 
virtual int getNumRows () const
 Number of rows. More...
 
virtual const double * getElements () const
 A vector containing the elements in the packed matrix. More...
 
double * getMutableElements () const
 Mutable elements. More...
 
virtual const int * getIndices () const
 A vector containing the minor indices of the elements in the packed matrix. More...
 
virtual const CoinBigIndexgetVectorStarts () const
 
virtual const int * getVectorLengths () const
 The lengths of the major-dimension vectors. More...
 
virtual int getVectorLength (int index) const
 The length of a single major-dimension vector. More...
 
virtual void deleteCols (const int numDel, const int *indDel)
 Delete the columns whose indices are listed in indDel. More...
 
virtual void deleteRows (const int numDel, const int *indDel)
 Delete the rows whose indices are listed in indDel. More...
 
virtual void appendCols (int number, const CoinPackedVectorBase *const *columns)
 Append Columns. More...
 
virtual void appendRows (int number, const CoinPackedVectorBase *const *rows)
 Append Rows. More...
 
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. More...
 
virtual void replaceVector (const int index, const int numReplace, const double *newElements)
 Replace the elements of a vector. More...
 
virtual void modifyCoefficient (int row, int column, double newElement, bool keepZero=false)
 Modify one element of packed matrix. More...
 
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. More...
 
virtual void scaleRowCopy (ClpModel *model) const
 Scales rowCopy if column copy scaled Only called if scales already exist. More...
 
void createScaledMatrix (ClpSimplex *model) const
 Creates scaled column copy if scales exist. More...
 
virtual ClpMatrixBasescaledColumnCopy (ClpModel *model) const
 Realy really scales column copy Only called if scales already exist. More...
 
virtual bool allElementsInRange (ClpModel *model, double smallest, double largest, int check=15)
 Checks if all elements are in valid range. More...
 
virtual void rangeOfElements (double &smallestNegative, double &largestNegative, double &smallestPositive, double &largestPositive)
 Returns largest and smallest elements of both signs. More...
 
virtual void releasePackedMatrix () const
 Allow any parts of a created CoinPackedMatrix to be deleted. More...
 
virtual CoinBigIndexdubiousWeights (const ClpSimplex *model, int *inputWeights) const
 Given positive integer weights for each row fills in sum of weights for each column (and slack). More...
 
virtual bool canDoPartialPricing () const
 Says whether it can do partial pricing. More...
 
virtual int refresh (ClpSimplex *model)
 makes sure active columns correct More...
 
virtual void reallyScale (const double *rowScale, const double *columnScale)
 
virtual void setDimensions (int numrows, int numcols)
 Set the dimensions of the matrix. More...
 
virtual void times (double scalar, const double *x, double *y, const double *rowScale, const double *columnScale) const
 And for scaling. More...
 
virtual void transposeTimes (double scalar, const double *x, double *y) const
 Return y + x * scalar * A in y. More...
 
virtual void transposeTimes (double scalar, const double *x, double *y, const double *rowScale, const double *columnScale, double *spare=NULL) const
 And for scaling. More...
 
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. More...
 
void transposeTimesByColumn (const ClpSimplex *model, double scalar, const CoinIndexedVector *x, CoinIndexedVector *y, CoinIndexedVector *z) const
 Return x * scalar * A + y in z. More...
 
virtual bool canCombine (const ClpSimplex *model, const CoinIndexedVector *pi) const
 Returns true if can combine transposeTimes and subsetTransposeTimes and if it would be faster. More...
 
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. More...
 
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. More...
 
void useEffectiveRhs (ClpSimplex *model)
 Sets up an effective RHS. More...
 
CoinPackedMatrixmatrix () const
 Returns CoinPackedMatrix (non const) More...
 
void setMatrixNull ()
 Just sets matrix_ to NULL so it can be used elsewhere. More...
 
void makeSpecialColumnCopy ()
 Say we want special column copy. More...
 
void releaseSpecialColumnCopy ()
 Say we don't want special column copy. More...
 
bool zeros () const
 Are there zeros? More...
 
bool wantsSpecialColumnCopy () const
 Do we want special column copy. More...
 
int flags () const
 Flags. More...
 
void checkGaps ()
 Sets flags_ correctly. More...
 
int numberActiveColumns () const
 number of active columns (normally same as number of columns) More...
 
void setNumberActiveColumns (int value)
 Set number of active columns (normally same as number of columns) More...
 
 ClpPackedMatrix ()
 Default constructor. More...
 
virtual ~ClpPackedMatrix ()
 Destructor. More...
 
 ClpPackedMatrix (const ClpPackedMatrix &)
 The copy constructor. More...
 
 ClpPackedMatrix (const CoinPackedMatrix &)
 The copy constructor from an CoinPackedMatrix. More...
 
 ClpPackedMatrix (const ClpPackedMatrix &wholeModel, int numberRows, const int *whichRows, int numberColumns, const int *whichColumns)
 Subset constructor (without gaps). More...
 
 ClpPackedMatrix (const CoinPackedMatrix &wholeModel, int numberRows, const int *whichRows, int numberColumns, const int *whichColumns)
 
 ClpPackedMatrix (CoinPackedMatrix *matrix)
 This takes over ownership (for space reasons) More...
 
ClpPackedMatrixoperator= (const ClpPackedMatrix &)
 
virtual void copy (const ClpPackedMatrix *from)
 Copy contents - resizing if necessary - otherwise re-use memory. More...
 
void specialRowCopy (ClpSimplex *model, const ClpMatrixBase *rowCopy)
 make special row copy More...
 
void specialColumnCopy (ClpSimplex *model)
 make special column copy More...
 
- Public Member Functions inherited from ClpMatrixBase
virtual bool canGetRowCopy () const
 Returns true if can create row copy. More...
 
virtual void createVariable (ClpSimplex *model, int &bestSequence)
 Creates a variable. More...
 
double reducedCost (ClpSimplex *model, int sequence) const
 Returns reduced cost of a variable. More...
 
virtual void times (double scalar, const double *COIN_RESTRICT x, double *COIN_RESTRICT y) const =0
 Return y + A * x * scalar in y. More...
 
virtual void times (double scalar, const double *COIN_RESTRICT x, double *COIN_RESTRICT y, const double *COIN_RESTRICT rowScale, const double *COIN_RESTRICT columnScale) const
 And for scaling - default aborts for when scaling not supported (unless pointers NULL when as normal) More...
 
virtual void transposeTimes (double scalar, const double *COIN_RESTRICT x, double *COIN_RESTRICT y) const =0
 Return y + x * scalar * A in y. More...
 
virtual void transposeTimes (double scalar, const double *COIN_RESTRICT x, double *COIN_RESTRICT y, const double *COIN_RESTRICT rowScale, const double *COIN_RESTRICT columnScale, double *COIN_RESTRICT spare=NULL) const
 And for scaling - default aborts for when scaling not supported (unless pointers NULL when as normal) More...
 
virtual void listTransposeTimes (const ClpSimplex *model, double *x, int *y, int number, double *z) const
 Return x *A in z but just for number indices in y. More...
 
virtual void backToBasics ()
 Gets rid of any mutable by products. More...
 
int type () const
 Returns type. More...
 
void setType (int newtype)
 Sets type. More...
 
void useEffectiveRhs (ClpSimplex *model)
 Sets up an effective RHS. More...
 
int lastRefresh () const
 If rhsOffset used this is iteration last refreshed. More...
 
int refreshFrequency () const
 If rhsOffset used this is refresh frequency (0==off) More...
 
void setRefreshFrequency (int value)
 
bool skipDualCheck () const
 whether to skip dual checks most of time More...
 
void setSkipDualCheck (bool yes)
 
int minimumObjectsScan () const
 Partial pricing tuning parameter - minimum number of "objects" to scan. More...
 
void setMinimumObjectsScan (int value)
 
int minimumGoodReducedCosts () const
 Partial pricing tuning parameter - minimum number of negative reduced costs to get. More...
 
void setMinimumGoodReducedCosts (int value)
 
double startFraction () const
 Current start of search space in matrix (as fraction) More...
 
void setStartFraction (double value)
 
double endFraction () const
 Current end of search space in matrix (as fraction) More...
 
void setEndFraction (double value)
 
double savedBestDj () const
 Current best reduced cost. More...
 
void setSavedBestDj (double value)
 
int originalWanted () const
 Initial number of negative reduced costs wanted. More...
 
void setOriginalWanted (int value)
 
int currentWanted () const
 Current number of negative reduced costs which we still need. More...
 
void setCurrentWanted (int value)
 
int savedBestSequence () const
 Current best sequence. More...
 
void setSavedBestSequence (int value)
 
virtual ~ClpMatrixBase ()
 Destructor (has to be public) More...
 

Protected Attributes

Data members

The data members are protected to allow access for derived classes.

double objectiveOffset_
 Saved value of objective offset. More...
 
CoinBigIndexstartColumn_
 Starts of each column. More...
 
int * row_
 rows More...
 
double * element_
 elements More...
 
double * cost_
 costs More...
 
int * fullStart_
 full starts More...
 
int * id_
 ids of active columns (just index here) More...
 
unsigned char * dynamicStatus_
 for status and which bound More...
 
double * lowerColumn_
 Optional lower bounds on columns. More...
 
double * upperColumn_
 Optional upper bounds on columns. More...
 
double * lowerSet_
 Optional true lower bounds on sets. More...
 
double * upperSet_
 Optional true upper bounds on sets. More...
 
int numberGubColumns_
 size More...
 
int firstAvailable_
 first free More...
 
int savedFirstAvailable_
 saved first free More...
 
int firstDynamic_
 first dynamic More...
 
int lastDynamic_
 number of columns in dynamic model More...
 
int numberElements_
 size of working matrix (max) More...
 
- Protected Attributes inherited from ClpGubMatrix
double sumDualInfeasibilities_
 Sum of dual infeasibilities. More...
 
double sumPrimalInfeasibilities_
 Sum of primal infeasibilities. More...
 
double sumOfRelaxedDualInfeasibilities_
 Sum of Dual infeasibilities using tolerance based on error in duals. More...
 
double sumOfRelaxedPrimalInfeasibilities_
 Sum of Primal infeasibilities using tolerance based on error in primals. More...
 
double infeasibilityWeight_
 Infeasibility weight when last full pass done. More...
 
int * start_
 Starts. More...
 
int * end_
 End. More...
 
double * lower_
 Lower bounds on sets. More...
 
double * upper_
 Upper bounds on sets. More...
 
unsigned char * status_
 Status of slacks. More...
 
unsigned char * saveStatus_
 Saved status of slacks. More...
 
int * savedKeyVariable_
 Saved key variables. More...
 
int * backward_
 Backward pointer to set number. More...
 
int * backToPivotRow_
 Backward pointer to pivot row !!! More...
 
double * changeCost_
 Change in costs for keys. More...
 
int * keyVariable_
 Key variable of set. More...
 
int * next_
 Next basic variable in set - starts at key and end with -(set+1). More...
 
int * toIndex_
 Backward pointer to index in CoinIndexedVector. More...
 
int * fromIndex_
 
ClpSimplexmodel_
 Pointer back to model. More...
 
int numberDualInfeasibilities_
 Number of dual infeasibilities. More...
 
int numberPrimalInfeasibilities_
 Number of primal infeasibilities. More...
 
int noCheck_
 If pricing will declare victory (i.e. More...
 
int numberSets_
 Number of sets (gub rows) More...
 
int saveNumber_
 Number in vector without gub extension. More...
 
int possiblePivotKey_
 Pivot row of possible next key. More...
 
int gubSlackIn_
 Gub slack in (set number or -1) More...
 
int firstGub_
 First gub variables (same as start_[0] at present) More...
 
int lastGub_
 last gub variable (same as end_[numberSets_-1] at present) More...
 
int gubType_
 type of gub - 0 not contiguous, 1 contiguous add 8 bit to say no ubs on individual variables More...
 
- Protected Attributes inherited from ClpPackedMatrix
CoinPackedMatrixmatrix_
 Data. More...
 
int numberActiveColumns_
 number of active columns (normally same as number of columns) More...
 
int flags_
 Flags - 1 - has zero elements 2 - has gaps 4 - has special row copy 8 - has special column copy 16 - wants special column copy. More...
 
ClpPackedMatrix2rowCopy_
 Special row copy. More...
 
ClpPackedMatrix3columnCopy_
 Special column copy. More...
 
- Protected Attributes inherited from ClpMatrixBase
double * rhsOffset_
 Effective RHS offset if it is being used. More...
 
double startFraction_
 Current start of search space in matrix (as fraction) More...
 
double endFraction_
 Current end of search space in matrix (as fraction) More...
 
double savedBestDj_
 Best reduced cost so far. More...
 
int originalWanted_
 Initial number of negative reduced costs wanted. More...
 
int currentWanted_
 Current number of negative reduced costs which we still need. More...
 
int savedBestSequence_
 Saved best sequence in pricing. More...
 
int type_
 type (may be useful) More...
 
int lastRefresh_
 If rhsOffset used this is iteration last refreshed. More...
 
int refreshFrequency_
 If rhsOffset used this is refresh frequency (0==off) More...
 
int minimumObjectsScan_
 Partial pricing tuning parameter - minimum number of "objects" to scan. More...
 
int minimumGoodReducedCosts_
 Partial pricing tuning parameter - minimum number of negative reduced costs to get. More...
 
int trueSequenceIn_
 True sequence in (i.e. from larger problem) More...
 
int trueSequenceOut_
 True sequence out (i.e. from larger problem) More...
 
bool skipDualCheck_
 whether to skip dual checks most of time More...
 

gets and sets

enum  DynamicStatus { inSmall = 0x01, atUpperBound = 0x02, atLowerBound = 0x03 }
 enums for status of various sorts More...
 
bool flagged (int i) const
 Whether flagged. More...
 
void setFlagged (int i)
 
void unsetFlagged (int i)
 
void setDynamicStatus (int sequence, DynamicStatus status)
 
DynamicStatus getDynamicStatus (int sequence) const
 
double objectiveOffset () const
 Saved value of objective offset. More...
 
CoinBigIndexstartColumn () const
 Starts of each column. More...
 
int * row () const
 rows More...
 
double * element () const
 elements More...
 
double * cost () const
 costs More...
 
int * fullStart () const
 full starts More...
 
int * id () const
 ids of active columns (just index here) More...
 
double * lowerColumn () const
 Optional lower bounds on columns. More...
 
double * upperColumn () const
 Optional upper bounds on columns. More...
 
double * lowerSet () const
 Optional true lower bounds on sets. More...
 
double * upperSet () const
 Optional true upper bounds on sets. More...
 
int numberGubColumns () const
 size More...
 
int firstAvailable () const
 first free More...
 
void setFirstAvailable (int value)
 set first free More...
 
int firstDynamic () const
 first dynamic More...
 
int lastDynamic () const
 number of columns in dynamic model More...
 
int numberElements () const
 size of working matrix (max) More...
 
unsigned char * gubRowStatus () const
 Status region for gub slacks. More...
 
unsigned char * dynamicStatus () const
 Status region for gub variables. More...
 
int whichSet (int sequence) const
 Returns which set a variable is in. More...
 

Additional Inherited Members

- Protected Member Functions inherited from ClpPackedMatrix
void checkFlags (int type) const
 Check validity. More...
 
- Protected Member Functions inherited from ClpMatrixBase
 ClpMatrixBase ()
 Default constructor. More...
 
 ClpMatrixBase (const ClpMatrixBase &)
 
ClpMatrixBaseoperator= (const ClpMatrixBase &)
 

Detailed Description

This implements Gub rows plus a ClpPackedMatrix.

This a dynamic version which stores the gub part and dynamically creates matrix. All bounds are assumed to be zero and infinity

This is just a simple example for real column generation

Definition at line 20 of file ClpGubDynamicMatrix.hpp.

Member Enumeration Documentation

enums for status of various sorts

Enumerator
inSmall 
atUpperBound 
atLowerBound 

Definition at line 100 of file ClpGubDynamicMatrix.hpp.

Constructor & Destructor Documentation

ClpGubDynamicMatrix::ClpGubDynamicMatrix ( )

Default constructor.

virtual ClpGubDynamicMatrix::~ClpGubDynamicMatrix ( )
virtual

Destructor.

ClpGubDynamicMatrix::ClpGubDynamicMatrix ( const ClpGubDynamicMatrix )

The copy constructor.

ClpGubDynamicMatrix::ClpGubDynamicMatrix ( ClpSimplex model,
int  numberSets,
int  numberColumns,
const int *  starts,
const double *  lower,
const double *  upper,
const int *  startColumn,
const int *  row,
const double *  element,
const double *  cost,
const double *  lowerColumn = NULL,
const double *  upperColumn = NULL,
const unsigned char *  status = NULL 
)

This is the real constructor.

It assumes factorization frequency will not be changed. This resizes model !!!!

Member Function Documentation

virtual void ClpGubDynamicMatrix::partialPricing ( ClpSimplex model,
double  start,
double  end,
int &  bestSequence,
int &  numberWanted 
)
virtual

Partial pricing.

Reimplemented from ClpGubMatrix.

virtual int ClpGubDynamicMatrix::synchronize ( ClpSimplex model,
int  mode 
)
virtual

This is local to Gub to allow synchronization: mode=0 when status of basis is good mode=1 when variable is flagged mode=2 when all variables unflagged (returns number flagged) mode=3 just reset costs (primal) mode=4 correct number of dual infeasibilities mode=5 return 4 if time to re-factorize mode=8 - make sure set is clean mode=9 - adjust lower, upper on set by incoming.

Reimplemented from ClpGubMatrix.

virtual void ClpGubDynamicMatrix::useEffectiveRhs ( ClpSimplex model,
bool  cheapest = true 
)
virtual

Sets up an effective RHS and does gub crash if needed.

Reimplemented from ClpGubMatrix.

virtual int ClpGubDynamicMatrix::updatePivot ( ClpSimplex model,
double  oldInValue,
double  oldOutValue 
)
virtual

update information for a pivot (and effective rhs)

Reimplemented from ClpGubMatrix.

void ClpGubDynamicMatrix::insertNonBasic ( int  sequence,
int  iSet 
)

Add a new variable to a set.

virtual double* ClpGubDynamicMatrix::rhsOffset ( ClpSimplex model,
bool  forceRefresh = false,
bool  check = false 
)
virtual

Returns effective RHS offset if it is being used.

This is used for long problems or big gub or anywhere where going through full columns is expensive. This may re-compute

Reimplemented from ClpGubMatrix.

virtual void ClpGubDynamicMatrix::times ( double  scalar,
const double *  x,
double *  y 
) const
virtual

Return y + A * scalar *x in y.

Precondition
x must be of size numColumns()
y must be of size numRows()

Reimplemented from ClpPackedMatrix.

virtual int ClpGubDynamicMatrix::checkFeasible ( ClpSimplex model,
double &  sum 
) const
virtual

Just for debug Returns sum and number of primal infeasibilities.

Recomputes keys

Reimplemented from ClpMatrixBase.

void ClpGubDynamicMatrix::cleanData ( ClpSimplex model)

Cleans data after setWarmStart.

ClpGubDynamicMatrix& ClpGubDynamicMatrix::operator= ( const ClpGubDynamicMatrix )
virtual ClpMatrixBase* ClpGubDynamicMatrix::clone ( ) const
virtual

Clone.

Reimplemented from ClpGubMatrix.

bool ClpGubDynamicMatrix::flagged ( int  i) const
inline

Whether flagged.

Definition at line 106 of file ClpGubDynamicMatrix.hpp.

void ClpGubDynamicMatrix::setFlagged ( int  i)
inline

Definition at line 109 of file ClpGubDynamicMatrix.hpp.

void ClpGubDynamicMatrix::unsetFlagged ( int  i)
inline

Definition at line 112 of file ClpGubDynamicMatrix.hpp.

void ClpGubDynamicMatrix::setDynamicStatus ( int  sequence,
DynamicStatus  status 
)
inline

Definition at line 115 of file ClpGubDynamicMatrix.hpp.

DynamicStatus ClpGubDynamicMatrix::getDynamicStatus ( int  sequence) const
inline

Definition at line 120 of file ClpGubDynamicMatrix.hpp.

double ClpGubDynamicMatrix::objectiveOffset ( ) const
inline

Saved value of objective offset.

Definition at line 124 of file ClpGubDynamicMatrix.hpp.

CoinBigIndex* ClpGubDynamicMatrix::startColumn ( ) const
inline

Starts of each column.

Definition at line 128 of file ClpGubDynamicMatrix.hpp.

int* ClpGubDynamicMatrix::row ( ) const
inline

rows

Definition at line 132 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::element ( ) const
inline

elements

Definition at line 136 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::cost ( ) const
inline

costs

Definition at line 140 of file ClpGubDynamicMatrix.hpp.

int* ClpGubDynamicMatrix::fullStart ( ) const
inline

full starts

Definition at line 144 of file ClpGubDynamicMatrix.hpp.

int* ClpGubDynamicMatrix::id ( ) const
inline

ids of active columns (just index here)

Definition at line 148 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::lowerColumn ( ) const
inline

Optional lower bounds on columns.

Definition at line 152 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::upperColumn ( ) const
inline

Optional upper bounds on columns.

Definition at line 156 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::lowerSet ( ) const
inline

Optional true lower bounds on sets.

Definition at line 160 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::upperSet ( ) const
inline

Optional true upper bounds on sets.

Definition at line 164 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::numberGubColumns ( ) const
inline

size

Definition at line 168 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::firstAvailable ( ) const
inline

first free

Definition at line 172 of file ClpGubDynamicMatrix.hpp.

void ClpGubDynamicMatrix::setFirstAvailable ( int  value)
inline

set first free

Definition at line 176 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::firstDynamic ( ) const
inline

first dynamic

Definition at line 180 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::lastDynamic ( ) const
inline

number of columns in dynamic model

Definition at line 184 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::numberElements ( ) const
inline

size of working matrix (max)

Definition at line 188 of file ClpGubDynamicMatrix.hpp.

unsigned char* ClpGubDynamicMatrix::gubRowStatus ( ) const
inline

Status region for gub slacks.

Definition at line 192 of file ClpGubDynamicMatrix.hpp.

unsigned char* ClpGubDynamicMatrix::dynamicStatus ( ) const
inline

Status region for gub variables.

Definition at line 196 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::whichSet ( int  sequence) const

Returns which set a variable is in.

Member Data Documentation

double ClpGubDynamicMatrix::objectiveOffset_
protected

Saved value of objective offset.

Definition at line 209 of file ClpGubDynamicMatrix.hpp.

CoinBigIndex* ClpGubDynamicMatrix::startColumn_
protected

Starts of each column.

Definition at line 211 of file ClpGubDynamicMatrix.hpp.

int* ClpGubDynamicMatrix::row_
protected

rows

Definition at line 213 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::element_
protected

elements

Definition at line 215 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::cost_
protected

costs

Definition at line 217 of file ClpGubDynamicMatrix.hpp.

int* ClpGubDynamicMatrix::fullStart_
protected

full starts

Definition at line 219 of file ClpGubDynamicMatrix.hpp.

int* ClpGubDynamicMatrix::id_
protected

ids of active columns (just index here)

Definition at line 221 of file ClpGubDynamicMatrix.hpp.

unsigned char* ClpGubDynamicMatrix::dynamicStatus_
protected

for status and which bound

Definition at line 223 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::lowerColumn_
protected

Optional lower bounds on columns.

Definition at line 225 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::upperColumn_
protected

Optional upper bounds on columns.

Definition at line 227 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::lowerSet_
protected

Optional true lower bounds on sets.

Definition at line 229 of file ClpGubDynamicMatrix.hpp.

double* ClpGubDynamicMatrix::upperSet_
protected

Optional true upper bounds on sets.

Definition at line 231 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::numberGubColumns_
protected

size

Definition at line 233 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::firstAvailable_
protected

first free

Definition at line 235 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::savedFirstAvailable_
protected

saved first free

Definition at line 237 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::firstDynamic_
protected

first dynamic

Definition at line 239 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::lastDynamic_
protected

number of columns in dynamic model

Definition at line 241 of file ClpGubDynamicMatrix.hpp.

int ClpGubDynamicMatrix::numberElements_
protected

size of working matrix (max)

Definition at line 243 of file ClpGubDynamicMatrix.hpp.


The documentation for this class was generated from the following file: