Dip-All
0.91.0
|
Define an idiotic idea class. More...
#include <CbcFollowOn.hpp>
Public Member Functions | |
CbcIdiotBranch () | |
CbcIdiotBranch (CbcModel *model) | |
Useful constructor. More... | |
CbcIdiotBranch (const CbcIdiotBranch &) | |
virtual CbcObject * | clone () const |
Clone. More... | |
CbcIdiotBranch & | operator= (const CbcIdiotBranch &rhs) |
~CbcIdiotBranch () | |
virtual double | infeasibility (const OsiBranchingInformation *info, int &preferredWay) const |
Infeasibility - large is 0.5. More... | |
virtual void | feasibleRegion () |
This looks at solution and sets bounds to contain solution. More... | |
virtual CbcBranchingObject * | createCbcBranch (OsiSolverInterface *solver, const OsiBranchingInformation *info, int way) |
Creates a branching object. More... | |
virtual void | initializeForBranching (CbcModel *) |
Initialize for branching. More... | |
![]() | |
CbcObject () | |
CbcObject (CbcModel *model) | |
CbcObject (const CbcObject &) | |
CbcObject & | operator= (const CbcObject &rhs) |
virtual | ~CbcObject () |
Destructor. More... | |
virtual double | infeasibility (int &) const |
virtual double | feasibleRegion (OsiSolverInterface *solver, const OsiBranchingInformation *info) const |
Dummy one for compatibility. More... | |
virtual double | feasibleRegion (OsiSolverInterface *solver) const |
For the variable(s) referenced by the object, look at the current solution and set bounds to match the solution. More... | |
virtual OsiBranchingObject * | createBranch (OsiSolverInterface *, const OsiBranchingInformation *, int) const |
Create a branching object and indicate which way to branch first. More... | |
virtual OsiBranchingObject * | createOsiBranch (OsiSolverInterface *solver, const OsiBranchingInformation *info, int way) const |
Create an Osibranching object and indicate which way to branch first. More... | |
virtual OsiSolverBranch * | solverBranch () const |
Create an OsiSolverBranch object. More... | |
virtual CbcBranchingObject * | preferredNewFeasible () const |
Given a valid solution (with reduced costs, etc.), return a branching object which would give a new feasible point in a good direction. More... | |
virtual CbcBranchingObject * | notPreferredNewFeasible () const |
Given a valid solution (with reduced costs, etc.), return a branching object which would give a new feasible point in a bad direction. More... | |
virtual void | resetBounds (const OsiSolverInterface *) |
Reset variable bounds to their original values. More... | |
virtual void | floorCeiling (double &floorValue, double &ceilingValue, double value, double tolerance) const |
Returns floor and ceiling i.e. More... | |
virtual CbcObjectUpdateData | createUpdateInformation (const OsiSolverInterface *solver, const CbcNode *node, const CbcBranchingObject *branchingObject) |
Pass in information on branch just done and create CbcObjectUpdateData instance. More... | |
virtual void | updateInformation (const CbcObjectUpdateData &) |
Update object by CbcObjectUpdateData. More... | |
int | id () const |
Identifier (normally column number in matrix) More... | |
void | setId (int value) |
Set identifier (normally column number in matrix) but 1000000000 to 1100000000 means optional branching object i.e. More... | |
bool | optionalObject () const |
Return true if optional branching object i.e. More... | |
int | position () const |
Get position in object_ list. More... | |
void | setPosition (int position) |
Set position in object_ list. More... | |
void | setModel (CbcModel *model) |
update model More... | |
CbcModel * | model () const |
Return model. More... | |
int | preferredWay () const |
If -1 down always chosen first, +1 up always, 0 normal. More... | |
void | setPreferredWay (int value) |
Set -1 down always chosen first, +1 up always, 0 normal. More... | |
virtual void | redoSequenceEtc (CbcModel *, int, const int *) |
Redoes data when sequence numbers change. More... | |
![]() | |
OsiObject () | |
Default Constructor. More... | |
OsiObject (const OsiObject &) | |
Copy constructor. More... | |
OsiObject & | operator= (const OsiObject &rhs) |
Assignment operator. More... | |
virtual | ~OsiObject () |
Destructor. More... | |
double | infeasibility (const OsiSolverInterface *solver, int &whichWay) const |
Infeasibility of the object. More... | |
virtual double | checkInfeasibility (const OsiBranchingInformation *info) const |
virtual bool | canDoHeuristics () const |
Return true if object can take part in normal heuristics. More... | |
virtual bool | canMoveToNearest () const |
Return true if object can take part in move to nearest heuristic. More... | |
virtual int | columnNumber () const |
Column number if single column object -1 otherwise, Used by heuristics. More... | |
int | priority () const |
Return Priority - note 1 is highest priority. More... | |
void | setPriority (int priority) |
Set priority. More... | |
virtual bool | boundBranch () const |
Return true if branch should only bound variables. More... | |
virtual bool | canHandleShadowPrices () const |
Return true if knows how to deal with Pseudo Shadow Prices. More... | |
int | numberWays () const |
Return maximum number of ways branch may have. More... | |
void | setNumberWays (int numberWays) |
Set maximum number of ways branch may have. More... | |
void | setWhichWay (int way) |
Return preferred way to branch. More... | |
int | whichWay () const |
Return current preferred way to branch. More... | |
double | infeasibility () const |
Return infeasibility. More... | |
virtual double | upEstimate () const |
Return "up" estimate (default 1.0e-5) More... | |
virtual double | downEstimate () const |
Return "down" estimate (default 1.0e-5) More... | |
virtual void | resetSequenceEtc (int, const int *) |
Change column numbers after preprocessing. More... | |
virtual void | updateBefore (const OsiObject *) |
Updates stuff like pseudocosts before threads. More... | |
virtual void | updateAfter (const OsiObject *, const OsiObject *) |
Updates stuff like pseudocosts after threads finished. More... | |
Protected Member Functions | |
OsiRowCut | buildCut (const OsiBranchingInformation *info, int type, int &preferredWay) const |
Build "cut". More... | |
Protected Attributes | |
CoinThreadRandom | randomNumberGenerator_ |
data Thread specific random number generator More... | |
CoinThreadRandom | savedRandomNumberGenerator_ |
Saved version of thread specific random number generator. More... | |
![]() | |
CbcModel * | model_ |
data More... | |
int | id_ |
Identifier (normally column number in matrix) More... | |
int | position_ |
Position in object list. More... | |
int | preferredWay_ |
If -1 down always chosen first, +1 up always, 0 normal. More... | |
![]() | |
double | infeasibility_ |
data More... | |
short | whichWay_ |
Computed preferred way to branch. More... | |
short | numberWays_ |
Maximum number of ways on branch. More... | |
int | priority_ |
Priority. More... | |
Define an idiotic idea class.
The idea of this is that we take some integer variables away from integer and sum them with some randomness to get signed sum close to 0.5. We then can branch to exclude that gap.
This branching rule should be in addition to normal rules and have a high priority.
Definition at line 161 of file CbcFollowOn.hpp.
CbcIdiotBranch::CbcIdiotBranch | ( | ) |
CbcIdiotBranch::CbcIdiotBranch | ( | CbcModel * | model | ) |
Useful constructor.
CbcIdiotBranch::CbcIdiotBranch | ( | const CbcIdiotBranch & | ) |
CbcIdiotBranch::~CbcIdiotBranch | ( | ) |
CbcIdiotBranch& CbcIdiotBranch::operator= | ( | const CbcIdiotBranch & | rhs | ) |
|
virtual |
Infeasibility - large is 0.5.
Reimplemented from CbcObject.
|
virtual |
This looks at solution and sets bounds to contain solution.
Implements CbcObject.
|
virtual |
Creates a branching object.
Reimplemented from CbcObject.
Initialize for branching.
Reimplemented from CbcObject.
|
protected |
Build "cut".
|
mutableprotected |
data Thread specific random number generator
Definition at line 201 of file CbcFollowOn.hpp.
|
mutableprotected |
Saved version of thread specific random number generator.
Definition at line 203 of file CbcFollowOn.hpp.