CbcHeuristicFPump Class Reference
Rounding class. More...
#include <CbcHeuristicFPump.hpp>
Public Member Functions | |
| CbcHeuristicFPump () | |
| CbcHeuristicFPump (CbcModel &model, double downValue=0.5, bool roundExpensive=false) | |
| CbcHeuristicFPump (const CbcHeuristicFPump &) | |
| ~CbcHeuristicFPump () | |
| CbcHeuristicFPump & | operator= (const CbcHeuristicFPump &rhs) |
| Assignment operator. | |
| virtual CbcHeuristic * | clone () const |
| Clone. | |
| virtual void | generateCpp (FILE *fp) |
| Create C++ lines to get to current state. | |
| virtual void | resetModel (CbcModel *model) |
| Resets stuff if model changes. | |
| virtual void | setModel (CbcModel *model) |
| update model (This is needed if cliques update matrix etc) | |
| virtual int | solution (double &objectiveValue, double *newSolution) |
| returns 0 if no solution, 1 if valid solution with better objective value than one passed in Sets solution values if good, sets objective value (only if good) This is called after cuts have been added - so can not add cuts. | |
| void | setMaximumTime (double value) |
| Set maximum Time (default off) - also sets starttime to current. | |
| double | maximumTime () const |
| Get maximum Time (default 0.0 == time limit off). | |
| void | setFakeCutoff (double value) |
| Set fake cutoff (default COIN_DBL_MAX == off). | |
| double | fakeCutoff () const |
| Get fake cutoff (default 0.0 == off). | |
| void | setAbsoluteIncrement (double value) |
| Set absolute increment (default 0.0 == off). | |
| double | absoluteIncrement () const |
| Get absolute increment (default 0.0 == off). | |
| void | setRelativeIncrement (double value) |
| Set relative increment (default 0.0 == off). | |
| double | relativeIncrement () const |
| Get relative increment (default 0.0 == off). | |
| void | setDefaultRounding (double value) |
| Set default rounding (default 0.5). | |
| double | defaultRounding () const |
| Get default rounding (default 0.5). | |
| void | setInitialWeight (double value) |
| Set initial weight (default 0.0 == off). | |
| double | initialWeight () const |
| Get initial weight (default 0.0 == off). | |
| void | setWeightFactor (double value) |
| Set weight factor (default 0.1). | |
| double | weightFactor () const |
| Get weight factor (default 0.1). | |
| void | setArtificialCost (double value) |
| Set threshold cost for using original cost - even on continuous (default infinity). | |
| double | artificialCost () const |
| Get threshold cost for using original cost - even on continuous (default infinity). | |
| void | setMaximumPasses (int value) |
| Set maximum passes (default 100). | |
| int | maximumPasses () const |
| Get maximum passes (default 100). | |
| void | setMaximumRetries (int value) |
| Set maximum retries (default 1). | |
| int | maximumRetries () const |
| Get maximum retries (default 1). | |
| void | setAccumulate (int value) |
| Set use of multiple solutions and solves 0 - do not reuse solves, do not accumulate integer solutions for local search 1 - do not reuse solves, accumulate integer solutions for local search 2 - reuse solves, do not accumulate integer solutions for local search 3 - reuse solves, accumulate integer solutions for local search. | |
| int | accumulate () const |
| Get accumulation option. | |
| void | setFixOnReducedCosts (int value) |
| Set whether to fix variables on known solution 0 - do not fix 1 - fix integers on reduced costs 2 - fix integers on reduced costs but only on entry. | |
| int | fixOnReducedCosts () const |
| Get reduced cost option. | |
Protected Attributes | |
| double | startTime_ |
| Start time. | |
| double | maximumTime_ |
| Maximum Cpu seconds. | |
| double | fakeCutoff_ |
| Fake cutoff value. | |
| double | absoluteIncrement_ |
| If positive carry on after solution expecting gain of at least this. | |
| double | relativeIncrement_ |
| If positive carry on after solution expecting gain of at least this times objective. | |
| double | defaultRounding_ |
| Default is round up if > this. | |
| double | initialWeight_ |
| Initial weight for true objective. | |
| double | weightFactor_ |
| Factor for decreasing weight. | |
| double | artificialCost_ |
| Threshold cost for using original cost - even on continuous. | |
| int | maximumPasses_ |
| Maximum number of passes. | |
| int | maximumRetries_ |
| Maximum number of retries if we find a solution. | |
| int | accumulate_ |
| Set use of multiple solutions and solves 0 - do not reuse solves, do not accumulate integer solutions for local search 1 - do not reuse solves, accumulate integer solutions for local search 2 - reuse solves, do not accumulate integer solutions for local search 3 - reuse solves, accumulate integer solutions for local search If we add 4 then use second form of problem (with extra rows and variables). | |
| int | fixOnReducedCosts_ |
| Set whether to fix variables on known solution 0 - do not fix 1 - fix integers on reduced costs 2 - fix integers on reduced costs but only on entry. | |
| bool | roundExpensive_ |
| If true round to expensive. | |
Private Member Functions | |
| int | rounds (OsiSolverInterface *solver, double *solution, const double *objective, int numberIntegers, const int *integerVariable, char *pumpPrint, int &passNumber, bool roundExpensive=false, double downValue=0.5, int *flip=0) |
| Rounds solution - down if < downValue If roundExpensive then always to more expnsive. | |
Detailed Description
Rounding class.
Definition at line 11 of file CbcHeuristicFPump.hpp.
Constructor & Destructor Documentation
| CbcHeuristicFPump::CbcHeuristicFPump | ( | ) |
| CbcHeuristicFPump::CbcHeuristicFPump | ( | CbcModel & | model, | |
| double | downValue = 0.5, |
|||
| bool | roundExpensive = false | |||
| ) |
| CbcHeuristicFPump::CbcHeuristicFPump | ( | const CbcHeuristicFPump & | ) |
| CbcHeuristicFPump::~CbcHeuristicFPump | ( | ) |
Member Function Documentation
| CbcHeuristicFPump& CbcHeuristicFPump::operator= | ( | const CbcHeuristicFPump & | rhs | ) |
Assignment operator.
Reimplemented from CbcHeuristic.
| virtual CbcHeuristic* CbcHeuristicFPump::clone | ( | ) | const [virtual] |
Clone.
Implements CbcHeuristic.
| virtual void CbcHeuristicFPump::generateCpp | ( | FILE * | fp | ) | [virtual] |
Create C++ lines to get to current state.
Reimplemented from CbcHeuristic.
| virtual void CbcHeuristicFPump::resetModel | ( | CbcModel * | model | ) | [virtual] |
Resets stuff if model changes.
Implements CbcHeuristic.
| virtual void CbcHeuristicFPump::setModel | ( | CbcModel * | model | ) | [virtual] |
update model (This is needed if cliques update matrix etc)
Reimplemented from CbcHeuristic.
| virtual int CbcHeuristicFPump::solution | ( | double & | objectiveValue, | |
| double * | newSolution | |||
| ) | [virtual] |
returns 0 if no solution, 1 if valid solution with better objective value than one passed in Sets solution values if good, sets objective value (only if good) This is called after cuts have been added - so can not add cuts.
It may make sense for user to call this outside Branch and Cut to get solution. Or normally is just at root node.
new meanings for when_ - on first try then set back to 1 11 - at end fix all integers at same bound throughout 12 - also fix all integers staying at same internal integral value throughout 13 - also fix all continuous variables staying at same bound throughout 14 - also fix all continuous variables staying at same internal value throughout 15 - as 13 but no internal integers
Implements CbcHeuristic.
| void CbcHeuristicFPump::setMaximumTime | ( | double | value | ) |
Set maximum Time (default off) - also sets starttime to current.
| double CbcHeuristicFPump::maximumTime | ( | ) | const [inline] |
Get maximum Time (default 0.0 == time limit off).
Definition at line 62 of file CbcHeuristicFPump.hpp.
| void CbcHeuristicFPump::setFakeCutoff | ( | double | value | ) | [inline] |
Set fake cutoff (default COIN_DBL_MAX == off).
Definition at line 65 of file CbcHeuristicFPump.hpp.
| double CbcHeuristicFPump::fakeCutoff | ( | ) | const [inline] |
Get fake cutoff (default 0.0 == off).
Definition at line 68 of file CbcHeuristicFPump.hpp.
| void CbcHeuristicFPump::setAbsoluteIncrement | ( | double | value | ) | [inline] |
Set absolute increment (default 0.0 == off).
Definition at line 71 of file CbcHeuristicFPump.hpp.
| double CbcHeuristicFPump::absoluteIncrement | ( | ) | const [inline] |
Get absolute increment (default 0.0 == off).
Definition at line 74 of file CbcHeuristicFPump.hpp.
| void CbcHeuristicFPump::setRelativeIncrement | ( | double | value | ) | [inline] |
Set relative increment (default 0.0 == off).
Definition at line 77 of file CbcHeuristicFPump.hpp.
| double CbcHeuristicFPump::relativeIncrement | ( | ) | const [inline] |
Get relative increment (default 0.0 == off).
Definition at line 80 of file CbcHeuristicFPump.hpp.
| void CbcHeuristicFPump::setDefaultRounding | ( | double | value | ) | [inline] |
Set default rounding (default 0.5).
Definition at line 83 of file CbcHeuristicFPump.hpp.
| double CbcHeuristicFPump::defaultRounding | ( | ) | const [inline] |
Get default rounding (default 0.5).
Definition at line 86 of file CbcHeuristicFPump.hpp.
| void CbcHeuristicFPump::setInitialWeight | ( | double | value | ) | [inline] |
Set initial weight (default 0.0 == off).
Definition at line 89 of file CbcHeuristicFPump.hpp.
| double CbcHeuristicFPump::initialWeight | ( | ) | const [inline] |
Get initial weight (default 0.0 == off).
Definition at line 92 of file CbcHeuristicFPump.hpp.
| void CbcHeuristicFPump::setWeightFactor | ( | double | value | ) | [inline] |
Set weight factor (default 0.1).
Definition at line 95 of file CbcHeuristicFPump.hpp.
| double CbcHeuristicFPump::weightFactor | ( | ) | const [inline] |
Get weight factor (default 0.1).
Definition at line 98 of file CbcHeuristicFPump.hpp.
| void CbcHeuristicFPump::setArtificialCost | ( | double | value | ) | [inline] |
Set threshold cost for using original cost - even on continuous (default infinity).
Definition at line 101 of file CbcHeuristicFPump.hpp.
| double CbcHeuristicFPump::artificialCost | ( | ) | const [inline] |
Get threshold cost for using original cost - even on continuous (default infinity).
Definition at line 104 of file CbcHeuristicFPump.hpp.
| void CbcHeuristicFPump::setMaximumPasses | ( | int | value | ) | [inline] |
Set maximum passes (default 100).
Definition at line 107 of file CbcHeuristicFPump.hpp.
| int CbcHeuristicFPump::maximumPasses | ( | ) | const [inline] |
Get maximum passes (default 100).
Definition at line 110 of file CbcHeuristicFPump.hpp.
| void CbcHeuristicFPump::setMaximumRetries | ( | int | value | ) | [inline] |
Set maximum retries (default 1).
Definition at line 113 of file CbcHeuristicFPump.hpp.
| int CbcHeuristicFPump::maximumRetries | ( | ) | const [inline] |
Get maximum retries (default 1).
Definition at line 116 of file CbcHeuristicFPump.hpp.
| void CbcHeuristicFPump::setAccumulate | ( | int | value | ) | [inline] |
Set use of multiple solutions and solves 0 - do not reuse solves, do not accumulate integer solutions for local search 1 - do not reuse solves, accumulate integer solutions for local search 2 - reuse solves, do not accumulate integer solutions for local search 3 - reuse solves, accumulate integer solutions for local search.
Definition at line 124 of file CbcHeuristicFPump.hpp.
| int CbcHeuristicFPump::accumulate | ( | ) | const [inline] |
Get accumulation option.
Definition at line 127 of file CbcHeuristicFPump.hpp.
| void CbcHeuristicFPump::setFixOnReducedCosts | ( | int | value | ) | [inline] |
Set whether to fix variables on known solution 0 - do not fix 1 - fix integers on reduced costs 2 - fix integers on reduced costs but only on entry.
Definition at line 134 of file CbcHeuristicFPump.hpp.
| int CbcHeuristicFPump::fixOnReducedCosts | ( | ) | const [inline] |
Get reduced cost option.
Definition at line 137 of file CbcHeuristicFPump.hpp.
| int CbcHeuristicFPump::rounds | ( | OsiSolverInterface * | solver, | |
| double * | solution, | |||
| const double * | objective, | |||
| int | numberIntegers, | |||
| const int * | integerVariable, | |||
| char * | pumpPrint, | |||
| int & | passNumber, | |||
| bool | roundExpensive = false, |
|||
| double | downValue = 0.5, |
|||
| int * | flip = 0 | |||
| ) | [private] |
Rounds solution - down if < downValue If roundExpensive then always to more expnsive.
returns 0 if current is solution
Member Data Documentation
double CbcHeuristicFPump::startTime_ [protected] |
Start time.
Definition at line 143 of file CbcHeuristicFPump.hpp.
double CbcHeuristicFPump::maximumTime_ [protected] |
Maximum Cpu seconds.
Definition at line 145 of file CbcHeuristicFPump.hpp.
double CbcHeuristicFPump::fakeCutoff_ [protected] |
Fake cutoff value.
If set then better of real cutoff and this used to add a constraint
Definition at line 149 of file CbcHeuristicFPump.hpp.
double CbcHeuristicFPump::absoluteIncrement_ [protected] |
If positive carry on after solution expecting gain of at least this.
Definition at line 151 of file CbcHeuristicFPump.hpp.
double CbcHeuristicFPump::relativeIncrement_ [protected] |
If positive carry on after solution expecting gain of at least this times objective.
Definition at line 153 of file CbcHeuristicFPump.hpp.
double CbcHeuristicFPump::defaultRounding_ [protected] |
Default is round up if > this.
Definition at line 155 of file CbcHeuristicFPump.hpp.
double CbcHeuristicFPump::initialWeight_ [protected] |
Initial weight for true objective.
Definition at line 157 of file CbcHeuristicFPump.hpp.
double CbcHeuristicFPump::weightFactor_ [protected] |
Factor for decreasing weight.
Definition at line 159 of file CbcHeuristicFPump.hpp.
double CbcHeuristicFPump::artificialCost_ [protected] |
Threshold cost for using original cost - even on continuous.
Definition at line 161 of file CbcHeuristicFPump.hpp.
int CbcHeuristicFPump::maximumPasses_ [protected] |
Maximum number of passes.
Definition at line 163 of file CbcHeuristicFPump.hpp.
int CbcHeuristicFPump::maximumRetries_ [protected] |
Maximum number of retries if we find a solution.
If negative we clean out used array
Definition at line 167 of file CbcHeuristicFPump.hpp.
int CbcHeuristicFPump::accumulate_ [protected] |
Set use of multiple solutions and solves 0 - do not reuse solves, do not accumulate integer solutions for local search 1 - do not reuse solves, accumulate integer solutions for local search 2 - reuse solves, do not accumulate integer solutions for local search 3 - reuse solves, accumulate integer solutions for local search If we add 4 then use second form of problem (with extra rows and variables).
Definition at line 175 of file CbcHeuristicFPump.hpp.
int CbcHeuristicFPump::fixOnReducedCosts_ [protected] |
Set whether to fix variables on known solution 0 - do not fix 1 - fix integers on reduced costs 2 - fix integers on reduced costs but only on entry.
Definition at line 181 of file CbcHeuristicFPump.hpp.
bool CbcHeuristicFPump::roundExpensive_ [protected] |
If true round to expensive.
Definition at line 183 of file CbcHeuristicFPump.hpp.
The documentation for this class was generated from the following file:
- /home/coin/svn-release/OptimizationSuite-1.1.0/Cbc/src/CbcHeuristicFPump.hpp
