Detailed Description
type definitions for pricing problem solvers in GCG project
Definition in file type_solver.h.
#include "scip/def.h"
#include "scip/type_scip.h"
#include "type_gcgcol.h"
#include "type_pricingstatus.h"
Go to the source code of this file.
Macros | |
#define | GCG_DECL_SOLVERFREE(x) SCIP_RETCODE x (SCIP* scip, GCG_SOLVER* solver) |
#define | GCG_DECL_SOLVERINIT(x) SCIP_RETCODE x (SCIP* scip, GCG_SOLVER* solver) |
#define | GCG_DECL_SOLVEREXIT(x) SCIP_RETCODE x (SCIP* scip, GCG_SOLVER* solver) |
#define | GCG_DECL_SOLVERINITSOL(x) SCIP_RETCODE x (SCIP* scip, GCG_SOLVER* solver) |
#define | GCG_DECL_SOLVEREXITSOL(x) SCIP_RETCODE x (SCIP* scip, GCG_SOLVER* solver) |
#define | GCG_DECL_SOLVERUPDATE(x) SCIP_RETCODE x (SCIP* pricingprob, GCG_SOLVER* solver, int probnr, SCIP_Bool varobjschanged, SCIP_Bool varbndschanged, SCIP_Bool consschanged) |
#define | GCG_DECL_SOLVERSOLVE(x) SCIP_RETCODE x (SCIP* scip, SCIP* pricingprob, GCG_SOLVER* solver, int probnr, SCIP_Real dualsolconv, SCIP_Real* lowerbound, GCG_PRICINGSTATUS* status) |
#define | GCG_DECL_SOLVERSOLVEHEUR(x) SCIP_RETCODE x (SCIP* scip, SCIP* pricingprob, GCG_SOLVER* solver, int probnr, SCIP_Real dualsolconv, SCIP_Real* lowerbound, GCG_PRICINGSTATUS* status) |
Typedefs | |
typedef struct GCG_SolverData | GCG_SOLVERDATA |
typedef struct GCG_Solver | GCG_SOLVER |
Macro Definition Documentation
◆ GCG_DECL_SOLVERFREE
#define GCG_DECL_SOLVERFREE | ( | x | ) | SCIP_RETCODE x (SCIP* scip, GCG_SOLVER* solver) |
destructor of pricing solver to free user data (called when GCG is exiting)
input:
- scip : SCIP main data structure (master problem)
- solver : the pricing solver itself
Definition at line 59 of file type_solver.h.
◆ GCG_DECL_SOLVERINIT
#define GCG_DECL_SOLVERINIT | ( | x | ) | SCIP_RETCODE x (SCIP* scip, GCG_SOLVER* solver) |
initialization method of pricing solver (called after problem was transformed and solver is active)
input:
- scip : SCIP main data structure (master problem)
- solver : the pricing solver itself
Definition at line 67 of file type_solver.h.
◆ GCG_DECL_SOLVEREXIT
#define GCG_DECL_SOLVEREXIT | ( | x | ) | SCIP_RETCODE x (SCIP* scip, GCG_SOLVER* solver) |
deinitialization method of pricing solver (called before transformed problem is freed and solver is active)
input:
- scip : SCIP main data structure (master problem)
- solver : the pricing solver itself
Definition at line 75 of file type_solver.h.
◆ GCG_DECL_SOLVERINITSOL
#define GCG_DECL_SOLVERINITSOL | ( | x | ) | SCIP_RETCODE x (SCIP* scip, GCG_SOLVER* solver) |
solving process initialization method of pricing solver (called when branch and bound process is about to begin)
This method is called when the presolving was finished and the branch and bound process is about to begin. The pricing solver may use this call to initialize its branch and bound specific data.
input:
- scip : SCIP main data structure (master problem)
- solver : the pricing solver itself
Definition at line 86 of file type_solver.h.
◆ GCG_DECL_SOLVEREXITSOL
#define GCG_DECL_SOLVEREXITSOL | ( | x | ) | SCIP_RETCODE x (SCIP* scip, GCG_SOLVER* solver) |
solving process deinitialization method of pricing solver (called before branch and bound process data is freed)
This method is called before the branch and bound process is freed. The pricing solver should use this call to clean up its branch and bound data.
input:
- scip : SCIP main data structure (master problem)
- solver : the pricing solver itself
Definition at line 97 of file type_solver.h.
◆ GCG_DECL_SOLVERUPDATE
#define GCG_DECL_SOLVERUPDATE | ( | x | ) | SCIP_RETCODE x (SCIP* pricingprob, GCG_SOLVER* solver, int probnr, SCIP_Bool varobjschanged, SCIP_Bool varbndschanged, SCIP_Bool consschanged) |
update method for pricing solver, used to update solver specific pricing problem data
The pricing solver may use this method to update its own representation of the pricing problem, i.e. to apply changes on variable objectives and bounds and to apply branching constraints
Definition at line 105 of file type_solver.h.
◆ GCG_DECL_SOLVERSOLVE
#define GCG_DECL_SOLVERSOLVE | ( | x | ) | SCIP_RETCODE x (SCIP* scip, SCIP* pricingprob, GCG_SOLVER* solver, int probnr, SCIP_Real dualsolconv, SCIP_Real* lowerbound, GCG_PRICINGSTATUS* status) |
solving method for pricing solver which solves the pricing problem to optimality
input:
- scip : SCIP main data structure (master problem)
- pricingprob : the pricing problem that should be solved
- solver : the pricing solver itself
- probnr : number of the pricing problem
- dualsolconv : dual solution of the corresponding convexity constraint
- lowerbound : pointer to store lower bound of pricing problem
- status : pointer to store the pricing status
Definition at line 119 of file type_solver.h.
◆ GCG_DECL_SOLVERSOLVEHEUR
#define GCG_DECL_SOLVERSOLVEHEUR | ( | x | ) | SCIP_RETCODE x (SCIP* scip, SCIP* pricingprob, GCG_SOLVER* solver, int probnr, SCIP_Real dualsolconv, SCIP_Real* lowerbound, GCG_PRICINGSTATUS* status) |
solving method for pricing solver using heuristic pricing only
input:
- scip : SCIP main data structure (master problem)
- pricingprob : the pricing problem that should be solved
- solver : the pricing solver itself
- probnr : number of the pricing problem
- dualsolconv : dual solution of the corresponding convexity constraint
- lowerbound : pointer to store lower bound of pricing problem
- status : pointer to store the pricing status
Definition at line 133 of file type_solver.h.
Typedef Documentation
◆ GCG_SOLVERDATA
typedef struct GCG_SolverData GCG_SOLVERDATA |
solver data
Definition at line 49 of file type_solver.h.
◆ GCG_SOLVER
typedef struct GCG_Solver GCG_SOLVER |
the solver
Definition at line 50 of file type_solver.h.