Scippy

SCIP

Solving Constraint Integer Programs

primal.h
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2 /* */
3 /* This file is part of the program and library */
4 /* SCIP --- Solving Constraint Integer Programs */
5 /* */
6 /* Copyright (c) 2002-2023 Zuse Institute Berlin (ZIB) */
7 /* */
8 /* Licensed under the Apache License, Version 2.0 (the "License"); */
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21 /* along with SCIP; see the file LICENSE. If not visit scipopt.org. */
22 /* */
23 /* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
24 
25 /**@file primal.h
26  * @ingroup INTERNALAPI
27  * @brief internal methods for collecting primal CIP solutions and primal informations
28  * @author Tobias Achterberg
29  */
30 
31 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
32 
33 #ifndef __SCIP_PRIMAL_H__
34 #define __SCIP_PRIMAL_H__
35 
36 
37 #include "scip/def.h"
38 #include "blockmemshell/memory.h"
39 #include "scip/type_retcode.h"
40 #include "scip/type_set.h"
41 #include "scip/type_event.h"
42 #include "scip/type_lp.h"
43 #include "scip/type_var.h"
44 #include "scip/type_prob.h"
45 #include "scip/type_sol.h"
46 #include "scip/type_primal.h"
47 #include "scip/type_tree.h"
48 #include "scip/type_reopt.h"
49 #include "scip/type_heur.h"
50 
51 #include "scip/struct_primal.h"
52 
53 #ifdef __cplusplus
54 extern "C" {
55 #endif
56 
57 /** creates primal data */
59  SCIP_PRIMAL** primal /**< pointer to primal data */
60  );
61 
62 /** frees primal data */
64  SCIP_PRIMAL** primal, /**< pointer to primal data */
65  BMS_BLKMEM* blkmem /**< block memory */
66  );
67 
68 /** clears primal data */
70  SCIP_PRIMAL** primal, /**< pointer to primal data */
71  BMS_BLKMEM* blkmem /**< block memory */
72  );
73 
74 /** sets the cutoff bound in primal data and in LP solver */
76  SCIP_PRIMAL* primal, /**< primal data */
77  BMS_BLKMEM* blkmem, /**< block memory */
78  SCIP_SET* set, /**< global SCIP settings */
79  SCIP_STAT* stat, /**< problem statistics data */
80  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
81  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
82  SCIP_PROB* transprob, /**< tranformed problem data */
83  SCIP_PROB* origprob, /**< original problem data */
84  SCIP_TREE* tree, /**< branch and bound tree */
85  SCIP_REOPT* reopt, /**< reoptimization data structure */
86  SCIP_LP* lp, /**< current LP data */
87  SCIP_Real cutoffbound, /**< new cutoff bound */
88  SCIP_Bool useforobjlimit /**< should the cutoff bound be used to update the objective limit, if
89  * better? */
90  );
91 
92 /** sets upper bound in primal data and in LP solver */
94  SCIP_PRIMAL* primal, /**< primal data */
95  BMS_BLKMEM* blkmem, /**< block memory */
96  SCIP_SET* set, /**< global SCIP settings */
97  SCIP_STAT* stat, /**< problem statistics data */
98  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
99  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
100  SCIP_PROB* prob, /**< transformed problem after presolve */
101  SCIP_TREE* tree, /**< branch and bound tree */
102  SCIP_REOPT* reopt, /**< reoptimization data structure */
103  SCIP_LP* lp, /**< current LP data */
104  SCIP_Real upperbound /**< new upper bound */
105  );
106 
107 /** updates upper bound and cutoff bound in primal data after a tightening of the problem's objective limit */
109  SCIP_PRIMAL* primal, /**< primal data */
110  BMS_BLKMEM* blkmem, /**< block memory */
111  SCIP_SET* set, /**< global SCIP settings */
112  SCIP_STAT* stat, /**< problem statistics data */
113  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
114  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
115  SCIP_PROB* transprob, /**< tranformed problem data */
116  SCIP_PROB* origprob, /**< original problem data */
117  SCIP_TREE* tree, /**< branch and bound tree */
118  SCIP_REOPT* reopt, /**< reoptimization data structure */
119  SCIP_LP* lp /**< current LP data */
120  );
121 
122 /** recalculates upper bound and cutoff bound in primal data after a change of the problem's objective offset */
124  SCIP_PRIMAL* primal, /**< primal data */
125  BMS_BLKMEM* blkmem, /**< block memory */
126  SCIP_SET* set, /**< global SCIP settings */
127  SCIP_STAT* stat, /**< problem statistics data */
128  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
129  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
130  SCIP_PROB* transprob, /**< tranformed problem data */
131  SCIP_PROB* origprob, /**< original problem data */
132  SCIP_TREE* tree, /**< branch and bound tree */
133  SCIP_REOPT* reopt, /**< reoptimization data structure */
134  SCIP_LP* lp /**< current LP data */
135  );
136 
137 /** adds additional objective offset in origanal space to all existing solution (in original space) */
139  SCIP_PRIMAL* primal, /**< primal data */
140  SCIP_SET* set, /**< global SCIP settings */
141  SCIP_Real addval /**< additional objective offset in original space */
142  );
143 
144 /** returns whether the current primal bound is justified with a feasible primal solution; if not, the primal bound
145  * was set from the user as objective limit
146  */
148  SCIP_PRIMAL* primal, /**< primal data */
149  SCIP_SET* set, /**< global SCIP settings */
150  SCIP_PROB* transprob, /**< tranformed problem data */
151  SCIP_PROB* origprob /**< original problem data */
152  );
153 
154 /** returns the primal ray thats proves unboundedness */
156  SCIP_PRIMAL* primal /**< primal data */
157  );
158 
159 /** update the primal ray thats proves unboundedness */
161  SCIP_PRIMAL* primal, /**< primal data */
162  SCIP_SET* set, /**< global SCIP settings */
163  SCIP_STAT* stat, /**< dynamic SCIP statistics */
164  SCIP_SOL* primalray, /**< the new primal ray */
165  BMS_BLKMEM* blkmem /**< block memory */
166  );
167 
168 /** adds primal solution to solution storage by copying it */
170  SCIP_PRIMAL* primal, /**< primal data */
171  BMS_BLKMEM* blkmem, /**< block memory */
172  SCIP_SET* set, /**< global SCIP settings */
173  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
174  SCIP_STAT* stat, /**< problem statistics data */
175  SCIP_PROB* origprob, /**< original problem */
176  SCIP_PROB* transprob, /**< transformed problem after presolve */
177  SCIP_TREE* tree, /**< branch and bound tree */
178  SCIP_REOPT* reopt, /**< reoptimization data structure */
179  SCIP_LP* lp, /**< current LP data */
180  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
181  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
182  SCIP_SOL* sol, /**< primal CIP solution */
183  SCIP_Bool* stored /**< stores whether given solution was good enough to keep */
184  );
185 
186 /** adds primal solution to solution storage, frees the solution afterwards */
188  SCIP_PRIMAL* primal, /**< primal data */
189  BMS_BLKMEM* blkmem, /**< block memory */
190  SCIP_SET* set, /**< global SCIP settings */
191  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
192  SCIP_STAT* stat, /**< problem statistics data */
193  SCIP_PROB* origprob, /**< original problem */
194  SCIP_PROB* transprob, /**< transformed problem after presolve */
195  SCIP_TREE* tree, /**< branch and bound tree */
196  SCIP_REOPT* reopt, /**< reoptimization data structure */
197  SCIP_LP* lp, /**< current LP data */
198  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
199  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
200  SCIP_SOL** sol, /**< pointer to primal CIP solution; is cleared in function call */
201  SCIP_Bool* stored /**< stores whether given solution was good enough to keep */
202  );
203 
204 /** adds primal solution to solution candidate storage of original problem space */
206  SCIP_PRIMAL* primal, /**< primal data */
207  BMS_BLKMEM* blkmem, /**< block memory */
208  SCIP_SET* set, /**< global SCIP settings */
209  SCIP_STAT* stat, /**< problem statistics data */
210  SCIP_PROB* prob, /**< original problem data */
211  SCIP_SOL* sol, /**< primal CIP solution; is cleared in function call */
212  SCIP_Bool* stored /**< stores whether given solution was good enough to keep */
213  );
214 
215 /** adds primal solution to solution candidate storage of original problem space, frees the solution afterwards */
217  SCIP_PRIMAL* primal, /**< primal data */
218  BMS_BLKMEM* blkmem, /**< block memory */
219  SCIP_SET* set, /**< global SCIP settings */
220  SCIP_STAT* stat, /**< problem statistics data */
221  SCIP_PROB* prob, /**< original problem data */
222  SCIP_SOL** sol, /**< pointer to primal CIP solution; is cleared in function call */
223  SCIP_Bool* stored /**< stores whether given solution was good enough to keep */
224  );
225 
226 /** adds current LP/pseudo solution to solution storage */
228  SCIP_PRIMAL* primal, /**< primal data */
229  BMS_BLKMEM* blkmem, /**< block memory */
230  SCIP_SET* set, /**< global SCIP settings */
231  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
232  SCIP_STAT* stat, /**< problem statistics data */
233  SCIP_PROB* origprob, /**< original problem */
234  SCIP_PROB* transprob, /**< transformed problem after presolve */
235  SCIP_TREE* tree, /**< branch and bound tree */
236  SCIP_REOPT* reopt, /**< reoptimization data structure */
237  SCIP_LP* lp, /**< current LP data */
238  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
239  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
240  SCIP_HEUR* heur, /**< heuristic that found the solution (or NULL if it's from the tree) */
241  SCIP_Bool* stored /**< stores whether given solution was good enough to keep */
242  );
243 
244 /** checks primal solution; if feasible, adds it to storage by copying it */
246  SCIP_PRIMAL* primal, /**< primal data */
247  BMS_BLKMEM* blkmem, /**< block memory */
248  SCIP_SET* set, /**< global SCIP settings */
249  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
250  SCIP_STAT* stat, /**< problem statistics data */
251  SCIP_PROB* origprob, /**< original problem */
252  SCIP_PROB* transprob, /**< transformed problem after presolve */
253  SCIP_TREE* tree, /**< branch and bound tree */
254  SCIP_REOPT* reopt, /**< reoptimization data structure */
255  SCIP_LP* lp, /**< current LP data */
256  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
257  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
258  SCIP_SOL* sol, /**< primal CIP solution */
259  SCIP_Bool printreason, /**< Should all reasons of violations be printed? */
260  SCIP_Bool completely, /**< Should all violations be checked? */
261  SCIP_Bool checkbounds, /**< Should the bounds of the variables be checked? */
262  SCIP_Bool checkintegrality, /**< Has integrality to be checked? */
263  SCIP_Bool checklprows, /**< Do constraints represented by rows in the current LP have to be checked? */
264  SCIP_Bool* stored /**< stores whether given solution was feasible and good enough to keep */
265  );
266 
267 /** checks primal solution; if feasible, adds it to storage; solution is freed afterwards */
269  SCIP_PRIMAL* primal, /**< primal data */
270  BMS_BLKMEM* blkmem, /**< block memory */
271  SCIP_SET* set, /**< global SCIP settings */
272  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
273  SCIP_STAT* stat, /**< problem statistics data */
274  SCIP_PROB* origprob, /**< original problem */
275  SCIP_PROB* transprob, /**< transformed problem after presolve */
276  SCIP_TREE* tree, /**< branch and bound tree */
277  SCIP_REOPT* reopt, /**< reoptimization data structure */
278  SCIP_LP* lp, /**< current LP data */
279  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
280  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
281  SCIP_SOL** sol, /**< pointer to primal CIP solution; is cleared in function call */
282  SCIP_Bool printreason, /**< Should all reasons of violations be printed? */
283  SCIP_Bool completely, /**< Should all violations be checked? */
284  SCIP_Bool checkbounds, /**< Should the bounds of the variables be checked? */
285  SCIP_Bool checkintegrality, /**< Has integrality to be checked? */
286  SCIP_Bool checklprows, /**< Do constraints represented by rows in the current LP have to be checked? */
287  SCIP_Bool* stored /**< stores whether solution was feasible and good enough to keep */
288  );
289 
290 /** checks current LP/pseudo solution; if feasible, adds it to storage */
292  SCIP_PRIMAL* primal, /**< primal data */
293  BMS_BLKMEM* blkmem, /**< block memory */
294  SCIP_SET* set, /**< global SCIP settings */
295  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
296  SCIP_STAT* stat, /**< problem statistics data */
297  SCIP_PROB* origprob, /**< original problem */
298  SCIP_PROB* transprob, /**< transformed problem after presolve */
299  SCIP_TREE* tree, /**< branch and bound tree */
300  SCIP_REOPT* reopt, /**< reoptimization data structure */
301  SCIP_LP* lp, /**< current LP data */
302  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
303  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
304  SCIP_HEUR* heur, /**< heuristic that found the solution (or NULL if it's from the tree) */
305  SCIP_Bool printreason, /**< Should all reasons of violations be printed? */
306  SCIP_Bool completely, /**< Should all violations be checked? */
307  SCIP_Bool checkintegrality, /**< Has integrality to be checked? */
308  SCIP_Bool checklprows, /**< Do constraints represented by rows in the current LP have to be checked? */
309  SCIP_Bool* stored /**< stores whether given solution was good enough to keep */
310  );
311 
312 /** inserts solution into the global array of all existing primal solutions */
314  SCIP_PRIMAL* primal, /**< primal data */
315  SCIP_SET* set, /**< global SCIP settings */
316  SCIP_SOL* sol /**< primal CIP solution */
317  );
318 
319 /** removes solution from the global array of all existing primal solutions */
320 void SCIPprimalSolFreed(
321  SCIP_PRIMAL* primal, /**< primal data */
322  SCIP_SOL* sol /**< primal CIP solution */
323  );
324 
325 /** updates all existing primal solutions after a change in a variable's objective value */
327  SCIP_PRIMAL* primal, /**< primal data */
328  SCIP_VAR* var, /**< problem variable */
329  SCIP_Real oldobj, /**< old objective value */
330  SCIP_Real newobj /**< new objective value */
331  );
332 
333 /** retransforms all existing solutions to original problem space
334  *
335  * @note as a side effect, the objective value of the solutions can change (numerical errors)
336  * so we update the objective cutoff value and upper bound accordingly
337  */
339  SCIP_PRIMAL* primal, /**< primal data */
340  BMS_BLKMEM* blkmem, /**< block memory */
341  SCIP_SET* set, /**< global SCIP settings */
342  SCIP_STAT* stat, /**< problem statistics data */
343  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
344  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
345  SCIP_PROB* origprob, /**< original problem */
346  SCIP_PROB* transprob, /**< transformed problem */
347  SCIP_TREE* tree, /**< branch and bound tree */
348  SCIP_REOPT* reopt, /**< reoptimization data structure */
349  SCIP_LP* lp /**< current LP data */
350  );
351 
352 /** tries to transform original solution to the transformed problem space */
354  SCIP_PRIMAL* primal, /**< primal data */
355  SCIP_SOL* sol, /**< primal solution */
356  BMS_BLKMEM* blkmem, /**< block memory */
357  SCIP_SET* set, /**< global SCIP settings */
358  SCIP_MESSAGEHDLR* messagehdlr, /**< message handler */
359  SCIP_STAT* stat, /**< problem statistics data */
360  SCIP_PROB* origprob, /**< original problem */
361  SCIP_PROB* transprob, /**< transformed problem after presolve */
362  SCIP_TREE* tree, /**< branch and bound tree */
363  SCIP_REOPT* reopt, /**< reoptimization data structure */
364  SCIP_LP* lp, /**< current LP data */
365  SCIP_EVENTQUEUE* eventqueue, /**< event queue */
366  SCIP_EVENTFILTER* eventfilter, /**< event filter for global (not variable dependent) events */
367  SCIP_Real* solvals, /**< array for internal use to store solution values, or NULL;
368  * if the method is called multiple times in a row, an array with size >=
369  * number of active variables should be given for performance reasons */
370  SCIP_Bool* solvalset, /**< array for internal use to store which solution values were set, or NULL;
371  * if the method is called multiple times in a row, an array with size >=
372  * number of active variables should be given for performance reasons */
373  int solvalssize, /**< size of solvals and solvalset arrays, should be >= number of active
374  * variables */
375  SCIP_Bool* added /**< pointer to store whether the solution was added */
376  );
377 
378 /** is the updating of violations enabled for this problem? */
380  SCIP_PRIMAL* primal /**< problem data */
381  );
382 
383 /** set whether the updating of violations is turned on */
385  SCIP_PRIMAL* primal, /**< problem data */
386  SCIP_Bool updateviolations /**< TRUE to enable violation updates, FALSE otherwise */
387  );
388 
389 #ifdef __cplusplus
390 }
391 #endif
392 
393 #endif
SCIP_RETCODE SCIPprimalClear(SCIP_PRIMAL **primal, BMS_BLKMEM *blkmem)
Definition: primal.c:203
SCIP_RETCODE SCIPprimalUpdateRay(SCIP_PRIMAL *primal, SCIP_SET *set, SCIP_STAT *stat, SCIP_SOL *primalray, BMS_BLKMEM *blkmem)
Definition: primal.c:601
SCIP_RETCODE SCIPprimalAddOrigSol(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *prob, SCIP_SOL *sol, SCIP_Bool *stored)
Definition: primal.c:1319
void SCIPprimalAddOrigObjoffset(SCIP_PRIMAL *primal, SCIP_SET *set, SCIP_Real addval)
Definition: primal.c:544
SCIP_RETCODE SCIPprimalTryCurrentSol(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, SCIP_STAT *stat, SCIP_PROB *origprob, SCIP_PROB *transprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_EVENTQUEUE *eventqueue, SCIP_EVENTFILTER *eventfilter, SCIP_HEUR *heur, SCIP_Bool printreason, SCIP_Bool completely, SCIP_Bool checkintegrality, SCIP_Bool checklprows, SCIP_Bool *stored)
Definition: primal.c:1632
SCIP_RETCODE SCIPprimalUpdateObjoffset(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_EVENTFILTER *eventfilter, SCIP_EVENTQUEUE *eventqueue, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp)
Definition: primal.c:488
enum SCIP_Retcode SCIP_RETCODE
Definition: type_retcode.h:63
SCIP_RETCODE SCIPprimalAddCurrentSol(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, SCIP_STAT *stat, SCIP_PROB *origprob, SCIP_PROB *transprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_EVENTQUEUE *eventqueue, SCIP_EVENTFILTER *eventfilter, SCIP_HEUR *heur, SCIP_Bool *stored)
Definition: primal.c:1458
type definitions for global SCIP settings
SCIP_RETCODE SCIPprimalTrySol(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, SCIP_STAT *stat, SCIP_PROB *origprob, SCIP_PROB *transprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_EVENTQUEUE *eventqueue, SCIP_EVENTFILTER *eventfilter, SCIP_SOL *sol, SCIP_Bool printreason, SCIP_Bool completely, SCIP_Bool checkbounds, SCIP_Bool checkintegrality, SCIP_Bool checklprows, SCIP_Bool *stored)
Definition: primal.c:1488
type definitions for return codes for SCIP methods
SCIP_SOL * SCIPprimalGetRay(SCIP_PRIMAL *primal)
Definition: primal.c:591
type definitions for collecting reoptimization information
type definitions for LP management
SCIP_RETCODE SCIPprimalUpdateObjlimit(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_EVENTFILTER *eventfilter, SCIP_EVENTQUEUE *eventqueue, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp)
Definition: primal.c:448
SCIP_RETCODE SCIPprimalSetCutoffbound(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_EVENTFILTER *eventfilter, SCIP_EVENTQUEUE *eventqueue, SCIP_PROB *transprob, SCIP_PROB *origprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_Real cutoffbound, SCIP_Bool useforobjlimit)
Definition: primal.c:307
type definitions for primal heuristics
SCIP_RETCODE SCIPprimalTrySolFree(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, SCIP_STAT *stat, SCIP_PROB *origprob, SCIP_PROB *transprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_EVENTQUEUE *eventqueue, SCIP_EVENTFILTER *eventfilter, SCIP_SOL **sol, SCIP_Bool printreason, SCIP_Bool completely, SCIP_Bool checkbounds, SCIP_Bool checkintegrality, SCIP_Bool checklprows, SCIP_Bool *stored)
Definition: primal.c:1558
SCIP_RETCODE SCIPprimalSetUpperbound(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_EVENTFILTER *eventfilter, SCIP_EVENTQUEUE *eventqueue, SCIP_PROB *prob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_Real upperbound)
Definition: primal.c:416
SCIP_RETCODE SCIPprimalSolCreated(SCIP_PRIMAL *primal, SCIP_SET *set, SCIP_SOL *sol)
Definition: primal.c:1667
type definitions for problem variables
type definitions for managing events
#define SCIP_Bool
Definition: def.h:93
void SCIPprimalSetUpdateViolations(SCIP_PRIMAL *primal, SCIP_Bool updateviolations)
Definition: primal.c:1976
type definitions for branch and bound tree
SCIP_Bool SCIPprimalUpdateViolations(SCIP_PRIMAL *primal)
Definition: primal.c:1966
SCIP_Bool SCIPprimalUpperboundIsSol(SCIP_PRIMAL *primal, SCIP_SET *set, SCIP_PROB *transprob, SCIP_PROB *origprob)
Definition: primal.c:578
type definitions for storing primal CIP solutions
type definitions for storing and manipulating the main problem
void SCIPprimalUpdateVarObj(SCIP_PRIMAL *primal, SCIP_VAR *var, SCIP_Real oldobj, SCIP_Real newobj)
Definition: primal.c:1719
SCIP_RETCODE SCIPprimalAddSol(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, SCIP_STAT *stat, SCIP_PROB *origprob, SCIP_PROB *transprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_EVENTQUEUE *eventqueue, SCIP_EVENTFILTER *eventfilter, SCIP_SOL *sol, SCIP_Bool *stored)
Definition: primal.c:1196
SCIP_RETCODE SCIPprimalRetransformSolutions(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_EVENTFILTER *eventfilter, SCIP_EVENTQUEUE *eventqueue, SCIP_PROB *origprob, SCIP_PROB *transprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp)
Definition: primal.c:1742
SCIP_RETCODE SCIPprimalTransformSol(SCIP_PRIMAL *primal, SCIP_SOL *sol, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, SCIP_STAT *stat, SCIP_PROB *origprob, SCIP_PROB *transprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_EVENTQUEUE *eventqueue, SCIP_EVENTFILTER *eventfilter, SCIP_Real *solvals, SCIP_Bool *solvalset, int solvalssize, SCIP_Bool *added)
Definition: primal.c:1791
#define SCIP_Real
Definition: def.h:186
SCIP_RETCODE SCIPprimalAddSolFree(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_MESSAGEHDLR *messagehdlr, SCIP_STAT *stat, SCIP_PROB *origprob, SCIP_PROB *transprob, SCIP_TREE *tree, SCIP_REOPT *reopt, SCIP_LP *lp, SCIP_EVENTQUEUE *eventqueue, SCIP_EVENTFILTER *eventfilter, SCIP_SOL **sol, SCIP_Bool *stored)
Definition: primal.c:1264
datastructures for collecting primal CIP solutions and primal informations
type definitions for collecting primal CIP solutions and primal informations
common defines and data types used in all packages of SCIP
SCIP_RETCODE SCIPprimalAddOrigSolFree(SCIP_PRIMAL *primal, BMS_BLKMEM *blkmem, SCIP_SET *set, SCIP_STAT *stat, SCIP_PROB *prob, SCIP_SOL **sol, SCIP_Bool *stored)
Definition: primal.c:1374
struct BMS_BlkMem BMS_BLKMEM
Definition: memory.h:439
void SCIPprimalSolFreed(SCIP_PRIMAL *primal, SCIP_SOL *sol)
Definition: primal.c:1689
SCIP_RETCODE SCIPprimalFree(SCIP_PRIMAL **primal, BMS_BLKMEM *blkmem)
Definition: primal.c:160
SCIP_RETCODE SCIPprimalCreate(SCIP_PRIMAL **primal)
Definition: primal.c:130
memory allocation routines