Scippy

SCIP

Solving Constraint Integer Programs

struct_pricestore.h
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2 /* */
3 /* This file is part of the program and library */
4 /* SCIP --- Solving Constraint Integer Programs */
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21 /* along with SCIP; see the file LICENSE. If not visit scipopt.org. */
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24 
25 /**@file struct_pricestore.h
26  * @ingroup INTERNALAPI
27  * @brief data structures for storing priced variables
28  * @author Tobias Achterberg
29  */
30 
31 /*---+----1----+----2----+----3----+----4----+----5----+----6----+----7----+----8----+----9----+----0----+----1----+----2*/
32 
33 #ifndef __SCIP_STRUCT_PRICESTORE_H__
34 #define __SCIP_STRUCT_PRICESTORE_H__
35 
36 
37 #include "scip/def.h"
38 #include "scip/type_clock.h"
39 #include "scip/type_var.h"
40 #include "scip/type_pricestore.h"
41 
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45 
46 /** storage for priced variables */
48 {
49  SCIP_CLOCK* probpricingtime; /**< time needed to price existing problem variables */
50  SCIP_VAR** vars; /**< array with priced variables with violated reduced costs sorted by score */
51  SCIP_Real* scores; /**< score for each priced variable (e.g. |redcost|/no. of nonzeros) */
52  SCIP_VAR** bdviolvars; /**< variables where zero violates the bounds */
53  SCIP_Real* bdviolvarslb; /**< lower bounds of bdviolvars */
54  SCIP_Real* bdviolvarsub; /**< upper bounds of bdbiolvars */
55  int varssize; /**< size of vars and score arrays */
56  int nvars; /**< number of priced variables (max. is set->price_maxvars) */
57  int bdviolvarssize; /**< size of bdviolvars, bdviolvarslb, and bdviolvarsub arrays */
58  int nbdviolvars; /**< number of variables, where zero violates the bounds */
59  int naddedbdviolvars; /**< number of bound violated variables already added to the LP */
60  int nprobpricings; /**< total number of calls to problem variable pricing */
61  int nprobvarsfound; /**< total number of problem variables, that were added (and possibly thrown away) */
62  int nvarsfound; /**< total number of variables, that were added (and possibly thrown away) */
63  int nvarsapplied; /**< total number of variables, that were added to the LP */
64  SCIP_Bool initiallp; /**< is the pricing storage currently being filled with the initial LP columns? */
65 };
66 
67 #ifdef __cplusplus
68 }
69 #endif
70 
71 #endif
type definitions for storing priced variables
SCIP_CLOCK * probpricingtime
type definitions for problem variables
#define SCIP_Bool
Definition: def.h:93
SCIP_Real * scores
SCIP_Real * bdviolvarslb
type definitions for clocks and timing issues
SCIP_VAR ** bdviolvars
#define SCIP_Real
Definition: def.h:186
SCIP_Real * bdviolvarsub
common defines and data types used in all packages of SCIP