/**************************************************************************************[ParallelSolver.h] Glucose -- Copyright (c) 2009-2014, Gilles Audemard, Laurent Simon CRIL - Univ. Artois, France LRI - Univ. Paris Sud, France (2009-2013) Labri - Univ. Bordeaux, France Syrup (Glucose Parallel) -- Copyright (c) 2013-2014, Gilles Audemard, Laurent Simon CRIL - Univ. Artois, France Labri - Univ. Bordeaux, France Glucose sources are based on MiniSat (see below MiniSat copyrights). Permissions and copyrights of Glucose (sources until 2013, Glucose 3.0, single core) are exactly the same as Minisat on which it is based on. (see below). Glucose-Syrup sources are based on another copyright. Permissions and copyrights for the parallel version of Glucose-Syrup (the "Software") are granted, free of charge, to deal with the Software without restriction, including the rights to use, copy, modify, merge, publish, distribute, sublicence, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: - The above and below copyrights notices and this permission notice shall be included in all copies or substantial portions of the Software; - The parallel version of Glucose (all files modified since Glucose 3.0 releases, 2013) cannot be used in any competitive event (sat competitions/evaluations) without the express permission of the authors (Gilles Audemard / Laurent Simon). This is also the case for any competitive event using Glucose Parallel as an embedded SAT engine (single core or not). --------------- Original Minisat Copyrights Copyright (c) 2003-2006, Niklas Een, Niklas Sorensson Copyright (c) 2007-2010, Niklas Sorensson Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. **************************************************************************************************/ #ifndef PARALLELSOLVER_H #define PARALLELSOLVER_H #include "core/SolverTypes.h" #include "core/Solver.h" #include "simp/SimpSolver.h" #include "parallel/SharedCompanion.h" namespace Glucose { enum ParallelStats{ nbexported=coreStatsSize, nbimported, nbexportedunit, nbimportedunit, nbimportedInPurgatory, nbImportedGoodClauses } ; #define parallelStatsSize (coreStatsSize + 6) //================================================================================================= //class MultiSolvers; //class SolverCompanion; // class MultiSolvers; class ParallelSolver : public SimpSolver { friend class MultiSolvers; friend class SolverCompanion; friend class SharedCompanion; // friend class ReasoningCompanion; // friend class SolverConfiguration; protected : // Multithread : int thn; // internal thread number //MultiSolvers* belongsto; // Not working (due to incomplete types) SharedCompanion *sharedcomp; bool coreFUIP; // true if one core is specialized for branching on all FUIP bool ImTheSolverFUIP; pthread_mutex_t *pmfinished; // mutex on which main process may wait for... As soon as one process finishes it release the mutex pthread_cond_t *pcfinished; // condition variable that says that a thread as finished public: // Constructor/Destructor: // ParallelSolver(int threadId); ParallelSolver(const ParallelSolver &s); ~ParallelSolver(); /** * Clone function */ virtual Clone* clone() const { return new ParallelSolver(*this); } int threadNumber () const; void setThreadNumber (int i); void reportProgress(); void reportProgressArrayImports(vec &totalColumns); virtual void reduceDB(); virtual lbool solve_ (bool do_simp = true, bool turn_off_simp = false); vec importedClause; // Temporary clause used to copy each imported clause unsigned int goodlimitlbd; // LBD score of the "good" clauses, locally int goodlimitsize; bool purgatory; // mode of operation bool shareAfterProbation; // Share any none glue clause only after probation (seen 2 times in conflict analysis) bool plingeling; // plingeling strategy for sharing clauses (experimental) int nbTimesSeenBeforeExport; // Stats front end // uint64_t getNbExported() { return nbexported;} // uint64_t getNbImported() { return nbimported;} // uint64_t getNbExportedUnit() {return nbexportedunit;} uint32_t firstSharing, limitSharingByGoodLBD, limitSharingByFixedLimitLBD, limitSharingByFixedLimitSize; uint32_t probationByFollowingRoads, probationByFriend; uint32_t survivorLayers; // Number of layers for a common clause to survive bool dontExportDirectReusedClauses ; // When true, directly reused clauses are not exported uint64_t nbNotExportedBecauseDirectlyReused; vec goodImportsFromThreads; // Stats of good importations from other threads virtual void parallelImportClauseDuringConflictAnalysis(Clause &c,CRef confl); virtual bool parallelImportClauses(); // true if the empty clause was received virtual void parallelImportUnaryClauses(); virtual void parallelExportUnaryClause(Lit p); virtual void parallelExportClauseDuringSearch(Clause &c); virtual bool parallelJobIsFinished(); virtual bool panicModeIsEnabled(); bool shareClause(Clause & c); // true if the clause was succesfully sent }; inline int ParallelSolver::threadNumber () const {return thn;} inline void ParallelSolver::setThreadNumber (int i) {thn = i;} } #endif /* PARALLELSOLVER_H */