1 /****************************************** 2 Copyright (c) 2016, Mate Soos 3 4 Permission is hereby granted, free of charge, to any person obtaining a copy 5 of this software and associated documentation files (the "Software"), to deal 6 in the Software without restriction, including without limitation the rights 7 to use, copy, modify, merge, publish, distribute, sublicense, and/or sell 8 copies of the Software, and to permit persons to whom the Software is 9 furnished to do so, subject to the following conditions: 10 11 The above copyright notice and this permission notice shall be included in 12 all copies or substantial portions of the Software. 13 14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 17 AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 18 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, 19 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 20 THE SOFTWARE. 21 ***********************************************/ 22 23 #ifndef _TOPLEVELGAUSS_H_ 24 #define _TOPLEVELGAUSS_H_ 25 26 #include "xor.h" 27 #include "toplevelgaussabst.h" 28 #include <vector> 29 #include <set> 30 using std::vector; 31 using std::set; 32 33 namespace CMSat { 34 35 class Solver; 36 37 class TopLevelGauss: public TopLevelGaussAbst 38 { 39 public: 40 explicit TopLevelGauss(Solver* _solver); 41 bool toplevelgauss(const vector<Xor>& _xors, vector<Lit>* _out_changed_occur) override; 42 43 struct Stats 44 { clearStats45 void clear() 46 { 47 Stats tmp; 48 *this = tmp; 49 } 50 total_timeStats51 double total_time() const 52 { 53 return extractTime + blockCutTime; 54 } 55 56 Stats& operator+=(const Stats& other); 57 void print_short(const Solver* solver) const; 58 59 //Time 60 uint32_t numCalls = 0; 61 double extractTime = 0.0; 62 double blockCutTime = 0.0; 63 64 //XOR stats 65 uint64_t numVarsInBlocks = 0; 66 uint64_t numBlocks = 0; 67 68 //Usefulness stats 69 uint64_t time_outs = 0; 70 uint64_t newUnits = 0; 71 uint64_t newBins = 0; 72 73 size_t zeroDepthAssigns = 0; 74 }; 75 76 Stats runStats; 77 Stats globalStats; 78 size_t mem_used() const override; 79 80 private: 81 Solver* solver; 82 vector<Lit>* out_changed_occur; // may have changed the occur count of these literals 83 84 bool extractInfo(); 85 void cutIntoBlocks(const vector<size_t>& xorsToUse); 86 bool extractInfoFromBlock(const vector<uint32_t>& block, const size_t blockNum); 87 void move_xors_into_blocks(); 88 89 //Major calculated data and indexes to this data 90 vector<vector<uint32_t> > blocks; ///<Blocks of vars that are in groups of XORs 91 vector<uint32_t> varToBlock; ///<variable-> block index map 92 93 //Temporaries for putting xors into matrix, and extracting info from matrix 94 vector<uint32_t> outerToInterVarMap; 95 vector<uint32_t> interToOUterVarMap; 96 97 vector<Xor> xors; 98 vector<vector<uint32_t> > xors_in_blocks; 99 }; 100 101 } 102 103 #endif // _TOPLEVELGAUSS_H_ 104