hash table that resolves conflicts by probing
Macros | |
#define | SCIPhashSignature64(a) (UINT64_C(0x8000000000000000)>>((UINT32_C(0x9e3779b9) * ((uint32_t)(a)))>>26)) |
#define | SCIPhashTwo(a, b) ((uint32_t)((((uint32_t)(a) + 0xd37e9a1ce2148403ULL) * ((uint32_t)(b) + 0xe5fcc163aef32782ULL) )>>32)) |
#define | SCIPhashThree(a, b, c) |
#define | SCIPhashFour(a, b, c, d) |
#define | SCIPhashFive(a, b, c, d, e) |
#define | SCIPhashSix(a, b, c, d, e, f) |
#define | SCIPhashSeven(a, b, c, d, e, f, g) |
#define SCIPhashSignature64 | ( | a | ) | (UINT64_C(0x8000000000000000)>>((UINT32_C(0x9e3779b9) * ((uint32_t)(a)))>>26)) |
Definition at line 549 of file pub_misc.h.
Referenced by addCoef(), calcSignature(), consdataGetSignature(), consdataUpdateSignatures(), SCIP_DECL_HASHKEYVAL(), and SCIP_DECL_HASHKEYVAL().
#define SCIPhashTwo | ( | a, | |
b ) ((uint32_t)((((uint32_t)(a) + 0xd37e9a1ce2148403ULL) * ((uint32_t)(b) + 0xe5fcc163aef32782ULL) )>>32)) |
Definition at line 551 of file pub_misc.h.
Referenced by hashIndexPair(), hashIndexPair(), SCIP_DECL_HASHKEYVAL(), SCIP_DECL_HASHKEYVAL(), and SCIPrandomSetSeed().
Definition at line 553 of file pub_misc.h.
Referenced by SCIP_DECL_HASHKEYVAL(), and SCIP_DECL_HASHKEYVAL().
Definition at line 556 of file pub_misc.h.
Referenced by SCIP_DECL_HASHKEYVAL(), SCIP_DECL_HASHKEYVAL(), SCIP_DECL_HASHKEYVAL(), SCIP_DECL_HASHKEYVAL(), SCIP_DECL_HASHKEYVAL(), SCIP_DECL_HASHKEYVAL(), SCIP_DECL_HASHKEYVAL(), SCIP_DECL_HASHKEYVAL(), and SCIP_DECL_HASHKEYVAL().
Definition at line 563 of file pub_misc.h.
Referenced by SCIP_DECL_HASHKEYVAL().
Definition at line 567 of file pub_misc.h.
Referenced by SCIP_DECL_HASHKEYVAL().
computes a hashcode for double precision floating point values containing 15 significant bits, the sign and the exponent
Definition at line 576 of file pub_misc.h.
Referenced by SCIP_DECL_HASHKEYVAL(), SCIP_DECL_HASHKEYVAL(), SCIP_DECL_HASHKEYVAL(), SCIP_DECL_HASHKEYVAL(), and SCIP_DECL_HASHKEYVAL().
SCIP_RETCODE SCIPhashtableCreate | ( | SCIP_HASHTABLE ** | hashtable, |
BMS_BLKMEM * | blkmem, | ||
int | tablesize, | ||
SCIP_DECL_HASHGETKEY((*hashgetkey)) | , | ||
SCIP_DECL_HASHKEYEQ((*hashkeyeq)) | , | ||
SCIP_DECL_HASHKEYVAL((*hashkeyval)) | , | ||
void * | userptr ) |
creates a hash table
hashtable | pointer to store the created hash table |
blkmem | block memory used to store hash table entries |
tablesize | size of the hash table |
userptr | user pointer |
Definition at line 2296 of file misc.c.
References assert(), BMSallocBlockMemory, BMSallocBlockMemoryArray, BMSallocClearBlockMemoryArray, i, LOG2, MAX, NULL, SCIP_ALLOC, and SCIP_OKAY.
Referenced by addOrbitope(), bilinearTermsInsertEntry(), checkConsnames(), collectBranchingCands(), copyConsPseudoboolean(), detectHiddenProducts(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), findCumulativeConss(), inithashmapandtable(), mod2matrixPreprocessColumns(), mod2matrixPreprocessRows(), nodepairqueueCreate(), presoldataInitHashtables(), propdataInit(), SCIP_DECL_EVENTINITSOL(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEURINIT(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_READERREAD(), SCIP_DECL_READERWRITE(), SCIPcliquetableCreate(), SCIPcutpoolCreate(), SCIPparamsetCreate(), SCIPprobCreate(), SCIPvariableGraphCreate(), SCIPvisualizeConsCumulative(), SCIPwriteLp(), SCIPwriteMps(), SCIPwritePip(), and writeOpb().
void SCIPhashtableFree | ( | SCIP_HASHTABLE ** | hashtable | ) |
frees the hash table
hashtable | pointer to the hash table |
Definition at line 2346 of file misc.c.
References assert(), BMSfreeBlockMemory, BMSfreeBlockMemoryArray, i, MAX, NULL, and SCIPdebugMessage.
Referenced by bilinearTermsFree(), checkConsnames(), collectBranchingCands(), conshdlrdataFree(), copyConsPseudoboolean(), detectHiddenProducts(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), findCumulativeConss(), freeOrbitope(), freeShadowTree(), mod2matrixPreprocessColumns(), mod2matrixPreprocessRows(), nodepairqueueCreate(), propdataExit(), propdataInit(), SCIP_DECL_HEUREXEC(), SCIP_DECL_HEUREXIT(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLFREE(), SCIP_DECL_READERREAD(), SCIP_DECL_READERWRITE(), SCIPcliquetableFree(), SCIPcutpoolFree(), SCIPparamsetFree(), SCIPprobFree(), SCIPvariableGraphFree(), SCIPvisualizeConsCumulative(), SCIPwriteLp(), SCIPwriteMps(), SCIPwritePip(), and writeOpb().
void SCIPhashtableClear | ( | SCIP_HASHTABLE * | hashtable | ) |
removes all elements of the hash table
removes all elements of the hash table
hashtable | hash table |
Definition at line 2398 of file misc.c.
References SCIPhashtableRemoveAll().
SCIP_RETCODE SCIPhashtableInsert | ( | SCIP_HASHTABLE * | hashtable, |
void * | element ) |
inserts element in hash table (multiple inserts of same element override the previous entry)
inserts element in hash table
hashtable | hash table |
element | element to insert into the table |
Definition at line 2547 of file misc.c.
References assert(), SCIP_HashTable::hashes, hashtableCheckLoad(), hashtableInsert(), hashvalue(), i, SCIP_HashTable::mask, NULL, SCIP_CALL, SCIP_HashTable::slots, TRUE, and SCIP_HashTable::userptr.
Referenced by addConflictBinvar(), bilinearTermsInsertEntry(), checkConsnames(), cleanupHashDatas(), collectAggregatedVars(), collectAggregatedVars(), collectAggregatedVars(), collectBranchingCands(), collectMinactImplicVars(), copyConsPseudoboolean(), correctPresoldata(), createAndAddAndCons(), createConstantAssignment(), createPresoldata(), createVariable(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), determineVariableFixings(), fillRelationTables(), findCumulativeConss(), getConflictImplics(), mod2matrixPreprocessColumns(), mod2matrixPreprocessRows(), nodepairqueueCreate(), retrieveParallelConstraints(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_EVENTINITSOL(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_READERWRITE(), SCIPcliquetableAdd(), SCIPcliquetableCleanup(), SCIPcreateConsPseudobooleanWithConss(), SCIPcutpoolAddNewRow(), SCIPprobAddConsName(), SCIPprobAddVarName(), SCIPvariablegraphBreadthFirst(), SCIPvisualizeConsCumulative(), SCIPwriteMps(), selectSolsRandomized(), setupAndSolveSubscipCrossover(), writeOpbFixedVars(), and writeOpbRelevantAnds().
SCIP_RETCODE SCIPhashtableSafeInsert | ( | SCIP_HASHTABLE * | hashtable, |
void * | element ) |
inserts element in hash table (multiple insertion of same element is checked and results in an error)
inserts element in hash table
hashtable | hash table |
element | element to insert into the table |
Definition at line 2579 of file misc.c.
References assert(), FALSE, SCIP_HashTable::hashes, hashtableCheckLoad(), hashtableInsert(), hashvalue(), i, SCIP_HashTable::mask, NULL, SCIP_CALL, SCIP_HashTable::slots, and SCIP_HashTable::userptr.
Referenced by paramsetAdd(), retrieveParallelConstraints(), SCIP_DECL_EVENTEXEC(), and SCIP_DECL_HEUREXEC().
void * SCIPhashtableRetrieve | ( | SCIP_HASHTABLE * | hashtable, |
void * | key ) |
retrieve element with key from hash table, returns NULL if not existing
hashtable | hash table |
key | key to retrieve |
Definition at line 2608 of file misc.c.
References assert(), ELEM_DISTANCE, SCIP_HashTable::hashes, hashvalue(), i, SCIP_HashTable::mask, NULL, SCIP_HashTable::shift, SCIP_HashTable::slots, TRUE, and SCIP_HashTable::userptr.
Referenced by applyVariableAssignment(), cancelCol(), cancelRow(), checkConsnames(), consdataFree(), CREATE_CONSTRAINT(), createAndAddAndCons(), createConstantAssignment(), createLinking(), createVariable(), detectProductsUnconditional(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), detectRedundantConstraints(), extractGates(), fillRelationTables(), getRowOrder(), mod2matrixPreprocessColumns(), mod2matrixPreprocessRows(), nodepairqueueCreate(), paramSetBool(), paramSetChar(), paramSetInt(), paramSetLongint(), paramSetReal(), paramsetSetHeuristicsAggressive(), paramsetSetHeuristicsFast(), paramsetSetPresolvingAggressive(), paramsetSetPresolvingFast(), paramsetSetSeparatingAggressive(), paramsetSetSeparatingDefault(), parseAggregation(), parseArrayIndex(), parseConstraint(), parseQuadratic(), parseSolveItem(), parseValue(), parseVariableArrayAssignment(), populateRootedPathColumnOrder(), retrieveParallelConstraints(), scalePenalties(), SCIP_DECL_HEUREXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLEXEC(), SCIPcliquetableAdd(), SCIPcliquetableCleanup(), SCIPcreateConsPseudobooleanWithConss(), SCIPcutpoolAddRow(), SCIPcutpoolDelRow(), SCIPcutpoolIsCutNew(), SCIPgetBilinTermIdxNonlinear(), SCIPhashtableExists(), SCIPparamsetCopyParams(), SCIPparamsetFix(), SCIPparamsetGetBool(), SCIPparamsetGetChar(), SCIPparamsetGetInt(), SCIPparamsetGetLongint(), SCIPparamsetGetParam(), SCIPparamsetGetReal(), SCIPparamsetGetString(), SCIPparamsetIsFixed(), SCIPparamsetSet(), SCIPparamsetSetBool(), SCIPparamsetSetChar(), SCIPparamsetSetDefaultBool(), SCIPparamsetSetDefaultChar(), SCIPparamsetSetDefaultInt(), SCIPparamsetSetDefaultLongint(), SCIPparamsetSetDefaultReal(), SCIPparamsetSetDefaultString(), SCIPparamsetSetEmphasis(), SCIPparamsetSetInt(), SCIPparamsetSetLongint(), SCIPparamsetSetReal(), SCIPparamsetSetString(), SCIPparamsetSetToDefault(), SCIPprobFindCons(), SCIPprobFindVar(), SCIPprobRemoveConsName(), SCIPshadowTreeGetShadowNodeFromNodeNumber(), and transformToOrig().
SCIP_Bool SCIPhashtableExists | ( | SCIP_HASHTABLE * | hashtable, |
void * | element ) |
returns whether the given element exists in the table
hashtable | hash table |
element | element to search in the table |
Definition at line 2659 of file misc.c.
References assert(), SCIP_HashTable::hashes, SCIP_HashTable::mask, NULL, SCIPhashtableRetrieve(), SCIP_HashTable::slots, and SCIP_HashTable::userptr.
Referenced by addConflictBinvar(), cleanupHashDatas(), collectAggregatedVars(), collectAggregatedVars(), collectAggregatedVars(), collectBranchingCands(), collectMinactImplicVars(), consdataFree(), copyConsPseudoboolean(), correctConshdlrdata(), correctPresoldata(), cutpoolDelCut(), determineVariableFixings(), findCumulativeConss(), getConflictImplics(), mod2matrixPreprocessRows(), printBoundSection(), printColumnSection(), resolvePropagation(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_PRESOLEXIT(), SCIP_DECL_READERWRITE(), SCIPcutpoolAddNewRow(), SCIPprobRemoveVarName(), SCIPvariablegraphBreadthFirst(), SCIPvisualizeConsCumulative(), SCIPwriteMps(), selectSolsRandomized(), transformToOrig(), updateConsanddataUses(), and writeOpbFixedVars().
SCIP_RETCODE SCIPhashtableRemove | ( | SCIP_HASHTABLE * | hashtable, |
void * | element ) |
removes element from the hash table, if it exists
hashtable | hash table |
element | element to remove from the table |
Definition at line 2677 of file misc.c.
References assert(), ELEM_DISTANCE, SCIP_HashTable::hashes, hashvalue(), i, SCIP_HashTable::mask, SCIP_HashTable::nelements, NULL, SCIP_OKAY, SCIP_HashTable::shift, SCIP_HashTable::slots, TRUE, and SCIP_HashTable::userptr.
Referenced by cleanupHashDatas(), consdataFree(), correctConshdlrdata(), correctPresoldata(), cutpoolDelCut(), detectRedundantConstraints(), extractGates(), mod2matrixPreprocessRows(), retrieveParallelConstraints(), SCIP_DECL_EVENTEXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLEXIT(), SCIPcliquetableCleanup(), SCIPprobRemoveConsName(), SCIPprobRemoveVarName(), and updateConsanddataUses().
void SCIPhashtableRemoveAll | ( | SCIP_HASHTABLE * | hashtable | ) |
removes all elements of the hash table
hashtable | hash table |
Definition at line 2755 of file misc.c.
References assert(), BMSclearMemoryArray, SCIP_HashTable::hashes, SCIP_HashTable::mask, SCIP_HashTable::nelements, and NULL.
Referenced by correctPresoldata(), resolvePropagation(), SCIP_DECL_PRESOLEXEC(), SCIP_DECL_PRESOLEXIT(), SCIPcutpoolClear(), SCIPhashtableClear(), and SCIPvariablegraphBreadthFirst().
SCIP_Longint SCIPhashtableGetNElements | ( | SCIP_HASHTABLE * | hashtable | ) |
returns number of hash table elements
hashtable | hash table |
Definition at line 2767 of file misc.c.
References assert(), SCIP_HashTable::nelements, and NULL.
Referenced by SCIP_DECL_HEUREXEC().
int SCIPhashtableGetNEntries | ( | SCIP_HASHTABLE * | hashtable | ) |
gives the number of entries in the internal arrays of a hash table
hashtable | hash table |
Definition at line 2777 of file misc.c.
References SCIP_HashTable::mask.
Referenced by detectHiddenProducts(), freeOrbitope(), freeShadowTree(), and SCIP_DECL_PRESOLEXEC().
void * SCIPhashtableGetEntry | ( | SCIP_HASHTABLE * | hashtable, |
int | entryidx ) |
gives the element at the given index or NULL if entry at that index has no element
hashtable | hash table |
entryidx | index of hash table entry |
Definition at line 2785 of file misc.c.
References SCIP_HashTable::hashes, i, NULL, and SCIP_HashTable::slots.
Referenced by detectHiddenProducts(), freeOrbitope(), and freeShadowTree().
SCIP_Real SCIPhashtableGetLoad | ( | SCIP_HASHTABLE * | hashtable | ) |
returns the load of the given hash table in percentage
hashtable | hash table |
Definition at line 2794 of file misc.c.
References assert(), SCIP_HashTable::mask, SCIP_HashTable::nelements, and NULL.
void SCIPhashtablePrintStatistics | ( | SCIP_HASHTABLE * | hashtable, |
SCIP_MESSAGEHDLR * | messagehdlr ) |
prints statistics about hash table usage
hashtable | hash table |
messagehdlr | message handler |
Definition at line 2804 of file misc.c.
References assert(), ELEM_DISTANCE, SCIP_HashTable::hashes, i, SCIP_HashTable::mask, MAX, SCIP_HashTable::nelements, NULL, and SCIPmessagePrintInfo().
Referenced by detectRedundantConstraints().