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author | Alan Mishchenko <alanmi@berkeley.edu> | 2007-09-30 08:01:00 -0700 |
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committer | Alan Mishchenko <alanmi@berkeley.edu> | 2007-09-30 08:01:00 -0700 |
commit | e54d9691616b9a0326e2fdb3156bb4eeb8abfcd7 (patch) | |
tree | de3ffe87c3e17950351e3b7d97fa18318bd5ea9a /src/opt/rwr | |
parent | 7d7e60f2dc84393cd4c5db22d2eaf7b1fb1a79b2 (diff) | |
download | abc-e54d9691616b9a0326e2fdb3156bb4eeb8abfcd7.tar.gz abc-e54d9691616b9a0326e2fdb3156bb4eeb8abfcd7.tar.bz2 abc-e54d9691616b9a0326e2fdb3156bb4eeb8abfcd7.zip |
Version abc70930
Diffstat (limited to 'src/opt/rwr')
-rw-r--r-- | src/opt/rwr/module.make | 7 | ||||
-rw-r--r-- | src/opt/rwr/rwr.h | 169 | ||||
-rw-r--r-- | src/opt/rwr/rwrDec.c | 150 | ||||
-rw-r--r-- | src/opt/rwr/rwrEva.c | 587 | ||||
-rw-r--r-- | src/opt/rwr/rwrExp.c | 333 | ||||
-rw-r--r-- | src/opt/rwr/rwrLib.c | 362 | ||||
-rw-r--r-- | src/opt/rwr/rwrMan.c | 318 | ||||
-rw-r--r-- | src/opt/rwr/rwrPrint.c | 266 | ||||
-rw-r--r-- | src/opt/rwr/rwrTemp.c | 121 | ||||
-rw-r--r-- | src/opt/rwr/rwrUtil.c | 659 |
10 files changed, 0 insertions, 2972 deletions
diff --git a/src/opt/rwr/module.make b/src/opt/rwr/module.make deleted file mode 100644 index 077a3c01..00000000 --- a/src/opt/rwr/module.make +++ /dev/null @@ -1,7 +0,0 @@ -SRC += src/opt/rwr/rwrDec.c \ - src/opt/rwr/rwrEva.c \ - src/opt/rwr/rwrExp.c \ - src/opt/rwr/rwrLib.c \ - src/opt/rwr/rwrMan.c \ - src/opt/rwr/rwrPrint.c \ - src/opt/rwr/rwrUtil.c diff --git a/src/opt/rwr/rwr.h b/src/opt/rwr/rwr.h deleted file mode 100644 index f24f9535..00000000 --- a/src/opt/rwr/rwr.h +++ /dev/null @@ -1,169 +0,0 @@ -/**CFile**************************************************************** - - FileName [rwr.h] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [DAG-aware AIG rewriting package.] - - Synopsis [External declarations.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - June 20, 2005.] - - Revision [$Id: rwr.h,v 1.00 2005/06/20 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#ifndef __RWR_H__ -#define __RWR_H__ - -#ifdef __cplusplus -extern "C" { -#endif - -//////////////////////////////////////////////////////////////////////// -/// INCLUDES /// -//////////////////////////////////////////////////////////////////////// - -#include "abc.h" -#include "cut.h" - -//////////////////////////////////////////////////////////////////////// -/// PARAMETERS /// -//////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////// -/// BASIC TYPES /// -//////////////////////////////////////////////////////////////////////// - -#define RWR_LIMIT 1048576/4 // ((1 << 20) - -typedef struct Rwr_Man_t_ Rwr_Man_t; -typedef struct Rwr_Node_t_ Rwr_Node_t; - -struct Rwr_Man_t_ -{ - // internal lookups - int nFuncs; // number of four var functions - unsigned short * puCanons; // canonical forms - char * pPhases; // canonical phases - char * pPerms; // canonical permutations - unsigned char * pMap; // mapping of functions into class numbers - unsigned short * pMapInv; // mapping of classes into functions - char * pPractical; // practical NPN classes - char ** pPerms4; // four-var permutations - // node space - Vec_Ptr_t * vForest; // all the nodes - Rwr_Node_t ** pTable; // the hash table of nodes by their canonical form - Vec_Vec_t * vClasses; // the nodes of the equivalence classes - Extra_MmFixed_t * pMmNode; // memory for nodes and cuts - // statistical variables - int nTravIds; // the counter of traversal IDs - int nConsidered; // the number of nodes considered - int nAdded; // the number of nodes added to lists - int nClasses; // the number of NN classes - // the result of resynthesis - int fCompl; // indicates if the output of FF should be complemented - void * pGraph; // the decomposition tree (temporary) - Vec_Ptr_t * vFanins; // the fanins array (temporary) - Vec_Ptr_t * vFaninsCur; // the fanins array (temporary) - Vec_Int_t * vLevNums; // the array of levels (temporary) - Vec_Ptr_t * vNodesTemp; // the nodes in MFFC (temporary) - // node statistics - int nNodesConsidered; - int nNodesRewritten; - int nNodesGained; - int nNodesBeg; - int nNodesEnd; - int nScores[222]; - int nCutsGood; - int nCutsBad; - int nSubgraphs; - // runtime statistics - int timeStart; - int timeCut; - int timeRes; - int timeEval; - int timeMffc; - int timeUpdate; - int timeTotal; -}; - -struct Rwr_Node_t_ // 24 bytes -{ - int Id; // ID - int TravId; // traversal ID - short nScore; - short nGain; - short nAdded; - unsigned uTruth : 16; // truth table - unsigned Volume : 8; // volume - unsigned Level : 6; // level - unsigned fUsed : 1; // mark - unsigned fExor : 1; // mark - Rwr_Node_t * p0; // first child - Rwr_Node_t * p1; // second child - Rwr_Node_t * pNext; // next in the table -}; - -// manipulation of complemented attributes -static inline bool Rwr_IsComplement( Rwr_Node_t * p ) { return (bool)(((unsigned long)p) & 01); } -static inline Rwr_Node_t * Rwr_Regular( Rwr_Node_t * p ) { return (Rwr_Node_t *)((unsigned long)(p) & ~01); } -static inline Rwr_Node_t * Rwr_Not( Rwr_Node_t * p ) { return (Rwr_Node_t *)((unsigned long)(p) ^ 01); } -static inline Rwr_Node_t * Rwr_NotCond( Rwr_Node_t * p, int c ) { return (Rwr_Node_t *)((unsigned long)(p) ^ (c)); } - -//////////////////////////////////////////////////////////////////////// -/// MACRO DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -/*=== rwrDec.c ========================================================*/ -extern void Rwr_ManPreprocess( Rwr_Man_t * p ); -/*=== rwrEva.c ========================================================*/ -extern int Rwr_NodeRewrite( Rwr_Man_t * p, Cut_Man_t * pManCut, Abc_Obj_t * pNode, int fUpdateLevel, int fUseZeros, int fPlaceEnable ); -extern void Rwr_ScoresClean( Rwr_Man_t * p ); -extern void Rwr_ScoresReport( Rwr_Man_t * p ); -/*=== rwrLib.c ========================================================*/ -extern void Rwr_ManPrecompute( Rwr_Man_t * p ); -extern Rwr_Node_t * Rwr_ManAddVar( Rwr_Man_t * p, unsigned uTruth, int fPrecompute ); -extern Rwr_Node_t * Rwr_ManAddNode( Rwr_Man_t * p, Rwr_Node_t * p0, Rwr_Node_t * p1, int fExor, int Level, int Volume ); -extern int Rwr_ManNodeVolume( Rwr_Man_t * p, Rwr_Node_t * p0, Rwr_Node_t * p1 ); -extern void Rwr_ManIncTravId( Rwr_Man_t * p ); -/*=== rwrMan.c ========================================================*/ -extern Rwr_Man_t * Rwr_ManStart( bool fPrecompute ); -extern void Rwr_ManStop( Rwr_Man_t * p ); -extern void Rwr_ManPrintStats( Rwr_Man_t * p ); -extern void Rwr_ManPrintStatsFile( Rwr_Man_t * p ); -extern void * Rwr_ManReadDecs( Rwr_Man_t * p ); -extern Vec_Ptr_t * Rwr_ManReadLeaves( Rwr_Man_t * p ); -extern int Rwr_ManReadCompl( Rwr_Man_t * p ); -extern void Rwr_ManAddTimeCuts( Rwr_Man_t * p, int Time ); -extern void Rwr_ManAddTimeUpdate( Rwr_Man_t * p, int Time ); -extern void Rwr_ManAddTimeTotal( Rwr_Man_t * p, int Time ); -/*=== rwrPrint.c ========================================================*/ -extern void Rwr_ManPrint( Rwr_Man_t * p ); -/*=== rwrUtil.c ========================================================*/ -extern void Rwr_ManWriteToArray( Rwr_Man_t * p ); -extern void Rwr_ManLoadFromArray( Rwr_Man_t * p, int fVerbose ); -extern void Rwr_ManWriteToFile( Rwr_Man_t * p, char * pFileName ); -extern void Rwr_ManLoadFromFile( Rwr_Man_t * p, char * pFileName ); -extern void Rwr_ListAddToTail( Rwr_Node_t ** ppList, Rwr_Node_t * pNode ); -extern char * Rwr_ManGetPractical( Rwr_Man_t * p ); - -#ifdef __cplusplus -} -#endif - -#endif - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - diff --git a/src/opt/rwr/rwrDec.c b/src/opt/rwr/rwrDec.c deleted file mode 100644 index ef7af34f..00000000 --- a/src/opt/rwr/rwrDec.c +++ /dev/null @@ -1,150 +0,0 @@ -/**CFile**************************************************************** - - FileName [rwrDec.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [DAG-aware AIG rewriting package.] - - Synopsis [Evaluation and decomposition procedures.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - June 20, 2005.] - - Revision [$Id: rwrDec.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "rwr.h" -#include "dec.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -static Dec_Graph_t * Rwr_NodePreprocess( Rwr_Man_t * p, Rwr_Node_t * pNode ); -static Dec_Edge_t Rwr_TravCollect_rec( Rwr_Man_t * p, Rwr_Node_t * pNode, Dec_Graph_t * pGraph ); - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Preprocesses computed library of subgraphs.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManPreprocess( Rwr_Man_t * p ) -{ - Dec_Graph_t * pGraph; - Rwr_Node_t * pNode; - int i, k; - // put the nodes into the structure - p->pMapInv = ALLOC( unsigned short, 222 ); - memset( p->pMapInv, 0, sizeof(unsigned short) * 222 ); - p->vClasses = Vec_VecStart( 222 ); - for ( i = 0; i < p->nFuncs; i++ ) - { - if ( p->pTable[i] == NULL ) - continue; - // consider all implementations of this function - for ( pNode = p->pTable[i]; pNode; pNode = pNode->pNext ) - { - assert( pNode->uTruth == p->pTable[i]->uTruth ); - assert( p->pMap[pNode->uTruth] >= 0 && p->pMap[pNode->uTruth] < 222 ); - Vec_VecPush( p->vClasses, p->pMap[pNode->uTruth], pNode ); - p->pMapInv[ p->pMap[pNode->uTruth] ] = p->puCanons[pNode->uTruth]; - } - } - // compute decomposition forms for each node and verify them - Vec_VecForEachEntry( p->vClasses, pNode, i, k ) - { - pGraph = Rwr_NodePreprocess( p, pNode ); - pNode->pNext = (Rwr_Node_t *)pGraph; - assert( pNode->uTruth == (Dec_GraphDeriveTruth(pGraph) & 0xFFFF) ); - } -} - -/**Function************************************************************* - - Synopsis [Preprocesses subgraphs rooted at this node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Dec_Graph_t * Rwr_NodePreprocess( Rwr_Man_t * p, Rwr_Node_t * pNode ) -{ - Dec_Graph_t * pGraph; - Dec_Edge_t eRoot; - assert( !Rwr_IsComplement(pNode) ); - // consider constant - if ( pNode->uTruth == 0 ) - return Dec_GraphCreateConst0(); - // consider the case of elementary var - if ( pNode->uTruth == 0x00FF ) - return Dec_GraphCreateLeaf( 3, 4, 1 ); - // start the subgraphs - pGraph = Dec_GraphCreate( 4 ); - // collect the nodes - Rwr_ManIncTravId( p ); - eRoot = Rwr_TravCollect_rec( p, pNode, pGraph ); - Dec_GraphSetRoot( pGraph, eRoot ); - return pGraph; -} - -/**Function************************************************************* - - Synopsis [Adds one node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Dec_Edge_t Rwr_TravCollect_rec( Rwr_Man_t * p, Rwr_Node_t * pNode, Dec_Graph_t * pGraph ) -{ - Dec_Edge_t eNode0, eNode1, eNode; - // elementary variable - if ( pNode->fUsed ) - return Dec_EdgeCreate( pNode->Id - 1, 0 ); - // previously visited node - if ( pNode->TravId == p->nTravIds ) - return Dec_IntToEdge( pNode->Volume ); - pNode->TravId = p->nTravIds; - // solve for children - eNode0 = Rwr_TravCollect_rec( p, Rwr_Regular(pNode->p0), pGraph ); - if ( Rwr_IsComplement(pNode->p0) ) - eNode0.fCompl = !eNode0.fCompl; - eNode1 = Rwr_TravCollect_rec( p, Rwr_Regular(pNode->p1), pGraph ); - if ( Rwr_IsComplement(pNode->p1) ) - eNode1.fCompl = !eNode1.fCompl; - // create the decomposition node(s) - if ( pNode->fExor ) - eNode = Dec_GraphAddNodeXor( pGraph, eNode0, eNode1, 0 ); - else - eNode = Dec_GraphAddNodeAnd( pGraph, eNode0, eNode1 ); - // save the result - pNode->Volume = Dec_EdgeToInt( eNode ); - return eNode; -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - diff --git a/src/opt/rwr/rwrEva.c b/src/opt/rwr/rwrEva.c deleted file mode 100644 index f46c16c0..00000000 --- a/src/opt/rwr/rwrEva.c +++ /dev/null @@ -1,587 +0,0 @@ -/**CFile**************************************************************** - - FileName [rwrDec.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [DAG-aware AIG rewriting package.] - - Synopsis [Evaluation and decomposition procedures.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - June 20, 2005.] - - Revision [$Id: rwrDec.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "rwr.h" -#include "dec.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -static Dec_Graph_t * Rwr_CutEvaluate( Rwr_Man_t * p, Abc_Obj_t * pRoot, Cut_Cut_t * pCut, Vec_Ptr_t * vFaninsCur, int nNodesSaved, int LevelMax, int * pGainBest, int fPlaceEnable ); -static int Rwr_CutIsBoolean( Abc_Obj_t * pObj, Vec_Ptr_t * vLeaves ); -static int Rwr_CutCountNumNodes( Abc_Obj_t * pObj, Cut_Cut_t * pCut ); -static int Rwr_NodeGetDepth_rec( Abc_Obj_t * pObj, Vec_Ptr_t * vLeaves ); - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Performs rewriting for one node.] - - Description [This procedure considers all the cuts computed for the node - and tries to rewrite each of them using the "forest" of different AIG - structures precomputed and stored in the RWR manager. - Determines the best rewriting and computes the gain in the number of AIG - nodes in the final network. In the end, p->vFanins contains information - about the best cut that can be used for rewriting, while p->pGraph gives - the decomposition dag (represented using decomposition graph data structure). - Returns gain in the number of nodes or -1 if node cannot be rewritten.] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Rwr_NodeRewrite( Rwr_Man_t * p, Cut_Man_t * pManCut, Abc_Obj_t * pNode, int fUpdateLevel, int fUseZeros, int fPlaceEnable ) -{ - int fVeryVerbose = 0; - Dec_Graph_t * pGraph; - Cut_Cut_t * pCut;//, * pTemp; - Abc_Obj_t * pFanin; - unsigned uPhase, uTruthBest, uTruth; - char * pPerm; - int Required, nNodesSaved, nNodesSaveCur; - int i, GainCur, GainBest = -1; - int clk, clk2;//, Counter; - - p->nNodesConsidered++; - // get the required times - Required = fUpdateLevel? Abc_ObjRequiredLevel(pNode) : ABC_INFINITY; - - // get the node's cuts -clk = clock(); - pCut = (Cut_Cut_t *)Abc_NodeGetCutsRecursive( pManCut, pNode, 0, 0 ); - assert( pCut != NULL ); -p->timeCut += clock() - clk; - -//printf( " %d", Rwr_CutCountNumNodes(pNode, pCut) ); -/* - Counter = 0; - for ( pTemp = pCut->pNext; pTemp; pTemp = pTemp->pNext ) - Counter++; - printf( "%d ", Counter ); -*/ - // go through the cuts -clk = clock(); - for ( pCut = pCut->pNext; pCut; pCut = pCut->pNext ) - { - // consider only 4-input cuts - if ( pCut->nLeaves < 4 ) - continue; -// Cut_CutPrint( pCut, 0 ), printf( "\n" ); - - // get the fanin permutation - uTruth = 0xFFFF & *Cut_CutReadTruth(pCut); - pPerm = p->pPerms4[ p->pPerms[uTruth] ]; - uPhase = p->pPhases[uTruth]; - // collect fanins with the corresponding permutation/phase - Vec_PtrClear( p->vFaninsCur ); - Vec_PtrFill( p->vFaninsCur, (int)pCut->nLeaves, 0 ); - for ( i = 0; i < (int)pCut->nLeaves; i++ ) - { - pFanin = Abc_NtkObj( pNode->pNtk, pCut->pLeaves[pPerm[i]] ); - if ( pFanin == NULL ) - break; - pFanin = Abc_ObjNotCond(pFanin, ((uPhase & (1<<i)) > 0) ); - Vec_PtrWriteEntry( p->vFaninsCur, i, pFanin ); - } - if ( i != (int)pCut->nLeaves ) - { - p->nCutsBad++; - continue; - } - p->nCutsGood++; - - { - int Counter = 0; - Vec_PtrForEachEntry( p->vFaninsCur, pFanin, i ) - if ( Abc_ObjFanoutNum(Abc_ObjRegular(pFanin)) == 1 ) - Counter++; - if ( Counter > 2 ) - continue; - } - -clk2 = clock(); -/* - printf( "Considering: (" ); - Vec_PtrForEachEntry( p->vFaninsCur, pFanin, i ) - printf( "%d ", Abc_ObjFanoutNum(Abc_ObjRegular(pFanin)) ); - printf( ")\n" ); -*/ - // mark the fanin boundary - Vec_PtrForEachEntry( p->vFaninsCur, pFanin, i ) - Abc_ObjRegular(pFanin)->vFanouts.nSize++; - - // label MFFC with current ID - Abc_NtkIncrementTravId( pNode->pNtk ); - nNodesSaved = Abc_NodeMffcLabelAig( pNode ); - // unmark the fanin boundary - Vec_PtrForEachEntry( p->vFaninsCur, pFanin, i ) - Abc_ObjRegular(pFanin)->vFanouts.nSize--; -p->timeMffc += clock() - clk2; - - // evaluate the cut -clk2 = clock(); - pGraph = Rwr_CutEvaluate( p, pNode, pCut, p->vFaninsCur, nNodesSaved, Required, &GainCur, fPlaceEnable ); -p->timeEval += clock() - clk2; - - // check if the cut is better than the current best one - if ( pGraph != NULL && GainBest < GainCur ) - { - // save this form - nNodesSaveCur = nNodesSaved; - GainBest = GainCur; - p->pGraph = pGraph; - p->fCompl = ((uPhase & (1<<4)) > 0); - uTruthBest = 0xFFFF & *Cut_CutReadTruth(pCut); - // collect fanins in the - Vec_PtrClear( p->vFanins ); - Vec_PtrForEachEntry( p->vFaninsCur, pFanin, i ) - Vec_PtrPush( p->vFanins, pFanin ); - } - } -p->timeRes += clock() - clk; - - if ( GainBest == -1 ) - return -1; -/* - if ( GainBest > 0 ) - { - printf( "Class %d ", p->pMap[uTruthBest] ); - printf( "Gain = %d. Node %d : ", GainBest, pNode->Id ); - Vec_PtrForEachEntry( p->vFanins, pFanin, i ) - printf( "%d ", Abc_ObjRegular(pFanin)->Id ); - Dec_GraphPrint( stdout, p->pGraph, NULL, NULL ); - printf( "\n" ); - } -*/ - -// printf( "%d", nNodesSaveCur - GainBest ); -/* - if ( GainBest > 0 ) - { - if ( Rwr_CutIsBoolean( pNode, p->vFanins ) ) - printf( "b" ); - else - { - printf( "Node %d : ", pNode->Id ); - Vec_PtrForEachEntry( p->vFanins, pFanin, i ) - printf( "%d ", Abc_ObjRegular(pFanin)->Id ); - printf( "a" ); - } - } -*/ -/* - if ( GainBest > 0 ) - if ( p->fCompl ) - printf( "c" ); - else - printf( "." ); -*/ - - // copy the leaves - Vec_PtrForEachEntry( p->vFanins, pFanin, i ) - Dec_GraphNode(p->pGraph, i)->pFunc = pFanin; -/* - printf( "(" ); - Vec_PtrForEachEntry( p->vFanins, pFanin, i ) - printf( " %d", Abc_ObjRegular(pFanin)->vFanouts.nSize - 1 ); - printf( " ) " ); -*/ -// printf( "%d ", Rwr_NodeGetDepth_rec( pNode, p->vFanins ) ); - - p->nScores[p->pMap[uTruthBest]]++; - p->nNodesGained += GainBest; - if ( fUseZeros || GainBest > 0 ) - { - p->nNodesRewritten++; - } - - // report the progress - if ( fVeryVerbose && GainBest > 0 ) - { - printf( "Node %6s : ", Abc_ObjName(pNode) ); - printf( "Fanins = %d. ", p->vFanins->nSize ); - printf( "Save = %d. ", nNodesSaveCur ); - printf( "Add = %d. ", nNodesSaveCur-GainBest ); - printf( "GAIN = %d. ", GainBest ); - printf( "Cone = %d. ", p->pGraph? Dec_GraphNodeNum(p->pGraph) : 0 ); - printf( "Class = %d. ", p->pMap[uTruthBest] ); - printf( "\n" ); - } - return GainBest; -} - -/**Function************************************************************* - - Synopsis [Evaluates the cut.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Dec_Graph_t * Rwr_CutEvaluate( Rwr_Man_t * p, Abc_Obj_t * pRoot, Cut_Cut_t * pCut, Vec_Ptr_t * vFaninsCur, int nNodesSaved, int LevelMax, int * pGainBest, int fPlaceEnable ) -{ - Vec_Ptr_t * vSubgraphs; - Dec_Graph_t * pGraphBest, * pGraphCur; - Rwr_Node_t * pNode, * pFanin; - int nNodesAdded, GainBest, i, k; - unsigned uTruth; - float CostBest, CostCur; - // find the matching class of subgraphs - uTruth = 0xFFFF & *Cut_CutReadTruth(pCut); - vSubgraphs = Vec_VecEntry( p->vClasses, p->pMap[uTruth] ); - p->nSubgraphs += vSubgraphs->nSize; - // determine the best subgraph - GainBest = -1; - CostBest = ABC_INFINITY; - Vec_PtrForEachEntry( vSubgraphs, pNode, i ) - { - // get the current graph - pGraphCur = (Dec_Graph_t *)pNode->pNext; - // copy the leaves - Vec_PtrForEachEntry( vFaninsCur, pFanin, k ) - Dec_GraphNode(pGraphCur, k)->pFunc = pFanin; - // detect how many unlabeled nodes will be reused - nNodesAdded = Dec_GraphToNetworkCount( pRoot, pGraphCur, nNodesSaved, LevelMax ); - if ( nNodesAdded == -1 ) - continue; - assert( nNodesSaved >= nNodesAdded ); - - // evaluate the cut - if ( fPlaceEnable ) - { - extern float Abc_PlaceEvaluateCut( Abc_Obj_t * pRoot, Vec_Ptr_t * vFanins ); - - float Alpha = 0.5; // ??? - float PlaceCost; - - // get the placement cost of the cut - PlaceCost = Abc_PlaceEvaluateCut( pRoot, vFaninsCur ); - - // get the weigted cost of the cut - CostCur = nNodesSaved - nNodesAdded + Alpha * PlaceCost; - - // do not allow uphill moves - if ( nNodesSaved - nNodesAdded < 0 ) - continue; - - // decide what cut to use - if ( CostBest > CostCur ) - { - GainBest = nNodesSaved - nNodesAdded; // pure node cost - CostBest = CostCur; // cost with placement - pGraphBest = pGraphCur; // subgraph to be used for rewriting - - // score the graph - if ( nNodesSaved - nNodesAdded > 0 ) - { - pNode->nScore++; - pNode->nGain += GainBest; - pNode->nAdded += nNodesAdded; - } - } - } - else - { - // count the gain at this node - if ( GainBest < nNodesSaved - nNodesAdded ) - { - GainBest = nNodesSaved - nNodesAdded; - pGraphBest = pGraphCur; - - // score the graph - if ( nNodesSaved - nNodesAdded > 0 ) - { - pNode->nScore++; - pNode->nGain += GainBest; - pNode->nAdded += nNodesAdded; - } - } - } - } - if ( GainBest == -1 ) - return NULL; - *pGainBest = GainBest; - return pGraphBest; -} - -/**Function************************************************************* - - Synopsis [Checks the type of the cut.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_CutIsBoolean_rec( Abc_Obj_t * pObj, Vec_Ptr_t * vLeaves, int fMarkA ) -{ - if ( Vec_PtrFind(vLeaves, pObj) >= 0 || Vec_PtrFind(vLeaves, Abc_ObjNot(pObj)) >= 0 ) - { - if ( fMarkA ) - pObj->fMarkA = 1; - else - pObj->fMarkB = 1; - return; - } - assert( !Abc_ObjIsCi(pObj) ); - Rwr_CutIsBoolean_rec( Abc_ObjFanin0(pObj), vLeaves, fMarkA ); - Rwr_CutIsBoolean_rec( Abc_ObjFanin1(pObj), vLeaves, fMarkA ); -} - -/**Function************************************************************* - - Synopsis [Checks the type of the cut.] - - Description [Returns 1(0) if the cut is Boolean (algebraic).] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Rwr_CutIsBoolean( Abc_Obj_t * pObj, Vec_Ptr_t * vLeaves ) -{ - Abc_Obj_t * pTemp; - int i, RetValue; - Vec_PtrForEachEntry( vLeaves, pTemp, i ) - { - pTemp = Abc_ObjRegular(pTemp); - assert( !pTemp->fMarkA && !pTemp->fMarkB ); - } - Rwr_CutIsBoolean_rec( Abc_ObjFanin0(pObj), vLeaves, 1 ); - Rwr_CutIsBoolean_rec( Abc_ObjFanin1(pObj), vLeaves, 0 ); - RetValue = 0; - Vec_PtrForEachEntry( vLeaves, pTemp, i ) - { - pTemp = Abc_ObjRegular(pTemp); - RetValue |= pTemp->fMarkA && pTemp->fMarkB; - pTemp->fMarkA = pTemp->fMarkB = 0; - } - return RetValue; -} - - -/**Function************************************************************* - - Synopsis [Count the nodes in the cut space of a node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_CutCountNumNodes_rec( Abc_Obj_t * pObj, Cut_Cut_t * pCut, Vec_Ptr_t * vNodes ) -{ - int i; - for ( i = 0; i < (int)pCut->nLeaves; i++ ) - if ( pCut->pLeaves[i] == pObj->Id ) - { - // check if the node is collected - if ( pObj->fMarkC == 0 ) - { - pObj->fMarkC = 1; - Vec_PtrPush( vNodes, pObj ); - } - return; - } - assert( Abc_ObjIsNode(pObj) ); - // check if the node is collected - if ( pObj->fMarkC == 0 ) - { - pObj->fMarkC = 1; - Vec_PtrPush( vNodes, pObj ); - } - // traverse the fanins - Rwr_CutCountNumNodes_rec( Abc_ObjFanin0(pObj), pCut, vNodes ); - Rwr_CutCountNumNodes_rec( Abc_ObjFanin1(pObj), pCut, vNodes ); -} - -/**Function************************************************************* - - Synopsis [Count the nodes in the cut space of a node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Rwr_CutCountNumNodes( Abc_Obj_t * pObj, Cut_Cut_t * pCut ) -{ - Vec_Ptr_t * vNodes; - int i, Counter; - // collect all nodes - vNodes = Vec_PtrAlloc( 100 ); - for ( pCut = pCut->pNext; pCut; pCut = pCut->pNext ) - Rwr_CutCountNumNodes_rec( pObj, pCut, vNodes ); - // clean all nodes - Vec_PtrForEachEntry( vNodes, pObj, i ) - pObj->fMarkC = 0; - // delete and return - Counter = Vec_PtrSize(vNodes); - Vec_PtrFree( vNodes ); - return Counter; -} - - -/**Function************************************************************* - - Synopsis [Returns depth of the cut.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Rwr_NodeGetDepth_rec( Abc_Obj_t * pObj, Vec_Ptr_t * vLeaves ) -{ - Abc_Obj_t * pLeaf; - int i, Depth0, Depth1; - if ( Abc_ObjIsCi(pObj) ) - return 0; - Vec_PtrForEachEntry( vLeaves, pLeaf, i ) - if ( pObj == Abc_ObjRegular(pLeaf) ) - return 0; - Depth0 = Rwr_NodeGetDepth_rec( Abc_ObjFanin0(pObj), vLeaves ); - Depth1 = Rwr_NodeGetDepth_rec( Abc_ObjFanin1(pObj), vLeaves ); - return 1 + ABC_MAX( Depth0, Depth1 ); -} - - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ScoresClean( Rwr_Man_t * p ) -{ - Vec_Ptr_t * vSubgraphs; - Rwr_Node_t * pNode; - int i, k; - for ( i = 0; i < p->vClasses->nSize; i++ ) - { - vSubgraphs = Vec_VecEntry( p->vClasses, i ); - Vec_PtrForEachEntry( vSubgraphs, pNode, k ) - pNode->nScore = pNode->nGain = pNode->nAdded = 0; - } -} - -static int Gains[222]; - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Rwr_ScoresCompare( int * pNum1, int * pNum2 ) -{ - if ( Gains[*pNum1] > Gains[*pNum2] ) - return -1; - if ( Gains[*pNum1] < Gains[*pNum2] ) - return 1; - return 0; -} - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ScoresReport( Rwr_Man_t * p ) -{ - extern void Ivy_TruthDsdComputePrint( unsigned uTruth ); - int Perm[222]; - Vec_Ptr_t * vSubgraphs; - Rwr_Node_t * pNode; - int i, iNew, k; - unsigned uTruth; - // collect total gains - assert( p->vClasses->nSize == 222 ); - for ( i = 0; i < p->vClasses->nSize; i++ ) - { - Perm[i] = i; - Gains[i] = 0; - vSubgraphs = Vec_VecEntry( p->vClasses, i ); - Vec_PtrForEachEntry( vSubgraphs, pNode, k ) - Gains[i] += pNode->nGain; - } - // sort the gains - qsort( Perm, 222, sizeof(int), (int (*)(const void *, const void *))Rwr_ScoresCompare ); - - // print classes - for ( i = 0; i < p->vClasses->nSize; i++ ) - { - iNew = Perm[i]; - if ( Gains[iNew] == 0 ) - break; - vSubgraphs = Vec_VecEntry( p->vClasses, iNew ); - printf( "CLASS %3d: Subgr = %3d. Total gain = %6d. ", iNew, Vec_PtrSize(vSubgraphs), Gains[iNew] ); - uTruth = (unsigned)p->pMapInv[iNew]; - Extra_PrintBinary( stdout, &uTruth, 16 ); - printf( " " ); - Ivy_TruthDsdComputePrint( (unsigned)p->pMapInv[iNew] | ((unsigned)p->pMapInv[iNew] << 16) ); - Vec_PtrForEachEntry( vSubgraphs, pNode, k ) - { - if ( pNode->nScore == 0 ) - continue; - printf( " %2d: S=%5d. A=%5d. G=%6d. ", k, pNode->nScore, pNode->nAdded, pNode->nGain ); - Dec_GraphPrint( stdout, (Dec_Graph_t *)pNode->pNext, NULL, NULL ); - } - } -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - diff --git a/src/opt/rwr/rwrExp.c b/src/opt/rwr/rwrExp.c deleted file mode 100644 index 2d00bb1c..00000000 --- a/src/opt/rwr/rwrExp.c +++ /dev/null @@ -1,333 +0,0 @@ -/**CFile**************************************************************** - - FileName [rwrExp.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [DAG-aware AIG rewriting package.] - - Synopsis [Computation of practically used NN-classes of 4-input cuts.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - June 20, 2005.] - - Revision [$Id: rwrExp.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "rwr.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -typedef struct Rwr_Man4_t_ Rwr_Man4_t; -struct Rwr_Man4_t_ -{ - // internal lookups - int nFuncs; // the number of four-var functions - unsigned short * puCanons; // canonical forms - int * pnCounts; // the counters of functions in each class - int nConsidered; // the number of nodes considered - int nClasses; // the number of NN classes -}; - -typedef struct Rwr_Man5_t_ Rwr_Man5_t; -struct Rwr_Man5_t_ -{ - // internal lookups - stmm_table * tTableNN; // the NN canonical forms - stmm_table * tTableNPN; // the NPN canonical forms -}; - -static Rwr_Man4_t * s_pManRwrExp4 = NULL; -static Rwr_Man5_t * s_pManRwrExp5 = NULL; - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Collects stats about 4-var functions appearing in netlists.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwt_Man4ExploreStart() -{ - Rwr_Man4_t * p; - p = ALLOC( Rwr_Man4_t, 1 ); - memset( p, 0, sizeof(Rwr_Man4_t) ); - // canonical forms - p->nFuncs = (1<<16); - // canonical forms, phases, perms - Extra_Truth4VarNPN( &p->puCanons, NULL, NULL, NULL ); - // counters - p->pnCounts = ALLOC( int, p->nFuncs ); - memset( p->pnCounts, 0, sizeof(int) * p->nFuncs ); - s_pManRwrExp4 = p; -} - -/**Function************************************************************* - - Synopsis [Collects stats about 4-var functions appearing in netlists.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwt_Man4ExploreCount( unsigned uTruth ) -{ - assert( uTruth < (1<<16) ); - s_pManRwrExp4->pnCounts[ s_pManRwrExp4->puCanons[uTruth] ]++; -} - -/**Function************************************************************* - - Synopsis [Collects stats about 4-var functions appearing in netlists.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwt_Man4ExplorePrint() -{ - FILE * pFile; - int i, CountMax, CountWrite, nCuts, nClasses; - int * pDistrib; - int * pReprs; - // find the max number of occurences - nCuts = nClasses = 0; - CountMax = 0; - for ( i = 0; i < s_pManRwrExp4->nFuncs; i++ ) - { - if ( CountMax < s_pManRwrExp4->pnCounts[i] ) - CountMax = s_pManRwrExp4->pnCounts[i]; - nCuts += s_pManRwrExp4->pnCounts[i]; - if ( s_pManRwrExp4->pnCounts[i] > 0 ) - nClasses++; - } - printf( "Number of cuts considered = %8d.\n", nCuts ); - printf( "Classes occurring at least once = %8d.\n", nClasses ); - // print the distribution of classes - pDistrib = ALLOC( int, CountMax + 1 ); - pReprs = ALLOC( int, CountMax + 1 ); - memset( pDistrib, 0, sizeof(int)*(CountMax + 1) ); - for ( i = 0; i < s_pManRwrExp4->nFuncs; i++ ) - { - pDistrib[ s_pManRwrExp4->pnCounts[i] ]++; - pReprs[ s_pManRwrExp4->pnCounts[i] ] = i; - } - - printf( "Occurence = %6d. Num classes = %4d. \n", 0, 2288-nClasses ); - for ( i = 1; i <= CountMax; i++ ) - if ( pDistrib[i] ) - { - printf( "Occurence = %6d. Num classes = %4d. Repr = ", i, pDistrib[i] ); - Extra_PrintBinary( stdout, (unsigned*)&(pReprs[i]), 16 ); - printf( "\n" ); - } - free( pDistrib ); - free( pReprs ); - // write into a file all classes above limit (5) - CountWrite = 0; - pFile = fopen( "npnclass_stats4.txt", "w" ); - for ( i = 0; i < s_pManRwrExp4->nFuncs; i++ ) - if ( s_pManRwrExp4->pnCounts[i] > 0 ) - { - Extra_PrintHex( pFile, i, 4 ); - fprintf( pFile, " %10d\n", s_pManRwrExp4->pnCounts[i] ); -// fprintf( pFile, "%d ", i ); - CountWrite++; - } - fclose( pFile ); - printf( "%d classes written into file \"%s\".\n", CountWrite, "npnclass_stats4.txt" ); -} - - - - -/**Function************************************************************* - - Synopsis [Collects stats about 4-var functions appearing in netlists.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwt_Man5ExploreStart() -{ - Rwr_Man5_t * p; - p = ALLOC( Rwr_Man5_t, 1 ); - memset( p, 0, sizeof(Rwr_Man5_t) ); - p->tTableNN = stmm_init_table( st_numcmp, st_numhash ); - p->tTableNPN = stmm_init_table( st_numcmp, st_numhash ); - s_pManRwrExp5 = p; - -//Extra_PrintHex( stdout, Extra_TruthCanonNPN( 0x0000FFFF, 5 ), 5 ); -//printf( "\n" ); -} - -/**Function************************************************************* - - Synopsis [Collects stats about 4-var functions appearing in netlists.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwt_Man5ExploreCount( unsigned uTruth ) -{ - int * pCounter; - if ( !stmm_find_or_add( s_pManRwrExp5->tTableNN, (char *)uTruth, (char***)&pCounter ) ) - *pCounter = 0; - (*pCounter)++; -} - -/**Function************************************************************* - - Synopsis [Collects stats about 4-var functions appearing in netlists.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwt_Man5ExplorePrint() -{ - FILE * pFile; - stmm_generator * gen; - int i, CountMax, nCuts, Counter; - int * pDistrib; - unsigned * pReprs; - unsigned uTruth, uTruthC; - int clk = clock(); - Vec_Int_t * vClassesNN, * vClassesNPN; - - // find the max number of occurences - nCuts = 0; - CountMax = 0; - stmm_foreach_item( s_pManRwrExp5->tTableNN, gen, (char **)&uTruth, (char **)&Counter ) - { - nCuts += Counter; - if ( CountMax < Counter ) - CountMax = Counter; - } - printf( "Number of cuts considered = %8d.\n", nCuts ); - printf( "Classes occurring at least once = %8d.\n", stmm_count(s_pManRwrExp5->tTableNN) ); - printf( "The largest number of occurence = %8d.\n", CountMax ); - - // print the distribution of classes - pDistrib = ALLOC( int, CountMax + 1 ); - pReprs = ALLOC( unsigned, CountMax + 1 ); - memset( pDistrib, 0, sizeof(int)*(CountMax + 1) ); - stmm_foreach_item( s_pManRwrExp5->tTableNN, gen, (char **)&uTruth, (char **)&Counter ) - { - assert( Counter <= CountMax ); - pDistrib[ Counter ]++; - pReprs[ Counter ] = uTruth; - } - - for ( i = 1; i <= CountMax; i++ ) - if ( pDistrib[i] ) - { - printf( "Occurence = %6d. Num classes = %4d. Repr = ", i, pDistrib[i] ); - Extra_PrintBinary( stdout, pReprs + i, 32 ); - printf( "\n" ); - } - free( pDistrib ); - free( pReprs ); - - - // put them into an array - vClassesNN = Vec_IntAlloc( stmm_count(s_pManRwrExp5->tTableNN) ); - stmm_foreach_item( s_pManRwrExp5->tTableNN, gen, (char **)&uTruth, NULL ) - Vec_IntPush( vClassesNN, (int)uTruth ); - Vec_IntSortUnsigned( vClassesNN ); - - // write into a file all classes - pFile = fopen( "nnclass_stats5.txt", "w" ); - Vec_IntForEachEntry( vClassesNN, uTruth, i ) - { - if ( !stmm_lookup( s_pManRwrExp5->tTableNN, (char *)uTruth, (char **)&Counter ) ) - { - assert( 0 ); - } - Extra_PrintHex( pFile, uTruth, 5 ); - fprintf( pFile, " %10d\n", Counter ); - } - fclose( pFile ); - printf( "%d classes written into file \"%s\".\n", vClassesNN->nSize, "nnclass_stats5.txt" ); - - -clk = clock(); - // how many NPN classes exist? - Vec_IntForEachEntry( vClassesNN, uTruth, i ) - { - int * pCounter; - uTruthC = Extra_TruthCanonNPN( uTruth, 5 ); - if ( !stmm_find_or_add( s_pManRwrExp5->tTableNPN, (char *)uTruthC, (char***)&pCounter ) ) - *pCounter = 0; - if ( !stmm_lookup( s_pManRwrExp5->tTableNN, (char *)uTruth, (char **)&Counter ) ) - { - assert( 0 ); - } - (*pCounter) += Counter; - } - printf( "The numbe of NPN classes = %d.\n", stmm_count(s_pManRwrExp5->tTableNPN) ); -PRT( "Computing NPN classes", clock() - clk ); - - // put them into an array - vClassesNPN = Vec_IntAlloc( stmm_count(s_pManRwrExp5->tTableNPN) ); - stmm_foreach_item( s_pManRwrExp5->tTableNPN, gen, (char **)&uTruth, NULL ) - Vec_IntPush( vClassesNPN, (int)uTruth ); - Vec_IntSortUnsigned( vClassesNPN ); - - // write into a file all classes - pFile = fopen( "npnclass_stats5.txt", "w" ); - Vec_IntForEachEntry( vClassesNPN, uTruth, i ) - { - if ( !stmm_lookup( s_pManRwrExp5->tTableNPN, (char *)uTruth, (char **)&Counter ) ) - { - assert( 0 ); - } - Extra_PrintHex( pFile, uTruth, 5 ); - fprintf( pFile, " %10d\n", Counter ); - } - fclose( pFile ); - printf( "%d classes written into file \"%s\".\n", vClassesNPN->nSize, "npnclass_stats5.txt" ); - - - // can they be uniquely characterized? - -} - - - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - diff --git a/src/opt/rwr/rwrLib.c b/src/opt/rwr/rwrLib.c deleted file mode 100644 index 1cdf350e..00000000 --- a/src/opt/rwr/rwrLib.c +++ /dev/null @@ -1,362 +0,0 @@ -/**CFile**************************************************************** - - FileName [rwrLib.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [DAG-aware AIG rewriting package.] - - Synopsis [] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - June 20, 2005.] - - Revision [$Id: rwrLib.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "rwr.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -static Rwr_Node_t * Rwr_ManTryNode( Rwr_Man_t * p, Rwr_Node_t * p0, Rwr_Node_t * p1, int fExor, int Level, int Volume ); -static void Rwr_MarkUsed_rec( Rwr_Man_t * p, Rwr_Node_t * pNode ); - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Precomputes the forest in the manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManPrecompute( Rwr_Man_t * p ) -{ - Rwr_Node_t * p0, * p1; - int i, k, Level, Volume; - int LevelOld = -1; - int nNodes; - - Vec_PtrForEachEntryStart( p->vForest, p0, i, 1 ) - Vec_PtrForEachEntryStart( p->vForest, p1, k, 1 ) - { - if ( LevelOld < (int)p0->Level ) - { - LevelOld = p0->Level; - printf( "Starting level %d (at %d nodes).\n", LevelOld+1, i ); - printf( "Considered = %5d M. Found = %8d. Classes = %6d. Trying %7d.\n", - p->nConsidered/1000000, p->vForest->nSize, p->nClasses, i ); - } - - if ( k == i ) - break; -// if ( p0->Level + p1->Level > 6 ) // hard -// break; - - if ( p0->Level + p1->Level > 5 ) // easy - break; - -// if ( p0->Level + p1->Level > 6 || (p0->Level == 3 && p1->Level == 3) ) -// break; - - // compute the level and volume of the new nodes - Level = 1 + ABC_MAX( p0->Level, p1->Level ); - Volume = 1 + Rwr_ManNodeVolume( p, p0, p1 ); - // try four different AND nodes - Rwr_ManTryNode( p, p0 , p1 , 0, Level, Volume ); - Rwr_ManTryNode( p, Rwr_Not(p0), p1 , 0, Level, Volume ); - Rwr_ManTryNode( p, p0 , Rwr_Not(p1), 0, Level, Volume ); - Rwr_ManTryNode( p, Rwr_Not(p0), Rwr_Not(p1), 0, Level, Volume ); - // try EXOR - Rwr_ManTryNode( p, p0 , p1 , 1, Level, Volume + 1 ); - // report the progress - if ( p->nConsidered % 50000000 == 0 ) - printf( "Considered = %5d M. Found = %8d. Classes = %6d. Trying %7d.\n", - p->nConsidered/1000000, p->vForest->nSize, p->nClasses, i ); - // quit after some time - if ( p->vForest->nSize == RWR_LIMIT + 5 ) - { - printf( "Considered = %5d M. Found = %8d. Classes = %6d. Trying %7d.\n", - p->nConsidered/1000000, p->vForest->nSize, p->nClasses, i ); - goto save; - } - } -save : - - // mark the relevant ones - Rwr_ManIncTravId( p ); - k = 5; - nNodes = 0; - Vec_PtrForEachEntryStart( p->vForest, p0, i, 5 ) - if ( p0->uTruth == p->puCanons[p0->uTruth] ) - { - Rwr_MarkUsed_rec( p, p0 ); - nNodes++; - } - - // compact the array by throwing away non-canonical - k = 5; - Vec_PtrForEachEntryStart( p->vForest, p0, i, 5 ) - if ( p0->fUsed ) - { - p->vForest->pArray[k] = p0; - p0->Id = k++; - } - p->vForest->nSize = k; - printf( "Total canonical = %4d. Total used = %5d.\n", nNodes, p->vForest->nSize ); -} - -/**Function************************************************************* - - Synopsis [Adds one node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Rwr_Node_t * Rwr_ManTryNode( Rwr_Man_t * p, Rwr_Node_t * p0, Rwr_Node_t * p1, int fExor, int Level, int Volume ) -{ - Rwr_Node_t * pOld, * pNew, ** ppPlace; - unsigned uTruth; - // compute truth table, level, volume - p->nConsidered++; - if ( fExor ) - { -// printf( "Considering EXOR of %d and %d.\n", p0->Id, p1->Id ); - uTruth = (p0->uTruth ^ p1->uTruth); - } - else - uTruth = (Rwr_IsComplement(p0)? ~Rwr_Regular(p0)->uTruth : Rwr_Regular(p0)->uTruth) & - (Rwr_IsComplement(p1)? ~Rwr_Regular(p1)->uTruth : Rwr_Regular(p1)->uTruth) & 0xFFFF; - // skip non-practical classes - if ( Level > 2 && !p->pPractical[p->puCanons[uTruth]] ) - return NULL; - // enumerate through the nodes with the same canonical form - ppPlace = p->pTable + uTruth; - for ( pOld = *ppPlace; pOld; ppPlace = &pOld->pNext, pOld = pOld->pNext ) - { - if ( pOld->Level < (unsigned)Level && pOld->Volume < (unsigned)Volume ) - return NULL; - if ( pOld->Level == (unsigned)Level && pOld->Volume < (unsigned)Volume ) - return NULL; -// if ( pOld->Level < (unsigned)Level && pOld->Volume == (unsigned)Volume ) -// return NULL; - } -/* - // enumerate through the nodes with the opposite polarity - for ( pOld = p->pTable[~uTruth & 0xFFFF]; pOld; pOld = pOld->pNext ) - { - if ( pOld->Level < (unsigned)Level && pOld->Volume < (unsigned)Volume ) - return NULL; - if ( pOld->Level == (unsigned)Level && pOld->Volume < (unsigned)Volume ) - return NULL; -// if ( pOld->Level < (unsigned)Level && pOld->Volume == (unsigned)Volume ) -// return NULL; - } -*/ - // count the classes - if ( p->pTable[uTruth] == NULL && p->puCanons[uTruth] == uTruth ) - p->nClasses++; - // create the new node - pNew = (Rwr_Node_t *)Extra_MmFixedEntryFetch( p->pMmNode ); - pNew->Id = p->vForest->nSize; - pNew->TravId = 0; - pNew->uTruth = uTruth; - pNew->Level = Level; - pNew->Volume = Volume; - pNew->fUsed = 0; - pNew->fExor = fExor; - pNew->p0 = p0; - pNew->p1 = p1; - pNew->pNext = NULL; - Vec_PtrPush( p->vForest, pNew ); - *ppPlace = pNew; - return pNew; -} - -/**Function************************************************************* - - Synopsis [Adds one node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Rwr_Node_t * Rwr_ManAddNode( Rwr_Man_t * p, Rwr_Node_t * p0, Rwr_Node_t * p1, int fExor, int Level, int Volume ) -{ - Rwr_Node_t * pNew; - unsigned uTruth; - // compute truth table, leve, volume - p->nConsidered++; - if ( fExor ) - uTruth = (p0->uTruth ^ p1->uTruth); - else - uTruth = (Rwr_IsComplement(p0)? ~Rwr_Regular(p0)->uTruth : Rwr_Regular(p0)->uTruth) & - (Rwr_IsComplement(p1)? ~Rwr_Regular(p1)->uTruth : Rwr_Regular(p1)->uTruth) & 0xFFFF; - // create the new node - pNew = (Rwr_Node_t *)Extra_MmFixedEntryFetch( p->pMmNode ); - pNew->Id = p->vForest->nSize; - pNew->TravId = 0; - pNew->uTruth = uTruth; - pNew->Level = Level; - pNew->Volume = Volume; - pNew->fUsed = 0; - pNew->fExor = fExor; - pNew->p0 = p0; - pNew->p1 = p1; - pNew->pNext = NULL; - Vec_PtrPush( p->vForest, pNew ); - // do not add if the node is not essential - if ( uTruth != p->puCanons[uTruth] ) - return pNew; - - // add to the list - p->nAdded++; - if ( p->pTable[uTruth] == NULL ) - p->nClasses++; - Rwr_ListAddToTail( p->pTable + uTruth, pNew ); - return pNew; -} - -/**Function************************************************************* - - Synopsis [Adds one node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Rwr_Node_t * Rwr_ManAddVar( Rwr_Man_t * p, unsigned uTruth, int fPrecompute ) -{ - Rwr_Node_t * pNew; - pNew = (Rwr_Node_t *)Extra_MmFixedEntryFetch( p->pMmNode ); - pNew->Id = p->vForest->nSize; - pNew->TravId = 0; - pNew->uTruth = uTruth; - pNew->Level = 0; - pNew->Volume = 0; - pNew->fUsed = 1; - pNew->fExor = 0; - pNew->p0 = NULL; - pNew->p1 = NULL; - pNew->pNext = NULL; - Vec_PtrPush( p->vForest, pNew ); - if ( fPrecompute ) - Rwr_ListAddToTail( p->pTable + uTruth, pNew ); - return pNew; -} - - - -/**Function************************************************************* - - Synopsis [Adds one node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_MarkUsed_rec( Rwr_Man_t * p, Rwr_Node_t * pNode ) -{ - if ( pNode->fUsed || pNode->TravId == p->nTravIds ) - return; - pNode->TravId = p->nTravIds; - pNode->fUsed = 1; - Rwr_MarkUsed_rec( p, Rwr_Regular(pNode->p0) ); - Rwr_MarkUsed_rec( p, Rwr_Regular(pNode->p1) ); -} - -/**Function************************************************************* - - Synopsis [Adds one node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_Trav_rec( Rwr_Man_t * p, Rwr_Node_t * pNode, int * pVolume ) -{ - if ( pNode->fUsed || pNode->TravId == p->nTravIds ) - return; - pNode->TravId = p->nTravIds; - (*pVolume)++; - if ( pNode->fExor ) - (*pVolume)++; - Rwr_Trav_rec( p, Rwr_Regular(pNode->p0), pVolume ); - Rwr_Trav_rec( p, Rwr_Regular(pNode->p1), pVolume ); -} - -/**Function************************************************************* - - Synopsis [Adds one node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Rwr_ManNodeVolume( Rwr_Man_t * p, Rwr_Node_t * p0, Rwr_Node_t * p1 ) -{ - int Volume = 0; - Rwr_ManIncTravId( p ); - Rwr_Trav_rec( p, p0, &Volume ); - Rwr_Trav_rec( p, p1, &Volume ); - return Volume; -} - -/**Function************************************************************* - - Synopsis [Adds one node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManIncTravId( Rwr_Man_t * p ) -{ - Rwr_Node_t * pNode; - int i; - if ( p->nTravIds++ < 0x8FFFFFFF ) - return; - Vec_PtrForEachEntry( p->vForest, pNode, i ) - pNode->TravId = 0; - p->nTravIds = 1; -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - diff --git a/src/opt/rwr/rwrMan.c b/src/opt/rwr/rwrMan.c deleted file mode 100644 index 87a080c7..00000000 --- a/src/opt/rwr/rwrMan.c +++ /dev/null @@ -1,318 +0,0 @@ -/**CFile**************************************************************** - - FileName [rwrMan.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [DAG-aware AIG rewriting package.] - - Synopsis [Rewriting manager.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - June 20, 2005.] - - Revision [$Id: rwrMan.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "rwr.h" -#include "main.h" -#include "dec.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Starts rewriting manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Rwr_Man_t * Rwr_ManStart( bool fPrecompute ) -{ - Dec_Man_t * pManDec; - Rwr_Man_t * p; - int clk = clock(); -clk = clock(); - p = ALLOC( Rwr_Man_t, 1 ); - memset( p, 0, sizeof(Rwr_Man_t) ); - p->nFuncs = (1<<16); - pManDec = Abc_FrameReadManDec(); - p->puCanons = pManDec->puCanons; - p->pPhases = pManDec->pPhases; - p->pPerms = pManDec->pPerms; - p->pMap = pManDec->pMap; - // initialize practical NPN classes - p->pPractical = Rwr_ManGetPractical( p ); - // create the table - p->pTable = ALLOC( Rwr_Node_t *, p->nFuncs ); - memset( p->pTable, 0, sizeof(Rwr_Node_t *) * p->nFuncs ); - // create the elementary nodes - p->pMmNode = Extra_MmFixedStart( sizeof(Rwr_Node_t) ); - p->vForest = Vec_PtrAlloc( 100 ); - Rwr_ManAddVar( p, 0x0000, fPrecompute ); // constant 0 - Rwr_ManAddVar( p, 0xAAAA, fPrecompute ); // var A - Rwr_ManAddVar( p, 0xCCCC, fPrecompute ); // var B - Rwr_ManAddVar( p, 0xF0F0, fPrecompute ); // var C - Rwr_ManAddVar( p, 0xFF00, fPrecompute ); // var D - p->nClasses = 5; - // other stuff - p->nTravIds = 1; - p->pPerms4 = Extra_Permutations( 4 ); - p->vLevNums = Vec_IntAlloc( 50 ); - p->vFanins = Vec_PtrAlloc( 50 ); - p->vFaninsCur = Vec_PtrAlloc( 50 ); - p->vNodesTemp = Vec_PtrAlloc( 50 ); - if ( fPrecompute ) - { // precompute subgraphs - Rwr_ManPrecompute( p ); -// Rwr_ManPrint( p ); - Rwr_ManWriteToArray( p ); - } - else - { // load saved subgraphs - Rwr_ManLoadFromArray( p, 0 ); -// Rwr_ManPrint( p ); - Rwr_ManPreprocess( p ); - } -p->timeStart = clock() - clk; - return p; -} - -/**Function************************************************************* - - Synopsis [Stops rewriting manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManStop( Rwr_Man_t * p ) -{ - if ( p->vClasses ) - { - Rwr_Node_t * pNode; - int i, k; - Vec_VecForEachEntry( p->vClasses, pNode, i, k ) - Dec_GraphFree( (Dec_Graph_t *)pNode->pNext ); - } - if ( p->vClasses ) Vec_VecFree( p->vClasses ); - Vec_PtrFree( p->vNodesTemp ); - Vec_PtrFree( p->vForest ); - Vec_IntFree( p->vLevNums ); - Vec_PtrFree( p->vFanins ); - Vec_PtrFree( p->vFaninsCur ); - Extra_MmFixedStop( p->pMmNode ); - FREE( p->pMapInv ); - free( p->pTable ); - free( p->pPractical ); - free( p->pPerms4 ); - free( p ); -} - -/**Function************************************************************* - - Synopsis [Stops the resynthesis manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManPrintStats( Rwr_Man_t * p ) -{ - int i, Counter = 0; - for ( i = 0; i < 222; i++ ) - Counter += (p->nScores[i] > 0); - - printf( "Rewriting statistics:\n" ); - printf( "Total cuts tries = %8d.\n", p->nCutsGood ); - printf( "Bad cuts found = %8d.\n", p->nCutsBad ); - printf( "Total subgraphs = %8d.\n", p->nSubgraphs ); - printf( "Used NPN classes = %8d.\n", Counter ); - printf( "Nodes considered = %8d.\n", p->nNodesConsidered ); - printf( "Nodes rewritten = %8d.\n", p->nNodesRewritten ); - printf( "Gain = %8d. (%6.2f %%).\n", p->nNodesBeg-p->nNodesEnd, 100.0*(p->nNodesBeg-p->nNodesEnd)/p->nNodesBeg ); - PRT( "Start ", p->timeStart ); - PRT( "Cuts ", p->timeCut ); - PRT( "Resynthesis ", p->timeRes ); - PRT( " Mffc ", p->timeMffc ); - PRT( " Eval ", p->timeEval ); - PRT( "Update ", p->timeUpdate ); - PRT( "TOTAL ", p->timeTotal ); - -/* - printf( "The scores are:\n" ); - for ( i = 0; i < 222; i++ ) - if ( p->nScores[i] > 0 ) - { - extern void Ivy_TruthDsdComputePrint( unsigned uTruth ); - printf( "%3d = %8d canon = %5d ", i, p->nScores[i], p->pMapInv[i] ); - Ivy_TruthDsdComputePrint( (unsigned)p->pMapInv[i] | ((unsigned)p->pMapInv[i] << 16) ); - } -*/ - printf( "\n" ); - -} - -/**Function************************************************************* - - Synopsis [Stops the resynthesis manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManPrintStatsFile( Rwr_Man_t * p ) -{ - FILE * pTable; - pTable = fopen( "stats.txt", "a+" ); - fprintf( pTable, "%d ", p->nCutsGood ); - fprintf( pTable, "%d ", p->nSubgraphs ); - fprintf( pTable, "%d ", p->nNodesRewritten ); - fprintf( pTable, "%d", p->nNodesGained ); - fprintf( pTable, "\n" ); - fclose( pTable ); -} - -/**Function************************************************************* - - Synopsis [Stops the resynthesis manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void * Rwr_ManReadDecs( Rwr_Man_t * p ) -{ - return p->pGraph; -} - -/**Function************************************************************* - - Synopsis [Stops the resynthesis manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Vec_Ptr_t * Rwr_ManReadLeaves( Rwr_Man_t * p ) -{ - return p->vFanins; -} - -/**Function************************************************************* - - Synopsis [Stops the resynthesis manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Rwr_ManReadCompl( Rwr_Man_t * p ) -{ - return p->fCompl; -} - -/**Function************************************************************* - - Synopsis [Stops the resynthesis manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManAddTimeCuts( Rwr_Man_t * p, int Time ) -{ - p->timeCut += Time; -} - -/**Function************************************************************* - - Synopsis [Stops the resynthesis manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManAddTimeUpdate( Rwr_Man_t * p, int Time ) -{ - p->timeUpdate += Time; -} - -/**Function************************************************************* - - Synopsis [Stops the resynthesis manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManAddTimeTotal( Rwr_Man_t * p, int Time ) -{ - p->timeTotal += Time; -} - - -/**Function************************************************************* - - Synopsis [Precomputes AIG subgraphs.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_Precompute() -{ - Rwr_Man_t * p; - p = Rwr_ManStart( 1 ); - Rwr_ManStop( p ); -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - diff --git a/src/opt/rwr/rwrPrint.c b/src/opt/rwr/rwrPrint.c deleted file mode 100644 index 82ad2a90..00000000 --- a/src/opt/rwr/rwrPrint.c +++ /dev/null @@ -1,266 +0,0 @@ -/**CFile**************************************************************** - - FileName [rwrCut.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [DAG-aware AIG rewriting package.] - - Synopsis [Cut computation.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - June 20, 2005.] - - Revision [$Id: rwrCut.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "rwr.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Adds one node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_Trav2_rec( Rwr_Man_t * p, Rwr_Node_t * pNode, int * pVolume ) -{ - if ( pNode->fUsed || pNode->TravId == p->nTravIds ) - return; - pNode->TravId = p->nTravIds; - (*pVolume)++; - Rwr_Trav2_rec( p, Rwr_Regular(pNode->p0), pVolume ); - Rwr_Trav2_rec( p, Rwr_Regular(pNode->p1), pVolume ); -} - -/**Function************************************************************* - - Synopsis [Adds the node to the end of the list.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_GetBushVolume( Rwr_Man_t * p, int Entry, int * pVolume, int * pnFuncs ) -{ - Rwr_Node_t * pNode; - int Volume = 0; - int nFuncs = 0; - Rwr_ManIncTravId( p ); - for ( pNode = p->pTable[Entry]; pNode; pNode = pNode->pNext ) - { - if ( pNode->uTruth != p->puCanons[pNode->uTruth] ) - continue; - nFuncs++; - Rwr_Trav2_rec( p, pNode, &Volume ); - } - *pVolume = Volume; - *pnFuncs = nFuncs; -} - -/**Function************************************************************* - - Synopsis [Adds the node to the end of the list.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Rwr_GetBushSumOfVolumes( Rwr_Man_t * p, int Entry ) -{ - Rwr_Node_t * pNode; - int Volume, VolumeTotal = 0; - for ( pNode = p->pTable[Entry]; pNode; pNode = pNode->pNext ) - { - if ( pNode->uTruth != p->puCanons[pNode->uTruth] ) - continue; - Volume = 0; - Rwr_ManIncTravId( p ); - Rwr_Trav2_rec( p, pNode, &Volume ); - VolumeTotal += Volume; - } - return VolumeTotal; -} - -/**Function************************************************************* - - Synopsis [Prints one rwr node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_NodePrint_rec( FILE * pFile, Rwr_Node_t * pNode ) -{ - assert( !Rwr_IsComplement(pNode) ); - - if ( pNode->Id == 0 ) - { - fprintf( pFile, "Const1" ); - return; - } - - if ( pNode->Id < 5 ) - { - fprintf( pFile, "%c", 'a' + pNode->Id - 1 ); - return; - } - - if ( Rwr_IsComplement(pNode->p0) ) - { - if ( Rwr_Regular(pNode->p0)->Id < 5 ) - { - Rwr_NodePrint_rec( pFile, Rwr_Regular(pNode->p0) ); - fprintf( pFile, "\'" ); - } - else - { - fprintf( pFile, "(" ); - Rwr_NodePrint_rec( pFile, Rwr_Regular(pNode->p0) ); - fprintf( pFile, ")\'" ); - } - } - else - { - if ( Rwr_Regular(pNode->p0)->Id < 5 ) - { - Rwr_NodePrint_rec( pFile, Rwr_Regular(pNode->p0) ); - } - else - { - fprintf( pFile, "(" ); - Rwr_NodePrint_rec( pFile, Rwr_Regular(pNode->p0) ); - fprintf( pFile, ")" ); - } - } - - if ( pNode->fExor ) - fprintf( pFile, "+" ); - - if ( Rwr_IsComplement(pNode->p1) ) - { - if ( Rwr_Regular(pNode->p1)->Id < 5 ) - { - Rwr_NodePrint_rec( pFile, Rwr_Regular(pNode->p1) ); - fprintf( pFile, "\'" ); - } - else - { - fprintf( pFile, "(" ); - Rwr_NodePrint_rec( pFile, Rwr_Regular(pNode->p1) ); - fprintf( pFile, ")\'" ); - } - } - else - { - if ( Rwr_Regular(pNode->p1)->Id < 5 ) - { - Rwr_NodePrint_rec( pFile, Rwr_Regular(pNode->p1) ); - } - else - { - fprintf( pFile, "(" ); - Rwr_NodePrint_rec( pFile, Rwr_Regular(pNode->p1) ); - fprintf( pFile, ")" ); - } - } -} - -/**Function************************************************************* - - Synopsis [Prints one rwr node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_NodePrint( FILE * pFile, Rwr_Man_t * p, Rwr_Node_t * pNode ) -{ - unsigned uTruth; - fprintf( pFile, "%5d : ", pNode->Id ); - Extra_PrintHex( pFile, pNode->uTruth, 4 ); - fprintf( pFile, " tt=" ); - uTruth = pNode->uTruth; - Extra_PrintBinary( pFile, &uTruth, 16 ); -// fprintf( pFile, " cn=", pNode->Id ); -// uTruth = p->puCanons[pNode->uTruth]; -// Extra_PrintBinary( pFile, &uTruth, 16 ); - fprintf( pFile, " lev=%d", pNode->Level ); - fprintf( pFile, " vol=%d", pNode->Volume ); - fprintf( pFile, " " ); - Rwr_NodePrint_rec( pFile, pNode ); - fprintf( pFile, "\n" ); -} - -/**Function************************************************************* - - Synopsis [Prints one rwr node.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManPrint( Rwr_Man_t * p ) -{ - FILE * pFile; - Rwr_Node_t * pNode; - unsigned uTruth; - int Limit, Counter, Volume, nFuncs, i; - pFile = fopen( "graph_lib.txt", "w" ); - Counter = 0; - Limit = (1 << 16); - for ( i = 0; i < Limit; i++ ) - { - if ( p->pTable[i] == NULL ) - continue; - if ( i != p->puCanons[i] ) - continue; - fprintf( pFile, "\nClass %3d. Func %6d. ", p->pMap[i], Counter++ ); - Rwr_GetBushVolume( p, i, &Volume, &nFuncs ); - fprintf( pFile, "Roots = %3d. Vol = %3d. Sum = %3d. ", nFuncs, Volume, Rwr_GetBushSumOfVolumes(p, i) ); - uTruth = i; - Extra_PrintBinary( pFile, &uTruth, 16 ); - fprintf( pFile, "\n" ); - for ( pNode = p->pTable[i]; pNode; pNode = pNode->pNext ) - if ( pNode->uTruth == p->puCanons[pNode->uTruth] ) - Rwr_NodePrint( pFile, p, pNode ); - } - fclose( pFile ); -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - diff --git a/src/opt/rwr/rwrTemp.c b/src/opt/rwr/rwrTemp.c deleted file mode 100644 index 3ffbd408..00000000 --- a/src/opt/rwr/rwrTemp.c +++ /dev/null @@ -1,121 +0,0 @@ -/**CFile**************************************************************** - - FileName [rwrCut.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [DAG-aware AIG rewriting package.] - - Synopsis [Cut computation.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - June 20, 2005.] - - Revision [$Id: rwrCut.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "rwr.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -static int pTruths[13719]; -static int pFreqs[13719]; -static int pPerm[13719]; - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Rwr_TempCompare( int * pNum1, int * pNum2 ) -{ - int Freq1 = pFreqs[*pNum1]; - int Freq2 = pFreqs[*pNum2]; - if ( Freq1 < Freq2 ) - return 1; - if ( Freq1 > Freq2 ) - return -1; - return 0; -} - -/**Function************************************************************* - - Synopsis [] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_Temp() -{ - char Buffer[32]; - int nFuncs = 13719; - int nEntries = 100; - unsigned uTruth; - int i, k; - FILE * pFile; - - pFile = fopen( "nnclass_stats5.txt", "r" ); - for ( i = 0; i < 13719; i++ ) - { - fscanf( pFile, "%s%d", Buffer, &pFreqs[i] ); - Extra_ReadHexadecimal( &uTruth, Buffer+2, 5 ); - pTruths[i] = uTruth; - } - fclose( pFile ); - - for ( i = 0; i < 13719; i++ ) - pPerm[i] = i; - - qsort( (void *)pPerm, 13719, sizeof(int), - (int (*)(const void *, const void *)) Rwr_TempCompare ); - - - pFile = fopen( "5npn_100.blif", "w" ); - fprintf( pFile, "# Most frequent NPN classes of 5 vars.\n" ); - fprintf( pFile, ".model 5npn\n" ); - fprintf( pFile, ".inputs a b c d e\n" ); - fprintf( pFile, ".outputs" ); - for ( i = 0; i < nEntries; i++ ) - fprintf( pFile, " %02d", i ); - fprintf( pFile, "\n" ); - - for ( i = 0; i < nEntries; i++ ) - { - fprintf( pFile, ".names a b c d e %02d\n", i ); - uTruth = pTruths[pPerm[i]]; - for ( k = 0; k < 32; k++ ) - if ( uTruth & (1 << k) ) - { - Extra_PrintBinary( pFile, &k, 5 ); - fprintf( pFile, " 1\n" ); - } - } - fprintf( pFile, ".end\n" ); - fclose( pFile ); -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - diff --git a/src/opt/rwr/rwrUtil.c b/src/opt/rwr/rwrUtil.c deleted file mode 100644 index b2add2bf..00000000 --- a/src/opt/rwr/rwrUtil.c +++ /dev/null @@ -1,659 +0,0 @@ -/**CFile**************************************************************** - - FileName [rwrUtil.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [DAG-aware AIG rewriting package.] - - Synopsis [Various utilities.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - June 20, 2005.] - - Revision [$Id: rwrUtil.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "rwr.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -// precomputed data -#ifdef _WIN32 -unsigned short s_RwrPracticalClasses[]; -unsigned short s_RwtAigSubgraphs[]; -#else -static unsigned short s_RwrPracticalClasses[]; -static unsigned short s_RwtAigSubgraphs[]; -#endif - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Writes data.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManWriteToArray( Rwr_Man_t * p ) -{ - FILE * pFile; - Rwr_Node_t * pNode; - unsigned Entry0, Entry1; - int i, nEntries, clk = clock(); - // prepare the buffer - nEntries = p->vForest->nSize - 5; - pFile = fopen( "npn4_aig_array.txt", "w" ); - fprintf( pFile, "static unsigned short s_RwtAigSubgraphs[] = \n{" ); - for ( i = 0; i < nEntries; i++ ) - { - if ( i % 5 == 0 ) - fprintf( pFile, "\n " ); - pNode = p->vForest->pArray[i+5]; - Entry0 = (Rwr_Regular(pNode->p0)->Id << 1) | Rwr_IsComplement(pNode->p0); - Entry1 = (Rwr_Regular(pNode->p1)->Id << 1) | Rwr_IsComplement(pNode->p1); - Entry0 = (Entry0 << 1) | pNode->fExor; - Extra_PrintHex( pFile, Entry0, 4 ); - fprintf( pFile, "," ); - Extra_PrintHex( pFile, Entry1, 4 ); - fprintf( pFile, ", " ); - } - if ( i % 5 == 0 ) - fprintf( pFile, "\n " ); - Extra_PrintHex( pFile, 0, 4 ); - fprintf( pFile, "," ); - Extra_PrintHex( pFile, 0, 4 ); - fprintf( pFile, " \n};\n" ); - fclose( pFile ); - printf( "The number of nodes saved = %d. ", nEntries ); PRT( "Saving", clock() - clk ); -} - -/**Function************************************************************* - - Synopsis [Loads data.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManLoadFromArray( Rwr_Man_t * p, int fVerbose ) -{ - unsigned short * pArray = s_RwtAigSubgraphs; - Rwr_Node_t * p0, * p1; - unsigned Entry0, Entry1; - int Level, Volume, nEntries, fExor; - int i, clk = clock(); - - // reconstruct the forest - for ( i = 0; ; i++ ) - { - Entry0 = pArray[2*i + 0]; - Entry1 = pArray[2*i + 1]; - if ( Entry0 == 0 && Entry1 == 0 ) - break; - // get EXOR flag - fExor = (Entry0 & 1); - Entry0 >>= 1; - // get the nodes - p0 = p->vForest->pArray[Entry0 >> 1]; - p1 = p->vForest->pArray[Entry1 >> 1]; - // compute the level and volume of the new nodes - Level = 1 + ABC_MAX( p0->Level, p1->Level ); - Volume = 1 + Rwr_ManNodeVolume( p, p0, p1 ); - // set the complemented attributes - p0 = Rwr_NotCond( p0, (Entry0 & 1) ); - p1 = Rwr_NotCond( p1, (Entry1 & 1) ); - // add the node -// Rwr_ManTryNode( p, p0, p1, Level, Volume ); - Rwr_ManAddNode( p, p0, p1, fExor, Level, Volume + fExor ); - } - nEntries = i - 1; - if ( fVerbose ) - { - printf( "The number of classes = %d. Canonical nodes = %d.\n", p->nClasses, p->nAdded ); - printf( "The number of nodes loaded = %d. ", nEntries ); PRT( "Loading", clock() - clk ); - } -} - - -/**Function************************************************************* - - Synopsis [Writes.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManWriteToFile( Rwr_Man_t * p, char * pFileName ) -{ - FILE * pFile; - Rwr_Node_t * pNode; - unsigned * pBuffer; - int i, nEntries, clk = clock(); - // prepare the buffer - nEntries = p->vForest->nSize - 5; - pBuffer = ALLOC( unsigned, nEntries * 2 ); - for ( i = 0; i < nEntries; i++ ) - { - pNode = p->vForest->pArray[i+5]; - pBuffer[2*i + 0] = (Rwr_Regular(pNode->p0)->Id << 1) | Rwr_IsComplement(pNode->p0); - pBuffer[2*i + 1] = (Rwr_Regular(pNode->p1)->Id << 1) | Rwr_IsComplement(pNode->p1); - // save EXOR flag - pBuffer[2*i + 0] = (pBuffer[2*i + 0] << 1) | pNode->fExor; - - } - pFile = fopen( pFileName, "wb" ); - fwrite( &nEntries, sizeof(int), 1, pFile ); - fwrite( pBuffer, sizeof(unsigned), nEntries * 2, pFile ); - free( pBuffer ); - fclose( pFile ); - printf( "The number of nodes saved = %d. ", nEntries ); PRT( "Saving", clock() - clk ); -} - -/**Function************************************************************* - - Synopsis [Loads data.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ManLoadFromFile( Rwr_Man_t * p, char * pFileName ) -{ - FILE * pFile; - Rwr_Node_t * p0, * p1; - unsigned * pBuffer; - int Level, Volume, nEntries, fExor; - int i, clk = clock(); - - // load the data - pFile = fopen( pFileName, "rb" ); - if ( pFile == NULL ) - { - printf( "Rwr_ManLoadFromFile: Cannot open file \"%s\".\n", pFileName ); - return; - } - fread( &nEntries, sizeof(int), 1, pFile ); - pBuffer = ALLOC( unsigned, nEntries * 2 ); - fread( pBuffer, sizeof(unsigned), nEntries * 2, pFile ); - fclose( pFile ); - // reconstruct the forest - for ( i = 0; i < nEntries; i++ ) - { - // get EXOR flag - fExor = (pBuffer[2*i + 0] & 1); - pBuffer[2*i + 0] = (pBuffer[2*i + 0] >> 1); - // get the nodes - p0 = p->vForest->pArray[pBuffer[2*i + 0] >> 1]; - p1 = p->vForest->pArray[pBuffer[2*i + 1] >> 1]; - // compute the level and volume of the new nodes - Level = 1 + ABC_MAX( p0->Level, p1->Level ); - Volume = 1 + Rwr_ManNodeVolume( p, p0, p1 ); - // set the complemented attributes - p0 = Rwr_NotCond( p0, (pBuffer[2*i + 0] & 1) ); - p1 = Rwr_NotCond( p1, (pBuffer[2*i + 1] & 1) ); - // add the node -// Rwr_ManTryNode( p, p0, p1, Level, Volume ); - Rwr_ManAddNode( p, p0, p1, fExor, Level, Volume + fExor ); - } - free( pBuffer ); - printf( "The number of classes = %d. Canonical nodes = %d.\n", p->nClasses, p->nAdded ); - printf( "The number of nodes loaded = %d. ", nEntries ); PRT( "Loading", clock() - clk ); -} - - -/**Function************************************************************* - - Synopsis [Adds the node to the end of the list.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Rwr_ListAddToTail( Rwr_Node_t ** ppList, Rwr_Node_t * pNode ) -{ - Rwr_Node_t * pTemp; - // find the last one - for ( pTemp = *ppList; pTemp; pTemp = pTemp->pNext ) - ppList = &pTemp->pNext; - // attach at the end - *ppList = pNode; -} - -/**Function************************************************************* - - Synopsis [Create practical classes.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -char * Rwr_ManGetPractical( Rwr_Man_t * p ) -{ - char * pPractical; - int i; - pPractical = ALLOC( char, p->nFuncs ); - memset( pPractical, 0, sizeof(char) * p->nFuncs ); - pPractical[0] = 1; - for ( i = 1; ; i++ ) - { - if ( s_RwrPracticalClasses[i] == 0 ) - break; - pPractical[ s_RwrPracticalClasses[i] ] = 1; - } - return pPractical; -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - -// the following 135 practical NPN classes of 4-variable functions were computed -// by considering all 4-input cuts appearing in IWLS, MCNC, and ISCAS benchmarks -static unsigned short s_RwrPracticalClasses[] = -{ - 0x0000, 0x0001, 0x0003, 0x0006, 0x0007, 0x000f, 0x0016, 0x0017, 0x0018, 0x0019, 0x001b, - 0x001e, 0x001f, 0x003c, 0x003d, 0x003f, 0x0069, 0x006b, 0x006f, 0x007e, 0x007f, 0x00ff, - 0x0116, 0x0118, 0x0119, 0x011a, 0x011b, 0x011e, 0x011f, 0x012c, 0x012d, 0x012f, 0x013c, - 0x013d, 0x013e, 0x013f, 0x0168, 0x0169, 0x016f, 0x017f, 0x0180, 0x0181, 0x0182, 0x0183, - 0x0186, 0x0189, 0x018b, 0x018f, 0x0198, 0x0199, 0x019b, 0x01a8, 0x01a9, 0x01aa, 0x01ab, - 0x01ac, 0x01ad, 0x01ae, 0x01af, 0x01bf, 0x01e9, 0x01ea, 0x01eb, 0x01ee, 0x01ef, 0x01fe, - 0x033c, 0x033d, 0x033f, 0x0356, 0x0357, 0x0358, 0x0359, 0x035a, 0x035b, 0x035f, 0x0368, - 0x0369, 0x036c, 0x036e, 0x037d, 0x03c0, 0x03c1, 0x03c3, 0x03c7, 0x03cf, 0x03d4, 0x03d5, - 0x03d7, 0x03d8, 0x03d9, 0x03dc, 0x03dd, 0x03de, 0x03fc, 0x0660, 0x0661, 0x0666, 0x0669, - 0x066f, 0x0676, 0x067e, 0x0690, 0x0696, 0x0697, 0x069f, 0x06b1, 0x06b6, 0x06f0, 0x06f2, - 0x06f6, 0x06f9, 0x0776, 0x0778, 0x07b0, 0x07b1, 0x07b4, 0x07bc, 0x07f0, 0x07f2, 0x07f8, - 0x0ff0, 0x1683, 0x1696, 0x1698, 0x169e, 0x16e9, 0x178e, 0x17e8, 0x18e7, 0x19e6, 0x1be4, - 0x1ee1, 0x3cc3, 0x6996, 0x0000 -}; - -static unsigned short s_RwtAigSubgraphs[] = -{ - 0x0008,0x0002, 0x000a,0x0002, 0x0008,0x0003, 0x000a,0x0003, 0x0009,0x0002, - 0x000c,0x0002, 0x000e,0x0002, 0x000c,0x0003, 0x000e,0x0003, 0x000d,0x0002, - 0x000c,0x0004, 0x000e,0x0004, 0x000c,0x0005, 0x000e,0x0005, 0x000d,0x0004, - 0x0010,0x0002, 0x0012,0x0002, 0x0010,0x0003, 0x0012,0x0003, 0x0011,0x0002, - 0x0010,0x0004, 0x0012,0x0004, 0x0010,0x0005, 0x0012,0x0005, 0x0011,0x0004, - 0x0010,0x0006, 0x0012,0x0006, 0x0010,0x0007, 0x0012,0x0007, 0x0011,0x0006, - 0x0016,0x0005, 0x0014,0x0006, 0x0016,0x0006, 0x0014,0x0007, 0x0016,0x0007, - 0x0015,0x0006, 0x0014,0x0008, 0x0016,0x0008, 0x0014,0x0009, 0x0016,0x0009, - 0x0015,0x0008, 0x0018,0x0006, 0x001a,0x0006, 0x0018,0x0007, 0x001a,0x0007, - 0x0019,0x0006, 0x0018,0x0009, 0x001a,0x0009, 0x0019,0x0008, 0x001e,0x0005, - 0x001c,0x0006, 0x001e,0x0006, 0x001c,0x0007, 0x001e,0x0007, 0x001d,0x0006, - 0x001c,0x0008, 0x001e,0x0008, 0x001c,0x0009, 0x001e,0x0009, 0x001d,0x0008, - 0x0020,0x0006, 0x0022,0x0006, 0x0020,0x0007, 0x0022,0x0007, 0x0021,0x0006, - 0x0020,0x0008, 0x0022,0x0008, 0x0020,0x0009, 0x0022,0x0009, 0x0021,0x0008, - 0x0024,0x0006, 0x0026,0x0006, 0x0024,0x0007, 0x0026,0x0007, 0x0025,0x0006, - 0x0026,0x0008, 0x0024,0x0009, 0x0026,0x0009, 0x0025,0x0008, 0x0028,0x0004, - 0x002a,0x0004, 0x0028,0x0005, 0x002a,0x0007, 0x0028,0x0008, 0x002a,0x0009, - 0x0029,0x0008, 0x002a,0x000b, 0x0029,0x000a, 0x002a,0x000f, 0x0029,0x000e, - 0x002a,0x0011, 0x002a,0x0013, 0x002c,0x0004, 0x002e,0x0004, 0x002c,0x0005, - 0x002c,0x0009, 0x002e,0x0009, 0x002d,0x0008, 0x002d,0x000c, 0x002e,0x000f, - 0x002e,0x0011, 0x002e,0x0012, 0x0030,0x0004, 0x0032,0x0007, 0x0032,0x0009, - 0x0031,0x0008, 0x0032,0x000b, 0x0032,0x000d, 0x0032,0x000f, 0x0031,0x000e, - 0x0032,0x0013, 0x0034,0x0004, 0x0036,0x0004, 0x0034,0x0005, 0x0036,0x0005, - 0x0035,0x0004, 0x0036,0x0008, 0x0034,0x0009, 0x0036,0x0009, 0x0035,0x0008, - 0x0036,0x000b, 0x0036,0x000d, 0x0036,0x0011, 0x0035,0x0010, 0x0036,0x0013, - 0x0038,0x0004, 0x0039,0x0004, 0x0038,0x0009, 0x003a,0x0009, 0x0039,0x0008, - 0x0038,0x000b, 0x003a,0x000b, 0x003a,0x000d, 0x003a,0x0011, 0x003a,0x0012, - 0x0038,0x0013, 0x003a,0x0013, 0x003c,0x0002, 0x003e,0x0002, 0x003c,0x0003, - 0x003e,0x0005, 0x003e,0x0007, 0x003c,0x0008, 0x003e,0x0008, 0x003c,0x0009, - 0x003e,0x0009, 0x003d,0x0008, 0x003e,0x000d, 0x003e,0x0011, 0x003e,0x0013, - 0x003e,0x0017, 0x003e,0x001b, 0x003e,0x001d, 0x0040,0x0002, 0x0042,0x0002, - 0x0042,0x0005, 0x0041,0x0006, 0x0042,0x0008, 0x0041,0x0008, 0x0042,0x000d, - 0x0042,0x0011, 0x0042,0x0015, 0x0042,0x0019, 0x0042,0x001b, 0x0042,0x001c, - 0x0041,0x001c, 0x0044,0x0002, 0x0046,0x0003, 0x0045,0x0004, 0x0046,0x0007, - 0x0045,0x0008, 0x0046,0x000b, 0x0046,0x000f, 0x0046,0x0013, 0x0045,0x0012, - 0x0046,0x0017, 0x0046,0x001b, 0x0046,0x0021, 0x0048,0x0002, 0x004a,0x0002, - 0x0048,0x0003, 0x004a,0x0003, 0x0049,0x0002, 0x0048,0x0008, 0x004a,0x0008, - 0x0048,0x0009, 0x004a,0x0009, 0x0049,0x0008, 0x004a,0x000b, 0x004a,0x000f, - 0x004a,0x0011, 0x004a,0x0012, 0x004a,0x0013, 0x004a,0x0015, 0x004a,0x0019, - 0x004a,0x001b, 0x004a,0x001d, 0x004c,0x0002, 0x004c,0x0003, 0x004d,0x0002, - 0x004c,0x0008, 0x004e,0x0008, 0x004c,0x0009, 0x004e,0x0009, 0x004d,0x0008, - 0x004c,0x000b, 0x004e,0x000b, 0x004c,0x000f, 0x004e,0x000f, 0x004e,0x0011, - 0x004c,0x0012, 0x004c,0x0013, 0x004e,0x0013, 0x004e,0x0015, 0x004c,0x0017, - 0x004e,0x0019, 0x004c,0x001b, 0x004e,0x001b, 0x004c,0x001c, 0x004c,0x001d, - 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