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author | Alan Mishchenko <alanmi@berkeley.edu> | 2008-01-30 08:01:00 -0800 |
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committer | Alan Mishchenko <alanmi@berkeley.edu> | 2008-01-30 08:01:00 -0800 |
commit | 4d30a1e4f1edecff86d5066ce4653a370e59e5e1 (patch) | |
tree | 366355938a4af0a92f848841ac65374f338d691b /src/opt/res/resCore.c | |
parent | 6537f941887b06e588d3acfc97b5fdf48875cc4e (diff) | |
download | abc-4d30a1e4f1edecff86d5066ce4653a370e59e5e1.tar.gz abc-4d30a1e4f1edecff86d5066ce4653a370e59e5e1.tar.bz2 abc-4d30a1e4f1edecff86d5066ce4653a370e59e5e1.zip |
Version abc80130
Diffstat (limited to 'src/opt/res/resCore.c')
-rw-r--r-- | src/opt/res/resCore.c | 419 |
1 files changed, 0 insertions, 419 deletions
diff --git a/src/opt/res/resCore.c b/src/opt/res/resCore.c deleted file mode 100644 index cb448fc0..00000000 --- a/src/opt/res/resCore.c +++ /dev/null @@ -1,419 +0,0 @@ -/**CFile**************************************************************** - - FileName [resCore.c] - - SystemName [ABC: Logic synthesis and verification system.] - - PackageName [Resynthesis package.] - - Synopsis [Top-level resynthesis procedure.] - - Author [Alan Mishchenko] - - Affiliation [UC Berkeley] - - Date [Ver. 1.0. Started - January 15, 2007.] - - Revision [$Id: resCore.c,v 1.00 2007/01/15 00:00:00 alanmi Exp $] - -***********************************************************************/ - -#include "abc.h" -#include "resInt.h" -#include "kit.h" -#include "satStore.h" - -//////////////////////////////////////////////////////////////////////// -/// DECLARATIONS /// -//////////////////////////////////////////////////////////////////////// - -typedef struct Res_Man_t_ Res_Man_t; -struct Res_Man_t_ -{ - // general parameters - Res_Par_t * pPars; - // specialized manager - Res_Win_t * pWin; // windowing manager - Abc_Ntk_t * pAig; // the strashed window - Res_Sim_t * pSim; // simulation manager - Sto_Man_t * pCnf; // the CNF of the SAT problem - Int_Man_t * pMan; // interpolation manager; - Vec_Int_t * vMem; // memory for intermediate SOPs - Vec_Vec_t * vResubs; // resubstitution candidates of the AIG - Vec_Vec_t * vResubsW; // resubstitution candidates of the window - Vec_Vec_t * vLevels; // levelized structure for updating - // statistics - int nWins; // the number of windows tried - int nWinNodes; // the total number of window nodes - int nDivNodes; // the total number of divisors - int nWinsTriv; // the total number of trivial windows - int nWinsUsed; // the total number of useful windows (with at least one candidate) - int nConstsUsed; // the total number of constant nodes under ODC - int nCandSets; // the total number of candidates - int nProvedSets; // the total number of proved groups - int nSimEmpty; // the empty simulation info - int nTotalNets; // the total number of nets - int nTotalNodes; // the total number of nodess - int nTotalNets2; // the total number of nets - int nTotalNodes2; // the total number of nodess - // runtime - int timeWin; // windowing - int timeDiv; // divisors - int timeAig; // strashing - int timeSim; // simulation - int timeCand; // resubstitution candidates - int timeSatTotal; // SAT solving total - int timeSatSat; // SAT solving (sat calls) - int timeSatUnsat; // SAT solving (unsat calls) - int timeSatSim; // SAT solving (simulation) - int timeInt; // interpolation - int timeUpd; // updating - int timeTotal; // total runtime -}; - -extern Hop_Obj_t * Kit_GraphToHop( Hop_Man_t * pMan, Kit_Graph_t * pGraph ); - -extern int s_ResynTime; - -//////////////////////////////////////////////////////////////////////// -/// FUNCTION DEFINITIONS /// -//////////////////////////////////////////////////////////////////////// - -/**Function************************************************************* - - Synopsis [Allocate resynthesis manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -Res_Man_t * Res_ManAlloc( Res_Par_t * pPars ) -{ - Res_Man_t * p; - p = ALLOC( Res_Man_t, 1 ); - memset( p, 0, sizeof(Res_Man_t) ); - assert( pPars->nWindow > 0 && pPars->nWindow < 100 ); - assert( pPars->nCands > 0 && pPars->nCands < 100 ); - p->pPars = pPars; - p->pWin = Res_WinAlloc(); - p->pSim = Res_SimAlloc( pPars->nSimWords ); - p->pMan = Int_ManAlloc(); - p->vMem = Vec_IntAlloc( 0 ); - p->vResubs = Vec_VecStart( pPars->nCands ); - p->vResubsW = Vec_VecStart( pPars->nCands ); - p->vLevels = Vec_VecStart( 32 ); - return p; -} - -/**Function************************************************************* - - Synopsis [Deallocate resynthesis manager.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Res_ManFree( Res_Man_t * p ) -{ - if ( p->pPars->fVerbose ) - { - printf( "Reduction in nodes = %5d. (%.2f %%) ", - p->nTotalNodes-p->nTotalNodes2, - 100.0*(p->nTotalNodes-p->nTotalNodes2)/p->nTotalNodes ); - printf( "Reduction in edges = %5d. (%.2f %%) ", - p->nTotalNets-p->nTotalNets2, - 100.0*(p->nTotalNets-p->nTotalNets2)/p->nTotalNets ); - printf( "\n" ); - - printf( "Winds = %d. ", p->nWins ); - printf( "Nodes = %d. (Ave = %5.1f) ", p->nWinNodes, 1.0*p->nWinNodes/p->nWins ); - printf( "Divs = %d. (Ave = %5.1f) ", p->nDivNodes, 1.0*p->nDivNodes/p->nWins ); - printf( "\n" ); - printf( "WinsTriv = %d. ", p->nWinsTriv ); - printf( "SimsEmpt = %d. ", p->nSimEmpty ); - printf( "Const = %d. ", p->nConstsUsed ); - printf( "WindUsed = %d. ", p->nWinsUsed ); - printf( "Cands = %d. ", p->nCandSets ); - printf( "Proved = %d.", p->nProvedSets ); - printf( "\n" ); - - PRTP( "Windowing ", p->timeWin, p->timeTotal ); - PRTP( "Divisors ", p->timeDiv, p->timeTotal ); - PRTP( "Strashing ", p->timeAig, p->timeTotal ); - PRTP( "Simulation ", p->timeSim, p->timeTotal ); - PRTP( "Candidates ", p->timeCand, p->timeTotal ); - PRTP( "SAT solver ", p->timeSatTotal, p->timeTotal ); - PRTP( " sat ", p->timeSatSat, p->timeTotal ); - PRTP( " unsat ", p->timeSatUnsat, p->timeTotal ); - PRTP( " simul ", p->timeSatSim, p->timeTotal ); - PRTP( "Interpol ", p->timeInt, p->timeTotal ); - PRTP( "Undating ", p->timeUpd, p->timeTotal ); - PRTP( "TOTAL ", p->timeTotal, p->timeTotal ); - } - Res_WinFree( p->pWin ); - if ( p->pAig ) Abc_NtkDelete( p->pAig ); - Res_SimFree( p->pSim ); - if ( p->pCnf ) Sto_ManFree( p->pCnf ); - Int_ManFree( p->pMan ); - Vec_IntFree( p->vMem ); - Vec_VecFree( p->vResubs ); - Vec_VecFree( p->vResubsW ); - Vec_VecFree( p->vLevels ); - free( p ); -} - -/**Function************************************************************* - - Synopsis [Incrementally updates level of the nodes.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -void Res_UpdateNetwork( Abc_Obj_t * pObj, Vec_Ptr_t * vFanins, Hop_Obj_t * pFunc, Vec_Vec_t * vLevels ) -{ - Abc_Obj_t * pObjNew, * pFanin; - int k; - // create the new node - pObjNew = Abc_NtkCreateNode( pObj->pNtk ); - pObjNew->pData = pFunc; - Vec_PtrForEachEntry( vFanins, pFanin, k ) - Abc_ObjAddFanin( pObjNew, pFanin ); - // replace the old node by the new node - // update the level of the node - Abc_NtkUpdate( pObj, pObjNew, vLevels ); -} - -/**Function************************************************************* - - Synopsis [Entrace into the resynthesis package.] - - Description [] - - SideEffects [] - - SeeAlso [] - -***********************************************************************/ -int Abc_NtkResynthesize( Abc_Ntk_t * pNtk, Res_Par_t * pPars ) -{ - ProgressBar * pProgress; - Res_Man_t * p; - Abc_Obj_t * pObj; - Hop_Obj_t * pFunc; - Kit_Graph_t * pGraph; - Vec_Ptr_t * vFanins; - unsigned * puTruth; - int i, k, RetValue, nNodesOld, nFanins, nFaninsMax; - int clk, clkTotal = clock(); - - // start the manager - p = Res_ManAlloc( pPars ); - p->nTotalNets = Abc_NtkGetTotalFanins(pNtk); - p->nTotalNodes = Abc_NtkNodeNum(pNtk); - nFaninsMax = Abc_NtkGetFaninMax(pNtk); - if ( nFaninsMax > 8 ) - nFaninsMax = 8; - - // perform the network sweep - Abc_NtkSweep( pNtk, 0 ); - - // convert into the AIG - if ( !Abc_NtkToAig(pNtk) ) - { - fprintf( stdout, "Converting to BDD has failed.\n" ); - Res_ManFree( p ); - return 0; - } - assert( Abc_NtkHasAig(pNtk) ); - - // set the number of levels - Abc_NtkLevel( pNtk ); - Abc_NtkStartReverseLevels( pNtk, pPars->nGrowthLevel ); - - // try resynthesizing nodes in the topological order - nNodesOld = Abc_NtkObjNumMax(pNtk); - pProgress = Extra_ProgressBarStart( stdout, nNodesOld ); - Abc_NtkForEachObj( pNtk, pObj, i ) - { - Extra_ProgressBarUpdate( pProgress, i, NULL ); - if ( !Abc_ObjIsNode(pObj) ) - continue; - if ( Abc_ObjFaninNum(pObj) > 8 ) - continue; - if ( pObj->Id > nNodesOld ) - break; - - // create the window for this node -clk = clock(); - RetValue = Res_WinCompute( pObj, p->pPars->nWindow/10, p->pPars->nWindow%10, p->pWin ); -p->timeWin += clock() - clk; - if ( !RetValue ) - continue; - p->nWinsTriv += Res_WinIsTrivial( p->pWin ); - - if ( p->pPars->fVeryVerbose ) - { - printf( "%5d (lev=%2d) : ", pObj->Id, pObj->Level ); - printf( "Win = %3d/%3d/%4d/%3d ", - Vec_PtrSize(p->pWin->vLeaves), - Vec_PtrSize(p->pWin->vBranches), - Vec_PtrSize(p->pWin->vNodes), - Vec_PtrSize(p->pWin->vRoots) ); - } - - // collect the divisors -clk = clock(); - Res_WinDivisors( p->pWin, Abc_ObjRequiredLevel(pObj) - 1 ); -p->timeDiv += clock() - clk; - - p->nWins++; - p->nWinNodes += Vec_PtrSize(p->pWin->vNodes); - p->nDivNodes += Vec_PtrSize( p->pWin->vDivs); - - if ( p->pPars->fVeryVerbose ) - { - printf( "D = %3d ", Vec_PtrSize(p->pWin->vDivs) ); - printf( "D+ = %3d ", p->pWin->nDivsPlus ); - } - - // create the AIG for the window -clk = clock(); - if ( p->pAig ) Abc_NtkDelete( p->pAig ); - p->pAig = Res_WndStrash( p->pWin ); -p->timeAig += clock() - clk; - - if ( p->pPars->fVeryVerbose ) - { - printf( "AIG = %4d ", Abc_NtkNodeNum(p->pAig) ); - printf( "\n" ); - } - - // prepare simulation info -clk = clock(); - RetValue = Res_SimPrepare( p->pSim, p->pAig, Vec_PtrSize(p->pWin->vLeaves), 0 ); //p->pPars->fVerbose ); -p->timeSim += clock() - clk; - if ( !RetValue ) - { - p->nSimEmpty++; - continue; - } - - // consider the case of constant node - if ( p->pSim->fConst0 || p->pSim->fConst1 ) - { - p->nConstsUsed++; - - pFunc = p->pSim->fConst1? Hop_ManConst1(pNtk->pManFunc) : Hop_ManConst0(pNtk->pManFunc); - vFanins = Vec_VecEntry( p->vResubsW, 0 ); - Vec_PtrClear( vFanins ); - Res_UpdateNetwork( pObj, vFanins, pFunc, p->vLevels ); - continue; - } - -// printf( " " ); - - // find resub candidates for the node -clk = clock(); - if ( p->pPars->fArea ) - RetValue = Res_FilterCandidates( p->pWin, p->pAig, p->pSim, p->vResubs, p->vResubsW, nFaninsMax, 1 ); - else - RetValue = Res_FilterCandidates( p->pWin, p->pAig, p->pSim, p->vResubs, p->vResubsW, nFaninsMax, 0 ); -p->timeCand += clock() - clk; - p->nCandSets += RetValue; - if ( RetValue == 0 ) - continue; - -// printf( "%d(%d) ", Vec_PtrSize(p->pWin->vDivs), RetValue ); - - p->nWinsUsed++; - - // iterate through candidate resubstitutions - Vec_VecForEachLevel( p->vResubs, vFanins, k ) - { - if ( Vec_PtrSize(vFanins) == 0 ) - break; - - // solve the SAT problem and get clauses -clk = clock(); - if ( p->pCnf ) Sto_ManFree( p->pCnf ); - p->pCnf = Res_SatProveUnsat( p->pAig, vFanins ); - if ( p->pCnf == NULL ) - { -p->timeSatSat += clock() - clk; -// printf( " Sat\n" ); -// printf( "-" ); - continue; - } -p->timeSatUnsat += clock() - clk; -// printf( "+" ); - - p->nProvedSets++; -// printf( " Unsat\n" ); -// continue; -// printf( "Proved %d.\n", k ); - - // write it into a file -// Sto_ManDumpClauses( p->pCnf, "trace.cnf" ); - - // interpolate the problem if it was UNSAT -clk = clock(); - nFanins = Int_ManInterpolate( p->pMan, p->pCnf, 0, &puTruth ); -p->timeInt += clock() - clk; - if ( nFanins != Vec_PtrSize(vFanins) - 2 ) - continue; - assert( puTruth ); -// Extra_PrintBinary( stdout, puTruth, 1 << nFanins ); printf( "\n" ); - - // transform interpolant into the AIG - pGraph = Kit_TruthToGraph( puTruth, nFanins, p->vMem ); - - // derive the AIG for the decomposition tree - pFunc = Kit_GraphToHop( pNtk->pManFunc, pGraph ); - Kit_GraphFree( pGraph ); - - // update the network -clk = clock(); - Res_UpdateNetwork( pObj, Vec_VecEntry(p->vResubsW, k), pFunc, p->vLevels ); -p->timeUpd += clock() - clk; - break; - } -// printf( "\n" ); - } - Extra_ProgressBarStop( pProgress ); - Abc_NtkStopReverseLevels( pNtk ); - -p->timeSatSim += p->pSim->timeSat; -p->timeSatTotal = p->timeSatSat + p->timeSatUnsat + p->timeSatSim; - - p->nTotalNets2 = Abc_NtkGetTotalFanins(pNtk); - p->nTotalNodes2 = Abc_NtkNodeNum(pNtk); - - // quit resubstitution manager -p->timeTotal = clock() - clkTotal; - Res_ManFree( p ); - -s_ResynTime += clock() - clkTotal; - // check the resulting network - if ( !Abc_NtkCheck( pNtk ) ) - { - fprintf( stdout, "Abc_NtkResynthesize(): Network check has failed.\n" ); - return 0; - } - return 1; -} - -//////////////////////////////////////////////////////////////////////// -/// END OF FILE /// -//////////////////////////////////////////////////////////////////////// - - |