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-/**CFile****************************************************************
-
- FileName [fraMan.c]
-
- SystemName [ABC: Logic synthesis and verification system.]
-
- PackageName [New FRAIG package.]
-
- Synopsis [Starts the FRAIG manager.]
-
- Author [Alan Mishchenko]
-
- Affiliation [UC Berkeley]
-
- Date [Ver. 1.0. Started - June 30, 2007.]
-
- Revision [$Id: fraMan.c,v 1.00 2007/06/30 00:00:00 alanmi Exp $]
-
-***********************************************************************/
-
-#include "fra.h"
-
-////////////////////////////////////////////////////////////////////////
-/// DECLARATIONS ///
-////////////////////////////////////////////////////////////////////////
-
-////////////////////////////////////////////////////////////////////////
-/// FUNCTION DEFINITIONS ///
-////////////////////////////////////////////////////////////////////////
-
-/**Function*************************************************************
-
- Synopsis [Sets the default solving parameters.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Fra_ParamsDefault( Fra_Par_t * pPars )
-{
- memset( pPars, 0, sizeof(Fra_Par_t) );
- pPars->nSimWords = 32; // the number of words in the simulation info
- pPars->dSimSatur = 0.005; // the ratio of refined classes when saturation is reached
- pPars->fPatScores = 0; // enables simulation pattern scoring
- pPars->MaxScore = 25; // max score after which resimulation is used
- pPars->fDoSparse = 1; // skips sparse functions
-// pPars->dActConeRatio = 0.05; // the ratio of cone to be bumped
-// pPars->dActConeBumpMax = 5.0; // the largest bump of activity
- pPars->dActConeRatio = 0.3; // the ratio of cone to be bumped
- pPars->dActConeBumpMax = 10.0; // the largest bump of activity
- pPars->nBTLimitNode = 100; // conflict limit at a node
- pPars->nBTLimitMiter = 500000; // conflict limit at an output
- pPars->nFramesK = 0; // the number of timeframes to unroll
- pPars->fConeBias = 1;
- pPars->fRewrite = 0;
-}
-
-/**Function*************************************************************
-
- Synopsis [Sets the default solving parameters.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Fra_ParamsDefaultSeq( Fra_Par_t * pPars )
-{
- memset( pPars, 0, sizeof(Fra_Par_t) );
- pPars->nSimWords = 1; // the number of words in the simulation info
- pPars->dSimSatur = 0.005; // the ratio of refined classes when saturation is reached
- pPars->fPatScores = 0; // enables simulation pattern scoring
- pPars->MaxScore = 25; // max score after which resimulation is used
- pPars->fDoSparse = 1; // skips sparse functions
- pPars->dActConeRatio = 0.3; // the ratio of cone to be bumped
- pPars->dActConeBumpMax = 10.0; // the largest bump of activity
- pPars->nBTLimitNode = 10000000; // conflict limit at a node
- pPars->nBTLimitMiter = 500000; // conflict limit at an output
- pPars->nFramesK = 1; // the number of timeframes to unroll
- pPars->fConeBias = 0;
- pPars->fRewrite = 0;
- pPars->fLatchCorr = 0;
-}
-
-/**Function*************************************************************
-
- Synopsis [Starts the fraiging manager.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-Fra_Man_t * Fra_ManStart( Aig_Man_t * pManAig, Fra_Par_t * pPars )
-{
- Fra_Man_t * p;
- Aig_Obj_t * pObj;
- int i;
- // allocate the fraiging manager
- p = ALLOC( Fra_Man_t, 1 );
- memset( p, 0, sizeof(Fra_Man_t) );
- p->pPars = pPars;
- p->pManAig = pManAig;
- p->nSizeAlloc = Aig_ManObjNumMax( pManAig );
- p->nFramesAll = pPars->nFramesK + 1;
- // allocate storage for sim pattern
- p->nPatWords = Aig_BitWordNum( (Aig_ManPiNum(pManAig) - Aig_ManRegNum(pManAig)) * p->nFramesAll + Aig_ManRegNum(pManAig) );
- p->pPatWords = ALLOC( unsigned, p->nPatWords );
- p->vPiVars = Vec_PtrAlloc( 100 );
- // equivalence classes
- p->pCla = Fra_ClassesStart( pManAig );
- // allocate other members
- p->pMemFraig = ALLOC( Aig_Obj_t *, p->nSizeAlloc * p->nFramesAll );
- memset( p->pMemFraig, 0, sizeof(Aig_Obj_t *) * p->nSizeAlloc * p->nFramesAll );
- // set random number generator
- srand( 0xABCABC );
- // set the pointer to the manager
- Aig_ManForEachObj( p->pManAig, pObj, i )
- pObj->pData = p;
- return p;
-}
-
-/**Function*************************************************************
-
- Synopsis [Starts the fraiging manager.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Fra_ManClean( Fra_Man_t * p, int nNodesMax )
-{
- int i;
- // remove old arrays
- for ( i = 0; i < p->nMemAlloc; i++ )
- if ( p->pMemFanins[i] && p->pMemFanins[i] != (void *)1 )
- Vec_PtrFree( p->pMemFanins[i] );
- // realloc for the new size
- if ( p->nMemAlloc < nNodesMax )
- {
- int nMemAllocNew = nNodesMax + 5000;
- p->pMemFanins = REALLOC( Vec_Ptr_t *, p->pMemFanins, nMemAllocNew );
- p->pMemSatNums = REALLOC( int, p->pMemSatNums, nMemAllocNew );
- p->nMemAlloc = nMemAllocNew;
- }
- // prepare for the new run
- memset( p->pMemFanins, 0, sizeof(Vec_Ptr_t *) * p->nMemAlloc );
- memset( p->pMemSatNums, 0, sizeof(int) * p->nMemAlloc );
-}
-
-/**Function*************************************************************
-
- Synopsis [Prepares the new manager to begin fraiging.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-Aig_Man_t * Fra_ManPrepareComb( Fra_Man_t * p )
-{
- Aig_Man_t * pManFraig;
- Aig_Obj_t * pObj;
- int i;
- assert( p->pManFraig == NULL );
- // start the fraig package
- pManFraig = Aig_ManStart( Aig_ManObjNumMax(p->pManAig) );
- pManFraig->pName = Aig_UtilStrsav( p->pManAig->pName );
- pManFraig->nRegs = p->pManAig->nRegs;
- pManFraig->nAsserts = p->pManAig->nAsserts;
- // set the pointers to the available fraig nodes
- Fra_ObjSetFraig( Aig_ManConst1(p->pManAig), 0, Aig_ManConst1(pManFraig) );
- Aig_ManForEachPi( p->pManAig, pObj, i )
- Fra_ObjSetFraig( pObj, 0, Aig_ObjCreatePi(pManFraig) );
- // set the pointers to the manager
- Aig_ManForEachObj( pManFraig, pObj, i )
- pObj->pData = p;
- // allocate memory for mapping FRAIG nodes into SAT numbers and fanins
- p->nMemAlloc = p->nSizeAlloc;
- p->pMemFanins = ALLOC( Vec_Ptr_t *, p->nMemAlloc );
- memset( p->pMemFanins, 0, sizeof(Vec_Ptr_t *) * p->nMemAlloc );
- p->pMemSatNums = ALLOC( int, p->nMemAlloc );
- memset( p->pMemSatNums, 0, sizeof(int) * p->nMemAlloc );
- // make sure the satisfying assignment is node assigned
- assert( pManFraig->pData == NULL );
- return pManFraig;
-}
-
-/**Function*************************************************************
-
- Synopsis [Finalizes the combinational miter after fraiging.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Fra_ManFinalizeComb( Fra_Man_t * p )
-{
- Aig_Obj_t * pObj;
- int i;
- // add the POs
- Aig_ManForEachPo( p->pManAig, pObj, i )
- Aig_ObjCreatePo( p->pManFraig, Fra_ObjChild0Fra(pObj,0) );
- // postprocess
- Aig_ManCleanMarkB( p->pManFraig );
-}
-
-
-/**Function*************************************************************
-
- Synopsis [Stops the fraiging manager.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Fra_ManStop( Fra_Man_t * p )
-{
- if ( p->pPars->fVerbose )
- Fra_ManPrint( p );
- // save mapping from original nodes into FRAIG nodes
- if ( p->pManAig )
- {
- if ( p->pManAig->pObjCopies )
- free( p->pManAig->pObjCopies );
- p->pManAig->pObjCopies = p->pMemFraig;
- p->pMemFraig = NULL;
- }
- Fra_ManClean( p, 0 );
- if ( p->vTimeouts ) Vec_PtrFree( p->vTimeouts );
- if ( p->vPiVars ) Vec_PtrFree( p->vPiVars );
- if ( p->pSat ) sat_solver_delete( p->pSat );
- if ( p->pCla ) Fra_ClassesStop( p->pCla );
- if ( p->pSml ) Fra_SmlStop( p->pSml );
- if ( p->vCex ) Vec_IntFree( p->vCex );
- FREE( p->pMemFraig );
- FREE( p->pMemFanins );
- FREE( p->pMemSatNums );
- FREE( p->pPatWords );
- free( p );
-}
-
-/**Function*************************************************************
-
- Synopsis [Prints stats for the fraiging manager.]
-
- Description []
-
- SideEffects []
-
- SeeAlso []
-
-***********************************************************************/
-void Fra_ManPrint( Fra_Man_t * p )
-{
- double nMemory = 1.0*Aig_ManObjNumMax(p->pManAig)*(p->pSml->nWordsTotal*sizeof(unsigned)+6*sizeof(void*))/(1<<20);
- printf( "SimWord = %d. Round = %d. Mem = %0.2f Mb. LitBeg = %d. LitEnd = %d. (%6.2f %%).\n",
- p->pPars->nSimWords, p->pSml->nSimRounds, nMemory, p->nLitsBeg, p->nLitsEnd, 100.0*p->nLitsEnd/(p->nLitsBeg?p->nLitsBeg:1) );
- printf( "Proof = %d. Cex = %d. Fail = %d. FailReal = %d. C-lim = %d. ImpRatio = %6.2f %%\n",
- p->nSatProof, p->nSatCallsSat, p->nSatFails, p->nSatFailsReal, p->pPars->nBTLimitNode, Fra_ImpComputeStateSpaceRatio(p) );
- printf( "NBeg = %d. NEnd = %d. (Gain = %6.2f %%). RBeg = %d. REnd = %d. (Gain = %6.2f %%).\n",
- p->nNodesBeg, p->nNodesEnd, 100.0*(p->nNodesBeg-p->nNodesEnd)/(p->nNodesBeg?p->nNodesBeg:1),
- p->nRegsBeg, p->nRegsEnd, 100.0*(p->nRegsBeg-p->nRegsEnd)/(p->nRegsBeg?p->nRegsBeg:1) );
- if ( p->pSat ) Sat_SolverPrintStats( stdout, p->pSat );
- PRT( "AIG simulation ", p->pSml->timeSim );
- PRT( "AIG traversal ", p->timeTrav );
- if ( p->timeRwr )
- {
- PRT( "AIG rewriting ", p->timeRwr );
- }
- PRT( "SAT solving ", p->timeSat );
- PRT( " Unsat ", p->timeSatUnsat );
- PRT( " Sat ", p->timeSatSat );
- PRT( " Fail ", p->timeSatFail );
- PRT( "Class refining ", p->timeRef );
- PRT( "TOTAL RUNTIME ", p->timeTotal );
- if ( p->time1 ) { PRT( "time1 ", p->time1 ); }
- if ( p->nSpeculs )
- printf( "Speculations = %d.\n", p->nSpeculs );
-}
-
-////////////////////////////////////////////////////////////////////////
-/// END OF FILE ///
-////////////////////////////////////////////////////////////////////////
-
-
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