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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->nTimeFrames = 0; // the number of timeframes to unroll
pPars->fConeBias = 1;
}
/**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 = 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 = 1000000; // conflict limit at a node
pPars->nBTLimitMiter = 500000; // conflict limit at an output
pPars->nTimeFrames = 1; // the number of timeframes to unroll
pPars->fConeBias = 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;
// 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_ManObjIdMax( pManAig ) + 1;
p->nFrames = pPars->nTimeFrames + 1;
// allocate simulation info
p->nSimWords = pPars->nSimWords * p->nFrames;
p->pSimWords = ALLOC( unsigned, p->nSizeAlloc * p->nSimWords * p->nFrames );
// clean simulation info of the constant node
memset( p->pSimWords, 0, sizeof(unsigned) * p->nSizeAlloc * p->nSimWords * p->nFrames );
// allocate storage for sim pattern
p->nPatWords = Aig_BitWordNum( Aig_ManPiNum(pManAig) );
p->pPatWords = ALLOC( unsigned, p->nPatWords );
p->pPatScores = ALLOC( int, 32 * p->nSimWords );
p->vPiVars = Vec_PtrAlloc( 100 );
p->vTimeouts = Vec_PtrAlloc( 100 );
// equivalence classes
p->pCla = Fra_ClassesStart( pManAig );
// allocate other members
p->pMemFraig = ALLOC( Aig_Obj_t *, p->nSizeAlloc * p->nFrames );
memset( p->pMemFraig, 0, sizeof(Aig_Obj_t *) * p->nSizeAlloc * p->nFrames );
p->pMemFanins = ALLOC( Vec_Ptr_t *, p->nSizeAlloc * p->nFrames );
memset( p->pMemFanins, 0, sizeof(Vec_Ptr_t *) * p->nSizeAlloc * p->nFrames );
p->pMemSatNums = ALLOC( int, p->nSizeAlloc * p->nFrames );
memset( p->pMemSatNums, 0, sizeof(int) * p->nSizeAlloc * p->nFrames );
// set random number generator
srand( 0xABCABC );
return p;
}
/**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 );
// set the pointer to the manager
Aig_ManForEachObj( p->pManAig, pObj, i )
pObj->pData = p;
// start the fraig package
pManFraig = Aig_ManStart( Aig_ManObjIdMax(p->pManAig) + 1 );
// 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;
// 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 )
{
int i;
for ( i = 0; i < p->nSizeAlloc; i++ )
if ( p->pMemFanins[i] )
Vec_PtrFree( p->pMemFanins[i] );
if ( p->pPars->fVerbose )
Fra_ManPrint( p );
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 );
FREE( p->pMemFraig );
FREE( p->pMemFanins );
FREE( p->pMemSatNums );
FREE( p->pPatScores );
FREE( p->pPatWords );
FREE( p->pSimWords );
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_ManObjIdMax(p->pManAig)*((p->nSimWords+2)*sizeof(unsigned)+6*sizeof(void*))/(1<<20);
printf( "SimWords = %d. Rounds = %d. Mem = %0.2f Mb. ", p->nSimWords, p->nSimRounds, nMemory );
printf( "Classes: Beg = %d. End = %d.\n", p->nClassesBeg, p->nClassesEnd );
printf( "Limits: BTNode = %d. BTMiter = %d.\n", p->pPars->nBTLimitNode, p->pPars->nBTLimitMiter );
printf( "Proof = %d. Counter-example = %d. Fail = %d. FailReal = %d. Zero = %d.\n",
p->nSatProof, p->nSatCallsSat, p->nSatFails, p->nSatFailsReal, p->nClassesZero );
printf( "Final = %d. Miter = %d. Total = %d. Mux = %d. (Exor = %d.) SatVars = %d.\n",
p->pManFraig? Aig_ManNodeNum(p->pManFraig) : -1, p->nNodesMiter, Aig_ManNodeNum(p->pManAig), 0, 0, p->nSatVars );
if ( p->pSat ) Sat_SolverPrintStats( stdout, p->pSat );
PRT( "AIG simulation ", p->timeSim );
PRT( "AIG traversal ", p->timeTrav );
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 ); }
printf( "Speculations = %d.\n", p->nSpeculs );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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