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/**CFile****************************************************************
FileName [dchMan.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Choice computation for tech-mapping.]
Synopsis [Calls to the SAT solver.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 29, 2008.]
Revision [$Id: dchMan.c,v 1.00 2008/07/29 00:00:00 alanmi Exp $]
***********************************************************************/
#include "dchInt.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Creates the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Dch_Man_t * Dch_ManCreate( Aig_Man_t * pAig, Dch_Pars_t * pPars )
{
Dch_Man_t * p;
// create interpolation manager
p = ABC_ALLOC( Dch_Man_t, 1 );
memset( p, 0, sizeof(Dch_Man_t) );
p->pPars = pPars;
p->pAigTotal = pAig; //Dch_DeriveTotalAig( vAigs );
Aig_ManFanoutStart( p->pAigTotal );
// SAT solving
p->nSatVars = 1;
p->pSatVars = ABC_CALLOC( int, Aig_ManObjNumMax(p->pAigTotal) );
p->vUsedNodes = Vec_PtrAlloc( 1000 );
p->vFanins = Vec_PtrAlloc( 100 );
p->vSimRoots = Vec_PtrAlloc( 1000 );
p->vSimClasses = Vec_PtrAlloc( 1000 );
// equivalences proved
p->pReprsProved = ABC_CALLOC( Aig_Obj_t *, Aig_ManObjNumMax(p->pAigTotal) );
return p;
}
/**Function*************************************************************
Synopsis [Prints stats of the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Dch_ManPrintStats( Dch_Man_t * p )
{
int nNodeNum = Aig_ManNodeNum(p->pAigTotal) / 3;
Abc_Print( 1, "Parameters: Sim words = %d. Conf limit = %d. SAT var max = %d.\n",
p->pPars->nWords, p->pPars->nBTLimit, p->pPars->nSatVarMax );
Abc_Print( 1, "AIG nodes : Total = %6d. Dangling = %6d. Main = %6d. (%6.2f %%)\n",
Aig_ManNodeNum(p->pAigTotal),
Aig_ManNodeNum(p->pAigTotal)-nNodeNum,
nNodeNum,
100.0 * nNodeNum/Aig_ManNodeNum(p->pAigTotal) );
Abc_Print( 1, "SAT solver: Vars = %d. Max cone = %d. Recycles = %d.\n",
p->nSatVars, p->nConeMax, p->nRecycles );
Abc_Print( 1, "SAT calls : All = %6d. Unsat = %6d. Sat = %6d. Fail = %6d.\n",
p->nSatCalls, p->nSatCalls-p->nSatCallsSat-p->nSatFailsReal,
p->nSatCallsSat, p->nSatFailsReal );
Abc_Print( 1, "Choices : Lits = %6d. Reprs = %5d. Equivs = %5d. Choices = %5d.\n",
p->nLits, p->nReprs, p->nEquivs, p->nChoices );
Abc_Print( 1, "Choicing runtime statistics:\n" );
p->timeOther = p->timeTotal-p->timeSimInit-p->timeSimSat-p->timeSat-p->timeChoice;
Abc_PrintTimeP( 1, "Sim init ", p->timeSimInit, p->timeTotal );
Abc_PrintTimeP( 1, "Sim SAT ", p->timeSimSat, p->timeTotal );
Abc_PrintTimeP( 1, "SAT solving", p->timeSat, p->timeTotal );
Abc_PrintTimeP( 1, " sat ", p->timeSatSat, p->timeTotal );
Abc_PrintTimeP( 1, " unsat ", p->timeSatUnsat, p->timeTotal );
Abc_PrintTimeP( 1, " undecided", p->timeSatUndec, p->timeTotal );
Abc_PrintTimeP( 1, "Choice ", p->timeChoice, p->timeTotal );
Abc_PrintTimeP( 1, "Other ", p->timeOther, p->timeTotal );
Abc_PrintTimeP( 1, "TOTAL ", p->timeTotal, p->timeTotal );
if ( p->pPars->timeSynth )
{
Abc_PrintTime( 1, "Synthesis ", p->pPars->timeSynth );
}
}
/**Function*************************************************************
Synopsis [Frees the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Dch_ManStop( Dch_Man_t * p )
{
Aig_ManFanoutStop( p->pAigTotal );
if ( p->pPars->fVerbose )
Dch_ManPrintStats( p );
if ( p->pAigFraig )
Aig_ManStop( p->pAigFraig );
if ( p->ppClasses )
Dch_ClassesStop( p->ppClasses );
if ( p->pSat )
sat_solver_delete( p->pSat );
Vec_PtrFree( p->vUsedNodes );
Vec_PtrFree( p->vFanins );
Vec_PtrFree( p->vSimRoots );
Vec_PtrFree( p->vSimClasses );
ABC_FREE( p->pReprsProved );
ABC_FREE( p->pSatVars );
ABC_FREE( p );
}
/**Function*************************************************************
Synopsis [Recycles the SAT solver.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Dch_ManSatSolverRecycle( Dch_Man_t * p )
{
int Lit;
if ( p->pSat )
{
Aig_Obj_t * pObj;
int i;
Vec_PtrForEachEntry( Aig_Obj_t *, p->vUsedNodes, pObj, i )
Dch_ObjSetSatNum( p, pObj, 0 );
Vec_PtrClear( p->vUsedNodes );
// memset( p->pSatVars, 0, sizeof(int) * Aig_ManObjNumMax(p->pAigTotal) );
sat_solver_delete( p->pSat );
}
p->pSat = sat_solver_new();
sat_solver_setnvars( p->pSat, 1000 );
// var 0 is not used
// var 1 is reserved for const1 node - add the clause
p->nSatVars = 1;
// p->nSatVars = 0;
Lit = toLit( p->nSatVars );
if ( p->pPars->fPolarFlip )
Lit = lit_neg( Lit );
sat_solver_addclause( p->pSat, &Lit, &Lit + 1 );
Dch_ObjSetSatNum( p, Aig_ManConst1(p->pAigFraig), p->nSatVars++ );
p->nRecycles++;
p->nCallsSince = 0;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
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