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abc/src/aig/dar/darMan.c

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/**CFile****************************************************************
FileName [darMan.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [DAG-aware AIG rewriting.]
Synopsis [AIG manager.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - April 28, 2007.]
Revision [$Id: darMan.c,v 1.00 2007/04/28 00:00:00 alanmi Exp $]
***********************************************************************/
#include "dar.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Starts the AIG manager.]
Description [The argument of this procedure is a soft limit on the
the number of nodes, or 0 if the limit is unknown.]
SideEffects []
SeeAlso []
***********************************************************************/
Dar_Man_t * Dar_ManStart( int nNodesMax )
{
Dar_Man_t * p;
int i;
if ( nNodesMax <= 0 )
nNodesMax = 10007;
// start the manager
p = ALLOC( Dar_Man_t, 1 );
memset( p, 0, sizeof(Dar_Man_t) );
// perform initializations
p->nTravIds = 1;
p->fCatchExor = 0;
// allocate arrays for nodes
p->vPis = Vec_PtrAlloc( 100 );
p->vPos = Vec_PtrAlloc( 100 );
p->vObjs = Vec_PtrAlloc( 1000 );
// prepare the internal memory manager
p->pMemObjs = Dar_MmFixedStart( sizeof(Dar_Obj_t), nNodesMax );
p->pMemCuts = Dar_MmFlexStart();
// prepare storage for cuts
p->nBaseCuts = DAR_CUT_BASE;
for ( i = 0; i < p->nBaseCuts; i++ )
p->pBaseCuts[i] = p->BaseCuts + i;
// create the constant node
p->pConst1 = Dar_ManFetchMemory( p );
p->pConst1->Type = DAR_AIG_CONST1;
p->pConst1->fPhase = 1;
p->nObjs[DAR_AIG_CONST1]++;
// start the table
p->nTableSize = nNodesMax;
p->pTable = ALLOC( Dar_Obj_t *, p->nTableSize );
memset( p->pTable, 0, sizeof(Dar_Obj_t *) * p->nTableSize );
// other data
p->vLeavesBest = Vec_PtrAlloc( 4 );
return p;
}
/**Function*************************************************************
Synopsis [Duplicates the AIG manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Dar_Man_t * Dar_ManStartFrom( Dar_Man_t * p )
{
Dar_Man_t * pNew;
Dar_Obj_t * pObj;
int i;
// create the new manager
pNew = Dar_ManStart( Dar_ManObjIdMax(p) + 1 );
// create the PIs
Dar_ManConst1(p)->pData = Dar_ManConst1(pNew);
Dar_ManForEachPi( p, pObj, i )
pObj->pData = Dar_ObjCreatePi(pNew);
return pNew;
}
/**Function*************************************************************
Synopsis [Duplicates the AIG manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Dar_Man_t * Dar_ManDup( Dar_Man_t * p )
{
Dar_Man_t * pNew;
Dar_Obj_t * pObj;
int i;
// create the new manager
pNew = Dar_ManStart( Dar_ManObjIdMax(p) + 1 );
// create the PIs
Dar_ManConst1(p)->pData = Dar_ManConst1(pNew);
Dar_ManForEachPi( p, pObj, i )
pObj->pData = Dar_ObjCreatePi(pNew);
// duplicate internal nodes
Dar_ManForEachObj( p, pObj, i )
if ( Dar_ObjIsBuf(pObj) )
pObj->pData = Dar_ObjChild0Copy(pObj);
else if ( Dar_ObjIsNode(pObj) )
pObj->pData = Dar_And( pNew, Dar_ObjChild0Copy(pObj), Dar_ObjChild1Copy(pObj) );
// add the POs
Dar_ManForEachPo( p, pObj, i )
Dar_ObjCreatePo( pNew, Dar_ObjChild0Copy(pObj) );
// check the resulting network
if ( !Dar_ManCheck(pNew) )
printf( "Dar_ManDup(): The check has failed.\n" );
return pNew;
}
/**Function*************************************************************
Synopsis [Stops the AIG manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Dar_ManStop( Dar_Man_t * p )
{
Dar_Obj_t * pObj;
int i;
// make sure the nodes have clean marks
Dar_ManForEachObj( p, pObj, i )
assert( !pObj->fMarkA && !pObj->fMarkB );
// print time
if ( p->time1 ) { PRT( "time1", p->time1 ); }
if ( p->time2 ) { PRT( "time2", p->time2 ); }
// Dar_TableProfile( p );
Dar_MmFixedStop( p->pMemObjs, 0 );
Dar_MmFlexStop( p->pMemCuts, 0 );
if ( p->vPis ) Vec_PtrFree( p->vPis );
if ( p->vPos ) Vec_PtrFree( p->vPos );
if ( p->vObjs ) Vec_PtrFree( p->vObjs );
if ( p->vRequired ) Vec_IntFree( p->vRequired );
if ( p->vLeavesBest ) Vec_PtrFree( p->vLeavesBest );
free( p->pTable );
free( p );
}
/**Function*************************************************************
Synopsis [Returns the number of dangling nodes removed.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Dar_ManCleanup( Dar_Man_t * p )
{
Vec_Ptr_t * vObjs;
Dar_Obj_t * pNode;
int i, nNodesOld;
nNodesOld = Dar_ManNodeNum(p);
// collect roots of dangling nodes
vObjs = Vec_PtrAlloc( 100 );
Dar_ManForEachObj( p, pNode, i )
if ( Dar_ObjIsNode(pNode) && Dar_ObjRefs(pNode) == 0 )
Vec_PtrPush( vObjs, pNode );
// recursively remove dangling nodes
Vec_PtrForEachEntry( vObjs, pNode, i )
Dar_ObjDelete_rec( p, pNode, 1 );
Vec_PtrFree( vObjs );
return nNodesOld - Dar_ManNodeNum(p);
}
/**Function*************************************************************
Synopsis [Stops the AIG manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Dar_ManPrintStats( Dar_Man_t * p )
{
printf( "PI/PO/Lat = %5d/%5d/%5d ", Dar_ManPiNum(p), Dar_ManPoNum(p), Dar_ManLatchNum(p) );
printf( "A = %6d. ", Dar_ManAndNum(p) );
if ( Dar_ManExorNum(p) )
printf( "X = %5d. ", Dar_ManExorNum(p) );
if ( Dar_ManBufNum(p) )
printf( "B = %3d. ", Dar_ManBufNum(p) );
printf( "Cre = %6d. ", p->nCreated );
printf( "Del = %6d. ", p->nDeleted );
// printf( "Lev = %3d. ", Dar_ManCountLevels(p) );
printf( "\n" );
}
/**Function*************************************************************
Synopsis [Stops the AIG manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Dar_ManPrintRuntime( Dar_Man_t * p )
{
int i, Gain;
printf( "Good cuts = %d. Bad cuts = %d. Cut mem = %d Mb\n",
p->nCutsGood, p->nCutsBad, p->nCutMemUsed );
PRT( "Cuts ", p->timeCuts );
PRT( "Eval ", p->timeEval );
PRT( "Other ", p->timeOther );
PRT( "TOTAL ", p->timeTotal );
Gain = p->nNodesInit - Dar_ManNodeNum(p);
for ( i = 0; i < 222; i++ )
{
if ( p->ClassGains[i] == 0 && p->ClassTimes[i] == 0 )
continue;
printf( "%3d : ", i );
printf( "G = %6d (%5.2f %%) ", p->ClassGains[i], Gain? 100.0*p->ClassGains[i]/Gain : 0.0 );
printf( "S = %8d (%5.2f %%) ", p->ClassSubgs[i], p->nTotalSubgs? 100.0*p->ClassSubgs[i]/p->nTotalSubgs : 0.0 );
printf( "R = %7d ", p->ClassGains[i]? p->ClassSubgs[i]/p->ClassGains[i] : 9999999 );
PRTP( "T", p->ClassTimes[i], p->timeEval );
}
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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