/**CFile****************************************************************
FileName [nwkMan.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Logic network representation.]
Synopsis [Network manager.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: nwkMan.c,v 1.1 2008/10/10 14:09:30 mjarvin Exp $]
***********************************************************************/
#include "nwk.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Allocates the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Nwk_Man_t * Nwk_ManAlloc()
{
Nwk_Man_t * p;
p = ABC_ALLOC( Nwk_Man_t, 1 );
memset( p, 0, sizeof(Nwk_Man_t) );
p->vCis = Vec_PtrAlloc( 1000 );
p->vCos = Vec_PtrAlloc( 1000 );
p->vObjs = Vec_PtrAlloc( 1000 );
p->vTemp = Vec_PtrAlloc( 1000 );
p->nFanioPlus = 2;
p->pMemObjs = Aig_MmFlexStart();
p->pManHop = Hop_ManStart();
return p;
}
/**Function*************************************************************
Synopsis [Deallocates the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Nwk_ManFree( Nwk_Man_t * p )
{
// printf( "The number of realloced nodes = %d.\n", p->nRealloced );
if ( p->pName ) ABC_FREE( p->pName );
if ( p->pSpec ) ABC_FREE( p->pSpec );
if ( p->vCis ) Vec_PtrFree( p->vCis );
if ( p->vCos ) Vec_PtrFree( p->vCos );
if ( p->vObjs ) Vec_PtrFree( p->vObjs );
if ( p->vTemp ) Vec_PtrFree( p->vTemp );
if ( p->pManTime ) Tim_ManStop( p->pManTime );
if ( p->pMemObjs ) Aig_MmFlexStop( p->pMemObjs, 0 );
if ( p->pManHop ) Hop_ManStop( p->pManHop );
ABC_FREE( p );
}
/**Function*************************************************************
Synopsis [Prints stats of the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Nwk_ManPrintLutSizes( Nwk_Man_t * p, If_LibLut_t * pLutLib )
{
Nwk_Obj_t * pObj;
int i, Counters[256] = {0};
Nwk_ManForEachNode( p, pObj, i )
Counters[Nwk_ObjFaninNum(pObj)]++;
printf( "LUTs by size: " );
for ( i = 0; i <= pLutLib->LutMax; i++ )
printf( "%d:%d ", i, Counters[i] );
}
/**Function*************************************************************
Synopsis [If the network is best, saves it in "best.blif" and returns 1.]
Description [If the networks are incomparable, saves the new network,
returns its parameters in the internal parameter structure, and returns 1.
If the new network is not a logic network, quits without saving and returns 0.]
SideEffects []
SeeAlso []
***********************************************************************/
int Nwk_ManCompareAndSaveBest( Nwk_Man_t * pNtk, void * pNtl )
{
// extern void Ntl_WriteBlifLogic( Nwk_Man_t * pNtk, void * pNtl, char * pFileName );
extern void Nwk_ManDumpBlif( Nwk_Man_t * pNtk, char * pFileName, Vec_Ptr_t * vPiNames, Vec_Ptr_t * vPoNames );
static struct ParStruct {
char * pName; // name of the best saved network
int Depth; // depth of the best saved network
int Flops; // flops in the best saved network
int Nodes; // nodes in the best saved network
int nPis; // the number of primary inputs
int nPos; // the number of primary outputs
} ParsNew, ParsBest = { 0 };
// free storage for the name
if ( pNtk == NULL )
{
ABC_FREE( ParsBest.pName );
return 0;
}
// get the parameters
ParsNew.Depth = Nwk_ManLevel( pNtk );
ParsNew.Flops = Nwk_ManLatchNum( pNtk );
ParsNew.Nodes = Nwk_ManNodeNum( pNtk );
ParsNew.nPis = Nwk_ManPiNum( pNtk );
ParsNew.nPos = Nwk_ManPoNum( pNtk );
// reset the parameters if the network has the same name
if ( ParsBest.pName == NULL ||
strcmp(ParsBest.pName, pNtk->pName) ||
ParsBest.Depth > ParsNew.Depth ||
(ParsBest.Depth == ParsNew.Depth && ParsBest.Flops > ParsNew.Flops) ||
(ParsBest.Depth == ParsNew.Depth && ParsBest.Flops == ParsNew.Flops && ParsBest.Nodes > ParsNew.Nodes) )
{
ABC_FREE( ParsBest.pName );
ParsBest.pName = Abc_UtilStrsav( pNtk->pName );
ParsBest.Depth = ParsNew.Depth;
ParsBest.Flops = ParsNew.Flops;
ParsBest.Nodes = ParsNew.Nodes;
ParsBest.nPis = ParsNew.nPis;
ParsBest.nPos = ParsNew.nPos;
// write the network
// Ntl_WriteBlifLogic( pNtk, pNtl, "best.blif" );
// Nwk_ManDumpBlif( pNtk, "best_map.blif", NULL, NULL );
return 1;
}
return 0;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
char * Nwk_FileNameGeneric( char * FileName )
{
char * pDot, * pRes;
pRes = Abc_UtilStrsav( FileName );
if ( (pDot = strrchr( pRes, '.' )) )
*pDot = 0;
return pRes;
}
/**Function*************************************************************
Synopsis [Marks nodes for power-optimization.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
float Nwl_ManComputeTotalSwitching( Nwk_Man_t * pNtk )
{
extern Vec_Int_t * Saig_ManComputeSwitchProbs( Aig_Man_t * p, int nFrames, int nPref, int fProbOne );
Vec_Int_t * vSwitching;
float * pSwitching;
Aig_Man_t * pAig;
Aig_Obj_t * pObjAig;
Nwk_Obj_t * pObjAbc;
float Result = (float)0;
int i;
// strash the network
// map network into an AIG
pAig = Nwk_ManStrash( pNtk );
vSwitching = Saig_ManComputeSwitchProbs( pAig, 48, 16, 0 );
pSwitching = (float *)vSwitching->pArray;
Nwk_ManForEachObj( pNtk, pObjAbc, i )
{
if ( (pObjAig = Aig_Regular((Aig_Obj_t *)pObjAbc->pCopy)) )
Result += Nwk_ObjFanoutNum(pObjAbc) * pSwitching[pObjAig->Id];
}
Vec_IntFree( vSwitching );
Aig_ManStop( pAig );
return Result;
}
/**Function*************************************************************
Synopsis [Prints stats of the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Nwk_ManPrintStats( Nwk_Man_t * pNtk, If_LibLut_t * pLutLib, int fSaveBest, int fDumpResult, int fPower, Ntl_Man_t * pNtl )
{
// extern int Ntl_ManLatchNum( Ntl_Man_t * p );
// extern void Ntl_ManWriteBlifLogic( Nwk_Man_t * pNtk, void * pNtl, char * pFileName );
if ( fSaveBest )
Nwk_ManCompareAndSaveBest( pNtk, pNtl );
if ( fDumpResult )
{
char Buffer[1000] = {0};
const char * pNameGen = pNtk->pSpec? Nwk_FileNameGeneric( pNtk->pSpec ) : "nameless_";
sprintf( Buffer, "%s_dump.blif", pNameGen );
// Ntl_ManWriteBlifLogic( pNtk, pNtl, Buffer );
// sprintf( Buffer, "%s_dump_map.blif", pNameGen );
// Nwk_ManDumpBlif( pNtk, Buffer, NULL, NULL );
if ( pNtk->pSpec ) ABC_FREE( pNameGen );
}
pNtk->pLutLib = pLutLib;
printf( "%-15s : ", pNtk->pName );
printf( "pi = %5d ", Nwk_ManPiNum(pNtk) );
printf( "po = %5d ", Nwk_ManPoNum(pNtk) );
printf( "ci = %5d ", Nwk_ManCiNum(pNtk) );
printf( "co = %5d ", Nwk_ManCoNum(pNtk) );
// printf( "lat = %5d ", Ntl_ManLatchNum(pNtl) );
printf( "node = %5d ", Nwk_ManNodeNum(pNtk) );
printf( "edge = %5d ", Nwk_ManGetTotalFanins(pNtk) );
printf( "aig = %6d ", Nwk_ManGetAigNodeNum(pNtk) );
printf( "lev = %3d ", Nwk_ManLevel(pNtk) );
// printf( "lev2 = %3d ", Nwk_ManLevelBackup(pNtk) );
printf( "delay = %5.2f ", Nwk_ManDelayTraceLut(pNtk) );
if ( fPower )
printf( "power = %7.2f ", Nwl_ManComputeTotalSwitching(pNtk) );
Nwk_ManPrintLutSizes( pNtk, pLutLib );
printf( "\n" );
// Nwk_ManDelayTracePrint( pNtk, pLutLib );
fflush( stdout );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END