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/**CFile****************************************************************
FileName [rwtMan.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [DAG-aware AIG rewriting package.]
Synopsis [Rewriting manager.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: rwtMan.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "rwt.h"
#include "deco.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
static unsigned short * s_puCanons = NULL;
static char * s_pPhases = NULL;
static char * s_pPerms = NULL;
static unsigned char * s_pMap = NULL;
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Starts residual rewriting manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Rwt_ManGlobalStart()
{
if ( s_puCanons == NULL )
Extra_Truth4VarNPN( &s_puCanons, &s_pPhases, &s_pPerms, &s_pMap );
}
/**Function*************************************************************
Synopsis [Starts residual rewriting manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Rwt_ManGlobalStop()
{
FREE( s_puCanons );
FREE( s_pPhases );
FREE( s_pPerms );
FREE( s_pMap );
}
/**Function*************************************************************
Synopsis [Starts rewriting manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Rwt_Man_t * Rwt_ManStart( int fPrecompute )
{
Rwt_Man_t * p;
int clk = clock();
clk = clock();
p = ALLOC( Rwt_Man_t, 1 );
memset( p, 0, sizeof(Rwt_Man_t) );
p->nFuncs = (1<<16);
// copy the global tables
Rwt_ManGlobalStart();
p->puCanons = s_puCanons;
p->pPhases = s_pPhases;
p->pPerms = s_pPerms;
p->pMap = s_pMap;
// initialize practical NPN classes
p->pPractical = Rwt_ManGetPractical( p );
// create the table
p->pTable = ALLOC( Rwt_Node_t *, p->nFuncs );
memset( p->pTable, 0, sizeof(Rwt_Node_t *) * p->nFuncs );
// create the elementary nodes
p->pMmNode = Mem_FixedStart( sizeof(Rwt_Node_t) );
p->vForest = Vec_PtrAlloc( 100 );
Rwt_ManAddVar( p, 0x0000, fPrecompute ); // constant 0
Rwt_ManAddVar( p, 0xAAAA, fPrecompute ); // var A
Rwt_ManAddVar( p, 0xCCCC, fPrecompute ); // var B
Rwt_ManAddVar( p, 0xF0F0, fPrecompute ); // var C
Rwt_ManAddVar( p, 0xFF00, fPrecompute ); // var D
p->nClasses = 5;
// other stuff
p->nTravIds = 1;
p->pPerms4 = Extra_Permutations( 4 );
p->vLevNums = Vec_IntAlloc( 50 );
p->vFanins = Vec_PtrAlloc( 50 );
p->vFaninsCur = Vec_PtrAlloc( 50 );
p->vNodesTemp = Vec_PtrAlloc( 50 );
if ( fPrecompute )
{ // precompute subgraphs
// Rwt_ManPrecompute( p );
// Rwt_ManPrint( p );
// Rwt_ManWriteToArray( p );
}
else
{ // load saved subgraphs
Rwt_ManLoadFromArray( p, 0 );
// Rwt_ManPrint( p );
Rwt_ManPreprocess( p );
}
p->timeStart = clock() - clk;
return p;
}
/**Function*************************************************************
Synopsis [Stops rewriting manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Rwt_ManStop( Rwt_Man_t * p )
{
if ( p->vClasses )
{
Rwt_Node_t * pNode;
int i, k;
Vec_VecForEachEntry( p->vClasses, pNode, i, k )
Dec_GraphFree( (Dec_Graph_t *)pNode->pNext );
}
if ( p->vClasses ) Vec_VecFree( p->vClasses );
Vec_PtrFree( p->vNodesTemp );
Vec_PtrFree( p->vForest );
Vec_IntFree( p->vLevNums );
Vec_PtrFree( p->vFanins );
Vec_PtrFree( p->vFaninsCur );
Mem_FixedStop( p->pMmNode, 0 );
FREE( p->pMapInv );
free( p->pTable );
free( p->pPractical );
free( p->pPerms4 );
free( p );
}
/**Function*************************************************************
Synopsis [Stops the resynthesis manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Rwt_ManPrintStats( Rwt_Man_t * p )
{
int i, Counter = 0;
for ( i = 0; i < 222; i++ )
Counter += (p->nScores[i] > 0);
printf( "Rewriting statistics:\n" );
printf( "Total cuts tries = %8d.\n", p->nCutsGood );
printf( "Bad cuts found = %8d.\n", p->nCutsBad );
printf( "Total subgraphs = %8d.\n", p->nSubgraphs );
printf( "Used NPN classes = %8d.\n", Counter );
printf( "Nodes considered = %8d.\n", p->nNodesConsidered );
printf( "Nodes rewritten = %8d.\n", p->nNodesRewritten );
printf( "Calculated gain = %8d.\n", p->nNodesGained );
PRT( "Start ", p->timeStart );
PRT( "Cuts ", p->timeCut );
PRT( "Truth ", p->timeTruth );
PRT( "Resynthesis ", p->timeRes );
PRT( " Mffc ", p->timeMffc );
PRT( " Eval ", p->timeEval );
PRT( "Update ", p->timeUpdate );
PRT( "TOTAL ", p->timeTotal );
/*
printf( "The scores are:\n" );
for ( i = 0; i < 222; i++ )
if ( p->nScores[i] > 0 )
{
extern void Ivy_TruthDsdComputePrint( unsigned uTruth );
printf( "%3d = %8d canon = %5d ", i, p->nScores[i], p->pMapInv[i] );
Ivy_TruthDsdComputePrint( (unsigned)p->pMapInv[i] | ((unsigned)p->pMapInv[i] << 16) );
}
printf( "\n" );
*/
}
/**Function*************************************************************
Synopsis [Stops the resynthesis manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Rwt_ManPrintStatsFile( Rwt_Man_t * p )
{
FILE * pTable;
pTable = fopen( "stats.txt", "a+" );
fprintf( pTable, "%d ", p->nCutsGood );
fprintf( pTable, "%d ", p->nSubgraphs );
fprintf( pTable, "%d ", p->nNodesRewritten );
fprintf( pTable, "%d", p->nNodesGained );
fprintf( pTable, "\n" );
fclose( pTable );
}
/**Function*************************************************************
Synopsis [Stops the resynthesis manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void * Rwt_ManReadDecs( Rwt_Man_t * p )
{
return p->pGraph;
}
/**Function*************************************************************
Synopsis [Stops the resynthesis manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Vec_Ptr_t * Rwt_ManReadLeaves( Rwt_Man_t * p )
{
return p->vFanins;
}
/**Function*************************************************************
Synopsis [Stops the resynthesis manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Rwt_ManReadCompl( Rwt_Man_t * p )
{
return p->fCompl;
}
/**Function*************************************************************
Synopsis [Stops the resynthesis manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Rwt_ManAddTimeCuts( Rwt_Man_t * p, int Time )
{
p->timeCut += Time;
}
/**Function*************************************************************
Synopsis [Stops the resynthesis manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Rwt_ManAddTimeUpdate( Rwt_Man_t * p, int Time )
{
p->timeUpdate += Time;
}
/**Function*************************************************************
Synopsis [Stops the resynthesis manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Rwt_ManAddTimeTotal( Rwt_Man_t * p, int Time )
{
p->timeTotal += Time;
}
/**Function*************************************************************
Synopsis [Precomputes AIG subgraphs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Rwt_Precompute()
{
Rwt_Man_t * p;
p = Rwt_ManStart( 1 );
Rwt_ManStop( p );
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
|
