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/**CFile****************************************************************
FileName [giaDeep.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [Scalable AIG package.]
Synopsis [Experiments with synthesis.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: giaDeep.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "gia.h"
#include "base/main/main.h"
#include "base/cmd/cmd.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Gia_Man_t * Gia_ManDeepSynOne( int nNoImpr, int TimeOut, int nAnds, int Seed, int fUseTwo, int fVerbose )
{
abctime nTimeToStop = TimeOut ? Abc_Clock() + TimeOut * CLOCKS_PER_SEC : 0;
abctime clkStart = Abc_Clock();
int s, i, IterMax = 100000, nAndsMin = -1, iIterLast = -1;
Gia_Man_t * pTemp = Abc_FrameReadGia(Abc_FrameGetGlobalFrame());
Gia_Man_t * pNew = Gia_ManDup( pTemp );
Abc_Random(1);
for ( s = 0; s < 10+Seed; s++ )
Abc_Random(0);
for ( i = 0; i < IterMax; i++ )
{
unsigned Rand = Abc_Random(0);
int fDch = Rand & 1;
//int fCom = (Rand >> 1) & 3;
int fCom = (Rand >> 1) & 1;
int fFx = (Rand >> 2) & 1;
int KLut = fUseTwo ? 2 + (i % 5) : 3 + (i % 4);
int fChange = 0;
char Command[1000];
char * pComp = NULL;
if ( fCom == 3 )
pComp = "; &put; compress2rs; compress2rs; compress2rs; &get";
else if ( fCom == 2 )
pComp = "; &put; compress2rs; compress2rs; &get";
else if ( fCom == 1 )
pComp = "; &put; compress2rs; &get";
else if ( fCom == 0 )
pComp = "; &dc2";
sprintf( Command, "&dch%s; &if -a -K %d; &mfs -e -W 20 -L 20%s%s",
fDch ? " -f" : "", KLut, fFx ? "; &fx" : "", pComp );
if ( Abc_FrameIsBatchMode() )
{
if ( Cmd_CommandExecute(Abc_FrameGetGlobalFrame(), Command) )
{
Abc_Print( 1, "Something did not work out with the command \"%s\".\n", Command );
return NULL;
}
}
else
{
Abc_FrameSetBatchMode( 1 );
if ( Cmd_CommandExecute(Abc_FrameGetGlobalFrame(), Command) )
{
Abc_Print( 1, "Something did not work out with the command \"%s\".\n", Command );
return NULL;
}
Abc_FrameSetBatchMode( 0 );
}
pTemp = Abc_FrameReadGia(Abc_FrameGetGlobalFrame());
if ( Gia_ManAndNum(pNew) > Gia_ManAndNum(pTemp) )
{
Gia_ManStop( pNew );
pNew = Gia_ManDup( pTemp );
fChange = 1;
iIterLast = i;
}
else if ( Gia_ManAndNum(pNew) + Gia_ManAndNum(pNew)/10 < Gia_ManAndNum(pTemp) )
{
//printf( "Updating\n" );
//Abc_FrameUpdateGia( Abc_FrameGetGlobalFrame(), Gia_ManDup(pNew) );
}
if ( fChange && fVerbose )
{
printf( "Iter %6d : ", i );
printf( "Time %8.2f sec : ", (float)1.0*(Abc_Clock() - clkStart)/CLOCKS_PER_SEC );
printf( "And = %6d ", Gia_ManAndNum(pNew) );
printf( "Lev = %3d ", Gia_ManLevelNum(pNew) );
if ( fChange )
printf( "<== best : " );
else if ( fVerbose )
printf( " " );
printf( "%s", Command );
printf( "\n" );
}
if ( nTimeToStop && Abc_Clock() > nTimeToStop )
{
printf( "Runtime limit (%d sec) is reached after %d iterations.\n", TimeOut, i );
break;
}
if ( i - iIterLast > nNoImpr )
{
printf( "Completed %d iterations without improvement in %.2f seconds.\n",
nNoImpr, (float)1.0*(Abc_Clock() - clkStart)/CLOCKS_PER_SEC );
break;
}
}
if ( i == IterMax )
printf( "Iteration limit (%d iters) is reached after %.2f seconds.\n", IterMax, (float)1.0*(Abc_Clock() - clkStart)/CLOCKS_PER_SEC );
else if ( nAnds && nAndsMin <= nAnds )
printf( "Quality goal (%d nodes <= %d nodes) is achieved after %d iterations and %.2f seconds.\n",
nAndsMin, nAnds, i, (float)1.0*(Abc_Clock() - clkStart)/CLOCKS_PER_SEC );
return pNew;
}
Gia_Man_t * Gia_ManDeepSyn( Gia_Man_t * pGia, int nIters, int nNoImpr, int TimeOut, int nAnds, int Seed, int fUseTwo, int fVerbose )
{
Gia_Man_t * pInit = Gia_ManDup(pGia);
Gia_Man_t * pBest = Gia_ManDup(pGia);
Gia_Man_t * pThis;
int i;
for ( i = 0; i < nIters; i++ )
{
Abc_FrameUpdateGia( Abc_FrameGetGlobalFrame(), Gia_ManDup(pInit) );
pThis = Gia_ManDeepSynOne( nNoImpr, TimeOut, nAnds, Seed+i, fUseTwo, fVerbose );
if ( Gia_ManAndNum(pBest) > Gia_ManAndNum(pThis) )
{
Gia_ManStop( pBest );
pBest = pThis;
}
else
Gia_ManStop( pThis );
}
Gia_ManStop( pInit );
return pBest;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
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