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/**CFile****************************************************************
FileName [cutMan.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [K-feasible cut computation package.]
Synopsis [Cut manager.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - June 20, 2005.]
Revision [$Id: cutMan.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $]
***********************************************************************/
#include "cutInt.h"
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
extern void Npn_StartTruth8( uint8 uTruths[][32] );
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Starts the cut manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Cut_Man_t * Cut_ManStart( Cut_Params_t * pParams )
{
Cut_Man_t * p;
int clk = clock();
assert( pParams->nVarsMax >= 3 && pParams->nVarsMax <= CUT_SIZE_MAX );
p = ALLOC( Cut_Man_t, 1 );
memset( p, 0, sizeof(Cut_Man_t) );
// set and correct parameters
p->pParams = pParams;
// prepare storage for cuts
p->vCutsNew = Vec_PtrAlloc( pParams->nIdsMax );
Vec_PtrFill( p->vCutsNew, pParams->nIdsMax, NULL );
// prepare storage for sequential cuts
if ( pParams->fSeq )
{
p->pParams->fFilter = 1;
p->vCutsOld = Vec_PtrAlloc( pParams->nIdsMax );
Vec_PtrFill( p->vCutsOld, pParams->nIdsMax, NULL );
p->vCutsTemp = Vec_PtrAlloc( pParams->nCutSet );
Vec_PtrFill( p->vCutsTemp, pParams->nCutSet, NULL );
}
assert( !pParams->fTruth || pParams->nVarsMax <= 5 );
// entry size
p->EntrySize = sizeof(Cut_Cut_t) + pParams->nVarsMax * sizeof(int);
if ( pParams->fTruth )
{
if ( pParams->nVarsMax > 8 )
{
pParams->fTruth = 0;
printf( "Skipping computation of truth table for more than 8 inputs.\n" );
}
else
{
p->nTruthWords = Cut_TruthWords( pParams->nVarsMax );
p->EntrySize += p->nTruthWords * sizeof(unsigned);
}
}
// enable cut computation recording
if ( pParams->fRecord )
{
p->vNodeCuts = Vec_IntStart( pParams->nIdsMax );
p->vNodeStarts = Vec_IntStart( pParams->nIdsMax );
p->vCutPairs = Vec_IntAlloc( 0 );
}
// memory for cuts
p->pMmCuts = Extra_MmFixedStart( p->EntrySize );
p->vTemp = Vec_PtrAlloc( 100 );
return p;
}
/**Function*************************************************************
Synopsis [Stops the cut manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Cut_ManStop( Cut_Man_t * p )
{
Cut_Cut_t * pCut;
int i;
Vec_PtrForEachEntry( p->vCutsNew, pCut, i )
if ( pCut != NULL )
{
int k = 0;
}
if ( p->vCutsNew ) Vec_PtrFree( p->vCutsNew );
if ( p->vCutsOld ) Vec_PtrFree( p->vCutsOld );
if ( p->vCutsTemp ) Vec_PtrFree( p->vCutsTemp );
if ( p->vFanCounts ) Vec_IntFree( p->vFanCounts );
if ( p->vTemp ) Vec_PtrFree( p->vTemp );
if ( p->vNodeCuts ) Vec_IntFree( p->vNodeCuts );
if ( p->vNodeStarts ) Vec_IntFree( p->vNodeStarts );
if ( p->vCutPairs ) Vec_IntFree( p->vCutPairs );
Extra_MmFixedStop( p->pMmCuts, 0 );
free( p );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Cut_ManPrintStats( Cut_Man_t * p )
{
if ( p->pReady )
{
Cut_CutRecycle( p, p->pReady );
p->pReady = NULL;
}
printf( "Cut computation statistics:\n" );
printf( "Current cuts = %8d. (Trivial = %d.)\n", p->nCutsCur-p->nCutsTriv, p->nCutsTriv );
printf( "Peak cuts = %8d.\n", p->nCutsPeak );
printf( "Total allocated = %8d.\n", p->nCutsAlloc );
printf( "Total deallocated = %8d.\n", p->nCutsDealloc );
printf( "Cuts filtered = %8d.\n", p->nCutsFilter );
printf( "Nodes saturated = %8d. (Max cuts = %d.)\n", p->nCutsLimit, p->pParams->nKeepMax );
printf( "Cuts per node = %8.1f\n", ((float)(p->nCutsCur-p->nCutsTriv))/p->nNodes );
printf( "The cut size = %8d bytes.\n", p->EntrySize );
printf( "Peak memory = %8.2f Mb.\n", (float)p->nCutsPeak * p->EntrySize / (1<<20) );
PRT( "Merge ", p->timeMerge );
PRT( "Union ", p->timeUnion );
PRT( "Filter", p->timeFilter );
PRT( "Truth ", p->timeTruth );
// printf( "Nodes = %d. Multi = %d. Cuts = %d. Multi = %d.\n",
// p->nNodes, p->nNodesMulti, p->nCutsCur-p->nCutsTriv, p->nCutsMulti );
// printf( "Count0 = %d. Count1 = %d. Count2 = %d.\n\n", p->Count0, p->Count1, p->Count2 );
}
/**Function*************************************************************
Synopsis [Prints some interesting stats.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Cut_ManPrintStatsToFile( Cut_Man_t * p, char * pFileName, int TimeTotal )
{
FILE * pTable;
pTable = fopen( "cut_stats.txt", "a+" );
fprintf( pTable, "%-20s ", pFileName );
fprintf( pTable, "%8d ", p->nNodes );
fprintf( pTable, "%6.1f ", ((float)(p->nCutsCur))/p->nNodes );
fprintf( pTable, "%6.2f ", ((float)(100.0 * p->nCutsLimit))/p->nNodes );
fprintf( pTable, "%6.2f ", (float)p->nCutsPeak * p->EntrySize / (1<<20) );
fprintf( pTable, "%6.2f ", (float)(TimeTotal)/(float)(CLOCKS_PER_SEC) );
fprintf( pTable, "\n" );
fclose( pTable );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Cut_ManSetFanoutCounts( Cut_Man_t * p, Vec_Int_t * vFanCounts )
{
p->vFanCounts = vFanCounts;
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Cut_ManReadVarsMax( Cut_Man_t * p )
{
return p->pParams->nVarsMax;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
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