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Depth optimal synthesis.

This commit is contained in:
Mathias Soeken 2016-07-30 15:21:57 +02:00
parent 59077dab9f
commit a6352369a5
1 changed files with 18 additions and 7 deletions
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25
src/base/abci/abcExact.c
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@ -1111,8 +1111,8 @@ int Abc_ExactDelayCost( word * pTruth, int nVars, int * pArrTimeProfile, char *
{
int l;
Ses_Man_t * pSes;
char * pSol, * p;
int Delay;
char * pSol = NULL, * p;
int Delay = ABC_INFINITY, nMaxDepth = nVars - 1;
abctime timeStart;
/* some checks */
@ -1120,12 +1120,25 @@ int Abc_ExactDelayCost( word * pTruth, int nVars, int * pArrTimeProfile, char *
timeStart = Abc_Clock();
pSes = Ses_ManAlloc( pTruth, nVars, 1, nVars - 1, pArrTimeProfile, 1, 0 );
*Cost = ABC_INFINITY;
if ( Ses_ManFindMinimumSize( pSes ) )
pSes = Ses_ManAlloc( pTruth, nVars, 1 /* fSpecFunc */, nMaxDepth, pArrTimeProfile, 1 /* fMakeAIG */, 0 );
while ( 1 ) /* there is improvement */
{
pSol = Ses_ManExtractSolution( pSes );
if ( Ses_ManFindMinimumSize( pSes ) )
{
if ( pSol )
ABC_FREE( pSol );
pSol = Ses_ManExtractSolution( pSes );
pSes->nMaxDepth--;
}
else
break;
}
if ( pSol )
{
*Cost = pSol[ABC_EXACT_SOL_NGATES];
p = pSol + 3 + 4 * ABC_EXACT_SOL_NGATES + 1;
Delay = *p++;
@ -1134,8 +1147,6 @@ int Abc_ExactDelayCost( word * pTruth, int nVars, int * pArrTimeProfile, char *
ABC_FREE( pSol );
}
else
*Cost = Delay = ABC_INFINITY;
pSes->timeTotal = Abc_Clock() - timeStart;