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Adding switch to control area-recovery and more tuning in &nf.

This commit is contained in:
Alan Mishchenko 2015-08-28 18:42:11 -07:00
parent 04be8af560
commit 362a879d6b
4 changed files with 24 additions and 10 deletions
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1
src/aig/gia/gia.h
View File

@ -278,6 +278,7 @@ struct Jf_Par_t_
int nRelaxRatio;
int nCoarseLimit;
int nAreaTuner;
int nReqTimeFlex;
int nVerbLimit;
int DelayTarget;
int fAreaOnly;

5
src/aig/gia/giaNf.c
View File

@ -132,7 +132,7 @@ static inline int Nf_ObjMapRefDec( Nf_Man_t * p, int i, int c )
static inline float Nf_ObjFlowRefs( Nf_Man_t * p, int i, int c ) { return Vec_FltEntry(&p->vFlowRefs, Abc_Var2Lit(i,c)); }
static inline float Nf_ObjRequired( Nf_Man_t * p, int i, int c ) { return Vec_FltEntry(&p->vRequired, Abc_Var2Lit(i,c)); }
static inline void Nf_ObjSetRequired(Nf_Man_t * p,int i, int c, float f) { Vec_FltWriteEntry(&p->vRequired, Abc_Var2Lit(i,c), f); }
static inline void Nf_ObjUpdateRequired(Nf_Man_t * p,int i, int c, float f) { if (Nf_ObjRequired(p, i, c) > f + p->pPars->Epsilon) Nf_ObjSetRequired(p, i, c, f); }
static inline void Nf_ObjUpdateRequired(Nf_Man_t * p,int i, int c, float f) { if (Nf_ObjRequired(p, i, c) > f) Nf_ObjSetRequired(p, i, c, f); }
static inline Nf_Mat_t * Nf_ObjMatchD( Nf_Man_t * p, int i, int c ) { return &Nf_ManObj(p, i)->M[c][0]; }
static inline Nf_Mat_t * Nf_ObjMatchA( Nf_Man_t * p, int i, int c ) { return &Nf_ManObj(p, i)->M[c][1]; }
@ -1310,7 +1310,7 @@ static inline float Nf_CutRequired( Nf_Man_t * p, Nf_Mat_t * pM, int * pCutSet )
if ( Req < NF_INFINITY )
Required = Abc_MaxFloat( Required, Req + pCell->Delays[i] );
}
return Abc_MaxFloat( Required + 2*p->InvDelay, Arrival );
return Abc_MaxFloat( Required + p->pPars->nReqTimeFlex*p->InvDelay, Arrival );
}
static inline void Nf_ObjComputeRequired( Nf_Man_t * p, int iObj )
{
@ -1851,6 +1851,7 @@ void Nf_ManSetDefaultPars( Jf_Par_t * pPars )
pPars->nRelaxRatio = 0;
pPars->nCoarseLimit = 3;
pPars->nAreaTuner = 1;
pPars->nReqTimeFlex = 0;
pPars->nVerbLimit = 5;
pPars->DelayTarget = -1;
pPars->fAreaOnly = 0;

2
src/base/abc/abcUtil.c
View File

@ -1202,7 +1202,7 @@ int Abc_NtkLogicMakeSimpleCos( Abc_Ntk_t * pNtk, int fDuplicate )
{
pDriver = Abc_ObjFanin0(pNode);
// duplicate if critical
if ( fDuplicate && Abc_ObjIsNode(pDriver) && Abc_ObjLevel(pDriver) == LevelMax )
if ( fDuplicate && Abc_ObjIsNode(pDriver) && (Abc_NtkHasMapping(pNtk) || Abc_ObjLevel(pDriver) == LevelMax) )
{
pDriverNew = Abc_NtkDupObj( pNtk, pDriver, 0 );
Abc_ObjForEachFanin( pDriver, pFanin, k )

26
src/base/abci/abc.c
View File

@ -33549,7 +33549,7 @@ int Abc_CommandAbc9Nf( Abc_Frame_t * pAbc, int argc, char ** argv )
Gia_Man_t * pNew; int c;
Nf_ManSetDefaultPars( pPars );
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "KCFARLEDWapkvwh" ) ) != EOF )
while ( ( c = Extra_UtilGetopt( argc, argv, "KCFARLEDQWapkvwh" ) ) != EOF )
{
switch ( c )
{
@ -33606,7 +33606,7 @@ int Abc_CommandAbc9Nf( Abc_Frame_t * pAbc, int argc, char ** argv )
case 'R':
if ( globalUtilOptind >= argc )
{
Abc_Print( 1, "Command line switch \"-R\" should be followed by a floating point number.\n" );
Abc_Print( 1, "Command line switch \"-R\" should be followed by an integer number.\n" );
return 0;
}
pPars->nRelaxRatio = atoi(argv[globalUtilOptind]);
@ -33617,7 +33617,7 @@ int Abc_CommandAbc9Nf( Abc_Frame_t * pAbc, int argc, char ** argv )
case 'L':
if ( globalUtilOptind >= argc )
{
Abc_Print( 1, "Command line switch \"-R\" should be followed by a floating point number.\n" );
Abc_Print( 1, "Command line switch \"-R\" should be followed by an integer number.\n" );
return 0;
}
pPars->nCoarseLimit = atoi(argv[globalUtilOptind]);
@ -33628,7 +33628,7 @@ int Abc_CommandAbc9Nf( Abc_Frame_t * pAbc, int argc, char ** argv )
case 'E':
if ( globalUtilOptind >= argc )
{
Abc_Print( 1, "Command line switch \"-E\" should be followed by a floating point number.\n" );
Abc_Print( 1, "Command line switch \"-E\" should be followed by an integer number.\n" );
return 0;
}
pPars->nAreaTuner = atoi(argv[globalUtilOptind]);
@ -33639,12 +33639,23 @@ int Abc_CommandAbc9Nf( Abc_Frame_t * pAbc, int argc, char ** argv )
case 'D':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-D\" should be followed by a floating point number.\n" );
Abc_Print( -1, "Command line switch \"-D\" should be followed by an integer number.\n" );
goto usage;
}
pPars->DelayTarget = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( pPars->DelayTarget <= 0.0 )
if ( pPars->DelayTarget <= 0 )
goto usage;
break;
case 'Q':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-D\" should be followed by an integer number.\n" );
goto usage;
}
pPars->nReqTimeFlex = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( pPars->nReqTimeFlex < 0 )
goto usage;
break;
case 'W':
@ -33705,7 +33716,7 @@ usage:
sprintf(Buffer, "best possible" );
else
sprintf(Buffer, "%d", pPars->DelayTarget );
Abc_Print( -2, "usage: &nf [-KCFARLED num] [-akpvwh]\n" );
Abc_Print( -2, "usage: &nf [-KCFARLEDQ num] [-akpvwh]\n" );
Abc_Print( -2, "\t performs technology mapping of the network\n" );
Abc_Print( -2, "\t-K num : LUT size for the mapping (2 <= K <= %d) [default = %d]\n", pPars->nLutSizeMax, pPars->nLutSize );
Abc_Print( -2, "\t-C num : the max number of priority cuts (1 <= C <= %d) [default = %d]\n", pPars->nCutNumMax, pPars->nCutNum );
@ -33715,6 +33726,7 @@ usage:
Abc_Print( -2, "\t-L num : the fanout limit for coarsening XOR/MUX (num >= 2) [default = %d]\n", pPars->nCoarseLimit );
Abc_Print( -2, "\t-E num : the area/edge tradeoff parameter (0 <= num <= 100) [default = %d]\n", pPars->nAreaTuner );
Abc_Print( -2, "\t-D num : sets the delay constraint for the mapping [default = %s]\n", Buffer );
Abc_Print( -2, "\t-Q num : internal parameter impacting area of the mapping [default = %s]\n", Buffer );
Abc_Print( -2, "\t-a : toggles area-oriented mapping [default = %s]\n", pPars->fAreaOnly? "yes": "no" );
Abc_Print( -2, "\t-k : toggles coarsening the subject graph [default = %s]\n", pPars->fCoarsen? "yes": "no" );
Abc_Print( -2, "\t-p : toggles pin-permutation (useful when pin-delays differ) [default = %s]\n", pPars->fPinPerm? "yes": "no" );