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Improvements to the standard cell flow.

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This commit is contained in:
Alan Mishchenko
2013-11-08 15:16:13 -08:00
parent 5021909cb1
commit e70adbcd2d
7 changed files with 34 additions and 14 deletions
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src/map/scl/scl.c
+1 -1
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@@ -871,7 +871,7 @@ int Scl_CommandBuffer( Abc_Frame_t * pAbc, int argc, char ** argv )
Abc_Ntk_t * pNtkRes, * pNtk = Abc_FrameReadNtk(pAbc);
int c;
memset( pPars, 0, sizeof(SC_BusPars) );
pPars->GainRatio = 250;
pPars->GainRatio = 300;
pPars->Slew = pAbc->pLibScl ? Abc_SclComputeAverageSlew((SC_Lib *)pAbc->pLibScl) : 100;
pPars->nDegree = 10;
pPars->fSizeOnly = 0;
src/map/scl/sclBufSize.c
+7 -11
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@@ -384,16 +384,15 @@ Abc_Obj_t * Abc_SclAddOneInv( Bus_Man_t * p, Abc_Obj_t * pObj, Vec_Ptr_t * vFano
Abc_NodeInvUpdateFanPolarity( pInv );
return pInv;
}
void Abc_SclBufSize( Bus_Man_t * p )
void Abc_SclBufSize( Bus_Man_t * p, float Gain )
{
SC_Cell * pCell, * pCellNew;
Abc_Obj_t * pObj, * pFanout;
abctime clk = Abc_Clock();
int nObjsOld = Abc_NtkObjNumMax(p->pNtk);
float GainInv = 0.01 * p->pPars->GainRatio;
float GainGate = (float)1.0 * GainInv;
float Load, LoadNew, Cin, DeptMax = 0;
int i, k, nObjOld = Abc_NtkObjNumMax(p->pNtk);
int i, k, nObjsOld = Abc_NtkObjNumMax(p->pNtk);
float GainGate, GainInv, Load, LoadNew, Cin, DeptMax = 0;
GainGate = p->pPars->fAddBufs ? pow( Gain, 2.0 ) : Gain;
GainInv = p->pPars->fAddBufs ? pow( Gain, 2.0 ) : Gain;
Abc_NtkForEachObjReverse( p->pNtk, pObj, i )
{
if ( !((Abc_ObjIsNode(pObj) && Abc_ObjFaninNum(pObj) > 0) || (Abc_ObjIsCi(pObj) && p->pPiDrive)) )
@@ -473,7 +472,7 @@ void Abc_SclBufSize( Bus_Man_t * p )
{
printf( "WireLoads = %d Degree = %d Target slew =%4d ps Gain2 =%5d Buf = %6d Delay =%7.0f ps ",
p->pPars->fUseWireLoads, p->pPars->nDegree, p->pPars->Slew, p->pPars->GainRatio,
Abc_NtkObjNumMax(p->pNtk) - nObjOld, DeptMax );
Abc_NtkObjNumMax(p->pNtk) - nObjsOld, DeptMax );
Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
}
}
@@ -483,14 +482,11 @@ Abc_Ntk_t * Abc_SclBufferingPerform( Abc_Ntk_t * pNtk, SC_Lib * pLib, SC_BusPars
Bus_Man_t * p;
if ( !Abc_SclCheckNtk( pNtk, 0 ) )
return NULL;
// update gain if buffers are used
if ( pPars->fAddBufs )
pPars->GainRatio = pPars->GainRatio * pPars->GainRatio / 100;
Abc_SclReportDupFanins( pNtk );
Abc_SclMioGates2SclGates( pLib, pNtk );
p = Bus_ManStart( pNtk, pLib, pPars );
Bus_ManReadInOutLoads( p );
Abc_SclBufSize( p );
Abc_SclBufSize( p, 0.01 * pPars->GainRatio );
Bus_ManStop( p );
Abc_SclSclGates2MioGates( pLib, pNtk );
if ( pNtk->vPhases )
src/map/scl/sclSize.h
+1 -1
View File
@@ -517,7 +517,7 @@ static inline void Abc_SclDumpStats( SC_Man * p, char * pFileName, abctime Time
{
sprintf( FileNameOld, "%s", p->pNtk->pName );
fprintf( pTable, "\n" );
fprintf( pTable, "%s ", p->pNtk->pName );
fprintf( pTable, "%s ", Extra_FileNameWithoutPath(p->pNtk->pName) );
fprintf( pTable, "%d ", Abc_NtkPiNum(p->pNtk) );
fprintf( pTable, "%d ", Abc_NtkPoNum(p->pNtk) );
fprintf( pTable, "%d ", (nNodesOld = Abc_NtkNodeNum(p->pNtk)) );