/**Function*************************************************************
Synopsis [Implementation of retiming.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_NtkRetime( Abc_Ntk_t * pNtk, int Mode, int fForwardOnly, int fBackwardOnly, int fOneStep, int fVerbose )
{
int nLatches = Abc_NtkLatchNum(pNtk);
int nLevels = Abc_NtkLevel(pNtk);
int RetValue = 0, clkTotal = clock();
int nNodesOld, nLatchesOld;
assert( Mode > 0 && Mode < 7 );
assert( !fForwardOnly || !fBackwardOnly );
// cleanup the network
nNodesOld = Abc_NtkNodeNum(pNtk);
nLatchesOld = Abc_NtkLatchNum(pNtk);
Abc_NtkCleanupSeq(pNtk, 0, 0, 0);
if ( nNodesOld > Abc_NtkNodeNum(pNtk) || nLatchesOld > Abc_NtkLatchNum(pNtk) )
printf( "Cleanup before retiming removed %d dangling nodes and %d dangling latches.\n",
nNodesOld - Abc_NtkNodeNum(pNtk), nLatchesOld - Abc_NtkLatchNum(pNtk) );
// perform retiming
switch ( Mode )
{
case 1: // forward
RetValue = Abc_NtkRetimeIncremental( pNtk, 1, 0, 0, fVerbose );
break;
case 2: // backward
RetValue = Abc_NtkRetimeIncremental( pNtk, 0, 0, 0, fVerbose );
break;
case 3: // min-area
RetValue = Abc_NtkRetimeMinArea( pNtk, fForwardOnly, fBackwardOnly, fVerbose );
break;
case 4: // min-delay
if ( !fBackwardOnly )
RetValue += Abc_NtkRetimeIncremental( pNtk, 1, 1, fOneStep, fVerbose );
if ( !fForwardOnly )
RetValue += Abc_NtkRetimeIncremental( pNtk, 0, 1, fOneStep, fVerbose );
break;
case 5: // min-area + min-delay
RetValue = Abc_NtkRetimeMinArea( pNtk, fForwardOnly, fBackwardOnly, fVerbose );
if ( !fBackwardOnly )
RetValue += Abc_NtkRetimeIncremental( pNtk, 1, 1, 0, fVerbose );
if ( !fForwardOnly )
RetValue += Abc_NtkRetimeIncremental( pNtk, 0, 1, 0, fVerbose );
break;
case 6: // Pan's algorithm
RetValue = Abc_NtkRetimeLValue( pNtk, 500, fVerbose );
break;
default:
printf( "Unknown retiming option.\n" );
break;
}
if ( fVerbose )
{
printf( "Reduction in area = %3d. Reduction in delay = %3d. ",
nLatches - Abc_NtkLatchNum(pNtk), nLevels - Abc_NtkLevel(pNtk) );
PRT( "Total runtime", clock() - clkTotal );
}
timeRetime = clock() - clkTotal;
return RetValue;
}
/**Function*************************************************************
Synopsis [Performs retiming in one direction.]
Description [Currently does not retime over black boxes.]
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_NtkRetimeIncremental( Abc_Ntk_t * pNtk, int nDelayLim, int fForward, int fMinDelay, int fOneStep, int fVerbose )
{
Abc_Ntk_t * pNtkCopy = NULL;
Vec_Ptr_t * vBoxes;
st__table * tLatches;
int nLatches = Abc_NtkLatchNum(pNtk);
int nIdMaxStart = Abc_NtkObjNumMax(pNtk);
int RetValue;
int nIterLimit = -1; // Suppress "might be used uninitialized"
if ( Abc_NtkNodeNum(pNtk) == 0 )
return 0;
// reorder CI/CO/latch inputs
Abc_NtkOrderCisCos( pNtk );
if ( fMinDelay )
{
nIterLimit = fOneStep? 1 : 2 * Abc_NtkLevel(pNtk);
pNtkCopy = Abc_NtkDup( pNtk );
tLatches = Abc_NtkRetimePrepareLatches( pNtkCopy );
st__free_table( tLatches );
}
// collect latches and remove CIs/COs
tLatches = Abc_NtkRetimePrepareLatches( pNtk );
// share the latches
Abc_NtkRetimeShareLatches( pNtk, 0 );
// save boxes
vBoxes = pNtk->vBoxes; pNtk->vBoxes = NULL;
// perform the retiming
if ( fMinDelay )
Abc_NtkRetimeMinDelay( pNtk, pNtkCopy, nDelayLim, nIterLimit, fForward, fVerbose );
else
Abc_NtkRetimeOneWay( pNtk, fForward, fVerbose );
if ( fMinDelay )
Abc_NtkDelete( pNtkCopy );
// share the latches
Abc_NtkRetimeShareLatches( pNtk, 0 );
// restore boxes
pNtk->vBoxes = vBoxes;
// finalize the latches
RetValue = Abc_NtkRetimeFinalizeLatches( pNtk, tLatches, nIdMaxStart );
st__free_table( tLatches );
if ( RetValue == 0 )
return 0;
// fix the COs
// Abc_NtkLogicMakeSimpleCos( pNtk, 0 );
// check for correctness
if ( !Abc_NtkCheck( pNtk ) )
fprintf( stdout, "Abc_NtkRetimeForward(): Network check has failed.\n" );
// return the number of latches saved
return nLatches - Abc_NtkLatchNum(pNtk);
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Abc_NtkMfs( Abc_Ntk_t * pNtk, Mfs_Par_t * pPars )
{
extern Aig_Man_t * Abc_NtkToDar( Abc_Ntk_t * pNtk, int fExors, int fRegisters );
Bdc_Par_t Pars = {0}, * pDecPars = &Pars;
ProgressBar * pProgress;
Mfs_Man_t * p;
Abc_Obj_t * pObj;
Vec_Vec_t * vLevels;
Vec_Ptr_t * vNodes;
int i, k, nNodes, nFaninMax;
abctime clk = Abc_Clock(), clk2;
int nTotalNodesBeg = Abc_NtkNodeNum(pNtk);
int nTotalEdgesBeg = Abc_NtkGetTotalFanins(pNtk);
assert( Abc_NtkIsLogic(pNtk) );
nFaninMax = Abc_NtkGetFaninMax(pNtk);
if ( pPars->fResub )
{
if ( nFaninMax > 8 )
{
printf( "Nodes with more than %d fanins will not be processed.\n", 8 );
nFaninMax = 8;
}
}
else
{
if ( nFaninMax > MFS_FANIN_MAX )
{
printf( "Nodes with more than %d fanins will not be processed.\n", MFS_FANIN_MAX );
nFaninMax = MFS_FANIN_MAX;
}
}
// perform the network sweep
// Abc_NtkSweep( pNtk, 0 );
// convert into the AIG
if ( !Abc_NtkToAig(pNtk) )
{
fprintf( stdout, "Converting to AIGs has failed.\n" );
return 0;
}
assert( Abc_NtkHasAig(pNtk) );
// start the manager
p = Mfs_ManAlloc( pPars );
p->pNtk = pNtk;
p->nFaninMax = nFaninMax;
// precomputer power-aware metrics
if ( pPars->fPower )
{
extern Vec_Int_t * Abc_NtkPowerEstimate( Abc_Ntk_t * pNtk, int fProbOne );
if ( pPars->fResub )
p->vProbs = Abc_NtkPowerEstimate( pNtk, 0 );
else
p->vProbs = Abc_NtkPowerEstimate( pNtk, 1 );
#if 0
printf( "Total switching before = %7.2f.\n", Abc_NtkMfsTotalSwitching(pNtk) );
#else
p->TotalSwitchingBeg = Abc_NtkMfsTotalSwitching(pNtk);
#endif
}
if ( pNtk->pExcare )
{
Abc_Ntk_t * pTemp;
if ( Abc_NtkPiNum((Abc_Ntk_t *)pNtk->pExcare) != Abc_NtkCiNum(pNtk) )
printf( "The PI count of careset (%d) and logic network (%d) differ. Careset is not used.\n",
Abc_NtkPiNum((Abc_Ntk_t *)pNtk->pExcare), Abc_NtkCiNum(pNtk) );
else
{
pTemp = Abc_NtkStrash( (Abc_Ntk_t *)pNtk->pExcare, 0, 0, 0 );
p->pCare = Abc_NtkToDar( pTemp, 0, 0 );
Abc_NtkDelete( pTemp );
p->vSuppsInv = Aig_ManSupportsInverse( p->pCare );
}
}
if ( p->pCare != NULL )
printf( "Performing optimization with %d external care clauses.\n", Aig_ManCoNum(p->pCare) );
// prepare the BDC manager
if ( !pPars->fResub )
{
pDecPars->nVarsMax = (nFaninMax < 3) ? 3 : nFaninMax;
pDecPars->fVerbose = pPars->fVerbose;
p->vTruth = Vec_IntAlloc( 0 );
p->pManDec = Bdc_ManAlloc( pDecPars );
}
// label the register outputs
if ( p->pCare )
{
Abc_NtkForEachCi( pNtk, pObj, i )
pObj->pData = (void *)(ABC_PTRUINT_T)i;
}
// compute levels
Abc_NtkLevel( pNtk );
Abc_NtkStartReverseLevels( pNtk, pPars->nGrowthLevel );
// compute don't-cares for each node
nNodes = 0;
p->nTotalNodesBeg = nTotalNodesBeg;
p->nTotalEdgesBeg = nTotalEdgesBeg;
if ( pPars->fResub )
{
#if 0
printf( "TotalSwitching (%7.2f --> ", Abc_NtkMfsTotalSwitching(pNtk) );
#endif
if (pPars->fPower)
{
Abc_NtkMfsPowerResub( p, pPars);
} else
{
pProgress = Extra_ProgressBarStart( stdout, Abc_NtkObjNumMax(pNtk) );
Abc_NtkForEachNode( pNtk, pObj, i )
{
if ( p->pPars->nDepthMax && (int)pObj->Level > p->pPars->nDepthMax )
continue;
if ( Abc_ObjFaninNum(pObj) < 2 || Abc_ObjFaninNum(pObj) > nFaninMax )
continue;
if ( !p->pPars->fVeryVerbose )
Extra_ProgressBarUpdate( pProgress, i, NULL );
if ( pPars->fResub )
Abc_NtkMfsResub( p, pObj );
else
Abc_NtkMfsNode( p, pObj );
}
Extra_ProgressBarStop( pProgress );
#if 0
printf( " %7.2f )\n", Abc_NtkMfsTotalSwitching(pNtk) );
#endif
}
} else
/**Function*************************************************************
Synopsis [Performs minimum-register retiming.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Abc_Ntk_t *
Abc_FlowRetime_MinReg( Abc_Ntk_t * pNtk, int fVerbose,
int fComputeInitState, int fGuaranteeInitState, int fBlockConst,
int fForwardOnly, int fBackwardOnly, int nMaxIters,
int maxDelay, int fFastButConservative ) {
int i;
Abc_Obj_t *pObj, *pNext;
InitConstraint_t *pData;
// create manager
pManMR = ALLOC( MinRegMan_t, 1 );
pManMR->pNtk = pNtk;
pManMR->fVerbose = fVerbose;
pManMR->fComputeInitState = fComputeInitState;
pManMR->fGuaranteeInitState = fGuaranteeInitState;
pManMR->fBlockConst = fBlockConst;
pManMR->fForwardOnly = fForwardOnly;
pManMR->fBackwardOnly = fBackwardOnly;
pManMR->nMaxIters = nMaxIters;
pManMR->maxDelay = maxDelay;
pManMR->fComputeInitState = fComputeInitState;
pManMR->fConservTimingOnly = fFastButConservative;
pManMR->vNodes = Vec_PtrAlloc(100);
pManMR->vInitConstraints = Vec_PtrAlloc(2);
pManMR->pInitNtk = NULL;
pManMR->pInitToOrig = NULL;
pManMR->sizeInitToOrig = 0;
vprintf("Flow-based minimum-register retiming...\n");
if (!Abc_NtkHasOnlyLatchBoxes(pNtk)) {
printf("\tERROR: Can not retime with black/white boxes\n");
return pNtk;
}
if (maxDelay) {
vprintf("\tmax delay constraint = %d\n", maxDelay);
if (maxDelay < (i = Abc_NtkLevel(pNtk))) {
printf("ERROR: max delay constraint (%d) must be > current max delay (%d)\n", maxDelay, i);
return pNtk;
}
}
// print info about type of network
vprintf("\tnetlist type = ");
if (Abc_NtkIsNetlist( pNtk )) { vprintf("netlist/"); }
else if (Abc_NtkIsLogic( pNtk )) { vprintf("logic/"); }
else if (Abc_NtkIsStrash( pNtk )) { vprintf("strash/"); }
else { vprintf("***unknown***/"); }
if (Abc_NtkHasSop( pNtk )) { vprintf("sop\n"); }
else if (Abc_NtkHasBdd( pNtk )) { vprintf("bdd\n"); }
else if (Abc_NtkHasAig( pNtk )) { vprintf("aig\n"); }
else if (Abc_NtkHasMapping( pNtk )) { vprintf("mapped\n"); }
else { vprintf("***unknown***\n"); }
vprintf("\tinitial reg count = %d\n", Abc_NtkLatchNum(pNtk));
vprintf("\tinitial levels = %d\n", Abc_NtkLevel(pNtk));
// remove bubbles from latch boxes
if (pManMR->fVerbose) Abc_FlowRetime_PrintInitStateInfo(pNtk);
vprintf("\tpushing bubbles out of latch boxes\n");
Abc_NtkForEachLatch( pNtk, pObj, i )
Abc_FlowRetime_RemoveLatchBubbles(pObj);
if (pManMR->fVerbose) Abc_FlowRetime_PrintInitStateInfo(pNtk);
// check for box inputs/outputs
Abc_NtkForEachLatch( pNtk, pObj, i ) {
assert(Abc_ObjFaninNum(pObj) == 1);
assert(Abc_ObjFanoutNum(pObj) == 1);
assert(!Abc_ObjFaninC0(pObj));
pNext = Abc_ObjFanin0(pObj);
assert(Abc_ObjIsBi(pNext));
assert(Abc_ObjFaninNum(pNext) <= 1);
if(Abc_ObjFaninNum(pNext) == 0) // every Bi should have a fanin
Abc_FlowRetime_AddDummyFanin( pNext );
pNext = Abc_ObjFanout0(pObj);
assert(Abc_ObjIsBo(pNext));
assert(Abc_ObjFaninNum(pNext) == 1);
assert(!Abc_ObjFaninC0(pNext));
}
/**Function*************************************************************
Synopsis [Write the network into file.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Io_Write( Abc_Ntk_t * pNtk, char * pFileName, Io_FileType_t FileType )
{
Abc_Ntk_t * pNtkTemp, * pNtkCopy;
// check if the current network is available
if ( pNtk == NULL )
{
fprintf( stdout, "Empty network.\n" );
return;
}
// check if the file extension if given
if ( FileType == IO_FILE_NONE || FileType == IO_FILE_UNKNOWN )
{
fprintf( stdout, "The generic file writer requires a known file extension.\n" );
return;
}
// write the AIG formats
if ( FileType == IO_FILE_AIGER || FileType == IO_FILE_BAF )
{
if ( !Abc_NtkIsStrash(pNtk) )
{
fprintf( stdout, "Writing this format is only possible for structurally hashed AIGs.\n" );
return;
}
if ( FileType == IO_FILE_AIGER )
Io_WriteAiger( pNtk, pFileName, 1 );
else // if ( FileType == IO_FILE_BAF )
Io_WriteBaf( pNtk, pFileName );
return;
}
// write non-netlist types
if ( FileType == IO_FILE_CNF )
{
Io_WriteCnf( pNtk, pFileName, 0 );
return;
}
if ( FileType == IO_FILE_DOT )
{
Io_WriteDot( pNtk, pFileName );
return;
}
if ( FileType == IO_FILE_GML )
{
Io_WriteGml( pNtk, pFileName );
return;
}
/*
if ( FileType == IO_FILE_BLIFMV )
{
Io_WriteBlifMv( pNtk, pFileName );
return;
}
*/
// convert logic network into netlist
if ( FileType == IO_FILE_PLA )
{
if ( Abc_NtkLevel(pNtk) > 1 )
{
fprintf( stdout, "PLA writing is available for collapsed networks.\n" );
return;
}
if ( Abc_NtkIsComb(pNtk) )
pNtkTemp = Abc_NtkToNetlist( pNtk );
else
{
fprintf( stdout, "Latches are writen into the PLA file at PI/PO pairs.\n" );
pNtkCopy = Abc_NtkDup( pNtk );
Abc_NtkMakeComb( pNtkCopy );
pNtkTemp = Abc_NtkToNetlist( pNtk );
Abc_NtkDelete( pNtkCopy );
}
if ( !Abc_NtkToSop( pNtk, 1 ) )
return;
}
else if ( FileType == IO_FILE_BENCH )
{
if ( !Abc_NtkIsStrash(pNtk) )
{
fprintf( stdout, "Writing traditional BENCH is available for AIGs only (use \"write_bench\").\n" );
return;
}
pNtkTemp = Abc_NtkToNetlistBench( pNtk );
}
else
pNtkTemp = Abc_NtkToNetlist( pNtk );
if ( pNtkTemp == NULL )
{
fprintf( stdout, "Converting to netlist has failed.\n" );
return;
}
if ( FileType == IO_FILE_BLIF )
{
if ( !Abc_NtkHasSop(pNtkTemp) && !Abc_NtkHasMapping(pNtkTemp) )
Abc_NtkToSop( pNtkTemp, 0 );
Io_WriteBlif( pNtkTemp, pFileName, 1 );
}
else if ( FileType == IO_FILE_BLIFMV )
{
if ( !Abc_NtkConvertToBlifMv( pNtkTemp ) )
return;
Io_WriteBlifMv( pNtkTemp, pFileName );
}
else if ( FileType == IO_FILE_BENCH )
Io_WriteBench( pNtkTemp, pFileName );
else if ( FileType == IO_FILE_PLA )
Io_WritePla( pNtkTemp, pFileName );
else if ( FileType == IO_FILE_EQN )
{
if ( !Abc_NtkHasAig(pNtkTemp) )
Abc_NtkToAig( pNtkTemp );
Io_WriteEqn( pNtkTemp, pFileName );
}
else if ( FileType == IO_FILE_VERILOG )
{
if ( !Abc_NtkHasAig(pNtkTemp) && !Abc_NtkHasMapping(pNtkTemp) )
Abc_NtkToAig( pNtkTemp );
Io_WriteVerilog( pNtkTemp, pFileName );
}
else
fprintf( stderr, "Unknown file format.\n" );
Abc_NtkDelete( pNtkTemp );
}
/**Function*************************************************************
Synopsis [Writes the graph structure of network for DOT.]
Description [Useful for graph visualization using tools such as GraphViz:
http://www.graphviz.org/]
SideEffects []
SeeAlso []
***********************************************************************/
void Io_WriteDotNtk( Abc_Ntk_t * pNtk, Vec_Ptr_t * vNodes, Vec_Ptr_t * vNodesShow, char * pFileName, int fGateNames, int fUseReverse )
{
FILE * pFile;
Abc_Obj_t * pNode, * pFanin;
char * pSopString;
int LevelMin, LevelMax, fHasCos, Level, i, k, fHasBdds, fCompl;
int Limit = 300;
assert( Abc_NtkIsStrash(pNtk) || Abc_NtkIsLogic(pNtk) );
if ( vNodes->nSize < 1 )
{
printf( "The set has no nodes. DOT file is not written.\n" );
return;
}
if ( vNodes->nSize > Limit )
{
printf( "The set has more than %d nodes. DOT file is not written.\n", Limit );
return;
}
// start the stream
if ( (pFile = fopen( pFileName, "w" )) == NULL )
{
fprintf( stdout, "Cannot open the intermediate file \"%s\".\n", pFileName );
return;
}
// transform logic functions from BDD to SOP
if ( fHasBdds = Abc_NtkIsBddLogic(pNtk) )
{
if ( !Abc_NtkBddToSop(pNtk, 0) )
{
printf( "Io_WriteDotNtk(): Converting to SOPs has failed.\n" );
return;
}
}
// mark the nodes from the set
Vec_PtrForEachEntry( vNodes, pNode, i )
pNode->fMarkC = 1;
if ( vNodesShow )
Vec_PtrForEachEntry( vNodesShow, pNode, i )
pNode->fMarkB = 1;
// get the levels of nodes
LevelMax = Abc_NtkLevel( pNtk );
if ( fUseReverse )
{
LevelMin = Abc_NtkLevelReverse( pNtk );
assert( LevelMax == LevelMin );
Vec_PtrForEachEntry( vNodes, pNode, i )
if ( Abc_ObjIsNode(pNode) )
pNode->Level = LevelMax - pNode->Level + 1;
}
// find the largest and the smallest levels
LevelMin = 10000;
LevelMax = -1;
fHasCos = 0;
Vec_PtrForEachEntry( vNodes, pNode, i )
{
if ( Abc_ObjIsCo(pNode) )
{
fHasCos = 1;
continue;
}
if ( LevelMin > (int)pNode->Level )
LevelMin = pNode->Level;
if ( LevelMax < (int)pNode->Level )
LevelMax = pNode->Level;
}
// set the level of the CO nodes
if ( fHasCos )
{
LevelMax++;
Vec_PtrForEachEntry( vNodes, pNode, i )
{
if ( Abc_ObjIsCo(pNode) )
pNode->Level = LevelMax;
}
}
// write the DOT header
fprintf( pFile, "# %s\n", "Network structure generated by ABC" );
fprintf( pFile, "\n" );
fprintf( pFile, "digraph network {\n" );
fprintf( pFile, "size = \"7.5,10\";\n" );
// fprintf( pFile, "size = \"10,8.5\";\n" );
// fprintf( pFile, "size = \"14,11\";\n" );
// fprintf( pFile, "page = \"8,11\";\n" );
// fprintf( pFile, "ranksep = 0.5;\n" );
// fprintf( pFile, "nodesep = 0.5;\n" );
fprintf( pFile, "center = true;\n" );
// fprintf( pFile, "orientation = landscape;\n" );
// fprintf( pFile, "edge [fontsize = 10];\n" );
// fprintf( pFile, "edge [dir = none];\n" );
fprintf( pFile, "edge [dir = back];\n" );
fprintf( pFile, "\n" );
// labels on the left of the picture
fprintf( pFile, "{\n" );
fprintf( pFile, " node [shape = plaintext];\n" );
fprintf( pFile, " edge [style = invis];\n" );
fprintf( pFile, " LevelTitle1 [label=\"\"];\n" );
fprintf( pFile, " LevelTitle2 [label=\"\"];\n" );
// generate node names with labels
for ( Level = LevelMax; Level >= LevelMin; Level-- )
{
// the visible node name
fprintf( pFile, " Level%d", Level );
fprintf( pFile, " [label = " );
// label name
fprintf( pFile, "\"" );
fprintf( pFile, "\"" );
fprintf( pFile, "];\n" );
}
// genetate the sequence of visible/invisible nodes to mark levels
fprintf( pFile, " LevelTitle1 -> LevelTitle2 ->" );
for ( Level = LevelMax; Level >= LevelMin; Level-- )
{
// the visible node name
fprintf( pFile, " Level%d", Level );
// the connector
if ( Level != LevelMin )
fprintf( pFile, " ->" );
else
fprintf( pFile, ";" );
}
fprintf( pFile, "\n" );
fprintf( pFile, "}" );
fprintf( pFile, "\n" );
fprintf( pFile, "\n" );
// generate title box on top
fprintf( pFile, "{\n" );
fprintf( pFile, " rank = same;\n" );
fprintf( pFile, " LevelTitle1;\n" );
fprintf( pFile, " title1 [shape=plaintext,\n" );
fprintf( pFile, " fontsize=20,\n" );
fprintf( pFile, " fontname = \"Times-Roman\",\n" );
fprintf( pFile, " label=\"" );
fprintf( pFile, "%s", "Network structure visualized by ABC" );
fprintf( pFile, "\\n" );
fprintf( pFile, "Benchmark \\\"%s\\\". ", pNtk->pName );
fprintf( pFile, "Time was %s. ", Extra_TimeStamp() );
fprintf( pFile, "\"\n" );
fprintf( pFile, " ];\n" );
fprintf( pFile, "}" );
fprintf( pFile, "\n" );
fprintf( pFile, "\n" );
// generate statistics box
fprintf( pFile, "{\n" );
fprintf( pFile, " rank = same;\n" );
fprintf( pFile, " LevelTitle2;\n" );
fprintf( pFile, " title2 [shape=plaintext,\n" );
fprintf( pFile, " fontsize=18,\n" );
fprintf( pFile, " fontname = \"Times-Roman\",\n" );
fprintf( pFile, " label=\"" );
if ( Abc_NtkObjNum(pNtk) == Vec_PtrSize(vNodes) )
fprintf( pFile, "The network contains %d logic nodes and %d latches.", Abc_NtkNodeNum(pNtk), Abc_NtkLatchNum(pNtk) );
else
fprintf( pFile, "The set contains %d logic nodes and spans %d levels.", Abc_NtkCountLogicNodes(vNodes), LevelMax - LevelMin + 1 );
fprintf( pFile, "\\n" );
fprintf( pFile, "\"\n" );
fprintf( pFile, " ];\n" );
fprintf( pFile, "}" );
fprintf( pFile, "\n" );
fprintf( pFile, "\n" );
// generate the POs
if ( fHasCos )
{
fprintf( pFile, "{\n" );
fprintf( pFile, " rank = same;\n" );
// the labeling node of this level
fprintf( pFile, " Level%d;\n", LevelMax );
// generate the PO nodes
Vec_PtrForEachEntry( vNodes, pNode, i )
{
if ( !Abc_ObjIsCo(pNode) )
continue;
fprintf( pFile, " Node%d [label = \"%s%s\"",
pNode->Id,
(Abc_ObjIsBi(pNode)? Abc_ObjName(Abc_ObjFanout0(pNode)):Abc_ObjName(pNode)),
(Abc_ObjIsBi(pNode)? "_in":"") );
fprintf( pFile, ", shape = %s", (Abc_ObjIsBi(pNode)? "box":"invtriangle") );
if ( pNode->fMarkB )
fprintf( pFile, ", style = filled" );
fprintf( pFile, ", color = coral, fillcolor = coral" );
fprintf( pFile, "];\n" );
}
fprintf( pFile, "}" );
fprintf( pFile, "\n" );
fprintf( pFile, "\n" );
}
// generate nodes of each rank
for ( Level = LevelMax - fHasCos; Level >= LevelMin && Level > 0; Level-- )
{
fprintf( pFile, "{\n" );
fprintf( pFile, " rank = same;\n" );
// the labeling node of this level
fprintf( pFile, " Level%d;\n", Level );
Vec_PtrForEachEntry( vNodes, pNode, i )
{
if ( (int)pNode->Level != Level )
continue;
if ( Abc_ObjFaninNum(pNode) == 0 )
continue;
// fprintf( pFile, " Node%d [label = \"%d\"", pNode->Id, pNode->Id );
if ( Abc_NtkIsStrash(pNtk) )
pSopString = "";
else if ( Abc_NtkHasMapping(pNtk) && fGateNames )
pSopString = Mio_GateReadName(pNode->pData);
else if ( Abc_NtkHasMapping(pNtk) )
pSopString = Abc_NtkPrintSop(Mio_GateReadSop(pNode->pData));
else
pSopString = Abc_NtkPrintSop(pNode->pData);
fprintf( pFile, " Node%d [label = \"%d\\n%s\"", pNode->Id, pNode->Id, pSopString );
fprintf( pFile, ", shape = ellipse" );
if ( pNode->fMarkB )
fprintf( pFile, ", style = filled" );
fprintf( pFile, "];\n" );
}
fprintf( pFile, "}" );
fprintf( pFile, "\n" );
fprintf( pFile, "\n" );
}
// generate the PI nodes if any
if ( LevelMin == 0 )
{
fprintf( pFile, "{\n" );
fprintf( pFile, " rank = same;\n" );
// the labeling node of this level
fprintf( pFile, " Level%d;\n", LevelMin );
// generate the PO nodes
Vec_PtrForEachEntry( vNodes, pNode, i )
{
if ( !Abc_ObjIsCi(pNode) )
{
// check if the costant node is present
if ( Abc_ObjFaninNum(pNode) == 0 && Abc_ObjFanoutNum(pNode) > 0 )
{
fprintf( pFile, " Node%d [label = \"Const%d\"", pNode->Id, Abc_NtkIsStrash(pNode->pNtk) || Abc_NodeIsConst1(pNode) );
fprintf( pFile, ", shape = ellipse" );
if ( pNode->fMarkB )
fprintf( pFile, ", style = filled" );
fprintf( pFile, ", color = coral, fillcolor = coral" );
fprintf( pFile, "];\n" );
}
continue;
}
fprintf( pFile, " Node%d [label = \"%s\"",
pNode->Id,
(Abc_ObjIsBo(pNode)? Abc_ObjName(Abc_ObjFanin0(pNode)):Abc_ObjName(pNode)) );
fprintf( pFile, ", shape = %s", (Abc_ObjIsBo(pNode)? "box":"triangle") );
if ( pNode->fMarkB )
fprintf( pFile, ", style = filled" );
fprintf( pFile, ", color = coral, fillcolor = coral" );
fprintf( pFile, "];\n" );
}
fprintf( pFile, "}" );
fprintf( pFile, "\n" );
fprintf( pFile, "\n" );
}
/**Function*************************************************************
Synopsis [Print the vital stats of the network.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Abc_NtkPrintStats( FILE * pFile, Abc_Ntk_t * pNtk, int fFactored )
{
int Num;
// if ( Abc_NtkIsStrash(pNtk) )
// Abc_AigCountNext( pNtk->pManFunc );
fprintf( pFile, "%-13s:", pNtk->pName );
if ( Abc_NtkAssertNum(pNtk) )
fprintf( pFile, " i/o/a = %4d/%4d/%4d", Abc_NtkPiNum(pNtk), Abc_NtkPoNum(pNtk), Abc_NtkAssertNum(pNtk) );
else
fprintf( pFile, " i/o = %4d/%4d", Abc_NtkPiNum(pNtk), Abc_NtkPoNum(pNtk) );
fprintf( pFile, " lat = %4d", Abc_NtkLatchNum(pNtk) );
if ( Abc_NtkIsNetlist(pNtk) )
{
fprintf( pFile, " net = %5d", Abc_NtkNetNum(pNtk) );
fprintf( pFile, " nd = %5d", Abc_NtkNodeNum(pNtk) );
fprintf( pFile, " wbox = %3d", Abc_NtkWhiteboxNum(pNtk) );
fprintf( pFile, " bbox = %3d", Abc_NtkBlackboxNum(pNtk) );
}
else if ( Abc_NtkIsStrash(pNtk) )
{
fprintf( pFile, " and = %5d", Abc_NtkNodeNum(pNtk) );
if ( Num = Abc_NtkGetChoiceNum(pNtk) )
fprintf( pFile, " (choice = %d)", Num );
if ( Num = Abc_NtkGetExorNum(pNtk) )
fprintf( pFile, " (exor = %d)", Num );
// if ( Num2 = Abc_NtkGetMuxNum(pNtk) )
// fprintf( pFile, " (mux = %d)", Num2-Num );
// if ( Num2 )
// fprintf( pFile, " (other = %d)", Abc_NtkNodeNum(pNtk)-3*Num2 );
}
else
{
fprintf( pFile, " nd = %5d", Abc_NtkNodeNum(pNtk) );
fprintf( pFile, " net = %5d", Abc_NtkGetTotalFanins(pNtk) );
}
if ( Abc_NtkIsStrash(pNtk) || Abc_NtkIsNetlist(pNtk) )
{
}
else if ( Abc_NtkHasSop(pNtk) )
{
fprintf( pFile, " cube = %5d", Abc_NtkGetCubeNum(pNtk) );
// fprintf( pFile, " lit(sop) = %5d", Abc_NtkGetLitNum(pNtk) );
if ( fFactored )
fprintf( pFile, " lit(fac) = %5d", Abc_NtkGetLitFactNum(pNtk) );
}
else if ( Abc_NtkHasAig(pNtk) )
fprintf( pFile, " aig = %5d", Abc_NtkGetAigNodeNum(pNtk) );
else if ( Abc_NtkHasBdd(pNtk) )
fprintf( pFile, " bdd = %5d", Abc_NtkGetBddNodeNum(pNtk) );
else if ( Abc_NtkHasMapping(pNtk) )
{
fprintf( pFile, " area = %5.2f", Abc_NtkGetMappedArea(pNtk) );
fprintf( pFile, " delay = %5.2f", Abc_NtkDelayTrace(pNtk) );
}
else if ( !Abc_NtkHasBlackbox(pNtk) )
{
assert( 0 );
}
if ( Abc_NtkIsStrash(pNtk) )
fprintf( pFile, " lev = %3d", Abc_AigLevel(pNtk) );
else
fprintf( pFile, " lev = %3d", Abc_NtkLevel(pNtk) );
fprintf( pFile, "\n" );
// Abc_NtkCrossCut( pNtk );
// print the statistic into a file
/*
{
FILE * pTable;
pTable = fopen( "iscas/seqmap__stats.txt", "a+" );
fprintf( pTable, "%s ", pNtk->pName );
fprintf( pTable, "%d ", Abc_NtkPiNum(pNtk) );
fprintf( pTable, "%d ", Abc_NtkPoNum(pNtk) );
fprintf( pTable, "%d ", Abc_NtkLatchNum(pNtk) );
fprintf( pTable, "%d ", Abc_NtkNodeNum(pNtk) );
fprintf( pTable, "%d ", Abc_NtkLevel(pNtk) );
fprintf( pTable, "\n" );
fclose( pTable );
}
*/
/*
// print the statistic into a file
{
FILE * pTable;
pTable = fopen( "stats.txt", "a+" );
fprintf( pTable, "%s ", pNtk->pSpec );
fprintf( pTable, "%.0f ", Abc_NtkGetMappedArea(pNtk) );
fprintf( pTable, "%.2f ", Abc_NtkDelayTrace(pNtk) );
fprintf( pTable, "\n" );
fclose( pTable );
}
*/
/*
// print the statistic into a file
{
FILE * pTable;
pTable = fopen( "x/stats_new.txt", "a+" );
fprintf( pTable, "%s ", pNtk->pName );
// fprintf( pTable, "%d ", Abc_NtkPiNum(pNtk) );
// fprintf( pTable, "%d ", Abc_NtkPoNum(pNtk) );
// fprintf( pTable, "%d ", Abc_NtkLevel(pNtk) );
// fprintf( pTable, "%d ", Abc_NtkNodeNum(pNtk) );
// fprintf( pTable, "%d ", Abc_NtkGetTotalFanins(pNtk) );
// fprintf( pTable, "%d ", Abc_NtkLatchNum(pNtk) );
// fprintf( pTable, "%.2f ", (float)(s_MappingMem)/(float)(1<<20) );
fprintf( pTable, "%.2f", (float)(s_MappingTime)/(float)(CLOCKS_PER_SEC) );
// fprintf( pTable, "%.2f", (float)(s_ResynTime)/(float)(CLOCKS_PER_SEC) );
fprintf( pTable, "\n" );
fclose( pTable );
s_ResynTime = 0;
}
*/
/*
// print the statistic into a file
{
static int Counter = 0;
extern int timeRetime;
FILE * pTable;
Counter++;
pTable = fopen( "a/ret__stats.txt", "a+" );
fprintf( pTable, "%s ", pNtk->pName );
fprintf( pTable, "%d ", Abc_NtkNodeNum(pNtk) );
fprintf( pTable, "%d ", Abc_NtkLatchNum(pNtk) );
fprintf( pTable, "%d ", Abc_NtkLevel(pNtk) );
fprintf( pTable, "%.2f ", (float)(timeRetime)/(float)(CLOCKS_PER_SEC) );
if ( Counter % 4 == 0 )
fprintf( pTable, "\n" );
fclose( pTable );
}
*/
/*
// print the statistic into a file
{
static int Counter = 0;
extern int timeRetime;
FILE * pTable;
Counter++;
pTable = fopen( "d/stats.txt", "a+" );
fprintf( pTable, "%s ", pNtk->pName );
// fprintf( pTable, "%d ", Abc_NtkPiNum(pNtk) );
// fprintf( pTable, "%d ", Abc_NtkPoNum(pNtk) );
// fprintf( pTable, "%d ", Abc_NtkLatchNum(pNtk) );
fprintf( pTable, "%d ", Abc_NtkNodeNum(pNtk) );
fprintf( pTable, "%.2f ", (float)(timeRetime)/(float)(CLOCKS_PER_SEC) );
fprintf( pTable, "\n" );
fclose( pTable );
}
*/
/*
s_TotalNodes += Abc_NtkNodeNum(pNtk);
printf( "Total nodes = %6d %6.2f Mb Changes = %6d.\n",
s_TotalNodes, s_TotalNodes * 20.0 / (1<<20), s_TotalChanges );
*/
}
