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Diffstat (limited to 'src/base/abci/abcAuto.c')
| -rw-r--r-- | src/base/abci/abcAuto.c | 239 |
1 files changed, 239 insertions, 0 deletions
diff --git a/src/base/abci/abcAuto.c b/src/base/abci/abcAuto.c new file mode 100644 index 00000000..40212c17 --- /dev/null +++ b/src/base/abci/abcAuto.c @@ -0,0 +1,239 @@ +/**CFile**************************************************************** + + FileName [abcAuto.c] + + SystemName [ABC: Logic synthesis and verification system.] + + PackageName [Network and node package.] + + Synopsis [Computation of autosymmetries.] + + Author [Alan Mishchenko] + + Affiliation [UC Berkeley] + + Date [Ver. 1.0. Started - June 20, 2005.] + + Revision [$Id: abcAuto.c,v 1.00 2005/06/20 00:00:00 alanmi Exp $] + +***********************************************************************/ + +#include "abc.h" + +//////////////////////////////////////////////////////////////////////// +/// DECLARATIONS /// +//////////////////////////////////////////////////////////////////////// + +static void Abc_NtkAutoPrintAll( DdManager * dd, int nInputs, DdNode * pbOutputs[], int nOutputs, char * pInputNames[], char * pOutputNames[], int fNaive ); +static void Abc_NtkAutoPrintOne( DdManager * dd, int nInputs, DdNode * pbOutputs[], int Output, char * pInputNames[], char * pOutputNames[], int fNaive ); + +//////////////////////////////////////////////////////////////////////// +/// FUNCTION DEFINITIONS /// +//////////////////////////////////////////////////////////////////////// + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Abc_NtkAutoPrint( Abc_Ntk_t * pNtk, int Output, int fNaive, int fVerbose ) +{ + DdManager * dd; // the BDD manager used to hold shared BDDs + DdNode ** pbGlobal; // temporary storage for global BDDs + char ** pInputNames; // pointers to the CI names + char ** pOutputNames; // pointers to the CO names + int nOutputs, nInputs, i; + Vec_Ptr_t * vFuncsGlob; + Abc_Obj_t * pObj; + + // compute the global BDDs + if ( Abc_NtkBuildGlobalBdds(pNtk, 10000000, 1, 1, fVerbose) == NULL ) + return; + + // get information about the network + nInputs = Abc_NtkCiNum(pNtk); + nOutputs = Abc_NtkCoNum(pNtk); +// dd = pNtk->pManGlob; + dd = Abc_NtkGlobalBddMan( pNtk ); + + // complement the global functions + vFuncsGlob = Vec_PtrAlloc( Abc_NtkCoNum(pNtk) ); + Abc_NtkForEachCo( pNtk, pObj, i ) + Vec_PtrPush( vFuncsGlob, Abc_ObjGlobalBdd(pObj) ); + pbGlobal = (DdNode **)Vec_PtrArray( vFuncsGlob ); + + // get the network names + pInputNames = Abc_NtkCollectCioNames( pNtk, 0 ); + pOutputNames = Abc_NtkCollectCioNames( pNtk, 1 ); + + // print the size of the BDDs + if ( fVerbose ) + printf( "Shared BDD size = %6d nodes.\n", Cudd_ReadKeys(dd) - Cudd_ReadDead(dd) ); + + // allocate additional variables + for ( i = 0; i < nInputs; i++ ) + Cudd_bddNewVar( dd ); + assert( Cudd_ReadSize(dd) == 2 * nInputs ); + + // create ZDD variables in the manager + Cudd_zddVarsFromBddVars( dd, 2 ); + + // perform the analysis of the primary output functions for auto-symmetry + if ( Output == -1 ) + Abc_NtkAutoPrintAll( dd, nInputs, pbGlobal, nOutputs, pInputNames, pOutputNames, fNaive ); + else + Abc_NtkAutoPrintOne( dd, nInputs, pbGlobal, Output, pInputNames, pOutputNames, fNaive ); + + // deref the PO functions +// Abc_NtkFreeGlobalBdds( pNtk ); + // stop the global BDD manager +// Extra_StopManager( pNtk->pManGlob ); +// pNtk->pManGlob = NULL; + Abc_NtkFreeGlobalBdds( pNtk, 1 ); + free( pInputNames ); + free( pOutputNames ); + Vec_PtrFree( vFuncsGlob ); +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Abc_NtkAutoPrintAll( DdManager * dd, int nInputs, DdNode * pbOutputs[], int nOutputs, char * pInputNames[], char * pOutputNames[], int fNaive ) +{ + DdNode * bSpace1, * bSpace2, * bCanVars, * bReduced, * zEquations; + double nMints; + int nSupp, SigCounter, o; + + int nAutos; + int nAutoSyms; + int nAutoSymsMax; + int nAutoSymsMaxSupp; + int nAutoSymOuts; + int nSuppSizeMax; + int clk; + + nAutoSymOuts = 0; + nAutoSyms = 0; + nAutoSymsMax = 0; + nAutoSymsMaxSupp = 0; + nSuppSizeMax = 0; + clk = clock(); + + SigCounter = 0; + for ( o = 0; o < nOutputs; o++ ) + { +// bSpace1 = Extra_bddSpaceFromFunctionFast( dd, pbOutputs[o] ); Cudd_Ref( bSpace1 ); + bSpace1 = Extra_bddSpaceFromFunction( dd, pbOutputs[o], pbOutputs[o] ); Cudd_Ref( bSpace1 ); + bCanVars = Extra_bddSpaceCanonVars( dd, bSpace1 ); Cudd_Ref( bCanVars ); + bReduced = Extra_bddSpaceReduce( dd, pbOutputs[o], bCanVars ); Cudd_Ref( bReduced ); + zEquations = Extra_bddSpaceEquations( dd, bSpace1 ); Cudd_Ref( zEquations ); + + nSupp = Cudd_SupportSize( dd, bSpace1 ); + nMints = Cudd_CountMinterm( dd, bSpace1, nSupp ); + nAutos = Extra_Base2LogDouble(nMints); + printf( "Output #%3d: Inputs = %2d. AutoK = %2d.\n", o, nSupp, nAutos ); + + if ( nAutos > 0 ) + { + nAutoSymOuts++; + nAutoSyms += nAutos; + if ( nAutoSymsMax < nAutos ) + { + nAutoSymsMax = nAutos; + nAutoSymsMaxSupp = nSupp; + } + } + if ( nSuppSizeMax < nSupp ) + nSuppSizeMax = nSupp; + + +//PRB( dd, bCanVars ); +//PRB( dd, bReduced ); +//Cudd_PrintMinterm( dd, bReduced ); +//printf( "The equations are:\n" ); +//Cudd_zddPrintCover( dd, zEquations ); +//printf( "\n" ); +//fflush( stdout ); + + bSpace2 = Extra_bddSpaceFromMatrixPos( dd, zEquations ); Cudd_Ref( bSpace2 ); +//PRB( dd, bSpace1 ); +//PRB( dd, bSpace2 ); + if ( bSpace1 != bSpace2 ) + printf( "Spaces are NOT EQUAL!\n" ); +// else +// printf( "Spaces are equal.\n" ); + + Cudd_RecursiveDeref( dd, bSpace1 ); + Cudd_RecursiveDeref( dd, bSpace2 ); + Cudd_RecursiveDeref( dd, bCanVars ); + Cudd_RecursiveDeref( dd, bReduced ); + Cudd_RecursiveDerefZdd( dd, zEquations ); + } + + printf( "The cumulative statistics for all outputs:\n" ); + printf( "Ins=%3d ", nInputs ); + printf( "InMax=%3d ", nSuppSizeMax ); + printf( "Outs=%3d ", nOutputs ); + printf( "Auto=%3d ", nAutoSymOuts ); + printf( "SumK=%3d ", nAutoSyms ); + printf( "KMax=%2d ", nAutoSymsMax ); + printf( "Supp=%3d ", nAutoSymsMaxSupp ); + printf( "Time=%4.2f ", (float)(clock() - clk)/(float)(CLOCKS_PER_SEC) ); + printf( "\n" ); +} + +/**Function************************************************************* + + Synopsis [] + + Description [] + + SideEffects [] + + SeeAlso [] + +***********************************************************************/ +void Abc_NtkAutoPrintOne( DdManager * dd, int nInputs, DdNode * pbOutputs[], int Output, char * pInputNames[], char * pOutputNames[], int fNaive ) +{ + DdNode * bSpace1, * bCanVars, * bReduced, * zEquations; + double nMints; + int nSupp, SigCounter; + int nAutos; + + SigCounter = 0; + bSpace1 = Extra_bddSpaceFromFunctionFast( dd, pbOutputs[Output] ); Cudd_Ref( bSpace1 ); +// bSpace1 = Extra_bddSpaceFromFunction( dd, pbOutputs[Output], pbOutputs[Output] ); Cudd_Ref( bSpace1 ); + bCanVars = Extra_bddSpaceCanonVars( dd, bSpace1 ); Cudd_Ref( bCanVars ); + bReduced = Extra_bddSpaceReduce( dd, pbOutputs[Output], bCanVars ); Cudd_Ref( bReduced ); + zEquations = Extra_bddSpaceEquations( dd, bSpace1 ); Cudd_Ref( zEquations ); + + nSupp = Cudd_SupportSize( dd, bSpace1 ); + nMints = Cudd_CountMinterm( dd, bSpace1, nSupp ); + nAutos = Extra_Base2LogDouble(nMints); + printf( "Output #%3d: Inputs = %2d. AutoK = %2d.\n", Output, nSupp, nAutos ); + + Cudd_RecursiveDeref( dd, bSpace1 ); + Cudd_RecursiveDeref( dd, bCanVars ); + Cudd_RecursiveDeref( dd, bReduced ); + Cudd_RecursiveDerefZdd( dd, zEquations ); +} + +//////////////////////////////////////////////////////////////////////// +/// END OF FILE /// +//////////////////////////////////////////////////////////////////////// + + |