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Adding limit on the number of live BDD nodes in command 'muxes -g'.

This commit is contained in:
Alan Mishchenko 2020-03-12 00:33:45 +02:00
parent dc3a544b1f
commit da5a7a235f
4 changed files with 33 additions and 18 deletions
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2
src/base/abc/abc.h
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@ -761,7 +761,7 @@ extern ABC_DLL Abc_Ntk_t * Abc_NtkToNetlist( Abc_Ntk_t * pNtk );
extern ABC_DLL Abc_Ntk_t * Abc_NtkToNetlistBench( Abc_Ntk_t * pNtk );
/*=== abcNtbdd.c ==========================================================*/
extern ABC_DLL Abc_Ntk_t * Abc_NtkDeriveFromBdd( void * dd, void * bFunc, char * pNamePo, Vec_Ptr_t * vNamesPi );
extern ABC_DLL Abc_Ntk_t * Abc_NtkBddToMuxes( Abc_Ntk_t * pNtk, int fGlobal );
extern ABC_DLL Abc_Ntk_t * Abc_NtkBddToMuxes( Abc_Ntk_t * pNtk, int fGlobal, int Limit );
extern ABC_DLL void * Abc_NtkBuildGlobalBdds( Abc_Ntk_t * pNtk, int fBddSizeMax, int fDropInternal, int fReorder, int fReverse, int fVerbose );
extern ABC_DLL void * Abc_NtkFreeGlobalBdds( Abc_Ntk_t * pNtk, int fFreeMan );
extern ABC_DLL int Abc_NtkSizeOfGlobalBdds( Abc_Ntk_t * pNtk );

29
src/base/abci/abc.c
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@ -10985,15 +10985,25 @@ usage:
int Abc_CommandMuxes( Abc_Frame_t * pAbc, int argc, char ** argv )
{
Abc_Ntk_t * pNtk, * pNtkRes;
int c, fGlobal = 0;
int c, fGlobal = 0, Limit = 1000000;
pNtk = Abc_FrameReadNtk(pAbc);
// set defaults
Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "gh" ) ) != EOF )
while ( ( c = Extra_UtilGetopt( argc, argv, "Bgh" ) ) != EOF )
{
switch ( c )
{
case 'B':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-B\" should be followed by an integer.\n" );
goto usage;
}
Limit = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( Limit < 0 )
goto usage;
break;
case 'g':
fGlobal ^= 1;
break;
@ -11028,7 +11038,7 @@ int Abc_CommandMuxes( Abc_Frame_t * pAbc, int argc, char ** argv )
}
// get the new network
pNtkRes = Abc_NtkBddToMuxes( pNtk, fGlobal );
pNtkRes = Abc_NtkBddToMuxes( pNtk, fGlobal, Limit );
if ( pNtkRes == NULL )
{
Abc_Print( -1, "Converting to MUXes has failed.\n" );
@ -11039,11 +11049,12 @@ int Abc_CommandMuxes( Abc_Frame_t * pAbc, int argc, char ** argv )
return 0;
usage:
Abc_Print( -2, "usage: muxes [-gh]\n" );
Abc_Print( -2, "\t converts the current network into a network derived by\n" );
Abc_Print( -2, "\t replacing all nodes by DAGs isomorphic to the local BDDs\n" );
Abc_Print( -2, "\t-g : toggle visualizing the global BDDs of primary outputs [default = %s].\n", fGlobal? "yes": "no" );
Abc_Print( -2, "\t-h : print the command usage\n");
Abc_Print( -2, "usage: muxes [-B num] [-gh]\n" );
Abc_Print( -2, "\t converts the current network into a network derived by\n" );
Abc_Print( -2, "\t replacing all nodes by DAGs isomorphic to the local BDDs\n" );
Abc_Print( -2, "\t-B <num>: limit on live BDD nodes during collapsing [default = %d]\n", Limit );
Abc_Print( -2, "\t-g : toggle visualizing the global BDDs of primary outputs [default = %s].\n", fGlobal? "yes": "no" );
Abc_Print( -2, "\t-h : print the command usage\n");
return 1;
}

18
src/base/abci/abcNtbdd.c
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@ -34,7 +34,7 @@ ABC_NAMESPACE_IMPL_START
#ifdef ABC_USE_CUDD
static void Abc_NtkBddToMuxesPerformGlo( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkNew );
static int Abc_NtkBddToMuxesPerformGlo( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkNew, int Limit );
static void Abc_NtkBddToMuxesPerform( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkNew );
static Abc_Obj_t * Abc_NodeBddToMuxes( Abc_Obj_t * pNodeOld, Abc_Ntk_t * pNtkNew );
static Abc_Obj_t * Abc_NodeBddToMuxes_rec( DdManager * dd, DdNode * bFunc, Abc_Ntk_t * pNtkNew, st__table * tBdd2Node );
@ -129,12 +129,15 @@ Abc_Ntk_t * Abc_NtkDeriveFromBdd( void * dd0, void * bFunc, char * pNamePo, Vec_
SeeAlso []
***********************************************************************/
Abc_Ntk_t * Abc_NtkBddToMuxes( Abc_Ntk_t * pNtk, int fGlobal )
Abc_Ntk_t * Abc_NtkBddToMuxes( Abc_Ntk_t * pNtk, int fGlobal, int Limit )
{
Abc_Ntk_t * pNtkNew;
pNtkNew = Abc_NtkStartFrom( pNtk, ABC_NTK_LOGIC, ABC_FUNC_SOP );
if ( fGlobal )
Abc_NtkBddToMuxesPerformGlo( pNtk, pNtkNew );
{
if ( !Abc_NtkBddToMuxesPerformGlo( pNtk, pNtkNew, Limit ) )
return NULL;
}
else
{
Abc_NtkBddToMuxesPerform( pNtk, pNtkNew );
@ -259,17 +262,17 @@ Abc_Obj_t * Abc_NodeBddToMuxes_rec( DdManager * dd, DdNode * bFunc, Abc_Ntk_t *
SeeAlso []
***********************************************************************/
void Abc_NtkBddToMuxesPerformGlo( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkNew )
int Abc_NtkBddToMuxesPerformGlo( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkNew, int Limit )
{
DdManager * dd;
Abc_Obj_t * pObj, * pObjNew; int i;
st__table * tBdd2Node;
assert( Abc_NtkIsStrash(pNtk) );
dd = (DdManager *)Abc_NtkBuildGlobalBdds( pNtk, 10000000, 1, 1, 0, 0 );
dd = (DdManager *)Abc_NtkBuildGlobalBdds( pNtk, Limit, 1, 1, 0, 0 );
if ( dd == NULL )
{
printf( "Construction of global BDDs has failed.\n" );
return;
return 0;
}
//printf( "Shared BDD size = %6d nodes.\n", Cudd_ReadKeys(dd) - Cudd_ReadDead(dd) );
@ -292,6 +295,7 @@ void Abc_NtkBddToMuxesPerformGlo( Abc_Ntk_t * pNtk, Abc_Ntk_t * pNtkNew )
Abc_NtkFreeGlobalBdds( pNtk, 0 );
Extra_StopManager( dd );
Abc_NtkCleanCopy( pNtk );
return 1;
}
/**Function*************************************************************
@ -655,7 +659,7 @@ ABC_PRT( "Time", Abc_Clock() - clk );
#else
double Abc_NtkSpacePercentage( Abc_Obj_t * pNode ) { return 0.0; }
Abc_Ntk_t * Abc_NtkBddToMuxes( Abc_Ntk_t * pNtk, int fGlobal ) { return NULL; }
Abc_Ntk_t * Abc_NtkBddToMuxes( Abc_Ntk_t * pNtk, int fGlobal, int Limit ) { return NULL; }
#endif

2
src/bdd/llb/llb4Nonlin.c
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@ -1156,7 +1156,7 @@ Aig_Man_t * Llb_ReachableStates( Aig_Man_t * pAig )
Cudd_Quit( dd );
// convert
pNtkMuxes = Abc_NtkBddToMuxes( pNtk, 0 );
pNtkMuxes = Abc_NtkBddToMuxes( pNtk, 0, 1000000 );
Abc_NtkDelete( pNtk );
pNtk = Abc_NtkStrash( pNtkMuxes, 0, 1, 0 );
Abc_NtkDelete( pNtkMuxes );