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Commit 7b2ef943 by Alan Mishchenko
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Expriments with functions.

parent 2c73723b
Showing with 98 additions and 35 deletions
src/base/abci/abc.c
......@@ -13239,6 +13239,7 @@ int Abc_CommandTest( Abc_Frame_t * pAbc, int argc, char ** argv )
// Cba_PrsReadBlifTest();
}
// Abc_NtkComputePaths( Abc_FrameReadNtk(pAbc) );
Dau_NetworkEnumTest();
return 0;
usage:
Abc_Print( -2, "usage: test [-CKDNM] [-aovwh] <file_name>\n" );
src/opt/dau/dauNpn.c
......@@ -28,7 +28,7 @@ ABC_NAMESPACE_IMPL_START
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
//#define USE4VARS 1
#define USE4VARS 1
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
......@@ -149,26 +149,30 @@ unsigned * Dau_ReadFile( char * pFileName, int nSizeW )
Abc_PrintTime( 1, "File reading", Abc_Clock() - clk );
return p;
}
void Dau_AddFunction( word tCur, int nVars, unsigned * pTable, Vec_Int_t * vNpns )
int Dau_AddFunction( word tCur, int nVars, unsigned * pTable, Vec_Int_t * vNpns, Vec_Int_t * vNpns_ )
{
int Digit = (1 << nVars)-1;
word tMask = Abc_Tt6Mask( 1 << nVars );
word tNorm = (tCur >> Digit) & 1 ? ~tCur : tCur;
unsigned t = (unsigned)(tNorm & tMask);
unsigned tRep = pTable[t];
unsigned tRep2 = pTable[tRep & 0x7FFFFFFF];
unsigned tRep = pTable[t] & 0x7FFFFFFF;
unsigned tRep2 = pTable[tRep];
assert( ((tNorm >> Digit) & 1) == 0 );
if ( (tRep2 >> 31) == 0 ) // first time
{
Vec_IntPush( vNpns, tRep2 );
pTable[tRep & 0x7FFFFFFF] = tRep2 | (1 << 31);
if ( Abc_TtSupportSize(&tCur, nVars) < nVars )
Vec_IntPush( vNpns_, tRep2 );
pTable[tRep] = tRep2 | (1 << 31);
return tRep2;
}
return 0;
}
void Dau_NetworkEnum()
{
abctime clk = Abc_Clock();
int Limit = 2;
int UseTwo = 1;
#ifdef USE4VARS
int nVars = 4;
int nSizeW = 1 << 14;
......@@ -179,16 +183,31 @@ void Dau_NetworkEnum()
char * pFileName = "tableW30.data";
#endif
unsigned * pTable = Dau_ReadFile( pFileName, nSizeW );
Vec_Int_t * vNpns = Vec_IntAlloc( 1000 );
int i, v, g, k, m, Entry, Count = 1, iPrev = 0, iLast = 1;
Vec_Wec_t * vNpns = Vec_WecStart( 32 );
Vec_Wec_t * vNpns_ = Vec_WecStart( 32 );
int i, v, u, g, k, m, n, Res, Entry, iPrev = 0, iLast = 1;
unsigned Inv = (unsigned)Abc_Tt6Mask(1 << (nVars-1));
// create constant function and buffer/inverter function
pTable[0] |= (1 << 31);
pTable[Inv] |= (1 << 31);
Vec_IntPushTwo( vNpns, 0, Inv );
Vec_IntForEachEntryStart( vNpns, Entry, i, 1 )
Vec_IntPushTwo( Vec_WecEntry(vNpns, 0), 0, Inv );
Vec_IntPushTwo( Vec_WecEntry(vNpns_, 0), 0, Inv );
printf("Nodes = %2d. New = %4d. Total = %6d. New = %4d. Total = %6d. ",
0, Vec_IntSize(Vec_WecEntry(vNpns, 0)), Vec_WecSizeSize(vNpns),
Vec_IntSize(Vec_WecEntry(vNpns_, 0)), Vec_WecSizeSize(vNpns_) );
Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
// numerate other functions based on how many nodes they have
for ( n = 1; n < 32; n++ )
{
Vec_Int_t * vFuncsN2 = n > 1 ? Vec_WecEntry( vNpns, n-2 ) : NULL;
Vec_Int_t * vFuncsN1 = Vec_WecEntry( vNpns, n-1 );
Vec_Int_t * vFuncsN = Vec_WecEntry( vNpns, n );
Vec_Int_t * vFuncsN_ = Vec_WecEntry( vNpns_,n );
Vec_IntForEachEntry( vFuncsN1, Entry, i )
{
word uTruth = (((word)Entry) << 32) | (word)Entry;
int nSupp = Abc_TtSupportSize( &uTruth, nVars );
assert( nSupp == 6 || !Abc_Tt6HasVar(uTruth, nVars-1-nSupp) );
//printf( "Exploring function %4d with %d vars: ", i, nSupp );
//printf( " %04x\n", (int)uTruth );
//Dau_DsdPrintFromTruth( &uTruth, 4 );
......@@ -205,16 +224,16 @@ void Dau_NetworkEnum()
{
tGate = s_Truths6[nVars-1-v] & s_Truths6[nVars-1-nSupp];
tCur = (tGate & Cof1) | (~tGate & Cof0);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
tCur = (tGate & Cof0) | (~tGate & Cof1);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
}
else
{
tGate = s_Truths6[nVars-1-v] ^ s_Truths6[nVars-1-nSupp];
tCur = (tGate & Cof1) | (~tGate & Cof0);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
}
}
}
......@@ -227,23 +246,23 @@ void Dau_NetworkEnum()
{
tGate = s_Truths6[nVars-1-v] & s_Truths6[nVars-1-k];
tCur = (tGate & Cof1) | (~tGate & Cof0);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
tCur = (tGate & Cof0) | (~tGate & Cof1);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
tGate = s_Truths6[nVars-1-v] & ~s_Truths6[nVars-1-k];
tCur = (tGate & Cof1) | (~tGate & Cof0);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
tCur = (tGate & Cof0) | (~tGate & Cof1);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
}
else
{
tGate = s_Truths6[nVars-1-v] ^ s_Truths6[nVars-1-k];
tCur = (tGate & Cof1) | (~tGate & Cof0);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
}
}
}
......@@ -257,54 +276,97 @@ void Dau_NetworkEnum()
{
tGate = s_Truths6[nVars-1-m] & s_Truths6[nVars-1-k];
tCur = (tGate & Cof1) | (~tGate & Cof0);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
tCur = (tGate & Cof0) | (~tGate & Cof1);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
tGate = s_Truths6[nVars-1-m] & ~s_Truths6[nVars-1-k];
tCur = (tGate & Cof1) | (~tGate & Cof0);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
tCur = (tGate & Cof0) | (~tGate & Cof1);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
tGate = ~s_Truths6[nVars-1-m] & s_Truths6[nVars-1-k];
tCur = (tGate & Cof1) | (~tGate & Cof0);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
tCur = (tGate & Cof0) | (~tGate & Cof1);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
tGate = ~s_Truths6[nVars-1-m] & ~s_Truths6[nVars-1-k];
tCur = (tGate & Cof1) | (~tGate & Cof0);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
tCur = (tGate & Cof0) | (~tGate & Cof1);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
}
else
{
tGate = s_Truths6[nVars-1-m] ^ s_Truths6[nVars-1-k];
tCur = (tGate & Cof1) | (~tGate & Cof0);
Dau_AddFunction( tCur, nVars, pTable, vNpns );
Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
}
}
}
}
if ( i == iLast )
}
if ( UseTwo && vFuncsN2 )
Vec_IntForEachEntry( vFuncsN2, Entry, i )
{
//printf("Finished %d nodes with %d functions.\n", Count++, Vec_IntSize(vNpns) );
iPrev = iLast;
iLast = Vec_IntSize(vNpns)-1;
printf("Finished %2d nodes with %6d functions out of %6d. ", Count++, iLast - iPrev, Vec_IntSize(vNpns) );
word uTruth = (((word)Entry) << 32) | (word)Entry;
int nSupp = Abc_TtSupportSize( &uTruth, nVars );
assert( nSupp == 6 || !Abc_Tt6HasVar(uTruth, nVars-1-nSupp) );
//printf( "Exploring function %4d with %d vars: ", i, nSupp );
//printf( " %04x\n", (int)uTruth );
//Dau_DsdPrintFromTruth( &uTruth, 4 );
for ( v = 0; v < nSupp; v++ )
// for ( u = v+1; u < nSupp; u++ ) if ( u != v )
for ( u = 0; u < nSupp; u++ ) if ( u != v )
{
word tGate1, tGate2, tCur;
word Cof0 = Abc_Tt6Cofactor0( uTruth, nVars-1-v );
word Cof1 = Abc_Tt6Cofactor1( uTruth, nVars-1-v );
word Cof00 = Abc_Tt6Cofactor0( Cof0, nVars-1-u );
word Cof01 = Abc_Tt6Cofactor1( Cof0, nVars-1-u );
word Cof10 = Abc_Tt6Cofactor0( Cof1, nVars-1-u );
word Cof11 = Abc_Tt6Cofactor1( Cof1, nVars-1-u );
tGate1 = s_Truths6[nVars-1-v] & s_Truths6[nVars-1-u];
tGate2 = s_Truths6[nVars-1-v] ^ s_Truths6[nVars-1-u];
Cof0 = (tGate2 & Cof00) | (~tGate2 & Cof01);
Cof1 = (tGate2 & Cof10) | (~tGate2 & Cof11);
tCur = (tGate1 & Cof1) | (~tGate1 & Cof0);
Res = Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
if ( Res )
printf( "Found function %d\n", Res );
tCur = (tGate1 & Cof0) | (~tGate1 & Cof1);
Res = Dau_AddFunction( tCur, nVars, pTable, vFuncsN, vFuncsN_ );
if ( Res )
printf( "Found function %d\n", Res );
}
}
printf("Nodes = %2d. New = %4d. Total = %6d. New = %4d. Total = %6d. ",
n, Vec_IntSize(vFuncsN), Vec_WecSizeSize(vNpns), Vec_IntSize(vFuncsN_), Vec_WecSizeSize(vNpns_) );
Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
fflush(stdout);
if ( Vec_IntSize(vFuncsN) == 0 )
break;
}
}
Vec_IntFree( vNpns );
printf( "Functions with 7 nodes:\n" );
Vec_IntForEachEntry( Vec_WecEntry(vNpns_,7), Entry, i )
printf( "%04x ", Entry );
printf( "\n" );
Vec_WecFree( vNpns );
Vec_WecFree( vNpns_ );
ABC_FREE( pTable );
Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
Abc_PrintTime( 1, "Total time", Abc_Clock() - clk );
fflush(stdout);
}
void Dau_NetworkEnumTest()
......
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