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Commit efdd26f8 by Alan Mishchenko
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Scalable SOP manipulation package.

parent 5f77e7ae
Showing with 1532 additions and 42 deletions
abclib.dsp
...@@ -867,6 +867,10 @@ SOURCE=.\src\base\pla\plaCom.c ...@@ -867,6 +867,10 @@ SOURCE=.\src\base\pla\plaCom.c
# End Source File # End Source File
# Begin Source File # Begin Source File
SOURCE=.\src\base\pla\plaFxch.c
# End Source File
# Begin Source File
SOURCE=.\src\base\pla\plaHash.c SOURCE=.\src\base\pla\plaHash.c
# End Source File # End Source File
# Begin Source File # Begin Source File
...@@ -883,6 +887,10 @@ SOURCE=.\src\base\pla\plaRead.c ...@@ -883,6 +887,10 @@ SOURCE=.\src\base\pla\plaRead.c
# End Source File # End Source File
# Begin Source File # Begin Source File
SOURCE=.\src\base\pla\plaSimple.c
# End Source File
# Begin Source File
SOURCE=.\src\base\pla\plaWrite.c SOURCE=.\src\base\pla\plaWrite.c
# End Source File # End Source File
# End Group # End Group
......
src/base/abci/abcFx.c
...@@ -1091,12 +1091,12 @@ void Fx_ManUpdate( Fx_Man_t * p, int iDiv, int * fWarning ) ...@@ -1091,12 +1091,12 @@ void Fx_ManUpdate( Fx_Man_t * p, int iDiv, int * fWarning )
if ( Vec_IntSize(vDiv) == 2 || fCompl ) if ( Vec_IntSize(vDiv) == 2 || fCompl )
{ {
Vec_IntPush( vCube, Abc_Var2Lit(iVarNew, 1) ); Vec_IntPush( vCube, Abc_Var2Lit(iVarNew, 1) );
Vec_IntPush( vLitN, Vec_WecLevelId(p->vCubes, vCube) ); Vec_IntPush( vLitN, Vec_WecLevelId(p->vCubes, vCube) ); // MAKE SURE vCube IS SORTED BY ID
} }
else else
{ {
Vec_IntPush( vCube, Abc_Var2Lit(iVarNew, 0) ); Vec_IntPush( vCube, Abc_Var2Lit(iVarNew, 0) );
Vec_IntPush( vLitP, Vec_WecLevelId(p->vCubes, vCube) ); Vec_IntPush( vLitP, Vec_WecLevelId(p->vCubes, vCube) ); // MAKE SURE vCube IS SORTED BY ID
} }
p->nLits -= Vec_IntSize(vDiv) + Vec_IntSize(vCube2) - 2; p->nLits -= Vec_IntSize(vDiv) + Vec_IntSize(vCube2) - 2;
// remove second cube // remove second cube
...@@ -1106,6 +1106,8 @@ void Fx_ManUpdate( Fx_Man_t * p, int iDiv, int * fWarning ) ...@@ -1106,6 +1106,8 @@ void Fx_ManUpdate( Fx_Man_t * p, int iDiv, int * fWarning )
assert( k == Vec_IntSize(p->vCubesD) / 2 ); assert( k == Vec_IntSize(p->vCubesD) / 2 );
Vec_IntShrink( p->vCubesD, k ); Vec_IntShrink( p->vCubesD, k );
Vec_IntSort( p->vCubesD, 0 ); Vec_IntSort( p->vCubesD, 0 );
//Vec_IntSort( vLitN, 0 );
//Vec_IntSort( vLitP, 0 );
// add cost of single-cube divisors // add cost of single-cube divisors
Fx_ManForEachCubeVec( p->vCubesS, p->vCubes, vCube, i ) Fx_ManForEachCubeVec( p->vCubesS, p->vCubes, vCube, i )
......
src/base/pla/module.make
SRC += src/base/pla/plaCom.c \ SRC += src/base/pla/plaCom.c \
src/base/pla/plaHash.c \ src/base/pla/plaHash.c \
src/base/pla/plaFxch.c \
src/base/pla/plaMan.c \ src/base/pla/plaMan.c \
src/base/pla/plaMerge.c \ src/base/pla/plaMerge.c \
src/base/pla/plaSimple.c \
src/base/pla/plaRead.c \ src/base/pla/plaRead.c \
src/base/pla/plaWrite.c src/base/pla/plaWrite.c
src/base/pla/pla.h
...@@ -74,20 +74,33 @@ struct Pla_Man_t_ ...@@ -74,20 +74,33 @@ struct Pla_Man_t_
Vec_Int_t vHashes; // hash values Vec_Int_t vHashes; // hash values
Vec_Wrd_t vInBits; // input bits Vec_Wrd_t vInBits; // input bits
Vec_Wrd_t vOutBits; // output bits Vec_Wrd_t vOutBits; // output bits
Vec_Wec_t vLits; // cubes as interger arrays Vec_Wec_t vCubeLits; // cubes as interger arrays
Vec_Wec_t vOccurs; // occurent counters for the literals Vec_Wec_t vOccurs; // occurence counters for the literals
Vec_Int_t vDivs; // divisor definitions
}; };
static inline char * Pla_ManName( Pla_Man_t * p ) { return p->pName; }
static inline int Pla_ManInNum( Pla_Man_t * p ) { return p->nIns; } static inline int Pla_ManInNum( Pla_Man_t * p ) { return p->nIns; }
static inline int Pla_ManOutNum( Pla_Man_t * p ) { return p->nOuts; } static inline int Pla_ManOutNum( Pla_Man_t * p ) { return p->nOuts; }
static inline int Pla_ManCubeNum( Pla_Man_t * p ) { return Vec_IntSize( &p->vCubes ); } static inline int Pla_ManCubeNum( Pla_Man_t * p ) { return Vec_IntSize( &p->vCubes ); }
static inline int Pla_ManDivNum( Pla_Man_t * p ) { return Vec_IntSize( &p->vDivs ); }
static inline word * Pla_CubeIn( Pla_Man_t * p, int i ) { return Vec_WrdEntryP(&p->vInBits, i * p->nInWords); } static inline word * Pla_CubeIn( Pla_Man_t * p, int i ) { return Vec_WrdEntryP(&p->vInBits, i * p->nInWords); }
static inline word * Pla_CubeOut( Pla_Man_t * p, int i ) { return Vec_WrdEntryP(&p->vOutBits, i * p->nOutWords); } static inline word * Pla_CubeOut( Pla_Man_t * p, int i ) { return Vec_WrdEntryP(&p->vOutBits, i * p->nOutWords); }
static inline int Pla_CubeGetLit( word * p, int k ) { return (int)(p[k>>5] >> ((k<<1) & 63)) & 3; } static inline int Pla_CubeNum( int hCube ) { return hCube >> 8; }
static inline void Pla_CubeSetLit( word * p, int k, Pla_Lit_t d ) { p[k>>5] |= (((word)d)<<((k<<1) & 63)); } static inline int Pla_CubeLit( int hCube ) { return hCube & 0xFF; }
static inline void Pla_CubeXorLit( word * p, int k, Pla_Lit_t d ) { p[k>>5] ^= (((word)d)<<((k<<1) & 63)); } static inline int Pla_CubeHandle( int iCube, int iLit ) { assert( !(iCube >> 24) && !(iLit >> 8) ); return iCube << 8 | iLit; }
// read/write/flip i-th bit of a bit string table
static inline int Pla_TtGetBit( word * p, int i ) { return (int)(p[i>>6] >> (i & 63)) & 1; }
static inline void Pla_TtSetBit( word * p, int i ) { p[i>>6] |= (((word)1)<<(i & 63)); }
static inline void Pla_TtXorBit( word * p, int i ) { p[i>>6] ^= (((word)1)<<(i & 63)); }
// read/write/flip i-th literal in a cube
static inline int Pla_CubeGetLit( word * p, int i ) { return (int)(p[i>>5] >> ((i<<1) & 63)) & 3; }
static inline void Pla_CubeSetLit( word * p, int i, Pla_Lit_t d ) { p[i>>5] |= (((word)d)<<((i<<1) & 63)); }
static inline void Pla_CubeXorLit( word * p, int i, Pla_Lit_t d ) { p[i>>5] ^= (((word)d)<<((i<<1) & 63)); }
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////
...@@ -170,6 +183,23 @@ static inline int Pla_CubesAreConsensus( word * p, word * q, int nWords, int * p ...@@ -170,6 +183,23 @@ static inline int Pla_CubesAreConsensus( word * p, word * q, int nWords, int * p
} }
return fFound; return fFound;
} }
static inline int Pla_TtCountOnesOne( word x )
{
x = x - ((x >> 1) & ABC_CONST(0x5555555555555555));
x = (x & ABC_CONST(0x3333333333333333)) + ((x >> 2) & ABC_CONST(0x3333333333333333));
x = (x + (x >> 4)) & ABC_CONST(0x0F0F0F0F0F0F0F0F);
x = x + (x >> 8);
x = x + (x >> 16);
x = x + (x >> 32);
return (int)(x & 0xFF);
}
static inline int Pla_TtCountOnes( word * p, int nWords )
{
int i, Count = 0;
for ( i = 0; i < nWords; i++ )
Count += Pla_TtCountOnesOne( p[i] );
return Count;
}
/**Function************************************************************* /**Function*************************************************************
...@@ -202,8 +232,9 @@ static inline void Pla_ManFree( Pla_Man_t * p ) ...@@ -202,8 +232,9 @@ static inline void Pla_ManFree( Pla_Man_t * p )
Vec_IntErase( &p->vHashes ); Vec_IntErase( &p->vHashes );
Vec_WrdErase( &p->vInBits ); Vec_WrdErase( &p->vInBits );
Vec_WrdErase( &p->vOutBits ); Vec_WrdErase( &p->vOutBits );
Vec_WecErase( &p->vLits ); Vec_WecErase( &p->vCubeLits );
Vec_WecErase( &p->vOccurs ); Vec_WecErase( &p->vOccurs );
Vec_IntErase( &p->vDivs );
ABC_FREE( p->pName ); ABC_FREE( p->pName );
ABC_FREE( p->pSpec ); ABC_FREE( p->pSpec );
ABC_FREE( p ); ABC_FREE( p );
...@@ -226,26 +257,33 @@ static inline int Pla_ManLitOutNum( Pla_Man_t * p ) ...@@ -226,26 +257,33 @@ static inline int Pla_ManLitOutNum( Pla_Man_t * p )
} }
static inline void Pla_ManPrintStats( Pla_Man_t * p, int fVerbose ) static inline void Pla_ManPrintStats( Pla_Man_t * p, int fVerbose )
{ {
printf( "%-16s : ", p->pName ); printf( "%-16s : ", Pla_ManName(p) );
printf( "In =%4d ", Pla_ManInNum(p) ); printf( "In =%4d ", Pla_ManInNum(p) );
printf( "Out =%4d ", Pla_ManOutNum(p) ); printf( "Out =%4d ", Pla_ManOutNum(p) );
printf( "Cube =%8d ", Pla_ManCubeNum(p) ); printf( "Cube =%8d ", Pla_ManCubeNum(p) );
printf( "LitIn =%8d ", Pla_ManLitInNum(p) ); printf( "LitIn =%8d ", Pla_ManLitInNum(p) );
printf( "LitOut =%8d ", Pla_ManLitOutNum(p) ); printf( "LitOut =%8d ", Pla_ManLitOutNum(p) );
printf( "Div =%6d ", Pla_ManDivNum(p) );
printf( "\n" ); printf( "\n" );
} }
/*=== plaFxch.c ========================================================*/
extern int Pla_ManPerformFxch( Pla_Man_t * p );
/*=== plaHash.c ========================================================*/ /*=== plaHash.c ========================================================*/
extern int Pla_ManHashDist1NumTest( Pla_Man_t * p ); extern int Pla_ManHashDist1NumTest( Pla_Man_t * p );
extern void Pla_ManComputeDist1Test( Pla_Man_t * p );
/*=== plaMan.c ========================================================*/ /*=== plaMan.c ========================================================*/
extern Pla_Man_t * Pla_ManPrimeDetector( int nVars ); extern Vec_Bit_t * Pla_ManPrimesTable( int nVars );
extern Pla_Man_t * Pla_ManPrimesDetector( int nVars );
extern Pla_Man_t * Pla_ManGenerate( int nIns, int nOuts, int nCubes, int fVerbose ); extern Pla_Man_t * Pla_ManGenerate( int nIns, int nOuts, int nCubes, int fVerbose );
extern void Pla_ManConvertFromBits( Pla_Man_t * p ); extern void Pla_ManConvertFromBits( Pla_Man_t * p );
extern void Pla_ManConvertToBits( Pla_Man_t * p ); extern void Pla_ManConvertToBits( Pla_Man_t * p );
extern int Pla_ManDist1NumTest( Pla_Man_t * p ); extern int Pla_ManDist1NumTest( Pla_Man_t * p );
/*=== plaMerge.c ========================================================*/ /*=== plaMerge.c ========================================================*/
extern int Pla_ManDist1Merge( Pla_Man_t * p ); extern int Pla_ManDist1Merge( Pla_Man_t * p );
/*=== plaSimple.c ========================================================*/
extern int Pla_ManFxPerformSimple( int nVars );
/*=== plaRead.c ========================================================*/ /*=== plaRead.c ========================================================*/
extern Pla_Man_t * Pla_ReadPla( char * pFileName ); extern Pla_Man_t * Pla_ReadPla( char * pFileName );
/*=== plaWrite.c ========================================================*/ /*=== plaWrite.c ========================================================*/
......
src/base/pla/plaCom.c
...@@ -359,7 +359,7 @@ int Abc_CommandGen( Abc_Frame_t * pAbc, int argc, char ** argv ) ...@@ -359,7 +359,7 @@ int Abc_CommandGen( Abc_Frame_t * pAbc, int argc, char ** argv )
} }
} }
if ( fPrimes ) if ( fPrimes )
p = Pla_ManPrimeDetector( nInputs ); p = Pla_ManPrimesDetector( nInputs );
else else
{ {
Gia_ManRandom( 1 ); Gia_ManRandom( 1 );
...@@ -444,12 +444,23 @@ usage: ...@@ -444,12 +444,23 @@ usage:
int Abc_CommandTest( Abc_Frame_t * pAbc, int argc, char ** argv ) int Abc_CommandTest( Abc_Frame_t * pAbc, int argc, char ** argv )
{ {
Pla_Man_t * p = Pla_AbcGetMan(pAbc); Pla_Man_t * p = Pla_AbcGetMan(pAbc);
int c, fVerbose = 0; int c, nVars = 4, fVerbose = 0;
Extra_UtilGetoptReset(); Extra_UtilGetoptReset();
while ( ( c = Extra_UtilGetopt( argc, argv, "vh" ) ) != EOF ) while ( ( c = Extra_UtilGetopt( argc, argv, "Nvh" ) ) != EOF )
{ {
switch ( c ) switch ( c )
{ {
case 'N':
if ( globalUtilOptind >= argc )
{
Abc_Print( -1, "Command line switch \"-N\" should be followed by an integer.\n" );
goto usage;
}
nVars = atoi(argv[globalUtilOptind]);
globalUtilOptind++;
if ( nVars < 0 )
goto usage;
break;
case 'v': case 'v':
fVerbose ^= 1; fVerbose ^= 1;
break; break;
...@@ -459,18 +470,22 @@ int Abc_CommandTest( Abc_Frame_t * pAbc, int argc, char ** argv ) ...@@ -459,18 +470,22 @@ int Abc_CommandTest( Abc_Frame_t * pAbc, int argc, char ** argv )
goto usage; goto usage;
} }
} }
/*
if ( p == NULL ) if ( p == NULL )
{ {
Abc_Print( 1, "Abc_CommandTest(): There is no current design.\n" ); Abc_Print( 1, "Abc_CommandTest(): There is no current design.\n" );
return 0; return 0;
} }
Pla_ManHashDist1NumTest( p ); */
//Pla_ManFxPerformSimple( nVars );
//Pla_ManConvertFromBits( p ); //Pla_ManConvertFromBits( p );
//Pla_ManConvertToBits( p ); //Pla_ManConvertToBits( p );
Pla_ManPerformFxch( p );
return 0; return 0;
usage: usage:
Abc_Print( -2, "usage: |test [-vh]\n" ); Abc_Print( -2, "usage: |test [-N num] [-vh]\n" );
Abc_Print( -2, "\t experiments with SOPs\n" ); Abc_Print( -2, "\t experiments with SOPs\n" );
Abc_Print( -2, "\t-N num : the number of variables [default = %d]\n", nVars );
Abc_Print( -2, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" ); Abc_Print( -2, "\t-v : toggle printing verbose information [default = %s]\n", fVerbose? "yes": "no" );
Abc_Print( -2, "\t-h : print the command usage\n"); Abc_Print( -2, "\t-h : print the command usage\n");
return 1; return 1;
......
src/base/pla/plaFxch.c 0 → 100644
/**CFile****************************************************************
FileName [plaFxch.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [SOP manager.]
Synopsis [Scalable SOP transformations.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - March 18, 2015.]
Revision [$Id: plaFxch.c,v 1.00 2014/09/12 00:00:00 alanmi Exp $]
***********************************************************************/
#include "pla.h"
#include "misc/vec/vecHash.h"
#include "misc/vec/vecQue.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
typedef struct Fxch_Obj_t_ Fxch_Obj_t;
struct Fxch_Obj_t_
{
unsigned Table : 30;
unsigned MarkN : 1;
unsigned MarkP : 1;
int Next;
int Prev;
int Cube;
};
typedef struct Fxch_Man_t_ Fxch_Man_t;
struct Fxch_Man_t_
{
// user's data
Vec_Wec_t vCubes; // cube -> lit
// internal data
Vec_Wec_t vLits; // lit -> cube
Vec_Int_t vRands; // random numbers for each literal
Vec_Int_t vCubeLinks; // first link for each cube
Fxch_Obj_t * pBins; // hash table (lits -> cube + lit)
Hash_IntMan_t * vHash; // divisor hash table
Vec_Que_t * vPrio; // priority queue for divisors by weight
Vec_Flt_t vWeights; // divisor weights
Vec_Wec_t vPairs; // cube pairs for each div
Vec_Wrd_t vDivs; // extracted divisors
// temporary data
Vec_Int_t vCubesS; // cube pairs for single
Vec_Int_t vCubesD; // cube pairs for double
Vec_Int_t vCube1; // first cube
Vec_Int_t vCube2; // second cube
// statistics
abctime timeStart; // starting time
int SizeMask; // hash table mask
int nVars; // original problem variables
int nLits; // the number of SOP literals
int nCompls; // the number of complements
int nPairsS; // number of lit pairs
int nPairsD; // number of cube pairs
};
#define Fxch_ManForEachCubeVec( vVec, vCubes, vCube, i ) \
for ( i = 0; (i < Vec_IntSize(vVec)) && ((vCube) = Vec_WecEntry(vCubes, Vec_IntEntry(vVec, i))); i++ )
static inline Vec_Int_t * Fxch_ManCube( Fxch_Man_t * p, int hCube ) { return Vec_WecEntry(&p->vCubes, Pla_CubeNum(hCube)); }
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Writes the current state of the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Fxch_ManWriteBlif( char * pFileName, Vec_Wec_t * vCubes, Vec_Wrd_t * vDivs )
{
// find the number of original variables
int nVarsInit = Vec_WrdCountZero(vDivs);
FILE * pFile = fopen( pFileName, "wb" );
if ( pFile == NULL )
printf( "Cannot open file \"%s\" for writing.\n", pFileName );
else
{
char * pLits = "-01?";
Vec_Str_t * vStr;
Vec_Int_t * vCube;
int i, k, Lit;
word Div;
// comment
fprintf( pFile, "# BLIF file written via PLA package in ABC on " );
fprintf( pFile, "%s", Extra_TimeStamp() );
fprintf( pFile, "\n\n" );
// header
fprintf( pFile, ".model %s\n", pFileName );
fprintf( pFile, ".inputs" );
for ( i = 0; i < nVarsInit; i++ )
fprintf( pFile, " i%d", i );
fprintf( pFile, "\n" );
fprintf( pFile, ".outputs o" );
fprintf( pFile, "\n" );
// SOP header
fprintf( pFile, ".names" );
for ( i = 0; i < Vec_WrdSize(vDivs); i++ )
fprintf( pFile, " i%d", i );
fprintf( pFile, " o\n" );
// SOP cubes
vStr = Vec_StrStart( Vec_WrdSize(vDivs) + 1 );
Vec_WecForEachLevel( vCubes, vCube, i )
{
if ( !Vec_IntSize(vCube) )
continue;
for ( k = 0; k < Vec_WrdSize(vDivs); k++ )
Vec_StrWriteEntry( vStr, k, '-' );
Vec_IntForEachEntry( vCube, Lit, k )
Vec_StrWriteEntry( vStr, Abc_Lit2Var(Lit), (char)(Abc_LitIsCompl(Lit) ? '0' : '1') );
fprintf( pFile, "%s 1\n", Vec_StrArray(vStr) );
}
Vec_StrFree( vStr );
// divisors
Vec_WrdForEachEntryStart( vDivs, Div, i, nVarsInit )
{
int pLits[2] = { (int)(Div & 0xFFFFFFFF), (int)(Div >> 32) };
fprintf( pFile, ".names" );
fprintf( pFile, " i%d", Abc_Lit2Var(pLits[0]) );
fprintf( pFile, " i%d", Abc_Lit2Var(pLits[1]) );
fprintf( pFile, " i%d\n", i );
fprintf( pFile, "%d%d 1\n", !Abc_LitIsCompl(pLits[0]), !Abc_LitIsCompl(pLits[1]) );
}
fprintf( pFile, ".end\n\n" );
fclose( pFile );
printf( "Written BLIF file \"%s\".\n", pFileName );
}
}
/**Function*************************************************************
Synopsis [Starting the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
Fxch_Man_t * Fxch_ManStart( Vec_Wec_t * vCubes, Vec_Wec_t * vLits )
{
Vec_Int_t * vCube; int i, LogSize;
Fxch_Man_t * p = ABC_CALLOC( Fxch_Man_t, 1 );
p->vCubes = *vCubes;
p->vLits = *vLits;
p->nVars = Vec_WecSize(vLits)/2;
p->nLits = 0;
// random numbers
Gia_ManRandom( 1 );
Vec_IntGrow( &p->vRands, 2*p->nVars );
for ( i = 0; i < 2*p->nVars; i++ )
Vec_IntPush( &p->vRands, Gia_ManRandom(0) & 0x3FFFFFF ); // assert( LogSize <= 26 );
// create cube links
Vec_IntGrow( &p->vCubeLinks, Vec_WecSize(&p->vCubes) );
Vec_WecForEachLevel( vCubes, vCube, i )
{
Vec_IntPush( &p->vCubeLinks, p->nLits+1 );
p->nLits += Vec_IntSize(vCube);
}
assert( Vec_IntSize(&p->vCubeLinks) == Vec_WecSize(&p->vCubes) );
// create table
LogSize = Abc_Base2Log( p->nLits+1 );
assert( LogSize <= 26 );
p->SizeMask = (1 << LogSize) - 1;
p->pBins = ABC_CALLOC( Fxch_Obj_t, p->SizeMask + 1 );
assert( p->nLits+1 < p->SizeMask+1 );
// divisor weights and cube pairs
Vec_FltGrow( &p->vWeights, 1000 );
Vec_FltPush( &p->vWeights, -1 );
Vec_WecGrow( &p->vPairs, 1000 );
Vec_WecPushLevel( &p->vPairs );
// prepare divisors
Vec_WrdGrow( &p->vDivs, p->nVars + 1000 );
Vec_WrdFill( &p->vDivs, p->nVars, 0 );
return p;
}
void Fxch_ManStop( Fxch_Man_t * p )
{
Vec_WecErase( &p->vCubes );
Vec_WecErase( &p->vLits );
Vec_IntErase( &p->vRands );
Vec_IntErase( &p->vCubeLinks );
Hash_IntManStop( p->vHash );
Vec_QueFree( p->vPrio );
Vec_FltErase( &p->vWeights );
Vec_WecErase( &p->vPairs );
Vec_WrdErase( &p->vDivs );
Vec_IntErase( &p->vCubesS );
Vec_IntErase( &p->vCubesD );
Vec_IntErase( &p->vCube1 );
Vec_IntErase( &p->vCube2 );
ABC_FREE( p->pBins );
ABC_FREE( p );
}
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Fxch_TabCompare( Fxch_Man_t * p, int hCube1, int hCube2 )
{
Vec_Int_t * vCube1 = Fxch_ManCube( p, hCube1 );
Vec_Int_t * vCube2 = Fxch_ManCube( p, hCube2 );
if ( !Vec_IntSize(vCube1) || !Vec_IntSize(vCube2) || Vec_IntSize(vCube1) != Vec_IntSize(vCube2) )
return 0;
Vec_IntClear( &p->vCube1 );
Vec_IntClear( &p->vCube2 );
Vec_IntAppendSkip( &p->vCube1, vCube1, Pla_CubeLit(hCube1) );
Vec_IntAppendSkip( &p->vCube2, vCube2, Pla_CubeLit(hCube2) );
return Vec_IntEqual( &p->vCube1, &p->vCube2 );
}
static inline void Fxch_CompressCubes( Fxch_Man_t * p, Vec_Int_t * vLit2Cube )
{
int i, hCube, k = 0;
Vec_IntForEachEntry( vLit2Cube, hCube, i )
if ( Vec_IntSize(Vec_WecEntry(&p->vCubes, hCube)) > 0 )
Vec_IntWriteEntry( vLit2Cube, k++, hCube );
Vec_IntShrink( vLit2Cube, k );
}
static inline int Fxch_CollectSingles( Vec_Int_t * vArr1, Vec_Int_t * vArr2, Vec_Int_t * vArr )
{
int * pBeg1 = vArr1->pArray;
int * pBeg2 = vArr2->pArray;
int * pEnd1 = vArr1->pArray + vArr1->nSize;
int * pEnd2 = vArr2->pArray + vArr2->nSize;
int * pBeg1New = vArr1->pArray;
int * pBeg2New = vArr2->pArray;
Vec_IntClear( vArr );
while ( pBeg1 < pEnd1 && pBeg2 < pEnd2 )
{
if ( Pla_CubeNum(*pBeg1) == Pla_CubeNum(*pBeg2) )
Vec_IntPushTwo( vArr, *pBeg1, *pBeg2 ), pBeg1++, pBeg2++;
else if ( *pBeg1 < *pBeg2 )
*pBeg1New++ = *pBeg1++;
else
*pBeg2New++ = *pBeg2++;
}
while ( pBeg1 < pEnd1 )
*pBeg1New++ = *pBeg1++;
while ( pBeg2 < pEnd2 )
*pBeg2New++ = *pBeg2++;
Vec_IntShrink( vArr1, pBeg1New - vArr1->pArray );
Vec_IntShrink( vArr2, pBeg2New - vArr2->pArray );
return Vec_IntSize(vArr);
}
static inline void Fxch_CollectDoubles( Fxch_Man_t * p, Vec_Int_t * vPairs, Vec_Int_t * vRes, int Lit0, int Lit1 )
{
int i, hCube1, hCube2;
Vec_IntClear( vRes );
Vec_IntForEachEntryDouble( vPairs, hCube1, hCube2, i )
if ( Fxch_TabCompare(p, hCube1, hCube2) &&
Vec_IntEntry(Fxch_ManCube(p, hCube1), Pla_CubeLit(hCube1)) == Lit0 &&
Vec_IntEntry(Fxch_ManCube(p, hCube2), Pla_CubeLit(hCube2)) == Lit1 )
Vec_IntPushTwo( vRes, hCube1, hCube2 );
Vec_IntClear( vPairs );
// order pairs in the increasing order of the first cube
//Vec_IntSortPairs( vRes );
}
static inline void Fxch_CompressLiterals2( Vec_Int_t * p, int iInd1, int iInd2 )
{
int i, Lit, k = 0;
assert( iInd1 >= 0 && iInd1 < Vec_IntSize(p) );
if ( iInd2 != -1 )
assert( iInd1 >= 0 && iInd1 < Vec_IntSize(p) );
Vec_IntForEachEntry( p, Lit, i )
if ( i != iInd1 && i != iInd2 )
Vec_IntWriteEntry( p, k++, Lit );
Vec_IntShrink( p, k );
}
static inline void Fxch_CompressLiterals( Vec_Int_t * p, int iLit1, int iLit2 )
{
int i, Lit, k = 0;
Vec_IntForEachEntry( p, Lit, i )
if ( Lit != iLit1 && Lit != iLit2 )
Vec_IntWriteEntry( p, k++, Lit );
assert( Vec_IntSize(p) == k + 2 );
Vec_IntShrink( p, k );
}
static inline void Fxch_FilterCubes( Fxch_Man_t * p, Vec_Int_t * vCubesS, int Lit0, int Lit1 )
{
Vec_Int_t * vCube;
int i, k, Lit, iCube, n = 0;
int fFound0, fFound1;
Vec_IntForEachEntry( vCubesS, iCube, i )
{
vCube = Vec_WecEntry( &p->vCubes, iCube );
fFound0 = fFound1 = 0;
Vec_IntForEachEntry( vCube, Lit, k )
{
if ( Lit == Lit0 )
fFound0 = 1;
else if ( Lit == Lit1 )
fFound1 = 1;
}
if ( fFound0 && fFound1 )
Vec_IntWriteEntry( vCubesS, n++, Pla_CubeHandle(iCube, 255) );
}
Vec_IntShrink( vCubesS, n );
}
/**Function*************************************************************
Synopsis [Divisor addition removal.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Fxch_DivisorAdd( Fxch_Man_t * p, int Lit0, int Lit1, int Weight )
{
int iDiv;
assert( Lit0 != Lit1 );
if ( Lit0 < Lit1 )
iDiv = Hash_Int2ManInsert( p->vHash, Lit0, Lit1, 0 );
else
iDiv = Hash_Int2ManInsert( p->vHash, Lit1, Lit0, 0 );
if ( iDiv == Vec_FltSize(&p->vWeights) )
{
Vec_FltPush( &p->vWeights, -2 );
Vec_WecPushLevel( &p->vPairs );
assert( Vec_FltSize(&p->vWeights) == Vec_WecSize(&p->vPairs) );
}
Vec_FltAddToEntry( &p->vWeights, iDiv, Weight );
if ( p->vPrio )
{
if ( Vec_QueIsMember(p->vPrio, iDiv) )
Vec_QueUpdate( p->vPrio, iDiv );
else
Vec_QuePush( p->vPrio, iDiv );
//assert( iDiv < Vec_QueSize(p->vPrio) );
}
return iDiv;
}
void Fxch_DivisorRemove( Fxch_Man_t * p, int Lit0, int Lit1, int Weight )
{
int iDiv;
assert( Lit0 != Lit1 );
if ( Lit0 < Lit1 )
iDiv = *Hash_Int2ManLookup( p->vHash, Lit0, Lit1 );
else
iDiv = *Hash_Int2ManLookup( p->vHash, Lit1, Lit0 );
assert( iDiv > 0 && iDiv < Vec_FltSize(&p->vWeights) );
Vec_FltAddToEntry( &p->vWeights, iDiv, -Weight );
if ( Vec_QueIsMember(p->vPrio, iDiv) )
Vec_QueUpdate( p->vPrio, iDiv );
}
/**Function*************************************************************
Synopsis [Starting the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline Fxch_Obj_t * Fxch_TabBin( Fxch_Man_t * p, int Value ) { return p->pBins + (Value & p->SizeMask); }
static inline Fxch_Obj_t * Fxch_TabEntry( Fxch_Man_t * p, int i ) { return i ? p->pBins + i : NULL; }
static inline int Fxch_TabEntryId( Fxch_Man_t * p, Fxch_Obj_t * pEnt ) { assert(pEnt > p->pBins); return pEnt - p->pBins; }
static inline void Fxch_TabMarkPair( Fxch_Man_t * p, int i, int j )
{
Fxch_Obj_t * pI = Fxch_TabEntry(p, i);
Fxch_Obj_t * pJ = Fxch_TabEntry(p, j);
assert( pI->Next == j );
assert( pJ->Prev == i );
assert( pI->MarkN == 0 );
assert( pI->MarkP == 0 );
assert( pJ->MarkN == 0 );
assert( pJ->MarkP == 0 );
pI->MarkN = 1;
pJ->MarkP = 1;
}
static inline void Fxch_TabUnmarkPair( Fxch_Man_t * p, int i, int j )
{
Fxch_Obj_t * pI = Fxch_TabEntry(p, i);
Fxch_Obj_t * pJ = Fxch_TabEntry(p, j);
assert( pI->Next == j );
assert( pJ->Prev == i );
assert( pI->MarkN == 1 );
assert( pI->MarkP == 0 );
assert( pJ->MarkN == 0 );
assert( pJ->MarkP == 1 );
pI->MarkN = 0;
pJ->MarkP = 0;
}
static inline void Fxch_TabInsertLink( Fxch_Man_t * p, int i, int j, int fSkipCheck )
{
Fxch_Obj_t * pI = Fxch_TabEntry(p, i);
Fxch_Obj_t * pN = Fxch_TabEntry(p, pI->Next);
Fxch_Obj_t * pJ = Fxch_TabEntry(p, j);
//assert( pJ->Cube != 0 );
assert( pN->Prev == i );
assert( fSkipCheck || pI->MarkN == 0 );
assert( fSkipCheck || pN->MarkP == 0 );
assert( fSkipCheck || pJ->MarkN == 0 );
assert( fSkipCheck || pJ->MarkP == 0 );
pJ->Next = pI->Next; pI->Next = j;
pJ->Prev = i; pN->Prev = j;
}
static inline void Fxch_TabExtractLink( Fxch_Man_t * p, int i, int j )
{
Fxch_Obj_t * pI = Fxch_TabEntry(p, i);
Fxch_Obj_t * pJ = Fxch_TabEntry(p, j);
Fxch_Obj_t * pN = Fxch_TabEntry(p, pJ->Next);
//assert( pJ->Cube != 0 );
assert( pI->Next == j );
assert( pJ->Prev == i );
assert( pN->Prev == j );
assert( pI->MarkN == 0 );
assert( pJ->MarkP == 0 );
assert( pJ->MarkN == 0 );
assert( pN->MarkP == 0 );
pI->Next = pJ->Next; pJ->Next = 0;
pN->Prev = pJ->Prev; pJ->Prev = 0;
}
static inline void Fxch_TabInsert( Fxch_Man_t * p, int iLink, int Value, int hCube )
{
int iEnt, iDiv, Lit0, Lit1, fStart = 1;
Fxch_Obj_t * pEnt;
Fxch_Obj_t * pBin = Fxch_TabBin( p, Value );
Fxch_Obj_t * pCell = Fxch_TabEntry( p, iLink );
assert( pCell->MarkN == 0 );
assert( pCell->MarkP == 0 );
assert( pCell->Cube == 0 );
pCell->Cube = hCube;
if ( pBin->Table == 0 )
{
pBin->Table = pCell->Next = pCell->Prev = iLink;
return;
}
// find equal cubes
for ( iEnt = pBin->Table; iEnt != (int)pBin->Table || fStart; iEnt = pEnt->Next, fStart = 0 )
{
pEnt = Fxch_TabBin( p, iEnt );
if ( pEnt->MarkN || pEnt->MarkP || !Fxch_TabCompare(p, pEnt->Cube, hCube) )
continue;
Fxch_TabInsertLink( p, iEnt, iLink, 0 );
Fxch_TabMarkPair( p, iEnt, iLink );
// get literals
Lit0 = Vec_IntEntry( Fxch_ManCube(p, hCube), Pla_CubeLit(hCube) );
Lit1 = Vec_IntEntry( Fxch_ManCube(p, pEnt->Cube), Pla_CubeLit(pEnt->Cube) );
// increment divisor weight
iDiv = Fxch_DivisorAdd( p, Abc_LitNot(Lit0), Abc_LitNot(Lit1), Vec_IntSize(Fxch_ManCube(p, hCube)) );
// add divisor pair
assert( iDiv < Vec_WecSize(&p->vPairs) );
if ( Lit0 < Lit1 )
{
Vec_WecPush( &p->vPairs, iDiv, hCube );
Vec_WecPush( &p->vPairs, iDiv, pEnt->Cube );
}
else
{
Vec_WecPush( &p->vPairs, iDiv, pEnt->Cube );
Vec_WecPush( &p->vPairs, iDiv, hCube );
}
p->nPairsD++;
return;
}
assert( iEnt == (int)pBin->Table );
pEnt = Fxch_TabBin( p, iEnt );
Fxch_TabInsertLink( p, pEnt->Prev, iLink, 1 );
}
static inline void Fxch_TabExtract( Fxch_Man_t * p, int iLink, int Value, int hCube )
{
int Lit0, Lit1;
Fxch_Obj_t * pPair = NULL;
Fxch_Obj_t * pBin = Fxch_TabBin( p, Value );
Fxch_Obj_t * pLink = Fxch_TabEntry( p, iLink );
assert( pLink->Cube == hCube );
if ( pLink->MarkN )
{
pPair = Fxch_TabEntry( p, pLink->Next );
Fxch_TabUnmarkPair( p, iLink, pLink->Next );
}
else if ( pLink->MarkP )
{
pPair = Fxch_TabEntry( p, pLink->Prev );
Fxch_TabUnmarkPair( p, pLink->Prev, iLink );
}
if ( (int)pBin->Table == iLink )
pBin->Table = pLink->Next != iLink ? pLink->Next : 0;
if ( pLink->Next == iLink )
{
assert( pLink->Prev == iLink );
pLink->Next = pLink->Prev = 0;
}
else
Fxch_TabExtractLink( p, pLink->Prev, iLink );
pLink->Cube = 0;
if ( pPair == NULL )
return;
assert( Fxch_TabCompare(p, pPair->Cube, hCube) );
// get literals
Lit0 = Vec_IntEntry( Fxch_ManCube(p, hCube), Pla_CubeLit(hCube) );
Lit1 = Vec_IntEntry( Fxch_ManCube(p, pPair->Cube), Pla_CubeLit(pPair->Cube) );
// decrement divisor weight
Fxch_DivisorRemove( p, Abc_LitNot(Lit0), Abc_LitNot(Lit1), Vec_IntSize(Fxch_ManCube(p, hCube)) );
p->nPairsD--;
}
/**Function*************************************************************
Synopsis [Starting the manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Fxch_TabSingleDivisors( Fxch_Man_t * p, int iCube, int fAdd )
{
Vec_Int_t * vCube = Vec_WecEntry( &p->vCubes, iCube );
int i, k, Lit, Lit2;
if ( Vec_IntSize(vCube) < 2 )
return 0;
Vec_IntForEachEntry( vCube, Lit, i )
Vec_IntForEachEntryStart( vCube, Lit2, k, i+1 )
{
assert( Lit < Lit2 );
if ( fAdd )
Fxch_DivisorAdd( p, Lit, Lit2, 1 ), p->nPairsS++;
else
Fxch_DivisorRemove( p, Lit, Lit2, 1 ), p->nPairsS--;
}
return Vec_IntSize(vCube) * (Vec_IntSize(vCube) - 1) / 2;
}
int Fxch_TabDoubleDivisors( Fxch_Man_t * p, int iCube, int fAdd )
{
Vec_Int_t * vCube = Vec_WecEntry( &p->vCubes, iCube );
int iLinkFirst = Vec_IntEntry( &p->vCubeLinks, iCube );
int k, Lit, Value = 0;
Vec_IntForEachEntry( vCube, Lit, k )
Value += Vec_IntEntry(&p->vRands, Lit);
Vec_IntForEachEntry( vCube, Lit, k )
{
Value -= Vec_IntEntry(&p->vRands, Lit);
if ( fAdd )
Fxch_TabInsert( p, iLinkFirst + k, Value, Pla_CubeHandle(iCube, k) );
else
Fxch_TabExtract( p, iLinkFirst + k, Value, Pla_CubeHandle(iCube, k) );
Value += Vec_IntEntry(&p->vRands, Lit);
}
return 1;
}
void Fxch_ManCreateDivisors( Fxch_Man_t * p )
{
float Weight; int i;
// alloc hash table
assert( p->vHash == NULL );
p->vHash = Hash_IntManStart( 1000 );
// create single-cube two-literal divisors
for ( i = 0; i < Vec_WecSize(&p->vCubes); i++ )
Fxch_TabSingleDivisors( p, i, 1 ); // add - no update
// create two-cube divisors
for ( i = 0; i < Vec_WecSize(&p->vCubes); i++ )
Fxch_TabDoubleDivisors( p, i, 1 ); // add - no update
// create queue with all divisors
p->vPrio = Vec_QueAlloc( Vec_FltSize(&p->vWeights) );
Vec_QueSetPriority( p->vPrio, Vec_FltArrayP(&p->vWeights) );
Vec_FltForEachEntry( &p->vWeights, Weight, i )
if ( Weight > 0.0 )
Vec_QuePush( p->vPrio, i );
}
/**Function*************************************************************
Synopsis [Updates the data-structure when one divisor is selected.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Fxch_ManUpdate( Fxch_Man_t * p, int iDiv )
{
Vec_Int_t * vCube1, * vCube2, * vLitP, * vLitN;
int nLitsNew = p->nLits - (int)Vec_FltEntry(&p->vWeights, iDiv);
int i, Lit0, Lit1, hCube1, hCube2, iVarNew;
//float Diff = Vec_FltEntry(&p->vWeights, iDiv) - (float)((int)Vec_FltEntry(&p->vWeights, iDiv));
//assert( Diff > 0.0 && Diff < 1.0 );
// get the divisor and select pivot variables
Vec_IntPush( &p->vRands, Gia_ManRandom(0) & 0x3FFFFFF );
Vec_IntPush( &p->vRands, Gia_ManRandom(0) & 0x3FFFFFF );
Lit0 = Hash_IntObjData0( p->vHash, iDiv );
Lit1 = Hash_IntObjData1( p->vHash, iDiv );
assert( Lit0 >= 0 && Lit1 >= 0 && Lit0 < Lit1 );
Vec_WrdPush( &p->vDivs, ((word)Lit1 << 32) | (word)Lit0 );
// if the input cover is not prime, it may happen that we are extracting divisor (x + !x)
// although it is not strictly correct, it seems to be fine to just skip such divisors
// if ( Abc_Lit2Var(Lit0) == Abc_Lit2Var(Lit1) && Vec_IntSize(Hsh_VecReadEntry(p->vHash, iDiv)) == 2 )
// return;
// collect single-cube-divisor cubes
vLitP = Vec_WecEntry(&p->vLits, Lit0);
vLitN = Vec_WecEntry(&p->vLits, Lit1);
Fxch_CompressCubes( p, vLitP );
Fxch_CompressCubes( p, vLitN );
// Fxch_CollectSingles( vLitP, vLitN, &p->vCubesS );
// assert( Vec_IntSize(&p->vCubesS) % 2 == 0 );
Vec_IntTwoRemoveCommon( vLitP, vLitN, &p->vCubesS );
Fxch_FilterCubes( p, &p->vCubesS, Lit0, Lit1 );
// collect double-cube-divisor cube pairs
Fxch_CollectDoubles( p, Vec_WecEntry(&p->vPairs, iDiv), &p->vCubesD, Abc_LitNot(Lit0), Abc_LitNot(Lit1) );
assert( Vec_IntSize(&p->vCubesD) % 2 == 0 );
Vec_IntUniqifyPairs( &p->vCubesD );
assert( Vec_IntSize(&p->vCubesD) % 2 == 0 );
// subtract cost of single-cube divisors
// Vec_IntForEachEntryDouble( &p->vCubesS, hCube1, hCube2, i )
Vec_IntForEachEntry( &p->vCubesS, hCube1, i )
Fxch_TabSingleDivisors( p, Pla_CubeNum(hCube1), 0 ); // remove - update
Vec_IntForEachEntryDouble( &p->vCubesD, hCube1, hCube2, i )
Fxch_TabSingleDivisors( p, Pla_CubeNum(hCube1), 0 ), // remove - update
Fxch_TabSingleDivisors( p, Pla_CubeNum(hCube2), 0 ); // remove - update
// subtract cost of double-cube divisors
// Vec_IntForEachEntryDouble( &p->vCubesS, hCube1, hCube2, i )
Vec_IntForEachEntry( &p->vCubesS, hCube1, i )
{
//printf( "%d ", Pla_CubeNum(hCube1) );
Fxch_TabDoubleDivisors( p, Pla_CubeNum(hCube1), 0 ); // remove - update
}
//printf( "\n" );
Vec_IntForEachEntryDouble( &p->vCubesD, hCube1, hCube2, i )
{
//printf( "%d ", Pla_CubeNum(hCube1) );
//printf( "%d ", Pla_CubeNum(hCube2) );
Fxch_TabDoubleDivisors( p, Pla_CubeNum(hCube1), 0 ), // remove - update
Fxch_TabDoubleDivisors( p, Pla_CubeNum(hCube2), 0 ); // remove - update
}
//printf( "\n" );
// create new literals
p->nLits += 2;
iVarNew = Vec_WecSize( &p->vLits ) / 2;
vLitP = Vec_WecPushLevel( &p->vLits );
vLitN = Vec_WecPushLevel( &p->vLits );
vLitP = Vec_WecEntry( &p->vLits, Vec_WecSize(&p->vLits) - 2 );
// update single-cube divisor cubes
// Vec_IntForEachEntryDouble( &p->vCubesS, hCube1, hCube2, i )
Vec_IntForEachEntry( &p->vCubesS, hCube1, i )
{
// int Lit0s, Lit1s;
vCube1 = Fxch_ManCube( p, hCube1 );
// Lit0s = Vec_IntEntry(vCube1, Pla_CubeLit(hCube1));
// Lit1s = Vec_IntEntry(vCube1, Pla_CubeLit(hCube2));
// assert( Pla_CubeNum(hCube1) == Pla_CubeNum(hCube2) );
// assert( Vec_IntEntry(vCube1, Pla_CubeLit(hCube1)) == Lit0 );
// assert( Vec_IntEntry(vCube1, Pla_CubeLit(hCube2)) == Lit1 );
Fxch_CompressLiterals( vCube1, Lit0, Lit1 );
// Vec_IntPush( vLitP, Pla_CubeHandle(Pla_CubeNum(hCube1), Vec_IntSize(vCube1)) );
Vec_IntPush( vLitP, Pla_CubeNum(hCube1) );
Vec_IntPush( vCube1, Abc_Var2Lit(iVarNew, 0) );
//if ( Pla_CubeNum(hCube1) == 3 )
// printf( "VecSize = %d\n", Vec_IntSize(vCube1) );
p->nLits--;
}
// update double-cube divisor cube pairs
Vec_IntForEachEntryDouble( &p->vCubesD, hCube1, hCube2, i )
{
vCube1 = Fxch_ManCube( p, hCube1 );
vCube2 = Fxch_ManCube( p, hCube2 );
assert( Vec_IntEntry(vCube1, Pla_CubeLit(hCube1)) == Abc_LitNot(Lit0) );
assert( Vec_IntEntry(vCube2, Pla_CubeLit(hCube2)) == Abc_LitNot(Lit1) );
Fxch_CompressLiterals2( vCube1, Pla_CubeLit(hCube1), -1 );
// Vec_IntPush( vLitN, Pla_CubeHandle(Pla_CubeNum(hCube1), Vec_IntSize(vCube1)) );
Vec_IntPush( vLitN, Pla_CubeNum(hCube1) );
Vec_IntPush( vCube1, Abc_Var2Lit(iVarNew, 1) );
p->nLits -= Vec_IntSize(vCube2);
//if ( Pla_CubeNum(hCube1) == 3 )
// printf( "VecSize = %d\n", Vec_IntSize(vCube1) );
// remove second cube
Vec_IntClear( vCube2 );
}
Vec_IntSort( vLitN, 0 );
Vec_IntSort( vLitP, 0 );
// add cost of single-cube divisors
// Vec_IntForEachEntryDouble( &p->vCubesS, hCube1, hCube2, i )
Vec_IntForEachEntry( &p->vCubesS, hCube1, i )
Fxch_TabSingleDivisors( p, Pla_CubeNum(hCube1), 1 ); // add - update
Vec_IntForEachEntryDouble( &p->vCubesD, hCube1, hCube2, i )
Fxch_TabSingleDivisors( p, Pla_CubeNum(hCube1), 1 ); // add - update
// add cost of double-cube divisors
// Vec_IntForEachEntryDouble( &p->vCubesS, hCube1, hCube2, i )
Vec_IntForEachEntry( &p->vCubesS, hCube1, i )
Fxch_TabDoubleDivisors( p, Pla_CubeNum(hCube1), 1 ); // add - update
Vec_IntForEachEntryDouble( &p->vCubesD, hCube1, hCube2, i )
Fxch_TabDoubleDivisors( p, Pla_CubeNum(hCube1), 1 ); // add - update
// check predicted improvement: (new SOP lits == old SOP lits - divisor weight)
//assert( p->nLits == nLitsNew );
}
/**Function*************************************************************
Synopsis [Implements the improved fast_extract algorithm.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static void Fxch_PrintStats( Fxch_Man_t * p, abctime clk )
{
printf( "Num =%6d ", Vec_WrdSize(&p->vDivs) - p->nVars );
printf( "Cubes =%8d ", Vec_WecSizeUsed(&p->vCubes) );
printf( "Lits =%8d ", p->nLits );
printf( "Divs =%8d ", Hash_IntManEntryNum(p->vHash) );
printf( "Divs+ =%8d ", Vec_QueSize(p->vPrio) );
printf( "PairS =%6d ", p->nPairsS );
printf( "PairD =%6d ", p->nPairsD );
Abc_PrintTime( 1, "Time", clk );
// printf( "\n" );
}
static inline void Fxch_PrintDivOne( Fxch_Man_t * p, int iDiv )
{
int i;
int Lit0 = Hash_IntObjData0( p->vHash, iDiv );
int Lit1 = Hash_IntObjData1( p->vHash, iDiv );
assert( Lit0 >= 0 && Lit1 >= 0 && Lit0 < Lit1 );
printf( "Div %4d : ", iDiv );
printf( "Weight %12.5f ", Vec_FltEntry(&p->vWeights, iDiv) );
printf( "Pairs = %5d ", Vec_IntSize(Vec_WecEntry(&p->vPairs, iDiv))/2 );
for ( i = 0; i < Vec_WrdSize(&p->vDivs); i++ )
{
if ( i == Abc_Lit2Var(Lit0) )
printf( "%d", !Abc_LitIsCompl(Lit0) );
else if ( i == Abc_Lit2Var(Lit1) )
printf( "%d", !Abc_LitIsCompl(Lit1) );
else
printf( "-" );
}
printf( "\n" );
}
static void Fxch_PrintDivisors( Fxch_Man_t * p )
{
int iDiv;
for ( iDiv = 1; iDiv < Vec_FltSize(&p->vWeights); iDiv++ )
Fxch_PrintDivOne( p, iDiv );
printf( "\n" );
}
int Fxch_ManFastExtract( Fxch_Man_t * p, int fVerbose, int fVeryVerbose )
{
int nNewNodesMax = ABC_INFINITY;
abctime clk = Abc_Clock();
int i, iDiv;
Fxch_ManCreateDivisors( p );
// Fxch_PrintDivisors( p );
if ( fVerbose )
Fxch_PrintStats( p, Abc_Clock() - clk );
p->timeStart = Abc_Clock();
for ( i = 0; i < nNewNodesMax && Vec_QueTopPriority(p->vPrio) > 0.0; i++ )
{
iDiv = Vec_QuePop(p->vPrio);
//if ( fVerbose )
// Fxch_PrintStats( p, Abc_Clock() - clk );
if ( fVeryVerbose )
Fxch_PrintDivOne( p, iDiv );
Fxch_ManUpdate( p, iDiv );
}
if ( fVerbose )
Fxch_PrintStats( p, Abc_Clock() - clk );
return 1;
}
/**Function*************************************************************
Synopsis [Implements the improved fast_extract algorithm.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Pla_ManPerformFxch( Pla_Man_t * p )
{
char pFileName[1000];
Fxch_Man_t * pFxch;
Pla_ManConvertFromBits( p );
pFxch = Fxch_ManStart( &p->vCubeLits, &p->vOccurs );
Vec_WecZero( &p->vCubeLits );
Vec_WecZero( &p->vOccurs );
Fxch_ManFastExtract( pFxch, 1, 0 );
sprintf( pFileName, "%s.blif", Pla_ManName(p) );
//Fxch_ManWriteBlif( pFileName, &pFxch->vCubes, &pFxch->vDivs );
Fxch_ManStop( pFxch );
return 1;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
src/base/pla/plaHash.c
...@@ -63,7 +63,7 @@ static unsigned s_PlaHashValues[PLA_HASH_VALUE_NUM] = ...@@ -63,7 +63,7 @@ static unsigned s_PlaHashValues[PLA_HASH_VALUE_NUM] =
0xd0fa29f1,0x804cac5e,0x2c226798,0x462f624c,0xad05b377,0x22924fcd,0xfbea205c,0x1b47586d 0xd0fa29f1,0x804cac5e,0x2c226798,0x462f624c,0xad05b377,0x22924fcd,0xfbea205c,0x1b47586d
}; };
static inline int Pla_HashValue( int i ) { assert( i >= 0 && i < PLA_HASH_VALUE_NUM ); return s_PlaHashValues[i] & 0xFFFFFF; } static inline int Pla_HashValue( int i ) { assert( i >= 0 && i < PLA_HASH_VALUE_NUM ); return s_PlaHashValues[i] & 0x3FFFFFF; }
#define PLA_LIT_UNUSED 0xFFFF #define PLA_LIT_UNUSED 0xFFFF
...@@ -107,7 +107,7 @@ static inline Tab_Obj_t * Tab_ManEntry( Tab_Man_t * p, int i ) { return i ? p ...@@ -107,7 +107,7 @@ static inline Tab_Obj_t * Tab_ManEntry( Tab_Man_t * p, int i ) { return i ? p
static inline Tab_Man_t * Tab_ManAlloc( int LogSize, Pla_Man_t * pMan ) static inline Tab_Man_t * Tab_ManAlloc( int LogSize, Pla_Man_t * pMan )
{ {
Tab_Man_t * p = ABC_CALLOC( Tab_Man_t, 1 ); Tab_Man_t * p = ABC_CALLOC( Tab_Man_t, 1 );
assert( LogSize >= 4 && LogSize <= 24 ); assert( LogSize >= 4 && LogSize <= 26 );
p->SizeMask = (1 << LogSize) - 1; p->SizeMask = (1 << LogSize) - 1;
p->pBins = ABC_CALLOC( Tab_Obj_t, p->SizeMask + 1 ); p->pBins = ABC_CALLOC( Tab_Obj_t, p->SizeMask + 1 );
p->nBins = 1; p->nBins = 1;
...@@ -119,11 +119,12 @@ static inline void Tab_ManFree( Tab_Man_t * p ) ...@@ -119,11 +119,12 @@ static inline void Tab_ManFree( Tab_Man_t * p )
ABC_FREE( p->pBins ); ABC_FREE( p->pBins );
ABC_FREE( p ); ABC_FREE( p );
} }
static inline void Tab_ManHashInsert( Tab_Man_t * p, int Value, int iCube ) static inline void Tab_ManHashInsert( Tab_Man_t * p, int Value, int iCube, int iVar )
{ {
Tab_Obj_t * pBin = Tab_ManBin( p, Value ); Tab_Obj_t * pBin = Tab_ManBin( p, Value );
Tab_Obj_t * pCell = p->pBins + p->nBins; Tab_Obj_t * pCell = p->pBins + p->nBins;
pCell->Cube = iCube; pCell->Cube = iCube;
pCell->VarA = iVar;
pCell->Next = pBin->Table; pCell->Next = pBin->Table;
pBin->Table = p->nBins++; pBin->Table = p->nBins++;
} }
...@@ -131,10 +132,17 @@ static inline int Tab_ManHashLookup( Tab_Man_t * p, int Value, Vec_Int_t * vCube ...@@ -131,10 +132,17 @@ static inline int Tab_ManHashLookup( Tab_Man_t * p, int Value, Vec_Int_t * vCube
{ {
Tab_Obj_t * pEnt, * pBin = Tab_ManBin( p, Value ); Tab_Obj_t * pEnt, * pBin = Tab_ManBin( p, Value );
for ( pEnt = Tab_ManEntry(p, pBin->Table); pEnt; pEnt = Tab_ManEntry(p, pEnt->Next) ) for ( pEnt = Tab_ManEntry(p, pBin->Table); pEnt; pEnt = Tab_ManEntry(p, pEnt->Next) )
if ( Vec_IntEqual( Vec_WecEntry(&p->pMan->vLits, pEnt->Cube), vCube ) ) if ( Vec_IntEqual( Vec_WecEntry(&p->pMan->vCubeLits, pEnt->Cube), vCube ) )
return 1; return 1;
return 0; return 0;
} }
static inline void Tab_ManHashCollect( Tab_Man_t * p, int iBin, Vec_Int_t * vEntries )
{
Tab_Obj_t * pEnt, * pBin = Tab_ManBin( p, iBin );
Vec_IntClear( vEntries );
for ( pEnt = Tab_ManEntry(p, pBin->Table); pEnt; pEnt = Tab_ManEntry(p, pEnt->Next) )
Vec_IntPushTwo( vEntries, pEnt->Cube, pEnt->VarA );
}
/**Function************************************************************* /**Function*************************************************************
...@@ -160,11 +168,11 @@ void Pla_ManHashCubes( Pla_Man_t * p, Tab_Man_t * pTab ) ...@@ -160,11 +168,11 @@ void Pla_ManHashCubes( Pla_Man_t * p, Tab_Man_t * pTab )
Vec_Int_t * vCube; int i, Value; Vec_Int_t * vCube; int i, Value;
Vec_IntClear( &p->vHashes ); Vec_IntClear( &p->vHashes );
Vec_IntGrow( &p->vHashes, Pla_ManCubeNum(p) ); Vec_IntGrow( &p->vHashes, Pla_ManCubeNum(p) );
Vec_WecForEachLevel( &p->vLits, vCube, i ) Vec_WecForEachLevel( &p->vCubeLits, vCube, i )
{ {
Value = Pla_CubeHashValue(vCube); Value = Pla_CubeHashValue(vCube);
Vec_IntPush( &p->vHashes, Value ); Vec_IntPush( &p->vHashes, Value );
Tab_ManHashInsert( pTab, Value, i ); Tab_ManHashInsert( pTab, Value, i, PLA_LIT_UNUSED );
} }
} }
int Pla_ManHashDistance1( Pla_Man_t * p ) int Pla_ManHashDistance1( Pla_Man_t * p )
...@@ -174,11 +182,11 @@ int Pla_ManHashDistance1( Pla_Man_t * p ) ...@@ -174,11 +182,11 @@ int Pla_ManHashDistance1( Pla_Man_t * p )
Vec_Int_t * vCubeCopy = Vec_IntAlloc( p->nIns ); Vec_Int_t * vCubeCopy = Vec_IntAlloc( p->nIns );
int nBits = Abc_Base2Log( Pla_ManCubeNum(p) ) + 2; int nBits = Abc_Base2Log( Pla_ManCubeNum(p) ) + 2;
int i, k, Lit, Value, ValueCopy, Count = 0; int i, k, Lit, Value, ValueCopy, Count = 0;
assert( nBits <= 24 ); assert( nBits <= 26 );
pTab = Tab_ManAlloc( nBits, p ); pTab = Tab_ManAlloc( nBits, p );
Pla_ManConvertFromBits( p ); Pla_ManConvertFromBits( p );
Pla_ManHashCubes( p, pTab ); Pla_ManHashCubes( p, pTab );
Vec_WecForEachLevel( &p->vLits, vCube, i ) Vec_WecForEachLevel( &p->vCubeLits, vCube, i )
{ {
Vec_IntClear( vCubeCopy ); Vec_IntClear( vCubeCopy );
Vec_IntAppend( vCubeCopy, vCube ); Vec_IntAppend( vCubeCopy, vCube );
...@@ -210,6 +218,126 @@ int Pla_ManHashDist1NumTest( Pla_Man_t * p ) ...@@ -210,6 +218,126 @@ int Pla_ManHashDist1NumTest( Pla_Man_t * p )
return 1; return 1;
} }
/**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Pla_PrintCube( Vec_Int_t * vLits, int nVars, int iVar )
{
int v, Lit;
Vec_Str_t * vStr = Vec_StrStart( nVars + 1 );
Vec_StrFill( vStr, nVars, '-' );
Vec_IntForEachEntry( vLits, Lit, v )
Vec_StrWriteEntry( vStr, Abc_Lit2Var(Lit), (char)(Abc_LitIsCompl(Lit) ? '0' : '1') );
fprintf( stdout, "%s %d\n", Vec_StrArray(vStr), iVar );
Vec_StrFree( vStr );
}
void Pla_ManHashCubes2( Pla_Man_t * p, Tab_Man_t * pTab )
{
Vec_Int_t * vCube;
int i, v, Lit, Value;
Vec_WecForEachLevel( &p->vCubeLits, vCube, i )
{
Value = Pla_CubeHashValue(vCube);
Vec_IntForEachEntry( vCube, Lit, v )
{
Value -= Pla_HashValue(Lit);
Tab_ManHashInsert( pTab, Value, i, v );
Value += Pla_HashValue(Lit);
}
}
}
void Vec_IntCopySkip( Vec_Int_t * vCube, int iVar, Vec_Int_t * vRes )
{
int i;
Vec_IntClear( vRes );
for ( i = 0; i < Vec_IntSize(vCube); i++ )
if ( i != iVar )
Vec_IntPush( vRes, Vec_IntEntry(vCube, i) );
}
Vec_Int_t * Pla_ManComputeDistance1Int( Pla_Man_t * p )
{
Tab_Man_t * pTab;
Vec_Int_t * vCube1, * vCube2;
Vec_Int_t * vTemp1 = Vec_IntAlloc( 100 );
Vec_Int_t * vTemp2 = Vec_IntAlloc( 100 );
Vec_Int_t * vPairs = Vec_IntAlloc( 1000 );
Vec_Int_t * vCounts = Vec_IntStart( Vec_WecSize(&p->vCubeLits) );
Vec_Int_t * vEntries = Vec_IntAlloc( p->nIns );
int nBits = Abc_Base2Log( Vec_WecSizeSize(&p->vCubeLits) ) + 2;
int v, i, k, Count = 0;
int iCube1, iCube2, iVar1, iVar2;
assert( nBits <= 26 );
pTab = Tab_ManAlloc( nBits, p );
//Pla_ManConvertFromBits( p );
Pla_ManHashCubes2( p, pTab );
// iterate through the hash bins
for ( v = 0; v <= pTab->SizeMask; v++ )
{
Tab_ManHashCollect( pTab, v, vEntries );
for ( i = 0; i < Vec_IntSize(vEntries)/2; i++ )
for ( k = i+1; k < Vec_IntSize(vEntries)/2; k++ )
{
iCube1 = Vec_IntEntry(vEntries, 2*i);
iCube2 = Vec_IntEntry(vEntries, 2*k);
iVar1 = Vec_IntEntry(vEntries, 2*i+1);
iVar2 = Vec_IntEntry(vEntries, 2*k+1);
vCube1 = Vec_WecEntry(&p->vCubeLits, iCube1);
vCube2 = Vec_WecEntry(&p->vCubeLits, iCube2);
/*
Pla_PrintCube( vCube1, p->nIns, iVar1 );
Pla_PrintCube( vCube2, p->nIns, iVar2 );
printf( "\n" );
*/
if ( Vec_IntSize(vCube1) != Vec_IntSize(vCube2) )
continue;
Vec_IntCopySkip( vCube1, iVar1, vTemp1 );
Vec_IntCopySkip( vCube2, iVar2, vTemp2 );
if ( !Vec_IntEqual( vTemp1, vTemp2 ) )
continue;
printf( "%d %d ", iCube1, iCube2 );
Vec_IntPushTwo( vPairs, iCube1, iVar1 );
Vec_IntPushTwo( vPairs, iCube2, iVar2 );
Vec_IntAddToEntry( vCounts, iCube1, 1 );
Vec_IntAddToEntry( vCounts, iCube2, 1 );
}
}
Vec_IntPrint( vCounts );
Vec_IntFree( vCounts );
Vec_IntFree( vTemp1 );
Vec_IntFree( vTemp2 );
Vec_IntFree( vEntries );
Tab_ManFree( pTab );
return vPairs;
}
Vec_Int_t * Pla_ManComputeDistance1( Pla_Man_t * p )
{
abctime clk = Abc_Clock();
Vec_Int_t * vPairs = Pla_ManComputeDistance1Int( p );
printf( "Found %d pairs among %d cubes using cube hashing. ", Vec_IntSize(vPairs)/4, Pla_ManCubeNum(p) );
Abc_PrintTime( 1, "Time", Abc_Clock() - clk );
return vPairs;
}
void Pla_ManComputeDist1Test( Pla_Man_t * p )
{
Vec_Int_t * vPairs;
Pla_ManConvertFromBits( p );
vPairs = Pla_ManComputeDistance1( p );
Vec_IntFree( vPairs );
}
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////
/// END OF FILE /// /// END OF FILE ///
//////////////////////////////////////////////////////////////////////// ////////////////////////////////////////////////////////////////////////
......
src/base/pla/plaMan.c
...@@ -41,19 +41,28 @@ ABC_NAMESPACE_IMPL_START ...@@ -41,19 +41,28 @@ ABC_NAMESPACE_IMPL_START
SeeAlso [] SeeAlso []
***********************************************************************/ ***********************************************************************/
Vec_Int_t * Pla_GenPrimes( int nVars ) Vec_Bit_t * Pla_ManPrimesTable( int nVars )
{ {
int i, n, nBits = ( 1 << nVars ); int i, n, nBits = 1 << nVars;
Vec_Bit_t * vMap = Vec_BitStart( nBits ); Vec_Bit_t * vMap = Vec_BitStartFull( Abc_MaxInt(64, nBits) );
Vec_Int_t * vPrimes = Vec_IntAlloc( 1000 ); for ( i = nBits; i < 64; i++ )
Vec_BitWriteEntry(vMap, 0, 1); Vec_BitWriteEntry( vMap, i, 0 );
Vec_BitWriteEntry(vMap, 1, 1); Vec_BitShrink( vMap, nBits );
Vec_BitWriteEntry( vMap, 0, 0 );
Vec_BitWriteEntry( vMap, 1, 0 );
for ( n = 2; n < nBits; n++ ) for ( n = 2; n < nBits; n++ )
if ( !Vec_BitEntry(vMap, n) ) if ( Vec_BitEntry(vMap, n) )
for ( i = 2*n; i < nBits; i += n ) for ( i = 2*n; i < nBits; i += n )
Vec_BitWriteEntry(vMap, i, 1); Vec_BitWriteEntry( vMap, i, 0 );
return vMap;
}
Vec_Int_t * Pla_GenPrimes( int nVars )
{
int n, nBits = ( 1 << nVars );
Vec_Int_t * vPrimes = Vec_IntAlloc( 1000 );
Vec_Bit_t * vMap = Pla_ManPrimesTable( nVars );
for ( n = 2; n < nBits; n++ ) for ( n = 2; n < nBits; n++ )
if ( !Vec_BitEntry(vMap, n) ) if ( Vec_BitEntry(vMap, n) )
Vec_IntPush( vPrimes, n ); Vec_IntPush( vPrimes, n );
printf( "Primes up to 2^%d = %d\n", nVars, Vec_IntSize(vPrimes) ); printf( "Primes up to 2^%d = %d\n", nVars, Vec_IntSize(vPrimes) );
// Abc_GenCountHits1( vMap, vPrimes, nVars ); // Abc_GenCountHits1( vMap, vPrimes, nVars );
...@@ -75,7 +84,7 @@ Pla_Man_t * Pla_GenFromMinterms( char * pName, Vec_Int_t * vMints, int nVars ) ...@@ -75,7 +84,7 @@ Pla_Man_t * Pla_GenFromMinterms( char * pName, Vec_Int_t * vMints, int nVars )
Pla_CubeSetLit( pCube, 0, PLA_LIT_ONE ); Pla_CubeSetLit( pCube, 0, PLA_LIT_ONE );
return p; return p;
} }
Pla_Man_t * Pla_ManPrimeDetector( int nVars ) Pla_Man_t * Pla_ManPrimesDetector( int nVars )
{ {
char pName[1000]; char pName[1000];
Pla_Man_t * p; Pla_Man_t * p;
...@@ -117,10 +126,13 @@ Vec_Bit_t * Pla_GenRandom( int nVars, int nNums, int fNonZero ) ...@@ -117,10 +126,13 @@ Vec_Bit_t * Pla_GenRandom( int nVars, int nNums, int fNonZero )
} }
Pla_Man_t * Pla_ManGenerate( int nInputs, int nOutputs, int nCubes, int fVerbose ) Pla_Man_t * Pla_ManGenerate( int nInputs, int nOutputs, int nCubes, int fVerbose )
{ {
Pla_Man_t * p;
Vec_Bit_t * vBits; Vec_Bit_t * vBits;
int i, k, Count; int i, k, Count;
word * pCube; word * pCube;
Pla_Man_t * p = Pla_ManAlloc( "rand", nInputs, nOutputs, nCubes ); char Buffer[1000];
sprintf( Buffer, "%s_%d_%d_%d", "rand", nInputs, nOutputs, nCubes );
p = Pla_ManAlloc( Buffer, nInputs, nOutputs, nCubes );
// generate nCube random input minterms // generate nCube random input minterms
vBits = Pla_GenRandom( nInputs, nCubes, 0 ); vBits = Pla_GenRandom( nInputs, nCubes, 0 );
for ( i = Count = 0; i < Vec_BitSize(vBits); i++ ) for ( i = Count = 0; i < Vec_BitSize(vBits); i++ )
...@@ -167,26 +179,40 @@ Pla_Man_t * Pla_ManGenerate( int nInputs, int nOutputs, int nCubes, int fVerbose ...@@ -167,26 +179,40 @@ Pla_Man_t * Pla_ManGenerate( int nInputs, int nOutputs, int nCubes, int fVerbose
***********************************************************************/ ***********************************************************************/
void Pla_ManConvertFromBits( Pla_Man_t * p ) void Pla_ManConvertFromBits( Pla_Man_t * p )
{ {
word * pCube; int i, k, Lit; Vec_Int_t * vCube;
Vec_WecClear( &p->vLits ); word * pCube; int i, k, Lit, Count;
Vec_WecClear( &p->vCubeLits );
Vec_WecClear( &p->vOccurs ); Vec_WecClear( &p->vOccurs );
Vec_WecInit( &p->vLits, Pla_ManCubeNum(p) ); Vec_WecInit( &p->vCubeLits, Pla_ManCubeNum(p) );
Vec_WecInit( &p->vOccurs, 2*Pla_ManInNum(p) ); Vec_WecInit( &p->vOccurs, 2*Pla_ManInNum(p) );
Pla_ForEachCubeIn( p, pCube, i ) Pla_ForEachCubeIn( p, pCube, i )
{
vCube = Vec_WecEntry( &p->vCubeLits, i );
Count = 0;
Pla_CubeForEachLitIn( p, pCube, Lit, k )
if ( Lit != PLA_LIT_DASH )
Count++;
Vec_IntGrow( vCube, Count );
Count = 0;
Pla_CubeForEachLitIn( p, pCube, Lit, k ) Pla_CubeForEachLitIn( p, pCube, Lit, k )
if ( Lit != PLA_LIT_DASH ) if ( Lit != PLA_LIT_DASH )
{ {
Lit = Abc_Var2Lit( k, Lit == PLA_LIT_ZERO ); Lit = Abc_Var2Lit( k, Lit == PLA_LIT_ZERO );
Vec_WecPush( &p->vLits, i, Lit ); Vec_WecPush( &p->vCubeLits, i, Lit );
// Vec_WecPush( &p->vOccurs, Lit, Pla_CubeHandle(i, Count++) );
Vec_WecPush( &p->vOccurs, Lit, i ); Vec_WecPush( &p->vOccurs, Lit, i );
} }
assert( Vec_IntSize(vCube) == Vec_IntCap(vCube) );
}
} }
void Pla_ManConvertToBits( Pla_Man_t * p ) void Pla_ManConvertToBits( Pla_Man_t * p )
{ {
Vec_Int_t * vCube; int i, k, Lit; Vec_Int_t * vCube; int i, k, Lit;
Vec_IntFillNatural( &p->vCubes, Vec_WecSize(&p->vLits) ); Vec_IntFillNatural( &p->vCubes, Vec_WecSize(&p->vCubeLits) );
Vec_WrdFill( &p->vInBits, Pla_ManCubeNum(p) * p->nInWords, 0 ); Vec_WrdFill( &p->vInBits, Pla_ManCubeNum(p) * p->nInWords, 0 );
Vec_WecForEachLevel( &p->vLits, vCube, i ) Vec_WecForEachLevel( &p->vCubeLits, vCube, i )
Vec_IntForEachEntry( vCube, Lit, k ) Vec_IntForEachEntry( vCube, Lit, k )
Pla_CubeSetLit( Pla_CubeIn(p, i), Abc_Lit2Var(Lit), Abc_LitIsCompl(Lit) ? PLA_LIT_ZERO : PLA_LIT_ONE ); Pla_CubeSetLit( Pla_CubeIn(p, i), Abc_Lit2Var(Lit), Abc_LitIsCompl(Lit) ? PLA_LIT_ZERO : PLA_LIT_ONE );
} }
......
src/base/pla/plaSimple.c 0 → 100644
/**CFile****************************************************************
FileName [plaSimple.c]
SystemName [ABC: Logic synthesis and verification system.]
PackageName [SOP manager.]
Synopsis [Scalable SOP transformations.]
Author [Alan Mishchenko]
Affiliation [UC Berkeley]
Date [Ver. 1.0. Started - March 18, 2015.]
Revision [$Id: plaSimple.c,v 1.00 2014/09/12 00:00:00 alanmi Exp $]
***********************************************************************/
#include "pla.h"
ABC_NAMESPACE_IMPL_START
////////////////////////////////////////////////////////////////////////
/// DECLARATIONS ///
////////////////////////////////////////////////////////////////////////
////////////////////////////////////////////////////////////////////////
/// FUNCTION DEFINITIONS ///
////////////////////////////////////////////////////////////////////////
/**Function*************************************************************
Synopsis [Dump PLA manager into a BLIF file.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
void Pla_ManDumpPla( Pla_Man_t * p, char * pFileName )
{
// find the number of original variables
int nVarsInit = Pla_ManDivNum(p) ? Vec_IntCountZero(&p->vDivs) : Pla_ManInNum(p);
FILE * pFile = fopen( pFileName, "wb" );
if ( pFile == NULL )
printf( "Cannot open file \"%s\" for writing.\n", pFileName );
else
{
char * pLits = "-01?";
Vec_Str_t * vStr;
Vec_Int_t * vCube;
int i, k, Lit;
// comment
fprintf( pFile, "# PLA file written via PLA package in ABC on " );
fprintf( pFile, "%s", Extra_TimeStamp() );
fprintf( pFile, "\n\n" );
// header
fprintf( pFile, ".i %d\n", Pla_ManInNum(p) );
fprintf( pFile, ".o %d\n", 1 );
fprintf( pFile, ".p %d\n", Vec_WecSize(&p->vCubeLits) );
// SOP
vStr = Vec_StrStart( Pla_ManInNum(p) + 1 );
Vec_WecForEachLevel( &p->vCubeLits, vCube, i )
{
if ( !Vec_IntSize(vCube) )
continue;
for ( k = 0; k < Pla_ManInNum(p); k++ )
Vec_StrWriteEntry( vStr, k, '-' );
Vec_IntForEachEntry( vCube, Lit, k )
Vec_StrWriteEntry( vStr, Abc_Lit2Var(Lit), (char)(Abc_LitIsCompl(Lit) ? '0' : '1') );
fprintf( pFile, "%s 1\n", Vec_StrArray(vStr) );
}
Vec_StrFree( vStr );
fprintf( pFile, ".e\n\n" );
fclose( pFile );
printf( "Written file \"%s\".\n", pFileName );
}
}
void Pla_ManDumpBlif( Pla_Man_t * p, char * pFileName )
{
// find the number of original variables
int nVarsInit = Pla_ManDivNum(p) ? Vec_IntCountZero(&p->vDivs) : Pla_ManInNum(p);
FILE * pFile = fopen( pFileName, "wb" );
if ( pFile == NULL )
printf( "Cannot open file \"%s\" for writing.\n", pFileName );
else
{
char * pLits = "-01?";
Vec_Str_t * vStr;
Vec_Int_t * vCube;
int i, k, Lit, Div;
// comment
fprintf( pFile, "# BLIF file written via PLA package in ABC on " );
fprintf( pFile, "%s", Extra_TimeStamp() );
fprintf( pFile, "\n\n" );
// header
fprintf( pFile, ".model %s\n", Pla_ManName(p) );
fprintf( pFile, ".inputs" );
for ( i = 0; i < nVarsInit; i++ )
fprintf( pFile, " i%d", i );
fprintf( pFile, "\n" );
fprintf( pFile, ".outputs o" );
fprintf( pFile, "\n" );
// SOP
fprintf( pFile, ".names" );
for ( i = 0; i < Pla_ManInNum(p); i++ )
fprintf( pFile, " i%d", i );
fprintf( pFile, " o\n" );
vStr = Vec_StrStart( Pla_ManInNum(p) + 1 );
Vec_WecForEachLevel( &p->vCubeLits, vCube, i )
{
for ( k = 0; k < Pla_ManInNum(p); k++ )
Vec_StrWriteEntry( vStr, k, '-' );
Vec_IntForEachEntry( vCube, Lit, k )
Vec_StrWriteEntry( vStr, Abc_Lit2Var(Lit), (char)(Abc_LitIsCompl(Lit) ? '0' : '1') );
fprintf( pFile, "%s 1\n", Vec_StrArray(vStr) );
}
Vec_StrFree( vStr );
// divisors
Vec_IntForEachEntryStart( &p->vDivs, Div, i, nVarsInit )
{
int pLits[3] = { (Div >> 2) & 0x3FF, (Div >> 12) & 0x3FF, (Div >> 22) & 0x3FF };
fprintf( pFile, ".names" );
fprintf( pFile, " i%d", Abc_Lit2Var(pLits[0]) );
fprintf( pFile, " i%d", Abc_Lit2Var(pLits[1]) );
if ( (Div & 3) == 3 ) // MUX
fprintf( pFile, " i%d", Abc_Lit2Var(pLits[2]) );
fprintf( pFile, " i%d\n", i );
if ( (Div & 3) == 1 ) // AND
fprintf( pFile, "%d%d 1\n", !Abc_LitIsCompl(pLits[0]), !Abc_LitIsCompl(pLits[1]) );
else if ( (Div & 3) == 2 ) // XOR
{
assert( !Abc_LitIsCompl(pLits[0]) );
assert( !Abc_LitIsCompl(pLits[1]) );
fprintf( pFile, "10 1\n01 1\n" );
}
else if ( (Div & 3) == 3 ) // MUX
{
assert( !Abc_LitIsCompl(pLits[1]) );
assert( !Abc_LitIsCompl(pLits[2]) );
fprintf( pFile, "%d-0 1\n-11 1\n", !Abc_LitIsCompl(pLits[0]) );
}
else assert( 0 );
}
fprintf( pFile, ".end\n\n" );
fclose( pFile );
printf( "Written file \"%s\".\n", pFileName );
}
}
/**Function*************************************************************
Synopsis [Transforms truth table into an SOP manager.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
int Pla_ManExpendDirNum( word * pOn, int nBits, int iMint, int * pVars )
{
int v, nVars = 0;
for ( v = 0; v < nBits; v++ )
if ( Pla_TtGetBit(pOn, iMint ^ (1 << v)) )
pVars[nVars++] = v;
return nVars;
}
void Pla_PrintBinary( word * pT, int nBits )
{
int v;
for ( v = 0; v < nBits; v++ )
printf( "%d", Pla_TtGetBit(pT, v) );
printf( "\n" );
}
Vec_Wrd_t * Pla_ManFxMinimize( word * pOn, int nVars )
{
int i, v, iMint, iVar, nMints = (1 << nVars);
int nWords = Abc_Bit6WordNum( nMints );
Vec_Wrd_t * vCubes = Vec_WrdAlloc( 1000 );
word * pDc = ABC_CALLOC( word, nWords );
int Count[32] = {0};
int Cubes[32] = {0};
Vec_Int_t * vStore = Vec_IntAlloc( 1000 );
// count the number of expansion directions
for ( i = 0; i < nMints; i++ )
if ( Pla_TtGetBit(pOn, i) && !Pla_TtGetBit(pDc, i) )
{
int pDirs[32], nDirs = Pla_ManExpendDirNum(pOn, nVars, i, pDirs);
Count[nDirs]++;
if ( nDirs == 0 )
{
Pla_TtSetBit(pDc, i);
Cubes[0]++;
// save
Vec_IntPushTwo( vStore, i, -1 );
continue;
}
if ( nDirs == 1 )
{
//Pla_PrintBinary( (word *)&i, nVars );
//printf( " %d \n", pDirs[0] );
Pla_TtSetBit(pDc, i);
Pla_TtSetBit(pDc, i ^ (1 << pDirs[0]));
Cubes[1]++;
// save
Vec_IntPushTwo( vStore, i, pDirs[0] );
continue;
}
if ( nDirs == 2 && Pla_TtGetBit(pOn, i ^ (1 << pDirs[0]) ^ (1 << pDirs[1])) )
{
assert( 0 );
Pla_TtSetBit(pDc, i);
Pla_TtSetBit(pDc, i ^ (1 << pDirs[0]));
Pla_TtSetBit(pDc, i ^ (1 << pDirs[1]));
Pla_TtSetBit(pDc, i ^ (1 << pDirs[0]) ^ (1 << pDirs[1]));
Cubes[2]++;
continue;
}
}
// go through the remaining cubes
for ( i = 0; i < nMints; i++ )
if ( Pla_TtGetBit(pOn, i) && !Pla_TtGetBit(pDc, i) )
{
int pDirs[32], nDirs = Pla_ManExpendDirNum(pOn, nVars, i, pDirs);
// find direction, which is not taken
for ( v = 0; v < nDirs; v++ )
if ( Pla_TtGetBit(pOn, i ^ (1 << pDirs[v])) && !Pla_TtGetBit(pDc, i ^ (1 << pDirs[v])) )
break;
// if there is no open directions, use any one
if ( v == nDirs )
v = 0;
// mark this one
Pla_TtSetBit(pDc, i);
Pla_TtSetBit(pDc, i ^ (1 << pDirs[v]));
Cubes[10]++;
// save
Vec_IntPushTwo( vStore, i, pDirs[v] );
continue;
}
printf( "\n" );
printf( "Truth = %d. ", Pla_TtCountOnes(pOn, nWords) );
printf( "Cover = %d. ", Pla_TtCountOnes(pDc, nWords) );
printf( "\n" );
printf( "Count: " );
for ( i = 0; i < 16; i++ )
if ( Count[i] )
printf( "%d=%d ", i, Count[i] );
printf( "\n" );
printf( "Cubes: " );
for ( i = 0; i < 16; i++ )
if ( Cubes[i] )
printf( "%d=%d ", i, Cubes[i] );
printf( "\n" );
/*
// extract cubes one at a time
for ( i = 0; i < nMints; i++ )
if ( Pla_TtGetBit(pOn, i) )
{
word Cube = 0;
for ( v = 0; v < nVars; v++ )
if ( (i >> v) & 1 )
Pla_CubeSetLit( &Cube, v, PLA_LIT_ONE );
else
Pla_CubeSetLit( &Cube, v, PLA_LIT_ZERO );
Vec_WrdPush( vCubes, Cube );
}
*/
Vec_IntForEachEntryDouble( vStore, iMint, iVar, i )
{
word Cube = 0;
for ( v = 0; v < nVars; v++ )
{
if ( v == iVar )
continue;
if ( (iMint >> v) & 1 )
Pla_CubeSetLit( &Cube, v, PLA_LIT_ONE );
else
Pla_CubeSetLit( &Cube, v, PLA_LIT_ZERO );
}
Vec_WrdPush( vCubes, Cube );
}
Vec_IntFree( vStore );
// collect the minterms
ABC_FREE( pDc );
return vCubes;
}
Pla_Man_t * Pla_ManFxPrepare( int nVars )
{
Pla_Man_t * p; char Buffer[1000];
Vec_Bit_t * vFunc = Pla_ManPrimesTable( nVars );
Vec_Wrd_t * vSop = Pla_ManFxMinimize( (word *)Vec_BitArray(vFunc), nVars );
word Cube, * pCube = &Cube; int i, k, Lit;
sprintf( Buffer, "primes%02d", nVars );
p = Pla_ManAlloc( Buffer, nVars, 1, Vec_WrdSize(vSop) );
Vec_WecInit( &p->vCubeLits, Pla_ManCubeNum(p) );
Vec_WecInit( &p->vOccurs, 2*Pla_ManInNum(p) );
Vec_WrdForEachEntry( vSop, Cube, i )
Pla_CubeForEachLit( nVars, pCube, Lit, k )
if ( Lit != PLA_LIT_DASH )
{
Lit = Abc_Var2Lit( k, Lit == PLA_LIT_ZERO );
Vec_WecPush( &p->vCubeLits, i, Lit );
Vec_WecPush( &p->vOccurs, Lit, i );
}
Vec_BitFree( vFunc );
Vec_WrdFree( vSop );
return p;
}
int Pla_ManFxPerformSimple( int nVars )
{
char Buffer[100];
Pla_Man_t * p = Pla_ManFxPrepare( nVars );
sprintf( Buffer, "primesmin%02d.pla", nVars );
Pla_ManDumpPla( p, Buffer );
Pla_ManFree( p );
return 1;
}
////////////////////////////////////////////////////////////////////////
/// END OF FILE ///
////////////////////////////////////////////////////////////////////////
ABC_NAMESPACE_IMPL_END
src/base/pla/plaWrite.c
...@@ -49,7 +49,7 @@ Vec_Str_t * Pla_WritePlaInt( Pla_Man_t * p ) ...@@ -49,7 +49,7 @@ Vec_Str_t * Pla_WritePlaInt( Pla_Man_t * p )
int i, k, Lit; int i, k, Lit;
// write comments // write comments
Vec_StrPrintStr( vOut, "# SOP \"" ); Vec_StrPrintStr( vOut, "# SOP \"" );
Vec_StrPrintStr( vOut, p->pName ); Vec_StrPrintStr( vOut, Pla_ManName(p) );
Vec_StrPrintStr( vOut, "\" written via PLA package in ABC on " ); Vec_StrPrintStr( vOut, "\" written via PLA package in ABC on " );
Vec_StrPrintStr( vOut, Extra_TimeStamp() ); Vec_StrPrintStr( vOut, Extra_TimeStamp() );
Vec_StrPrintStr( vOut, "\n\n" ); Vec_StrPrintStr( vOut, "\n\n" );
......
src/misc/vec/vecBit.h
...@@ -124,7 +124,7 @@ static inline Vec_Bit_t * Vec_BitStartFull( int nSize ) ...@@ -124,7 +124,7 @@ static inline Vec_Bit_t * Vec_BitStartFull( int nSize )
{ {
Vec_Bit_t * p; Vec_Bit_t * p;
nSize = (nSize >> 5) + ((nSize & 31) > 0); nSize = (nSize >> 5) + ((nSize & 31) > 0);
p = Vec_BitAlloc( nSize ); p = Vec_BitAlloc( nSize * 32 );
p->nSize = nSize * 32; p->nSize = nSize * 32;
memset( p->pArray, 0xff, sizeof(int) * nSize ); memset( p->pArray, 0xff, sizeof(int) * nSize );
return p; return p;
......
src/misc/vec/vecFlt.h
...@@ -225,6 +225,18 @@ static inline Vec_Flt_t * Vec_FltDupArray( Vec_Flt_t * pVec ) ...@@ -225,6 +225,18 @@ static inline Vec_Flt_t * Vec_FltDupArray( Vec_Flt_t * pVec )
SeeAlso [] SeeAlso []
***********************************************************************/ ***********************************************************************/
static inline void Vec_FltZero( Vec_Flt_t * p )
{
p->pArray = NULL;
p->nSize = 0;
p->nCap = 0;
}
static inline void Vec_FltErase( Vec_Flt_t * p )
{
ABC_FREE( p->pArray );
p->nSize = 0;
p->nCap = 0;
}
static inline void Vec_FltFree( Vec_Flt_t * p ) static inline void Vec_FltFree( Vec_Flt_t * p )
{ {
ABC_FREE( p->pArray ); ABC_FREE( p->pArray );
......
src/misc/vec/vecInt.h
...@@ -1338,6 +1338,16 @@ static inline void Vec_IntSort( Vec_Int_t * p, int fReverse ) ...@@ -1338,6 +1338,16 @@ static inline void Vec_IntSort( Vec_Int_t * p, int fReverse )
qsort( (void *)p->pArray, p->nSize, sizeof(int), qsort( (void *)p->pArray, p->nSize, sizeof(int),
(int (*)(const void *, const void *)) Vec_IntSortCompare1 ); (int (*)(const void *, const void *)) Vec_IntSortCompare1 );
} }
static inline void Vec_IntSortPairs( Vec_Int_t * p, int fReverse )
{
assert( Vec_IntSize(p) % 2 == 0 );
if ( fReverse )
qsort( (void *)p->pArray, p->nSize/2, 2*sizeof(int),
(int (*)(const void *, const void *)) Vec_IntSortCompare2 );
else
qsort( (void *)p->pArray, p->nSize/2, 2*sizeof(int),
(int (*)(const void *, const void *)) Vec_IntSortCompare1 );
}
/**Function************************************************************* /**Function*************************************************************
...@@ -1394,6 +1404,36 @@ static inline int Vec_IntCountUnique( Vec_Int_t * p ) ...@@ -1394,6 +1404,36 @@ static inline int Vec_IntCountUnique( Vec_Int_t * p )
/**Function************************************************************* /**Function*************************************************************
Synopsis [Counts the number of unique pairs.]
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Vec_IntUniqifyPairs( Vec_Int_t * p )
{
int i, k, RetValue;
assert( p->nSize % 2 == 0 );
if ( p->nSize < 4 )
return 0;
Vec_IntSortPairs( p, 0 );
for ( i = k = 1; i < p->nSize/2; i++ )
if ( p->pArray[2*i] != p->pArray[2*(i-1)] || p->pArray[2*i+1] != p->pArray[2*(i-1)+1] )
{
p->pArray[2*k] = p->pArray[2*i];
p->pArray[2*k+1] = p->pArray[2*i+1];
k++;
}
RetValue = p->nSize/2 - k;
p->nSize = 2*k;
return RetValue;
}
/**Function*************************************************************
Synopsis [Counts the number of unique entries.] Synopsis [Counts the number of unique entries.]
Description [] Description []
...@@ -1891,6 +1931,13 @@ static inline void Vec_IntAppend( Vec_Int_t * vVec1, Vec_Int_t * vVec2 ) ...@@ -1891,6 +1931,13 @@ static inline void Vec_IntAppend( Vec_Int_t * vVec1, Vec_Int_t * vVec2 )
Vec_IntForEachEntry( vVec2, Entry, i ) Vec_IntForEachEntry( vVec2, Entry, i )
Vec_IntPush( vVec1, Entry ); Vec_IntPush( vVec1, Entry );
} }
static inline void Vec_IntAppendSkip( Vec_Int_t * vVec1, Vec_Int_t * vVec2, int iVar )
{
int Entry, i;
Vec_IntForEachEntry( vVec2, Entry, i )
if ( i != iVar )
Vec_IntPush( vVec1, Entry );
}
ABC_NAMESPACE_HEADER_END ABC_NAMESPACE_HEADER_END
......
src/misc/vec/vecWrd.h
...@@ -961,6 +961,25 @@ static inline word Vec_WrdSum( Vec_Wrd_t * p ) ...@@ -961,6 +961,25 @@ static inline word Vec_WrdSum( Vec_Wrd_t * p )
/**Function************************************************************* /**Function*************************************************************
Synopsis []
Description []
SideEffects []
SeeAlso []
***********************************************************************/
static inline int Vec_WrdCountZero( Vec_Wrd_t * p )
{
int i, Counter = 0;
for ( i = 0; i < p->nSize; i++ )
Counter += (p->pArray[i] == 0);
return Counter;
}
/**Function*************************************************************
Synopsis [Checks if two vectors are equal.] Synopsis [Checks if two vectors are equal.]
Description [] Description []
......
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