mirror of https://github.com/YosysHQ/abc.git
thread parallelism
This commit is contained in:
Yukio Miyasaka
parent
3af039d7c3
commit
16894c56ee
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@ -9,6 +9,17 @@
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#include <opt/sfm/sfm.h>
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#include <opt/fxu/fxu.h>
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#ifdef ABC_USE_PTHREADS
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#ifdef _WIN32
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#include "../lib/pthread.h"
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#else
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#include <pthread.h>
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#include <unistd.h>
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#endif
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#endif
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ABC_NAMESPACE_IMPL_START
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extern Abc_Ntk_t * Abc_NtkFromAigPhase( Aig_Man_t * pMan );
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@ -16,7 +27,6 @@ extern Abc_Ntk_t * Abc_NtkIf( Abc_Ntk_t * pNtk, If_Par_t * pPars );
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extern int Abc_NtkPerformMfs( Abc_Ntk_t * pNtk, Sfm_Par_t * pPars );
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extern Aig_Man_t * Abc_NtkToDar( Abc_Ntk_t * pNtk, int fExors, int fRegisters );
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extern int Abc_NtkFxPerform( Abc_Ntk_t * pNtk, int nNewNodesMax, int nLitCountMax, int fCanonDivs, int fVerbose, int fVeryVerbose );
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extern Abc_Ntk_t * Abc_NtkDRewrite( Abc_Ntk_t * pNtk, Dar_RwrPar_t * pPars );
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Abc_Ntk_t * Gia_ManTranStochPut( Gia_Man_t * pGia ) {
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Abc_Ntk_t * pNtk;
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@ -50,15 +60,23 @@ void Gia_ManTranStochFx( Abc_Ntk_t * pNtk ) {
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Abc_NtkFxPerform( pNtk, p->nNodesExt, p->LitCountMax, p->fCanonDivs, p->fVerbose, p->fVeryVerbose );
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Abc_NtkFxuFreeInfo( p );
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}
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Abc_Ntk_t * Gia_ManTranStochDrw( Abc_Ntk_t * pNtk ) {
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Dar_RwrPar_t Pars, * pPars = &Pars;
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Dar_ManDefaultRwrParams( pPars );
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pPars->nMinSaved = 0;
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Gia_Man_t * Gia_ManTranStochRefactor( Gia_Man_t * pGia ) {
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Gia_Man_t * pNew;
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Aig_Man_t * pAig, * pTemp;
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Dar_RefPar_t Pars, * pPars = &Pars;
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Dar_ManDefaultRefParams( pPars );
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pPars->fUseZeros = 1;
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return Abc_NtkDRewrite( pNtk, pPars );
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pAig = Gia_ManToAig( pGia, 0 );
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Dar_ManRefactor( pAig, pPars );
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pAig = Aig_ManDupDfs( pTemp = pAig );
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Aig_ManStop( pTemp );
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pNew = Gia_ManFromAig( pAig );
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Aig_ManStop( pAig );
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return pNew;
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}
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struct Gia_ManTranStochParam {
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Gia_Man_t * pStart;
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int nSeed;
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int nHops;
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int nRestarts;
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@ -66,14 +84,36 @@ struct Gia_ManTranStochParam {
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int fMspf;
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int fMerge;
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int fResetHop;
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int fZeroCostHop;
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int fRefactor;
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int fTruth;
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int fNewLine;
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Gia_Man_t * pExdc;
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int fZeroCostHop;
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int nVerbose;
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#ifdef ABC_USE_PTHREADS
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int nSp;
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int nIte;
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Gia_Man_t * pRes;
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int fWorking;
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pthread_mutex_t * mutex;
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#endif
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};
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typedef struct Gia_ManTranStochParam Gia_ManTranStochParam;
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void Gia_ManTranStochLock( Gia_ManTranStochParam * p ) {
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#ifdef ABC_USE_PTHREADS
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if ( p->fWorking )
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pthread_mutex_lock( p->mutex );
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#endif
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}
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void Gia_ManTranStochUnlock( Gia_ManTranStochParam * p ) {
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#ifdef ABC_USE_PTHREADS
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if ( p->fWorking )
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pthread_mutex_unlock( p->mutex );
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#endif
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}
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Gia_Man_t * Gia_ManTranStochOpt1( Gia_ManTranStochParam * p, Gia_Man_t * pOld ) {
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Gia_Man_t * pGia, * pNew;
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@ -86,10 +126,18 @@ Gia_Man_t * Gia_ManTranStochOpt1( Gia_ManTranStochParam * p, Gia_Man_t * pOld )
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else
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pNew = Gia_ManTransductionBdd( pGia, (p->fMerge? 8: 7), p->fMspf, p->nSeed++, 0, 0, 0, 0, p->pExdc, p->fNewLine, p->nVerbose > 0? p->nVerbose - 1: 0 );
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Gia_ManStop( pGia );
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pGia = pNew;
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pNew = Gia_ManCompress2( pGia, 1, 0 );
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Gia_ManStop( pGia );
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pGia = pNew;
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if ( p->fRefactor ) {
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pNew = Gia_ManTranStochRefactor( pGia );
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Gia_ManStop( pGia );
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pGia = pNew;
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} else {
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Gia_ManTranStochLock( p );
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pNew = Gia_ManCompress2( pGia, 1, 0 );
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Gia_ManTranStochUnlock( p );
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Gia_ManStop( pGia );
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pGia = pNew;
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}
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if ( p->nVerbose )
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printf( "* ite %d : #nodes = %5d\n", i, Gia_ManAndNum( pGia ) );
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i++;
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@ -97,11 +145,11 @@ Gia_Man_t * Gia_ManTranStochOpt1( Gia_ManTranStochParam * p, Gia_Man_t * pOld )
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return pGia;
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}
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Gia_Man_t * Gia_ManTranStochOpt2( Gia_ManTranStochParam * p, Gia_Man_t * pOld ) {
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int i, n = Gia_ManAndNum( pOld );
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Gia_Man_t * Gia_ManTranStochOpt2( Gia_ManTranStochParam * p ) {
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int i, n = Gia_ManAndNum( p->pStart );
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Gia_Man_t * pGia, * pBest, * pNew;
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Abc_Ntk_t * pNtk, * pNtkRes;
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pGia = Gia_ManDup( pOld );
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pGia = Gia_ManDup( p->pStart );
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pBest = Gia_ManDup( pGia );
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for ( i = 0; 1; i++ ) {
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pNew = Gia_ManTranStochOpt1( p, pGia );
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@ -116,23 +164,27 @@ Gia_Man_t * Gia_ManTranStochOpt2( Gia_ManTranStochParam * p, Gia_Man_t * pOld )
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}
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if ( i == p->nHops )
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break;
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pNtk = Gia_ManTranStochPut( pGia );
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Gia_ManStop( pGia );
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if ( p->fZeroCostHop ) {
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pNtkRes = Gia_ManTranStochDrw( pNtk );
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Abc_NtkDelete( pNtk );
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pNtk = pNtkRes;
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pNew = Gia_ManTranStochRefactor( pGia );
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Gia_ManStop( pGia );
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pGia = pNew;
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} else {
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Gia_ManTranStochLock( p );
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pNtk = Gia_ManTranStochPut( pGia );
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Gia_ManTranStochUnlock( p );
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Gia_ManStop( pGia );
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pNtkRes = Gia_ManTranStochIf( pNtk );
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Abc_NtkDelete( pNtk );
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pNtk = pNtkRes;
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Gia_ManTranStochMfs2( pNtk );
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Gia_ManTranStochLock( p );
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pNtkRes = Abc_NtkStrash( pNtk, 0, 1, 0 );
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Gia_ManTranStochUnlock( p );
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Abc_NtkDelete( pNtk );
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pNtk = pNtkRes;
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pGia = Gia_ManTranStochGet( pNtk );
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Abc_NtkDelete( pNtk );
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}
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pGia = Gia_ManTranStochGet( pNtk );
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Abc_NtkDelete( pNtk );
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if ( p->nVerbose )
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printf( "* hop %d : #nodes = %5d\n", i, Gia_ManAndNum( pGia ) );
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}
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@ -140,13 +192,13 @@ Gia_Man_t * Gia_ManTranStochOpt2( Gia_ManTranStochParam * p, Gia_Man_t * pOld )
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return pBest;
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}
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Gia_Man_t * Gia_ManTranStochOpt3( Gia_ManTranStochParam * p, Gia_Man_t * pOld ) {
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int i, n = Gia_ManAndNum( pOld );
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Gia_Man_t * Gia_ManTranStochOpt3( Gia_ManTranStochParam * p ) {
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int i, n = Gia_ManAndNum( p->pStart );
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Gia_Man_t * pBest, * pNew;
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pBest = Gia_ManDup( pOld );
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pBest = Gia_ManDup( p->pStart );
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for ( i = 0; i <= p->nRestarts; i++ ) {
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p->nSeed = 1234 * (i + p->nSeedBase);
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pNew = Gia_ManTranStochOpt2( p, pOld );
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pNew = Gia_ManTranStochOpt2( p );
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if ( p->nRestarts && p->nVerbose )
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printf( "* res %2d : #nodes = %5d\n", i, Gia_ManAndNum( pNew ) );
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if ( n > Gia_ManAndNum( pNew ) ) {
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@ -160,7 +212,28 @@ Gia_Man_t * Gia_ManTranStochOpt3( Gia_ManTranStochParam * p, Gia_Man_t * pOld )
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return pBest;
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}
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Gia_Man_t * Gia_ManTranStoch( Gia_Man_t * pGia, int nRestarts, int nHops, int nSeedBase, int fMspf, int fMerge, int fResetHop, int fZeroCostHop, int fTruth, int fSingle, int fOriginalOnly, int fNewLine, Gia_Man_t * pExdc, int nVerbose ) {
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#ifdef ABC_USE_PTHREADS
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void * Gia_ManTranStochWorkerThread( void * pArg ) {
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Gia_ManTranStochParam * p = (Gia_ManTranStochParam *)pArg;
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volatile int * pPlace = &p->fWorking;
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while ( 1 ) {
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while ( *pPlace == 0 );
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assert( p->fWorking );
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if ( p->pStart == NULL ) {
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pthread_exit( NULL );
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assert( 0 );
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return NULL;
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}
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p->nSeed = 1234 * (p->nIte + p->nSeedBase);
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p->pRes = Gia_ManTranStochOpt2( p );
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p->fWorking = 0;
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}
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assert( 0 );
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return NULL;
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}
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#endif
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Gia_Man_t * Gia_ManTranStoch( Gia_Man_t * pGia, int nRestarts, int nHops, int nSeedBase, int fMspf, int fMerge, int fResetHop, int fZeroCostHop, int fRefactor, int fTruth, int fSingle, int fOriginalOnly, int fNewLine, Gia_Man_t * pExdc, int nThreads, int nVerbose ) {
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int i, j = 0;
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Gia_Man_t * pNew, * pBest, * pStart;
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Abc_Ntk_t * pNtk, * pNtkRes;
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@ -172,10 +245,14 @@ Gia_Man_t * Gia_ManTranStoch( Gia_Man_t * pGia, int nRestarts, int nHops, int nS
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p->fMerge = fMerge;
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p->fResetHop = fResetHop;
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p->fZeroCostHop = fZeroCostHop;
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p->fRefactor = fRefactor;
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p->fTruth = fTruth;
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p->fNewLine = fNewLine;
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p->pExdc = pExdc;
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p->nVerbose = nVerbose;
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#ifdef ABC_USE_PTHREADS
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p->fWorking = 0;
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#endif
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// setup start points
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Vec_Ptr_t * vpStarts = Vec_PtrAlloc( 4 );
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Vec_PtrPush( vpStarts, Gia_ManDup( pGia ) );
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@ -228,21 +305,97 @@ Gia_Man_t * Gia_ManTranStoch( Gia_Man_t * pGia, int nRestarts, int nHops, int nS
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}
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// optimize
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pBest = Gia_ManDup( pGia );
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Vec_PtrForEachEntry( Gia_Man_t *, vpStarts, pStart, i ) {
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if ( p->nVerbose )
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printf( "*begin starting point %d: #nodes = %5d\n", i + j, Gia_ManAndNum( pStart ) );
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pNew = Gia_ManTranStochOpt3( p, pStart );
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if ( p->nVerbose )
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printf( "*end starting point %d: #nodes = %5d\n", i + j, Gia_ManAndNum( pNew ) );
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if ( Gia_ManAndNum( pBest ) > Gia_ManAndNum( pNew ) ) {
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Gia_ManStop( pBest );
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pBest = pNew;
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} else {
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Gia_ManStop( pNew );
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if ( nThreads == 1 ) {
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Vec_PtrForEachEntry( Gia_Man_t *, vpStarts, pStart, i ) {
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if ( p->nVerbose )
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printf( "*begin starting point %d: #nodes = %5d\n", i + j, Gia_ManAndNum( pStart ) );
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p->pStart = pStart;
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pNew = Gia_ManTranStochOpt3( p );
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if ( p->nVerbose )
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printf( "*end starting point %d: #nodes = %5d\n", i + j, Gia_ManAndNum( pNew ) );
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if ( Gia_ManAndNum( pBest ) > Gia_ManAndNum( pNew ) ) {
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Gia_ManStop( pBest );
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pBest = pNew;
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} else {
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Gia_ManStop( pNew );
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}
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Gia_ManStop( pStart );
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}
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Gia_ManStop( pStart );
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} else {
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#ifdef ABC_USE_PTHREADS
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static pthread_mutex_t mutex;
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int k, status, nIte, fAssigned, fWorking;
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Gia_ManTranStochParam ThData[100];
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pthread_t WorkerThread[100];
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p->pRes = NULL;
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p->mutex = &mutex;
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if ( p->nVerbose )
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p->nVerbose--;
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for ( i = 0; i < nThreads; i++ ) {
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ThData[i] = *p;
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status = pthread_create( WorkerThread + i, NULL, Gia_ManTranStochWorkerThread, (void *)(ThData + i) );
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assert( status == 0 );
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}
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Vec_PtrForEachEntry( Gia_Man_t *, vpStarts, pStart, k ) {
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for ( nIte = 0; nIte <= p->nRestarts; nIte++ ) {
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fAssigned = 0;
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while ( !fAssigned ) {
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for ( i = 0; i < nThreads; i++ ) {
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if ( ThData[i].fWorking )
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continue;
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if ( ThData[i].pRes != NULL ) {
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if( nVerbose )
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printf( "*sp %d res %4d : #nodes = %5d\n", ThData[i].nSp, ThData[i].nIte, Gia_ManAndNum( ThData[i].pRes ) );
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if ( Gia_ManAndNum( pBest ) > Gia_ManAndNum( ThData[i].pRes ) ) {
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Gia_ManStop( pBest );
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pBest = ThData[i].pRes;
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} else {
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Gia_ManStop( ThData[i].pRes );
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}
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ThData[i].pRes = NULL;
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}
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ThData[i].nSp = j + k;
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ThData[i].nIte = nIte;
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ThData[i].pStart = pStart;
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ThData[i].fWorking = 1;
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fAssigned = 1;
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break;
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}
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}
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}
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}
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fWorking = 1;
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while ( fWorking ) {
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fWorking = 0;
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for ( i = 0; i < nThreads; i++ ) {
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if( ThData[i].fWorking ) {
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fWorking = 1;
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continue;
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}
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if ( ThData[i].pRes != NULL ) {
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if( nVerbose )
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printf( "*sp %d res %4d : #nodes = %5d\n", ThData[i].nSp, ThData[i].nIte, Gia_ManAndNum( ThData[i].pRes ) );
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if ( Gia_ManAndNum( pBest ) > Gia_ManAndNum( ThData[i].pRes ) ) {
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Gia_ManStop( pBest );
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pBest = ThData[i].pRes;
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} else {
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Gia_ManStop( ThData[i].pRes );
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}
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ThData[i].pRes = NULL;
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}
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}
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}
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for ( i = 0; i < nThreads; i++ ) {
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ThData[i].pStart = NULL;
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ThData[i].fWorking = 1;
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}
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#else
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printf( "ERROR: pthread is off" );
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#endif
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Vec_PtrForEachEntry( Gia_Man_t *, vpStarts, pStart, i )
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Gia_ManStop( pStart );
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}
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if ( p->nVerbose )
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if ( nVerbose )
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printf( "best: %d\n", Gia_ManAndNum( pBest ) );
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Vec_PtrFree( vpStarts );
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return pBest;
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@ -42754,11 +42754,11 @@ usage:
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***********************************************************************/
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int Abc_CommandAbc9TranStoch( Abc_Frame_t * pAbc, int argc, char ** argv )
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{
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extern Gia_Man_t * Gia_ManTranStoch( Gia_Man_t * pGia, int nRestarts, int nHops, int nSeedBase, int fMspf, int fMerge, int fResetHop, int fZeroCostHop, int fTruth, int fSingle, int fOriginalOnly, int fNewLine, Gia_Man_t * pExdc, int nVerbose );
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extern Gia_Man_t * Gia_ManTranStoch( Gia_Man_t * pGia, int nRestarts, int nHops, int nSeedBase, int fMspf, int fMerge, int fResetHop, int fZeroCostHop, int fRefactor, int fTruth, int fSingle, int fOriginalOnly, int fNewLine, Gia_Man_t * pExdc, int nThreads, int nVerbose );
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Gia_Man_t * pTemp, * pExdc = NULL;
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int c, nRestarts = 0, nHops = 10, nSeedBase = 0, fMspf = 1, fMerge = 1, fResetHop = 1, fZeroCostHop = 0, fTruth = 0, fSingle = 0, fOriginalOnly = 0, fNewLine = 0, nVerbose = 1;
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int c, nRestarts = 0, nHops = 10, nSeedBase = 0, fMspf = 1, fMerge = 1, fResetHop = 1, fZeroCostHop = 0, fRefactor = 0, fTruth = 0, fSingle = 0, fOriginalOnly = 0, fNewLine = 0, nThreads = 1, nVerbose = 1;
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Extra_UtilGetoptReset();
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while ( ( c = Extra_UtilGetopt( argc, argv, "NMRVmgrztsonh" ) ) != EOF )
|
||||
while ( ( c = Extra_UtilGetopt( argc, argv, "NMRPVmgrzftsonh" ) ) != EOF )
|
||||
{
|
||||
switch ( c )
|
||||
{
|
||||
|
|
@ -42789,6 +42789,15 @@ int Abc_CommandAbc9TranStoch( Abc_Frame_t * pAbc, int argc, char ** argv )
|
|||
nSeedBase = atoi(argv[globalUtilOptind]);
|
||||
globalUtilOptind++;
|
||||
break;
|
||||
case 'P':
|
||||
if ( globalUtilOptind >= argc )
|
||||
{
|
||||
Abc_Print( -1, "Command line switch \"-P\" should be followed by a positive integer.\n" );
|
||||
goto usage;
|
||||
}
|
||||
nThreads = atoi(argv[globalUtilOptind]);
|
||||
globalUtilOptind++;
|
||||
break;
|
||||
case 'V':
|
||||
if ( globalUtilOptind >= argc )
|
||||
{
|
||||
|
|
@ -42810,6 +42819,9 @@ int Abc_CommandAbc9TranStoch( Abc_Frame_t * pAbc, int argc, char ** argv )
|
|||
case 'z':
|
||||
fZeroCostHop ^= 1;
|
||||
break;
|
||||
case 'f':
|
||||
fRefactor ^= 1;
|
||||
break;
|
||||
case 't':
|
||||
fTruth ^= 1;
|
||||
break;
|
||||
|
|
@ -42854,23 +42866,25 @@ int Abc_CommandAbc9TranStoch( Abc_Frame_t * pAbc, int argc, char ** argv )
|
|||
}
|
||||
}
|
||||
|
||||
pTemp = Gia_ManTranStoch( pAbc->pGia, nRestarts, nHops, nSeedBase, fMspf, fMerge, fResetHop, fZeroCostHop, fTruth, fSingle, fOriginalOnly, fNewLine, pExdc, nVerbose );
|
||||
pTemp = Gia_ManTranStoch( pAbc->pGia, nRestarts, nHops, nSeedBase, fMspf, fMerge, fResetHop, fZeroCostHop, fRefactor, fTruth, fSingle, fOriginalOnly, fNewLine, pExdc, nThreads, nVerbose );
|
||||
if ( pExdc != NULL )
|
||||
Gia_ManStop( pExdc );
|
||||
Abc_FrameUpdateGia( pAbc, pTemp );
|
||||
return 0;
|
||||
|
||||
usage:
|
||||
Abc_Print( -2, "usage: &transtoch [-NMRV num] [-mgrztsonh] <file>\n" );
|
||||
Abc_Print( -2, "usage: &transtoch [-NMRPV num] [-mgrzftsonh] <file>\n" );
|
||||
Abc_Print( -2, "\t iterates transduction with randomized parameters\n" );
|
||||
Abc_Print( -2, "\t-N num : number of restarts [default = %d]\n", nRestarts );
|
||||
Abc_Print( -2, "\t-M num : number of hops (if; mfs2; strash) [default = %d]\n", nHops );
|
||||
Abc_Print( -2, "\t-R num : random seed [default = %d]\n", nSeedBase );
|
||||
Abc_Print( -2, "\t-P num : number of threads [default = %d]\n", nThreads );
|
||||
Abc_Print( -2, "\t-V num : verbosity level [default = %d]\n", nVerbose);
|
||||
Abc_Print( -2, "\t-m : toggles using MSPF instead of CSPF [default = %s]\n", fMspf? "yes": "no" );
|
||||
Abc_Print( -2, "\t-g : toggles using ResubShared [default = %s]\n", fMerge? "yes": "no" );
|
||||
Abc_Print( -2, "\t-r : toggles resetting hop count when new minimum is found [default = %s]\n", fResetHop? "yes": "no" );
|
||||
Abc_Print( -2, "\t-z : toggles using \"drw -z\" instead of \"if;mfs2;st\" for hop [default = %s]\n", fZeroCostHop? "yes": "no" );
|
||||
Abc_Print( -2, "\t-z : toggles using \"drf -z\" instead of \"if;mfs2;st\" for hop [default = %s]\n", fZeroCostHop? "yes": "no" );
|
||||
Abc_Print( -2, "\t-f : toggles using \"drf -z\" instead of \"&dc2\" for ite [default = %s]\n", fRefactor? "yes": "no" );
|
||||
Abc_Print( -2, "\t-t : toggles using truth table instead of BDD [default = %s]\n", fTruth? "yes": "no" );
|
||||
Abc_Print( -2, "\t-s : toggles starting from the smallest starting point [default = %s]\n", fSingle? "yes": "no" );
|
||||
Abc_Print( -2, "\t-o : toggles starting from the given AIG [default = %s]\n", fOriginalOnly? "yes": "no" );
|
||||
|
|
|
|||
Loading…
Reference in New Issue