91 lines
2.7 KiB
C++
91 lines
2.7 KiB
C++
/*
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* Copyright (C) 2010 Thorsten Liebig (Thorsten.Liebig@gmx.de)
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef OPERATOR_MULTITHREAD_H
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#define OPERATOR_MULTITHREAD_H
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#include "operator_sse_compressed.h"
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#include <boost/thread.hpp>
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#ifdef MPI_SUPPORT
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#define OPERATOR_MULTITHREAD_BASE Operator_MPI
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#include "operator_mpi.h"
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#else
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#define OPERATOR_MULTITHREAD_BASE Operator_SSE_Compressed
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#endif
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class Operator_Multithread : public OPERATOR_MULTITHREAD_BASE
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{
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friend class Engine_Multithread;
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friend class Operator_Thread;
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public:
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//! Create a new operator
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static Operator_Multithread* New(unsigned int numThreads = 0);
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virtual ~Operator_Multithread();
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virtual void setNumThreads( unsigned int numThreads );
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virtual Engine* CreateEngine();
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protected:
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Operator_Multithread();
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virtual void Init();
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void Delete();
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virtual void Reset();
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virtual bool Calc_EC(); //this method is using multi-threading
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unsigned int (*m_Nr_PEC_thread)[3]; //count PEC edges per thread
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virtual bool CalcPEC(); //this method is using multi-threading
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virtual int CalcECOperator( DebugFlags debugFlags = None );
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//Calc_EC barrier
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boost::barrier* m_CalcEC_Start;
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boost::barrier* m_CalcEC_Stop;
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//CalcPEC barrier
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boost::barrier* m_CalcPEC_Start;
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boost::barrier* m_CalcPEC_Stop;
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boost::thread_group m_thread_group;
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unsigned int m_numThreads; // number of worker threads
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unsigned int m_orig_numThreads;
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//! Calculate the start/stop lines for the multithreading operator and engine.
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/*!
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It depends on the number of threads and number of lines to simulate.
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This method is also used by the multithreading engine!
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This method may also reduce the usable number of thread in case of too few lines or otherwise bad utilization.
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*/
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virtual void CalcStartStopLines(unsigned int &numThreads, vector<unsigned int> &start, vector<unsigned int> &stop) const;
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};
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class Operator_Thread
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{
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public:
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Operator_Thread( Operator_Multithread* ptr, unsigned int start, unsigned int stop, unsigned int threadID );
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void operator()();
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protected:
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unsigned int m_start, m_stop, m_threadID;
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Operator_Multithread *m_OpPtr;
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};
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#endif // OPERATOR_MULTITHREAD_H
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