pregtime.h

00001 //
00002 // pregtime.h
00003 //
00004 // Copyright (C) 1996 Limit Point Systems, Inc.
00005 //
00006 // Author: Curtis Janssen <cljanss@limitpt.com>
00007 // Maintainer: LPS
00008 //
00009 // This file is part of the SC Toolkit.
00010 //
00011 // The SC Toolkit is free software; you can redistribute it and/or modify
00012 // it under the terms of the GNU Library General Public License as published by
00013 // the Free Software Foundation; either version 2, or (at your option)
00014 // any later version.
00015 //
00016 // The SC Toolkit is distributed in the hope that it will be useful,
00017 // but WITHOUT ANY WARRANTY; without even the implied warranty of
00018 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019 // GNU Library General Public License for more details.
00020 //
00021 // You should have received a copy of the GNU Library General Public License
00022 // along with the SC Toolkit; see the file COPYING.LIB.  If not, write to
00023 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
00024 //
00025 // The U.S. Government is granted a limited license as per AL 91-7.
00026 //
00027 
00028 #ifdef __GNUC__
00029 #pragma interface
00030 #endif
00031 
00032 #ifndef _util_group_pregtime_h
00033 #define _util_group_pregtime_h
00034 
00035 #include <iostream>
00036 #include <util/misc/regtime.h>
00037 #include <util/group/message.h>
00038 
00039 namespace sc {
00040 
00041 class ParallelRegionTimer: public RegionTimer {
00042   protected:
00043     Ref<MessageGrp> msg_;
00044 
00045     void send_subregions(int node, const TimedRegion *r) const;
00046     void recv_subregions(int node, TimedRegion *r) const;
00047     void all_reduce_regions() const;
00048 
00049   public:
00050     ParallelRegionTimer(const Ref<MessageGrp>&,
00051                         const char *topname = "total",
00052                         int cpu_time = 0, int wall_time = 1);
00053     ParallelRegionTimer(const Ref<KeyVal>&);
00054     ~ParallelRegionTimer();
00055 
00056     void print(std::ostream& = ExEnv::out0()) const;
00057 };
00058 
00059 }
00060 
00061 #endif
00062 
00063 // Local Variables:
00064 // mode: c++
00065 // c-file-style: "CLJ"
00066 // End:

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