hcube.h Source File

00001 //
00002 // hcube.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 #ifndef _util_group_hcube_h
00029 #define _util_group_hcube_h
00030 
00031 #include <util/group/topology.h>
00032 
00033 namespace sc {
00034 
00035 class HypercubeGMI: public GlobalMsgIter {
00036   private:
00037     int nhyper_;
00038   protected:
00039     int fwdsendto();
00040     int fwdsend();
00041     int fwdrecvfrom();
00042     int fwdrecv();
00043   public:
00044     HypercubeGMI(int nproc, int me, int root);
00045     ~HypercubeGMI();
00046 };
00047 
00048 // This utilitizes a hypercube topology, but will work for any number of
00049 // nodes.
00050 class HypercubeTopology: public MachineTopology {
00051   public:
00052     HypercubeTopology();
00053     HypercubeTopology(const Ref<KeyVal>&);
00054     ~HypercubeTopology();
00055     Ref<GlobalMsgIter> global_msg_iter(const Ref<MessageGrp>&, int target);
00056 };
00057 
00058 }
00059 
00060 #endif
00061 
00062 // Local Variables:
00063 // mode: c++
00064 // c-file-style: "CLJ"
00065 // End: