# hcube.h

    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: