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hcube.h
1 //
2 // hcube.h
3 //
4 // Copyright (C) 1996 Limit Point Systems, Inc.
5 //
6 // Author: Curtis Janssen <cljanss@limitpt.com>
7 // Maintainer: LPS
8 //
9 // This file is part of the SC Toolkit.
10 //
11 // The SC Toolkit is free software; you can redistribute it and/or modify
12 // it under the terms of the GNU Library General Public License as published by
13 // the Free Software Foundation; either version 2, or (at your option)
14 // any later version.
15 //
16 // The SC Toolkit is distributed in the hope that it will be useful,
17 // but WITHOUT ANY WARRANTY; without even the implied warranty of
18 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 // GNU Library General Public License for more details.
20 //
21 // You should have received a copy of the GNU Library General Public License
22 // along with the SC Toolkit; see the file COPYING.LIB. If not, write to
23 // the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
24 //
25 // The U.S. Government is granted a limited license as per AL 91-7.
26 //
27
28 #ifndef _util_group_hcube_h
29 #define _util_group_hcube_h
30
31 #include <util/group/topology.h>
32
33 namespace sc {
34
35 class HypercubeGMI: public GlobalMsgIter {
36 private:
37 int nhyper_;
38 protected:
39 int fwdsendto();
40 int fwdsend();
41 int fwdrecvfrom();
42 int fwdrecv();
43 public:
44 HypercubeGMI(int nproc, int me, int root);
45 ~HypercubeGMI();
46 };
47
48 // This utilitizes a hypercube topology, but will work for any number of
49 // nodes.
50 class HypercubeTopology: public MachineTopology {
51 public:
52 HypercubeTopology();
53 HypercubeTopology(const Ref<KeyVal>&);
54 ~HypercubeTopology();
55 Ref<GlobalMsgIter> global_msg_iter(const Ref<MessageGrp>&, int target);
56 };
57
58 }
59
60 #endif
61
62 // Local Variables:
63 // mode: c++
64 // c-file-style: "CLJ"
65 // End: