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# messmpi.h

    00001 //
    00002 // messmpi.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_messmpi_h
    00029 #define _util_group_messmpi_h
    00030
    00031 #include <util/group/message.h>
    00032 #include <util/group/thread.h>
    00033
    00034 #include <mpi.h>
    00035
    00036 namespace sc {
    00037
    00040 class MPIMessageGrp: public MessageGrp {
    00041   protected:
    00042     void* buf;
    00043     int bufsize;
    00044
    00045     int rnode;
    00046     int rtag;
    00047     int rlen;
    00048
    00050     static int nmpi_grps;
    00052     static Ref<ThreadLock> grplock;
    00053
    00054     Ref<ThreadGrp> threadgrp;
    00056     MPI_Comm commgrp;
    00057
    00059     void init(MPI_Comm comm, int *argc=0, char ***argv=0);
    00060   public:
    00061     MPIMessageGrp();
    00064     MPIMessageGrp(MPI_Comm comm);
    00068     MPIMessageGrp(int *argc, char ***argv);
    00070     MPIMessageGrp(const Ref<KeyVal>&);
    00071     ~MPIMessageGrp();
    00072
    00074     Ref<MessageGrp> clone(void);
    00075
    00076     void raw_send(int target, void* data, int nbyte);
    00077     void raw_recv(int sender, void* data, int nbyte);
    00078     void raw_sendt(int target, int type, void* data, int nbyte);
    00079     void raw_recvt(int type, void* data, int nbyte);
    00080
    00081     int probet(int type);
    00082
    00083     void sync();
    00084
    00085     void reduce(double*, int n, GrpReduce<double>&,
    00086                 double*scratch = 0, int target = -1);
    00087     void reduce(unsigned int*, int n, GrpReduce<unsigned int>&,
    00088                 unsigned int*scratch = 0, int target = -1);
    00089     void reduce(int*, int n, GrpReduce<int>&,
    00090                 int*scratch = 0, int target = -1);
    00091     void reduce(char*, int n, GrpReduce<char>&,
    00092                 char*scratch = 0, int target = -1);
    00093     void reduce(unsigned char*, int n, GrpReduce<unsigned char>&,
    00094                 unsigned char*scratch = 0, int target = -1);
    00095     void reduce(signed char*, int n, GrpReduce<signed char>&,
    00096                 signed char*scratch = 0, int target = -1);
    00097     void reduce(short*, int n, GrpReduce<short>&,
    00098                 short*scratch = 0, int target = -1);
    00099     void reduce(float*, int n, GrpReduce<float>&,
    00100                 float*scratch = 0, int target = -1);
    00101     void reduce(long*, int n, GrpReduce<long>&,
    00102                 long*scratch = 0, int target = -1);
    00103
    00104     void raw_bcast(void* data, int nbyte, int from);
    00105 };
    00106
    00107 }
    00108
    00109 #endif
    00110
    00111 // Local Variables:
    00112 // mode: c++
    00113 // c-file-style: "CLJ"
    00114 // End: