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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:

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