applications/test/parallel/parallelTest.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   4    \\    /   O peration     |
   5     \\  /    A nd           | Copyright (C) 1991-2010 OpenCFD Ltd.
   6      \\/     M anipulation  |
   7 -------------------------------------------------------------------------------
   8 License
   9     This file is part of OpenFOAM.
  10
  11     OpenFOAM is free software: you can redistribute it and/or modify it
  12     under the terms of the GNU General Public License as published by
  13     the Free Software Foundation, either version 3 of the License, or
  14     (at your option) any later version.
  15
  16     OpenFOAM is distributed in the hope that it will be useful, but WITHOUT
  17     ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18     FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  19     for more details.
  20
  21     You should have received a copy of the GNU General Public License
  22     along with OpenFOAM.  If not, see <http://www.gnu.org/licenses/>.
  23
  24 Application
  25     icoFoam
  26
  27 Description
  28     Incompressible laminar CFD code.
  29
  30 \*---------------------------------------------------------------------------*/
  31
  32 #include "argList.H"
  33 #include "Time.H"
  34 #include "IPstream.H"
  35 #include "OPstream.H"
  36 #include "vector.H"
  37 #include "IOstreams.H"
  38
  39 using namespace Foam;
  40
  41 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  42
  43 int main(int argc, char *argv[])
  44 {
  45
  46 #   include "setRootCase.H"
  47 #   include "createTime.H"
  48
  49 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  50
  51     Perr<< "\nStarting transfers\n" << endl;
  52
  53     vector data(0, 1, 2);
  54
  55     if (Pstream::parRun())
  56     {
  57         if (Pstream::myProcNo() != Pstream::masterNo())
  58         {
  59             {
  60                 Perr<< "slave sending to master "
  61                     << Pstream::masterNo() << endl;
  62                 OPstream toMaster(Pstream::scheduled, Pstream::masterNo());
  63                 toMaster << data;
  64             }
  65
  66             Perr<< "slave receiving from master "
  67                 << Pstream::masterNo() << endl;
  68             IPstream fromMaster(Pstream::scheduled, Pstream::masterNo());
  69             fromMaster >> data;
  70
  71             Perr<< data << endl;
  72         }
  73         else
  74         {
  75             for
  76             (
  77                 int slave=Pstream::firstSlave();
  78                 slave<=Pstream::lastSlave();
  79                 slave++
  80             )
  81             {
  82                 Perr << "master receiving from slave " << slave << endl;
  83                 IPstream fromSlave(Pstream::scheduled, slave);
  84                 fromSlave >> data;
  85
  86                 Perr<< data << endl;
  87             }
  88
  89             for
  90             (
  91                 int slave=Pstream::firstSlave();
  92                 slave<=Pstream::lastSlave();
  93                 slave++
  94             )
  95             {
  96                 Perr << "master sending to slave " << slave << endl;
  97                 OPstream toSlave(Pstream::scheduled, slave);
  98                 toSlave << data;
  99             }
 100         }
 101     }
 102
 103     Info<< "End\n" << endl;
 104
 105     return 0;
 106 }
 107
 108
 109 // ************************************************************************* //