applications/test/parallel/parallelTest.C

   1 /*---------------------------------------------------------------------------*\
   2   =========                 |
   3   \\      /  F ield         | OpenFOAM: The Open Source CFD Toolbox
   4    \\    /   O peration     |
   5     \\  /    A nd           | Copyright (C) 1991-2009 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 the
  13     Free Software Foundation; either version 2 of the License, or (at your
  14     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, write to the Free Software Foundation,
  23     Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
  24
  25 Application
  26     icoFoam
  27
  28 Description
  29     Incompressible laminar CFD code.
  30
  31 \*---------------------------------------------------------------------------*/
  32
  33 #include "argList.H"
  34 #include "Time.H"
  35 #include "IPstream.H"
  36 #include "OPstream.H"
  37 #include "vector.H"
  38 #include "IOstreams.H"
  39
  40 using namespace Foam;
  41
  42 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  43
  44 int main(int argc, char *argv[])
  45 {
  46
  47 #   include "setRootCase.H"
  48 #   include "createTime.H"
  49
  50 // * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * //
  51
  52     Perr<< "\nStarting transfers\n" << endl;
  53
  54     vector data(0, 1, 2);
  55
  56     if (Pstream::parRun())
  57     {
  58         if (Pstream::myProcNo() != Pstream::masterNo())
  59         {
  60             {
  61                 Perr<< "slave sending to master "
  62                     << Pstream::masterNo() << endl;
  63                 OPstream toMaster(Pstream::masterNo());
  64                 toMaster << data;
  65             }
  66
  67             Perr<< "slave receiving from master "
  68                 << Pstream::masterNo() << endl;
  69             IPstream fromMaster(Pstream::masterNo());
  70             fromMaster >> data;
  71
  72             Perr<< data << endl;
  73         }
  74         else
  75         {
  76             for
  77             (
  78                 int slave=Pstream::firstSlave();
  79                 slave<=Pstream::lastSlave();
  80                 slave++
  81             )
  82             {
  83                 Perr << "master receiving from slave " << slave << endl;
  84                 IPstream fromSlave(slave);
  85                 fromSlave >> data;
  86
  87                 Perr<< data << endl;
  88             }
  89
  90             for
  91             (
  92                 int slave=Pstream::firstSlave();
  93                 slave<=Pstream::lastSlave();
  94                 slave++
  95             )
  96             {
  97                 Perr << "master sending to slave " << slave << endl;
  98                 OPstream toSlave(slave);
  99                 toSlave << data;
 100             }
 101         }
 102     }
 103
 104     Info<< "End\n" << endl;
 105
 106     return 0;
 107 }
 108
 109
 110 // ************************************************************************* //