00001 /* @HEADER@ */ 00002 /* *********************************************************************** 00003 // 00004 // TSFExtended: Trilinos Solver Framework Extended 00005 // Copyright (2004) Sandia Corporation 00006 // 00007 // Under terms of Contract DE-AC04-94AL85000, there is a non-exclusive 00008 // license for use of this work by or on behalf of the U.S. Government. 00009 // 00010 // This library is free software; you can redistribute it and/or modify 00011 // it under the terms of the GNU Lesser General Public License as 00012 // published by the Free Software Foundation; either version 2.1 of the 00013 // License, or (at your option) any later version. 00014 // 00015 // This library is distributed in the hope that it will be useful, but 00016 // WITHOUT ANY WARRANTY; without even the implied warranty of 00017 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 00018 // Lesser General Public License for more details. 00019 // 00020 // You should have received a copy of the GNU Lesser General Public 00021 // License along with this library; if not, write to the Free Software 00022 // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 00023 // USA 00024 // Questions? Contact Michael A. Heroux (maherou@sandia.gov) 00025 // 00026 // **********************************************************************/ 00027 /* @HEADER@ */ 00028 00029 00030 #include "TSFGlobalAnd.hpp" 00031 #include "Teuchos_MPIComm.hpp" 00032 #include "Teuchos_TestForException.hpp" 00033 #include "SundanceOut.hpp" 00034 #ifdef HAVE_MPI 00035 #include "mpi.h" 00036 #endif 00037 00038 00039 namespace TSFExtended 00040 { 00041 bool globalAnd(bool localVal) 00042 { 00043 int out = localVal; 00044 00045 00046 #ifdef HAVE_MPI 00047 int in = localVal; 00048 int ierr = ::MPI_Allreduce((void*) &in, (void*) &out, 1, MPI_INT, 00049 MPI_LAND, MPI_COMM_WORLD); 00050 TEST_FOR_EXCEPTION(ierr != 0, std::runtime_error, 00051 "MPI_Allreduce returned error code=" << ierr); 00052 #endif 00053 00054 return out; 00055 } 00056 }