00001 // @HEADER 00002 // *********************************************************************** 00003 // 00004 // Teuchos: Common Tools Package 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 #include "Teuchos_ErrorPolling.hpp" 00030 #include "Teuchos_MPIComm.hpp" 00031 00032 namespace Teuchos 00033 { 00034 void ErrorPolling::reportFailure(const MPIComm& comm) 00035 { 00036 if (isActive()) 00037 { 00038 int myBad = 1; 00039 int anyBad = 0; 00040 comm.allReduce((void*) &myBad, (void*) &anyBad, 1, MPIComm::INT, 00041 MPIComm::SUM); 00042 } 00043 } 00044 00045 bool ErrorPolling::pollForFailures(const MPIComm& comm) 00046 { 00047 /* bypass if inactive */ 00048 if (!isActive()) return true; 00049 00050 int myBad = 0; 00051 int anyBad = 0; 00052 try 00053 { 00054 comm.allReduce((void*) &myBad, (void*) &anyBad, 1, MPIComm::INT, 00055 MPIComm::SUM); 00056 } 00057 catch(std::exception& ex) 00058 { 00059 return true; 00060 } 00061 return anyBad > 0; 00062 } 00063 } 00064 00065 00066 00067 00068 00069 00070 00071 00072