Teuchos_ErrorPolling.cpp

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// Make deprecated warnings go away for compling this source file.   All of this
// code is deprecated so there is little point in flagging it as such!
#define TEUCHOS_DEPRECATED

#include "Teuchos_ErrorPolling.hpp"
#include "Teuchos_MPIComm.hpp"

namespace Teuchos
{
  void ErrorPolling::reportFailure(const MPIComm& comm)
  {
    if (isActive())
      {
        int myBad = 1;
        int anyBad = 0;
        comm.allReduce((void*) &myBad, (void*) &anyBad, 1, MPIComm::INT,
                       MPIComm::SUM);
      }
  }

  bool ErrorPolling::pollForFailures(const MPIComm& comm)
  {
    /* bypass if inactive */
    if (!isActive()) return true;

    int myBad = 0;
    int anyBad = 0;
    try
      {
        comm.allReduce((void*) &myBad, (void*) &anyBad, 1, MPIComm::INT,
                       MPIComm::SUM);
      }
    catch(const std::exception&)
      {
        return true;
      }
    return anyBad > 0;
  }
}