MpiFileIo.cpp

/*
* Util Package - C++ Utilities for Scientific Computation
*
* Copyright 2010 - 2017, The Regents of the University of Minnesota
* Distributed under the terms of the GNU General Public License.
*/
 
#include "MpiFileIo.h"
 
namespace Util
{
 
   /*
   * Constructor.
   *
   * Note: Default constructor for _indent string creates an empty string.
   */
   MpiFileIo::MpiFileIo() 
    : isIoProcessor_(true)
      #ifdef UTIL_MPI
      , communicatorPtr_(0)
      #endif
   {}
 
   /*
   * Copy constructor.
   */
   MpiFileIo::MpiFileIo(const MpiFileIo& other) 
    : isIoProcessor_(other.isIoProcessor_)
      #ifdef UTIL_MPI
      , communicatorPtr_(other.communicatorPtr_)
      #endif
   {}
 
   #ifdef UTIL_MPI
   void MpiFileIo::setIoCommunicator(MPI::Intracomm& communicator)
   {
      communicatorPtr_ = &communicator; 
      if (communicator.Get_rank() == 0) {
         isIoProcessor_ = true;
      } else {
         isIoProcessor_ = false;
      }
   }
 
   void MpiFileIo::clearCommunicator()
   {  
      communicatorPtr_ = 0; 
      isIoProcessor_  = true;
   }
   #endif
 
}