owner, status changed

Fri, 18 Jun 2010 06:56:51 GMT

owner changed from Douglas Gregor to anonymous
status new → assigned

status changed; resolution set

Fri, 18 Jun 2010 06:57:48 GMT

status assigned → closed
resolution → invalid

christopher.bignamini@… — Wed, 23 Oct 2013 15:03:38 GMT

Replying to Didier Devaurs <ddevaurs@…>:

Hello, I am observing in the current boost release (1.54) in Boost MPI the same problem you described in the ticket (I have tried to your example). A similar problem is also observable by running the code below (sorry for bad indent), I guess due to the same bug(?) in the wait_any function (I hope that the rest of my code is bug free..). It is not clear to me if the ticket you have opened has been solved, did the developers fix the bug?

Christopher Bignamini

mpi::communicator mpiCommunicator;
const int taskId(mpiCommunicator.rank());
const int numberOfTasks(mpiCommunicator.size());
if(taskId==0){
 double* slaveData = new double[numberOfTasks-1];
 mpi::request* receiveRequest = new mpi::request[numberOfTasks-1];
 for(int taskId=1;taskId<numberOfTasks;++taskId) {
  receiveRequest[taskId-1] = mpiCommunicator.irecv(taskId,
                                                  taskId,
                                                  &slaveData[taskId-1],
                                                  1);
 }
 unsigned int numberOfReceivedContributions(0);
 do {
  const mpi::status& communicationStatus(mpi::wait_any(receiveRequest,
                                                       receiveRequest + numberOfTasks - 1).first);
  if(communicationStatus.error()==0) {
      const int subDomainIndex(communicationStatus.source());
      ++numberOfReceivedContributions;
      ...DO..SOMETHING WITH AVAILABLE DATA...
    }
 }while(numberOfReceivedContributions<numberOfTasks-1);
 delete [] slaveData;
 delete [] receiveRequest;
}
else{
 double dataTmp(...);
 mpiCommunicator.send(0,mpiCommunicator.rank(),dataTmp);
}

Boost C++ Libraries: Ticket #4348: [Boost.MPI] wait_any and wait_some don't wait at all

owner, status changed

status changed; resolution set