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Benchmark DWF works

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This commit is contained in:
paboyle 2017-06-22 08:38:54 +01:00
parent 6ebf9f15b7
commit 5e4bea8f20
1 changed files with 11 additions and 7 deletions
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18
lib/communicator/Communicator_mpi.cc
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@ -86,19 +86,23 @@ CartesianCommunicator::CartesianCommunicator(const std::vector<int> &processors,
Lexicographic::IndexFromCoor(scoor,slex,processors);
MPI_Comm comm_split;
int ierr= MPI_Comm_split(communicator_world, rlex, slex,&comm_split);
assert(ierr==0);
if ( Nsubcomm > 1 ) {
int ierr= MPI_Comm_split(communicator_world, rlex, slex,&comm_split);
assert(ierr==0);
//////////////////////////////////////////////////////////////////////////////////////////////////////
// Declare victory
//////////////////////////////////////////////////////////////////////////////////////////////////////
std::cout << "Divided communicator "<< parent._Nprocessors<<" into "
<<Nsubcomm <<" communicators with " << Nsubrank << " ranks"<<std::endl;
} else {
comm_split = communicator_world;
}
//////////////////////////////////////////////////////////////////////////////////////////////////////
// Set up from the new split communicator
//////////////////////////////////////////////////////////////////////////////////////////////////////
InitFromMPICommunicator(processors,comm_split);
//////////////////////////////////////////////////////////////////////////////////////////////////////
// Declare victory
//////////////////////////////////////////////////////////////////////////////////////////////////////
std::cout << "Divided communicator "<< parent._Nprocessors<<" into "
<<Nsubcomm <<" communicators with " << Nsubrank << " ranks"<<std::endl;
}
//////////////////////////////////////////////////////////////////////////////////////////////////////