Re: [Boost-bugs] [Boost C++ Libraries] #5596: MPI: problem creating communicator

Subject: Re: [Boost-bugs] [Boost C++ Libraries] #5596: MPI: problem creating communicator
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2011-06-14 08:58:02

#5596: MPI: problem creating communicator
----------------------------------------+-----------------------------------
  Reporter:  irek.szczesniak@…          |       Owner:  dgregor
      Type:  Bugs                       |      Status:  new    
 Milestone:  To Be Determined           |   Component:  mpi    
   Version:  Boost 1.42.0               |    Severity:  Problem
Resolution:                             |    Keywords:         
----------------------------------------+-----------------------------------

Comment (by irek.szczesniak@…):

 I tested your solution and it doesn't resolve the problem.  The program
 still utilizes the CPU 100%, and doesn't finish.  So creating the
 communicator dynamically doesn't make a difference.

 Replying to [comment:3 monika.cienkus@…]:
 > It's strange but dynamically created communicator work fine.
 >
 >
 > {{{
 > #include <vector>
 > #include <boost/mpi.hpp>
 > namespace mpi = boost::mpi;
 > int main(int argc, char argv[])
 > {
 >    mpi::environment env(argc, argv);
 >    mpi::communicator world, c;
 >
 >    std::vector<int> v(1);
 >    mpi::group wg = world.group();
 >    mpi::group g = wg.include(v.begin(), v.end());
 >    c = new mpi::communicator(world, g);
 >
 >    if (!world.rank()){
 >       std::cout << "v.size : " << v.size() << std::endl;
 >       std::cout << "wg.size : " << wg.size() << std::endl;
 >       std::cout << "g.size : " << g.size() << std::endl;
 >       std::cout << "c.size : " << c->size() << std::endl;
 > }
 >
 > return 0;
 > }
 >
 > }}}
 >

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5596#comment:6>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.