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: 2011-06-07 17:10:05

#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 dwsel@…):

 Hello!

 I experience the same issue with OpenMPI 1.4.2, gcc 4.4.5
 I'm still at very beginning of parallel programming, so I may be talking
 nonsense from time to time (if yes please correct me). I hope that
 discussion will attract some more professional users that will give better
 answer for this question.

 So far I consider 3 possibilities:

 1. incompatibility between
 {{{
 #!div style="font-size: 80%"
   {{{#!cpp
 std:iterator from v.begin() and v.end()
   }}}
 }}}
 as input parameter for
 {{{
 #!div style="font-size: 80%"
   {{{#!cpp
 template<typename InputIterator>
 group include(InputIterator first, InputIterator last);
   }}}
 }}}

 can be false because for vector of given length
 {{{
 #!div style="font-size: 80%"
   {{{#!cpp
 std::vector<int> v(x);
 g.size();
   }}}
 }}}
 gives number equal to vector length = x

 2. Some copy constructor/pointers issue
 This is pretty much blind suspect after reading (problem with posting link
 to article)

 3. Wrong parentheses along with process number that performs the operation
 of group creation

 I have to investigate the thing further by looking inside specific
 implementations. I hope to answer again in next few days.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/5596#comment:2>
Boost C++ Libraries <http://www.boost.org/>
Boost provides free peer-reviewed portable C++ source libraries.