[Boost-bugs] [Boost C++ Libraries] #10199: When requested mpi threading level cannot be provided, some sort of error should be reported

Subject: [Boost-bugs] [Boost C++ Libraries] #10199: When requested mpi threading level cannot be provided, some sort of error should be reported
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2014-07-15 18:17:53

#10199: When requested mpi threading level cannot be provided, some sort of error
should be reported
------------------------------+----------------------
 Reporter:  ClaytonGDavis@…   |      Owner:  troyer
     Type:  Feature Requests  |     Status:  new
Milestone:  To Be Determined  |  Component:  mpi
  Version:  Boost 1.55.0      |   Severity:  Cosmetic
 Keywords:                    |
------------------------------+----------------------
 When mpi::environment requests a threading level with one of the
 constructors:

 {{{
 explicit environment(threading::level, bool = true);
 environment(int &, char **&, threading::level, bool = true);
 }}}

 there is no guarantee that the requested threading level is actually
 available.  Boost::mpi receives the actual threading level provided, but
 ignores it.

 Instead, I suggest that an exception should be thrown when the provided
 level of threading support is less than requested.  This would, for
 example, catch the common scenario where the MPI library was only compiled
 for single-threaded programs.

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/10199>
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