Boost C++ Libraries: Ticket #2399: Python boost.mpi.Request.test() crashes

Matthias Troyer — Fri, 07 Aug 2009 02:27:17 GMT

This seems to be very close to what is actually implemented? Can you check whether this problem really exists?

status changed; resolution set

anonymous — Fri, 07 Aug 2009 15:27:08 GMT

status new → closed
resolution → invalid

I'm closing this since I cannot see that the version in 1.36 is really different from what is proposed here. Earlier versions might have that problem but not 1.36 or higher. If the problem really exists please submit a test case.

status changed; resolution deleted

anonymous — Fri, 07 Aug 2009 16:35:10 GMT

status closed → reopened
resolution invalid

Sure, it's just:

import mpi

if mpi.rank == 0:

request = mpi.world.isend(value="foo", dest=1) print request.test()

$ mpirun -np 2 python bug.py Traceback (most recent call last):

File "bug.py", line 5, in <module>

print request.test()

TypeError: No to_python (by-value) converter found for C++ type: boost::optional<boost::mpi::status>

anonymous — Fri, 07 Aug 2009 16:36:36 GMT

Sorry, I forgot to say, I just verified this in 1.39.0. The appropriate wrapper is there for request_with_value, but the same thing needs to be done for request .

Matthias Troyer — Fri, 07 Aug 2009 17:05:55 GMT

Now I understand the issue. I've implemented your proposed fix on the trunk. an you please check whether it works?