Thomas,
i did double check this and
- there is no problem with MPI_Isend/MPI_Irecv (datatypes are correctly
retained/released, and this part is well "hidden" inside some macros)
- there is no such thing with libnbc (and hence the bug). depending on
the collective and the algo that will be
Thomas,
thanks for the report,
at first glance, libnbc (the default module that implements non blocking
collective) does not retain/release datatypes, that is why you ran into
this kind of trouble.
I quickly checked the code, and it seems this kind of mechanism is also
missing for
Dear friends of Open MPI,
I am currently facing a problem in connection with MPI_Ibcast and
MPI_Type_free. I've been able to isolate the problem in a minimalistic test
program which I attached.
Maybe some of you can tell me what I am doing wrong or confirm that this might
be a bug in Open
