On 09:06 Mon 14 May , Ilja Honkonen wrote:
> Thanks, so it's a feature. A bit surprising though since usually local
> variables are deallocated automatically.
Not much more surprising than an array allocated by malloc() not being
automatically deallocated once the pointer dies. The datatype variable
is merely a handle, Open MPI has an internal data store for each
user-defines datatype. Same for requests AFAIK.
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