Hello, I met a bug with OpenMPI 2.1.1 distributed in the latest Ubuntu 18.04.2 LTS. It happens with self to self send/recv using MPI_ANY_SOURCE for message matching. See the attached test code. You can reproduce it even with one process. It is a severe bug. Since this Ubuntu is widely used and has long term support, could it be somehow fixed? Thanks a lot.
--Junchao Zhang
any.c
Description: any.c
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