[OMPI users] MPI_Accumulate() Blocking?

MPI_Accumulate() is meant to be non-blocking, and MPI will block until completion when an MPI_Win_flush() is called, correct? In this (https://hastebin.com/raw/iwakacadey) microbenchmark, MPI_Accumulate() seems to be blocking for me in OpenMPI 1.10.6. I'm seeing timings like [brock@nid00622 junk

Re: [OMPI users] MPI I/O gives undefined behavior if the amount of bytes described by a filetype reaches 2^32

Hello, thank you very much for your interest in this problem. Please excuse the late response. I'm encountering the error on version 1.10.2 and 1.10.3 . Should I open a ticket on the github issue tracker? Kind Regards, Nils ___ users mailing list users