From a message by Uwe Sauter in an earlier thread I read: --- Is it really necessary to re-link MPI for every bug fix release? I had some trouble with MPI after the upgrade 14.3 -> 14.11 but I haven't seen problems between bug fix releases so far… ---
I wonder if Uwe could expand on the trouble that was encountered, or whether anyone else on the list ran into similar problems. I ask because some of our users have started reporting a 10x increase in run-times of OpenMPI jobs since we upgraded to 14.11.3 from 14.3. It's possible there is some other problem going on in our cluster, but all of our hardware checks including Infiniband diagnostics look pretty clean. Thanks for any suggestions, Peter
