Re: [OMPI users] Segfault in ucp_dt_pack function from UCX library 1.8.0 and 1.11.2 for large sized communications using both OpenMPI 4.0.3 and 4.1.2

Hi Josh, ok, thanks for the suggestion.  We are in process to test with IntelMPI right now.  I hope to do it with a newer version of OpenMPI too. Do you suggest a minimum version for UCX lib? Thanks, Eric On 2022-06-02 04:05, Josh Hursey via users wrote: I would suggest trying OMPI v4.1.4

Re: [OMPI users] Segfault in ucp_dt_pack function from UCX library 1.8.0 and 1.11.2 for large sized communications using both OpenMPI 4.0.3 and 4.1.2

Hi Mikhail, On 2022-06-02 02:51, Mikhail Brinskii wrote: Hi Eric, Yes, UCX is supposed to be stable for large sized problems. Since I am highly aware about what it implies to deliver and deploy tested and verified software, I have headaches here because the validation toolchain required fo

Re: [OMPI users] Segfault in ucp_dt_pack function from UCX library 1.8.0 and 1.11.2 for large sized communications using both OpenMPI 4.0.3 and 4.1.2

I would suggest trying OMPI v4.1.4 (or the v5 snapshot)  * https://www.open-mpi.org/software/ompi/v4.1/  * https://www.mail-archive.com/announce@lists.open-mpi.org//msg00152.html