Hi Kihan. I did work on this topic a couple of years ago. Give me time and I might find any notes I made.
May I ask which kernel version you are using On Tue, 25 Feb 2020, 05:28 Kihang Youn via users, <users@lists.open-mpi.org> wrote: > > > Hello, > > I am searching the option to apply different service level(SL) in > Infiniband communication. > For example, In Intel MPI, the environment variable named > "DAPL_IB_SERVICE_LEVEL" can change the SL. > I found a runtime options "btl_openib_ib_service_level" and "UCX_IB_SL" on > the FAQ pages. > Please let me know similar environment variable in OPENMPI if it exist. > > Thank you, > Kihang > > > > *Kihang Youn(윤기항)* - Application Analyst | Lenovo DCG Professional > Services > Mobile: +82-10-9374-9396 > E-mail: ky...@lenovo.com >
