Re: [OMPI users] Creating An MPI Job from Procs Launched by a Different Launcher

You need a way for your process to exchange information so MPI_Init() can work. One option is to have your custom launcher implement a PMIx server https://pmix.github.io If you choose this path, you will likely want to use the Open PMIx reference implementation https://openpmix.github.io

Re: [OMPI users] Creating An MPI Job from Procs Launched by a Different Launcher

Any pointers? On Tue, Jan 25, 2022 at 12:55 PM Ralph Castain via users < users@lists.open-mpi.org> wrote: > Short answer is yes, but it it a bit complicated to do. > > On Jan 25, 2022, at 12:28 PM, Saliya Ekanayake via users < > users@lists.open-mpi.org> wrote: > > Hi, > > I am trying to run an

Re: [OMPI users] Creating An MPI Job from Procs Launched by a Different Launcher

Short answer is yes, but it it a bit complicated to do. On Jan 25, 2022, at 12:28 PM, Saliya Ekanayake via users mailto:users@lists.open-mpi.org> > wrote: Hi, I am trying to run an MPI program on a platform that launches the processes using a custom launcher (not mpiexec). This will end up