[OMPI users] Running mpirun from a "worker" node on two nodes.

Good morning, Sorry of the subject line is not very clear. I hope someone can answer my question. I have two nodes. Node 1- radoncjonsnow: 64 cores, runs ubuntu 18.04, OpenMPI-4.0.2, NFS, password-less ssh to node 2. Node 2- radonc-phaser11: 12 cores, runs ubuntu 18.04, OpenMPI-4.0.2, NFS, pa

[OMPI users] OpenMPI-4.0.1 ubuntu 18.04 server

Hi, I am using OpenMPI-4.0.1 on a single ubuntu 18.04 server with 64 cores. I compiled an “hello.c” file with:mpicc hello.c -o openmpi_hello When I run mpirun -np 64 openmpi_hello I got the following error. [radoncjonsnow:08747] *** Process received signal *** [radoncjonsnow:08747] Signal

Re: [OMPI users] error running mpirun command

Hi Jeff, Thank you for picking up on the thread. I followed your suggestion and I also did some research. I think I fixed the issue. My problem was two things: 1) From the mater node I made sure i could do a password-less ssh connection to the other nodes via; IP address of the nodes, host

Re: [OMPI users] error running mpirun command

Hi Gilles, Thank you for your message and your suggestion. As you suggested i tried mpirun -np 84 - -hostfile hostsfile --mca routed direct ./openmpi_hello.c The command hangs with no message or error message until i hit "control + z". Then i have the same error message as before. To answer

[OMPI users] error running mpirun command

Hello everyone, I am new to Open MPI please forgive me for my beginner mistake. I read through the FAQ of open-mpi.org website and built a small cluster (9 nodes - including a master node). I thought i followed the instructions accordingly but i am having issue running a si