Dear Patrick and all,
Finally I solved the problem.
I need to mount -t nfs the home directory of host to the node/home
And then I can run in the cluster
Thank you for your time.
Best regards
Ha Chi
On Thu, 4 Jun 2020 at 17:09, Patrick Bégou <
patrick.be...@legi.grenoble-inp.fr> wrote:
> Ha Chi,
Ha Chi,
first running MPI applications as root in not a good idea. You must
create users in your rocks cluster without admin rights for all that is
not system management.
Let me know a little more about how you launch this:
1) Do you run "mpirun" from the rocks frontend or from a node ?
2) Ok
Dear Patrick,
Thanks so much for your reply,
Yes, we use ssh to log on the node. From the frontend, we can ssh to the
nodes without password.
the mpirun --version in all 3 nodes are identical, openmpi 2.1.1, and same
place when testing with "whereis mpirun"
So is there any problem with mpirun
Hi Ha Chi
do you use a batch scheduler with Rocks Cluster or do you log on the
node with ssh ?
If ssh, can you check that you can ssh from one node to the other
without password ?
Ping just says the network is alive, not that you can connect.
Patrick
Le 04/06/2020 à 09:06, Hà Chi Nguyễn Nhật
Dear Open MPI users,
Please help me to find the solution for the problem using mpirun with a
ROCK cluster, 3 nodes. I use the command:
mpirun -np 12 --machinefile machinefile.txt --allow-run-as-root ./wrf.exe
But mpirun was unable to access other nodes (as the below photo). But
actually I checked
