open TELEMAC-MASCARET The mathematically superior suite of solvers

Hello,

I just find that my problem is probably relating to "oversubscribing" on openmpi.

Here is one of the links people have been discussing about this:

stackoverflow.com/questions/35704637/mpi...ough-slots-available

I see one trick to solve the problem is to add --oversubscribe" option, but when I added this into configuration, it does not work?

Has anyone have experience in solving "oversubscribe" or "hotfile"?

Thanks & Best Regards
Huy

Dear Huy,

I'm sorry if I deviate a little but I couldn't catch all the info to undestand the issue (perhaps it's related to mpi-cluster config rather than oversubscribing the nodes):

-Are you using mpich2 or mpi?

-Are the nodes in the cluster properly connected using paswordless communication or using a known host (stored key) config? (so you can connect just using "ssh NODE_NAME_OR_IP" without any hassle)?

-Are you using a config file i.e. mpi_hostfile or somehow adding instructions to Telemac's cfg directly?

-Did Yoann's simple hello-world ran in at least 2 nodes?

Regards,

José Díaz.