How to run an MPI program on multiple nodes (hosts) which are not joined into a domain ?

[ArthurRatz]

Dear Collegues,

How to run an MPI program on multiple nodes (hosts) which are not joined into a domain ? When I try to do it an MPI program doesn't run due to mpiexec utility rejects credentials on one of the two hosts.

Thanks in advance.

Cheers, Arthur.

[ArthurRatz]

This problem is also solved, you should have used the --impersonate key of mpiexec utility to use it without domain credentials.

[ArthurRatz]

Also it's recommended to join multiple nodes to domain to provide an easier administration.

[ArthurRatz]

It's recommended to use a shared network storage for your MPI application since there's no need to install the application on each host separately.

[ArthurRatz]

It's better to run your MPI program in datacenter such as Microsoft Azure or Amazon EC2 since it provides a computational cluster complete solution rather than performing a setting up and administration tasks by your own.

[ArthurRatz]

And also remember that you need to install Intel MPI Library on each host (node) in a cluster to parallelize your MPI application execution.