Re: [OMPI users] Running mpi with different account

Thanks very much Ralph. It works fine now. Just some more questions to make it clearer. 1. Your respond confuses me. Especially for this one, *The rsh launch is typically done in a tree topology, and so you get ssh from one backend node to another.* 2. By adding -mca plm_rsh_no_tree_spawn 1, it

Re: [OMPI users] Running mpi with different account

> On May 3, 2015, at 5:54 AM, XingFENG wrote: > > By changing the order of hosts, the program now can run on 6 machines with 2 > accounts. > > But it is very weird. Why the order of hosts would matter? Could any one > refer something about how openmpi work, please?

Re: [OMPI users] Running mpi with different account

By changing the order of hosts, the program now can run on 6 machines with 2 accounts. But it is very weird. Why the order of hosts would matter? Could any one refer something about how openmpi work, please? I have searched on the Internet but nothing related is found. On Sun, May 3, 2015 at

Re: [OMPI users] Running mpi with different account

I got some problems while running MPI programs with different account. I have done the following things. 1. I have set password-less connection between these machines. 2. I have specified user names in host file. 3. I have successfully run the program on two machines with two different accounts.