Re: How to build a cluter based on 2 PCs?

[Xiaoming Hu <xhu@ncsu.edu>]

Thanks very much

I guess I need to do a research on how to submit the job through mpirun

Initially I thought mpirun will know the machines in the cluster since I 
listed them in /etc/hosts.

Another question: do I need a copy of hosts on each of the machines in 
the cluster(basically 2 laptops in my case)?

Thanks very much

Xiaoming


Mario Lang wrote:
> Xiaoming Hu <xhu@ncsu.edu> writes:
>
> > I have two laptops with ubuntu system. I got NFS working also ssh
> > without password prompt between the two laptops. I also installed
> > MPICH.
> > And my simple parallel code is compiled successfully. But after I use
> > mpirun -np n xxx to submit my job. it doesn't work.
>
> What error message do you get?  Did you configure your default MPICH hosts
> file, or create one for your job?
>
> mpirun -machinefile some-file-name -np xxx ...