[MPICH] Master tied to one node

[Reuti]

Yes, you can specify -nolocal to mpirun and have a special machinefile 
where the first one mentioned is the one where you want to run the 
masterjob. This works for the ch_p4 device and you will have exactly the 
number of rsh/ssh calls as requested cpus. - Reuti

Alok G Singh wrote:
> Is it possible for the master task (taskid 0) to be tied to a specified (in some way, IP address, hostname) processor ? From some preliminary experiments that I did, the master always runs on the node where the job is fired (the submit node is also part of the cluster). Is this always the case or is it just coincidence ?
> 
> What is required is to make the master process run only a special type of node (one which has local storage, in this case). Any help would be much appreciated.
> 
> TIA,
> Alok
> 
> ---
> Conscience is a mother-in-law whose visit never ends.
> 		-- H. L. Mencken