[Beowulf] nodes reserved but not used?

[John Hearns]

On Wed, 2006-03-08 at 11:54 +0000, Ru-Zhen Li wrote:
> Dear All,
>  
> I am having problem with reserved nodes not being used.
>  
> I used 
>  
> /home/hep/lrz/mpich2-install/bin/mpiexec -machinefile shortlist -n
> 16 ./DLPOLY.Y

A very stupid reply, but what happens if you run a simple 'hello world'
MPI program? Do you get a response from all ranks?

Also when the program is running, try "ps -eaf --forest" on one of the
compute nodes