[Beowulf] nodes reserved but not used?

John Hearns john.hearns at streamline-computing.com
Wed Mar 8 16:12:30 PST 2006

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

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