[Beowulf] first cluster
douglas.guptill at dal.ca
Fri Jul 16 10:59:09 EDT 2010
On Fri, Jul 16, 2010 at 10:02:53AM +0100, Hearns, John wrote:
> As an aside, my two pence worth on this thread.
I agree, the topic seems to have shifted...
> To the original poster - you have done your research on what is needed
> for a first cluster.
> Take may advice, and that of a lot of people on this list, and contact a
> cluster vendor in your area.
> You will be surprised at how competitive the price is versus sourcing
> the parts yourself.
> And remember - people who build clusters are specialists in that task,
> you are a specialist in oceanography.
We have ordered the cluster from a local builder, and expect delivery
in about 4 weeks. I am a servant of the Oceanographers, my specialty
Thanks for the advice. I conclude there are no magic bullet
solutions. One must do research, make an educated guess, and then
hold one's nose and jump in at the deep end.
There is one question that perplexes me, to which I have not found an
How does the presence of a job scheduler interact with the ability of a user to
ssh to <head>,
ssh to <compute-node-n>, and then type
mpirun -np 64 my_application
Intuition tells me there has to be something in a cluster setup, when
it has a scheduler, that prevents a user from circumventing the
scheduler by doing something like the above.
> John Hearns McLaren Racing
BTW, congratulations on a great season this year.
Douglas Guptill voice: 902-461-9749
Research Assistant, LSC 4640 email: douglas.guptill at dal.ca
Oceanography Department fax: 902-494-3877
Halifax, NS, B3H 4J1, Canada
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