[Swift-devel] Experiments on Beagle

[Michael Wilde]

Lorenzo, 10K cores sounds great.

Regarding not using all the nodes: I have seen that on Cray test runs, but only at >16K cores.  Its also possible that one or more throttle settings are holding back your runs.

Can you point us to the run directory where we can watch your log file and see your config files and your script?

- Mike


----- Original Message -----
> From: "Lorenzo Pesce" <lpesce at uchicago.edu>
> To: "swift-devel Devel" <swift-devel at ci.uchicago.edu>
> Sent: Thursday, October 25, 2012 10:05:52 AM
> Subject: [Swift-devel] Experiments on Beagle
> Hi --
> I am running on more than 10,000 cores because there are a good number
> of users having problems running their jobs, which left the machine
> for me =)
> 
> I am doing work for a user, so don't worry too much.
> 
> I am just writing in case you want to take a look at how the
> simulations are proceeding, how the memory is used (login5, user
> lpesce) and how the number of tasks goes up and down as jobs are
> completed.
> (For example, I asked for 500 nodes and I am getting only a little
> over 400, but the machine has available the nodes I asked for, swift
> is just not taking them as far as I can tell, the number first spiked
> up to the requested number of nodes --I think-- then winded down)
> 
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-- 
Michael Wilde
Computation Institute, University of Chicago
Mathematics and Computer Science Division
Argonne National Laboratory