[StarCluster] CPU load

Jacob Barhak jacob.barhak at gmail.com
Thu Jul 30 13:52:49 EDT 2015


Hi Christopher,

Do you have a lot of I/O? For example writing and reading many files to the
same NFS location?

This may explain things.

          Jacob
On Jul 30, 2015 2:34 AM, "Christopher Clearfield" <
chris.clearfield at system-logic.com> wrote:

> Hi All,
> I'm running a set of about 60K relatively short jobs that take 30 minutes
> to run. This is through ipython parallel.
>
> Yet my CPU utilization levels are relatively small:
>
> queuename qtype resv/used/tot. load_avg arch states
> ---------------------------------------------------------------------------------
> all.q at master BIP 0/0/2 0.98 linux-x64
> ---------------------------------------------------------------------------------
> all.q at node001 BIP 0/0/8 8.01 linux-x64
> ---------------------------------------------------------------------------------
> all.q at node002 BIP 0/0/8 8.07 linux-x64
> ---------------------------------------------------------------------------------
> all.q at node003 BIP 0/0/8 7.96 linux-x64
>
> (I disabled the ipython engines on master because I was having heartbeat
> timeout issues with the worker engines on my nodes, which explains why that
> is so low).
>
> But ~8% utilization on the nodes. Is that expected?
>
> Thanks,
> Chris
>
>
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