T3News201206051438 < CmsTier3

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*CMS Tier-3 News Item*

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We spent the latest month installing, configuring and testing the new 11 Intel servers type S2600JF each equipped with 48GB RAM and 2 recent "Sandy Bridge" Intel Xeon E5-2670 CPUs.</br>
These new servers have 16 physical cores, so this gives us 11 * 16 = 176 additional job slots.

What you need to know to use these servers:
   * New nodes and old nodes are served by the same queues (=short.q=, =all.q=, =long.q= as before), but free slots on the new fast nodes will be filled preferentially.
   * Choose the correct queue according to the job's walltime on the older, slower nodes. Use an approximate scale factor of =1.2= for conversion (e.g., a job that takes =80min= on the new node =t3wn35= may take =~96min= on the older nodes, so such jobs are too long for the =short.q= and you should send it to =all.q=). This conversion holds true, if your jobs are just CPU bound.

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T3NewsForm
Title	Added new WNs t3wn[30-40]
Summary	Introduced additional 176 job slots, each ~1.2 faster than the previous 160 slots.
User	FabioMartinelli
Date	05. 06. 2012

This topic: CmsTier3 > WebHome > AdminArea > T3News201206051438
Topic revision: r2 - 2012-06-12 - FabioMartinelli