[Jlab-scicomp-briefs] CentOS 6.5 farm14 Haswell nodes in production - adds ~2500 cores

[Sandy Philpott]

Hello All, 

JLab's Experimental Physics' batch farm CentOS 6.5 nodes are now in production service; this brings the batch farm to almost 4000 cores.Please plan your move to this updated environment; the current 1400 core CentOS 6.2 environment will be migrated by summertime to run 6.5. Over the coming year, we will also begin testing with CentOS 7 for future use. 

The CentOS 6.5 interactive system for users is available via the alias "ifarm65.jlab.org"; more interactive nodes will be added using this alias as usage increases. Use the tag "OS: centos65" in your batch job submission scripts. 

Send questions or issues to helpdesk at jlab.org, and/or your Hall Computing Coordinator. All feedback welcome. 

Happy computing in 2015! 
Sandy 


From: "Sandy Philpott" <philpott at jlab.org> 
To: jlab-scicomp-briefs at jlab.org 
Sent: Tuesday, November 11, 2014 1:28:14 PM 
Subject: New farm14 nodes adding ~2500 cores 

JLab Scientific Computing Users, 

The 104 new Physics nodes for the data analysis farm cluster have just arrived (well, except their power cords, coming tomorrow). These farm14* nodes are dual Intel E5-2670v3 (Haswell) 12 core, 2.3 GHz, with 32 GB DDR4-2133 memory -- the leanest memory configuration in the farm (less than 1 GB per job slot on serial jobs). They will run with as many slots as experience shows they can handle, based upon statistical measurements in actual running. Their network includes 20 gigabit Infiniband DDR for I/O to the Lustre and ZFS filesystems. Their initial installation in the F112 Data Center begins this week. 

This farm node installation will add a total of 104 * 24 = 2496 cores to the existing 1400 core farm. We will be working with early users to identify the correct operating system and kernel to install, then move the systems to production mode as their burn-in proves successful. More details to follow. 

Regards, 
Sandy 


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