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Computing and IT Update Jefferson Lab User Group Roy Whitney, CIO & CTO 10 June 2009. Sci Comp – Physics Farm. Moving 2 racks 6n nodes (bought by base funds) from LQCD to the farm (3rd upgrade funded by LQCD) Adding a new cluster of 10 nodes
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Computing and IT Update Jefferson Lab User Group Roy Whitney, CIO & CTO 10 June 2009
Sci Comp – Physics Farm • Moving 2 racks 6n nodes (bought by base funds) from LQCD to the farm (3rd upgrade funded by LQCD) • Adding a new cluster of 10 nodes • 2.8 GHz dual Nehalem (much faster than current farm nodes) • 64 bit OS: CentOS 5.3 • Desktop CUE Level 1/2 machines at RHEL 5.3 64-bit will be supported • Primary user (and funder) is muon beam simulation project, but farm will end up getting lots of cycles & testbed for 64 bit • Decommissioning oldest nodes (not worth the electricity anymore) • Planning for FY2010 upgrades • Cache disk capacity & performance • More new Nehalem nodes (64 bit) • Some new work disk http://scicomp.jlab.org/
Sci Comp – Tape Library • Almost finished moving 3 PB of data from old silos to new library • When finished will have 3x bandwidth of old system • During past year 25%-50% of bandwidth was used for the transfer • Higher performance revealed problems in slow cache nodes (performance mismatch) • Capacity is limited! • High tape usage on limited budget means from now on, not all data will fit into the tape library • Oldest tapes are now being ejected and put into storage • Re-mount will take up to a week • Capacity upgrade will come in 2010, but…intention is to hold sliding window of N years of data (N tbd)
Lattice QCD / High Performance Computing • JLab currently runs ~660 nodes with ~3700 cores, for LQCD computing, as part of the USQCD collaboration • JLab will host a new $5M project for LQCD computing funded by ARRA through the Nuclear Physics office • $3.2M for computing (6x - 12x capacity gain at JLab) GPUs will be used as compute accelerators for part or all of the cluster • JLab will again be on the Top100 list of fastest computers in the world • ~$0.3M for disk (over 250 Tbytes) • 2 phases, first to be installed in November, second in January • http://lqcd.jlab.org/
Computing and Networking Infrastructure • Helpdesk Hours during the Summer 8-12,1-4:30 • Network • Registration of computers and automatic port configuration • Wireless changes coming make it function like wired and put all unmanaged laptops on guest • E-mail list management will be moving from Majordomo to Mailman • Telecom: testing VoIP • Cyber Security • Managed desktops have resulted in reduced vulnerabilities discovered from scanning and faster remediation • Phishing/spear phishing is the currently preferred attack of choice • We do not ask for passwords or personal information in email
Management Information Systems • The online user registration form is undergoing improvements. • Remember: submit all publications related to JLab research into the publications database!
Power Outage • As part of preventing/managing potential power outages/brownouts and as we get our power under the Commonwealth of Virginia’s contract, we are participating in a power management program. • There will be a test mid day, tomorrow 11 June where farm and LQCD clusters will go off line for several hours. • This should have no effect an the network, servers, desktops, email, file access, etc. • Some lighting, HVAC, etc. will be off during the test. • Please support the test as success will lower our power bill! • If there sever electrical issues subsequently during the summer in the Eastern Mid-Atlantic, we may be asked to drop power up to 12 times. • We are not required to do so! • It is not anticipated that this will be likely.
