The hardware for SCARF is purchased on a yearly basis, with each new addition added to the same set of computational job queues so as to give the users a seamless experience. This has the advantage of meaning that no large outlay of money is needed in a single year, as well as enabling us to get the best quality hardware for our money on each occasion.
The original cluster was a 256 core, 128 node cluster purchased in 2004, which has since been retired from service and completely replaced with the incremental expansions listed below.
Current Hardware Configuration
The SCARF computational cluster is comprised of a number of host groups which are listed in the table below.
|Host Group||LSF host group||CPU type and frequency||Nodes||Cores/node||Total cores||Interconnect||Memory||Total Memory||Disks|
|SCARF 17 and CLF PPG 2017||Intel E5-2650 v4 @ 2.2GHz||201||24||4824||EDR Infiniband||128 GB||25728 GB||1 x 1 TB|
|SCARF 16||scarf16||Intel E5-2650 v3 @ 2.3GHz||20||20||400||FDR Infiniband||128 GB||2560 GB||1 x 500 G|
|SCARF 15||scarf15||Intel E5-2650 v3 @ 2.3GHz||68||20||1360||FDR Infiniband||128 GB||8704 GB||1 x 500 G|
|SCARF 14||scarf14||Intel E2650 v2 @ 2.60GHz||56||16||896||QDR Infiniband||128 GB||7168 GB||1 x 500 G|
|SCARF 13||scarf13||Intel E2660 @ 2.20GHz||84||16||1344||QDR Infiniband||64 GB||5376 GB||1 x 500 G|
|SCARF 12||scarf12||Intel X5675 @ 3.07GHz||20||12||240||QDR Infiniband||48 GB||960 GB||1 x 250 G|
|SCARF 11||scarf11||Intel X5530 @ 2.40GHz||32||12||384||QDR Infiniband||24 GB||768 GB||2 x 250 G|
|SCARF 10/ Lexicon 2||scarf10 / scarf_lexicon_2_hosts||Intel E5530 @ 2.40GHz||104||8||832||DDR Infiniband||24 GB||2496 GB||2 x 250 G|
|SCARF Cluster Total||585||10280||52.25 TB|
There is an image gallery with SCARF hardware images available here.