002134603 001__ 2134603
002134603 003__ SzGeCERN
002134603 005__ 20220810150059.0
002134603 0247_ $$2DOI$$9IOP$$a10.1088/1742-6596/664/6/062030
002134603 0248_ $$aoai:inspirehep.net:1413951$$pcerncds:CERN:FULLTEXT$$pcerncds:FULLTEXT$$pcerncds:CERN$$qINSPIRE:HEP$$qForCDS
002134603 035__ $$9http://inspirehep.net/oai2d$$aoai:inspirehep.net:1413951$$d2016-02-25T14:10:18Z$$h2016-02-26T05:00:09Z$$mmarcxml
002134603 035__ $$9Inspire$$a1413951
002134603 041__ $$aeng
002134603 088__ $$aFERMILAB-CONF-15-604-CD
002134603 100__ $$aBalcas, J$$uVilnius U.
002134603 245__ $$aPushing HTCondor and glideinWMS to 200K+ Jobs in a Global Pool for CMS before Run 2
002134603 260__ $$c2015
002134603 300__ $$a7 p
002134603 520__ $$9IOP$$aThe CMS experiment at the LHC relies on HTCondor and glideinWMS as its primary batch and pilot-based Grid provisioning system. So far we have been running several independent resource pools, but we are working on unifying them all to reduce the operational load and more effectively share resources between various activities in CMS. The major challenge of this unification activity is scale. The combined pool size is expected to reach 200K job slots, which is significantly bigger than any other multi-user HTCondor based system currently in production. To get there we have studied scaling limitations in our existing pools, the biggest of which tops out at about 70K slots, providing valuable feedback to the development communities, who have responded by delivering improvements which have helped us reach higher and higher scales with more stability. We have also worked on improving the organization and support model for this critical service during Run 2 of the LHC. This contribution will present the results of the scale testing and experiences from the first months of running the Global Pool.
002134603 540__ $$3publication$$aCC-BY-3.0
002134603 542__ $$3publication$$dThe Author(s)$$g2015
002134603 65017 $$2SzGeCERN$$aComputing and Computers
002134603 690C_ $$aCERN
002134603 693__ $$aCERN LHC$$eCMS
002134603 700__ $$aBelforte, S$$uINFN, Trieste$$uTrieste U.
002134603 700__ $$aBockelman, B$$uNebraska U.
002134603 700__ $$aGutsche, O$$uFermilab
002134603 700__ $$aKhan, F$$uQuaid-i-Azam U.
002134603 700__ $$aLarson, K$$uFermilab
002134603 700__ $$aLetts, J$$uUC, San Diego
002134603 700__ $$aMascheroni, M$$uINFN, Milan Bicocca$$uMilan Bicocca U.
002134603 700__ $$aMason, D$$uFermilab
002134603 700__ $$aMcCrea, A$$uUC, San Diego
002134603 700__ $$aSaiz-Santos, M$$uUC, San Diego
002134603 700__ $$aSfiligoi, I$$uUC, San Diego
002134603 773__ $$c062030$$n6$$pJ. Phys.: Conf. Ser.$$v664$$wC15-04-13$$y2015
002134603 8564_ $$uhttp://lss.fnal.gov/archive/2015/conf/fermilab-conf-15-604-cd.pdf$$yFERMILABCONF$$zpostprint
002134603 8564_ $$81181087$$s2289950$$uhttp://cds.cern.ch/record/2134603/files/fermilab-conf-15-604-cd.pdf$$yIOP Open Access article
002134603 960__ $$a13
002134603 962__ $$b1958286$$k062030$$nokinawa20150413
002134603 980__ $$aARTICLE
002134603 980__ $$aConferencePaper