Computer Power

• SPECInt 2000
  • Phase I
  • Phase II
  • Phase III

• SPECInt 2006
  • Phase I and II: convertion factor 2000/2006 = 170
  • Phase III

• The unit of computing power kSI2K corresponds to one Intel Xeon 2.8 GHz processor: http://www1.jinr.ru/Pepan/2005-v36/v-36-1/pdf/v-36-1_02.pdf

• Giga Flop: Xeon processors execute 2 floating point operations per clock cycle. A Xeon with 2.4 GHz is able to execute up to 4.8 billions of floating point operations per second: 2 operations / clock cycle X 2.4 x 10^9 clock cycles / sec = 4.8 GFlops

• Compare with the US CMS Tier-2 site capacity: http://t2.unl.edu/uscms/current-us-cms-tier-2-site-capacity-1-24-07/

• See also the LHC Computing Grid Tier 2 Centres: http://lcg.web.cern.ch/lcg/C-RRB/Tier-2/

CMS Tier-1

• CMS Technical Design Report CERN-LHCC-2005-023 (CMS TDR) 20/June/2005

• Computing
  • WLCG: http://lcg.web.cern.ch/LCG/
    • Management: http://lcg.web.cern.ch/LCG/proj_structure.htm
    • Resources: http://lcg.web.cern.ch/LCG/resources.htm (see tables)
  • CMS Computing: http://cms.cern.ch/iCMS/jsp/page.jsp?mode=cms&action=url&urlkey=CMS_COMPUTING
    • Organization: http://lucas-nice.web.cern.ch/lucas-nice/cpt/2008-02-07Offline-Computing-Organigram.pdf