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Preparation of KIPT (Kharkov) computing facilities for CMS data analysis. L. Levchuk Kharkov Institute of Physics and Technology (KIPT), Kharkov, Ukraine. WLCG infrastructure of the CMS experiment (CMS computing model) KIPT T2 center (T2_UA_KIPT): status and prospects Summary.

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preparation of kipt kharkov computing facilities for cms data analysis

Preparation of KIPT (Kharkov) computing facilities for CMS data analysis

L. Levchuk

Kharkov Institute of Physics and Technology (KIPT), Kharkov, Ukraine

slide2
WLCG infrastructure of the CMS experiment (CMS computing model)
  • KIPT T2 center (T2_UA_KIPT): status and prospects
  • Summary

L.Levchuk, NEC'09, Varna, Bulgaria

cern acquisition first pass reconstruction storage distribution
CERN: acquisition, first-pass reconstruction, storage & distribution

1.25 GB/sec (heavy ions)

L.Levchuk, NEC'09, Varna, Bulgaria

3

Ian.Bird@cern.ch

slide4
CMS Physics Goals

CMS is expected to shed light on

  • origin of particle masses (search for Higgs boson for all possible MH: does it really exist?)
  • origin of “dark matter” in the Universe (search for SUSY signals)
  • origin of asymmetry matter/antimatter in the Universe (study of CP violation in B decays)
  • whether new states of hadronic matter exist (study of heavy ion collisions)
  • if any “exotica” can emerge at the TeV (1012 eV)) scale

L.Levchuk, NEC'09, Varna, Bulgaria

slide5

CMS Computing Model

CMS trigger

T0_CH_CERN

RAW

~1-3 MB/evt ~100 evt/s

L.Levchuk, NEC'09, Varna, Bulgaria

slide7

KIPT CMS Computing Facility

Storage Element (SE, SRM):

12 nodes (24 CPU’s Intel Xeon EM64T: 203.2 + 42.8 GHz)

11SATA RAID5 (400 GB disks)

+1 SATA RAID6 (1.0 TB disks)

SRM space:

~ 50 TB(currently), upgrade to

~120 TBby LHC startup (end of 2009)

Type:DPM (SLC4)

Worker Nodes (WN):

68x86-64 CPU cores

(Intel Xeon EM64T 3.4 GHz & E5420 2.5GHz), 0.5 kHEPSPEC06

HEPSPEC06 Benchmark Results:

L.Levchuk, NEC'09, Varna, Bulgaria

slide8

KIPT CMS Computing Facility

Year

2001 – RH Linux cluster of a few dual PIII nodes

from 2002 on – participation in CMS Monte Carlo production

2003 – Grid middleware (LCG2) deployed for the first time

from 2005 on– the site registered in WLCG (Kharkov-KIPT-LCG2)

from 2007 on– SLC cluster built on x86-64 CPU platform

2008– CMS software (CMSSW & PhEDEx) deployment; site registration in CMS SiteDB (T2_UA_KIPT)

2009 (June)– successful commissioning of T2_UA_KIPT

2009 (July) – T2_UA_KIPT is in “Production” (“Ready” > 80% of time) !!!

Up to now, the KIPT computing facility remains to be

- the only active WLCG/EGEE site of Ukraine;

- the only CMS RDMS T2 site, which is non-”_RU_”

L.Levchuk, NEC'09, Varna, Bulgaria

conditions for site readiness
Conditions for site ‘Readiness’

The CMS site readiness takes into account several sources of information

to define whether a site is in a good status:

site availability according to the CMSSite Availability Monitor (SAM) tests

16 CMS-specific critical tests of CE, SRM (SE) and CMS software in addition to “routine” WLCG SAM tests; daily SAM availability must be 80%

 fraction of successful jobs submitted by theJob Robot

automatic submission and management of“fake”CMS analysis jobs via WLCG (using CRAB) (typically, 6×100 jobs/day); daily JR efficiency must be 80%

 number of operational links connecting the site with other sites

number of commissioned links TO Tier-1 sites ≥ 2

(to commission one such link, site has to sustain ≥ 5 MB/s of LoadTest during 24 hours)

number of commissioned links FROM Tier-1 sites ≥ 4

(to commission one such link, site has to sustain ≥ 20 MB/s of LoadTest during 24 hours)

L.Levchuk, NEC'09, Varna, Bulgaria

slide10

04 Sep 2009 12:41

http://dashb-ssb.cern.ch/dashboard/request.py/siteview?

L.Levchuk, NEC'09, Varna, Bulgaria

slide11

Commissioning of first 6 T2_UA_KIPT uplinks

LoadTest from: CH_CERN ES_PIC DE_FZK IT_CNAF US_FNAL FR_CCIN2P3

L.Levchuk, NEC'09, Varna, Bulgaria

slide12

Commissioning of first 6 T2_UA_KIPT uplinks (II)

33.02 TB

L.Levchuk, NEC'09, Varna, Bulgaria

internet connectivity

Frankfurt

DE

Moscow

RU

10 Gbit/s

10 Gbit/s

Kharkov

L’vov

Kiev

KIPT

Internet Connectivity

Network backbone for academic institutes of Ukraine

Project has been completed in 2007 – 2008 (UARNET)

Connectivity of NSC KIPT -- 2 Gbit/s

Connectivity of Kharkov-KIPT-LCG2 (T2_UA_KIPT) -- up to 1 Gbit/s

L.Levchuk, NEC'09, Varna, Bulgaria

slide14

T2_UA_KIPT

01 September 2009

T2_RU_SINP

T2_RU_JINR

T2_RU_ITEP

T2 site quality ranking in August 2009

L.Levchuk, NEC'09, Varna, Bulgaria

http://lhcweb.pic.es/cms/SiteReadinessPlots

slide15

Activity of CMS RDMS T2 sites in August 09

ITEP

JINR

SINP

KIPT

IHEP

RC KI

Units:

average number of CMS jobs at

a given moment

of the day

INR

-- MC Production

-- Data Analysis

Thanks to Peter Kreuzer

L.Levchuk, NEC'09, Varna, Bulgaria

slide16

Resources: available vs. needed

For 2-nd half of 2009: storage upgrade up to 120 TB

Major upgrade of CPU capacity is planned for 2010

No problem to have connectivity of 1 Gbit/s right now

L.Levchuk, NEC'09, Varna, Bulgaria

slide17

SUMMARY

  • Preparation of KIPT WLCG infrastructure for CMS data analysis is in good progress
  • Site T2_UA_KIPT is commissioned (‘Ready’)
  • Site T2_UA_KIPT is stable (‘Ready’ >80% of time)
  • Upgrade of hardware to fit CMS Computing TDR requirements is still needed

L.Levchuk, NEC'09, Varna, Bulgaria