ATLAS F2F Meeting Lugano 1102013 SL6 Migration Preparation few WNs reinstalled and used by other VOs Transition downtime announced for CEs for 2 days 23249 reinstallation of all WNs ID: 795196
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Slide1
Prague Tier-2 news
Jiří Chudoba
ATLAS F2F Meeting,
Lugano
, 1.10.2013
Slide2SL6 Migration
Preparationfew WNs reinstalled and used by other VOs
Transition
downtime announced for CEs for 2 days (23.-24.9.)
reinstallation of all WNsCEs available next day morningATLAS sw – not all releases succeeded
1.10.2013
Jiri.Chudoba@cern.ch
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Slide3ATLAS sw
https://atlas-install.roma1.infn.it/atlas_install/list.php?resource=praguelcg2&orderby=rs.date&orderdir=asc
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Jiri.Chudoba@cern.ch
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Slide4HS06 tests
Mostly increased performance with SL6.4
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Jiri.Chudoba@cern.ch
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Name
AVG
change
[%]
golias143-150
43,93
13,11
golias163-169
71,57
11,25
iberis
74,48
6,77
salix73,278,61ibis124,445,54saltix95,570,60ib199,69-2,42
ib: IBM dx360M3, 2x Xeon X5650 2.67Ghz (HT on, turbo on)
Details
: http://www.farm.particle.cz/twiki/bin/view/VS/SpecTesty
Slide52 Panda queus
http://atlas-agis.cern.ch/agis/panda_queue/detail/praguelcg2-cream1-gridatlas-pbs/full/
http://
atlas-agis.cern.ch/agis/panda_queue/detail/praguelcg2-cream2-gridatlas-pbs/full/
Can be merged to one?
1.10.2013
Jiri.Chudoba@cern.ch
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Slide6Rucio tests
prague site will take part in
Rucio
test transfers (3 T1 sites, 4-5 T2 sites)
1.10.2013
Jiri.Chudoba@cern.ch
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Slide7Networking
LHCONE since 30.6.2013
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Jiri.Chudoba@cern.ch
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small
files
(0 to 100 MB)
to praguelcg2
Slide8LHCONE
Used also for FZK-FZU
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Jiri.Chudoba@cern.ch
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Slide9Networking
FZU-FZK dedicated line upgraded to 10 Gbps 27.9.2013
1.10.2013
Jiri.Chudoba@cern.ch
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Tests with loopback
Slide10Networking
1.10.2013
Jiri.Chudoba@cern.ch
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odd
perfsonar
results
Direction
Max
throughput
(
bps
)
Mean throughput(bps)
Min throughput(bps)
Src-Dst
87.31M
11.45M
2.73M
Dst-Src3.73G852.62M11.39M
Slide11New hardware for site
Ongoing tender, deadline for offers today
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Jiri.Chudoba@cern.ch
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Slide12Other resources
Czech national supercomputing center IT4I (www.it4i.cz
), PRACE member
Small cluster available now (3000 cores)
Big cluster next year (in top500 ?)We could use spare resourcesStandard PRACE obstacleswe could negotiate outbound connectivity to predefined IP addresses
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