?????????? GRID ??? ???????? ? ???????? ????????? ??????? ?????? - PowerPoint PPT Presentation

About This Presentation
Title:

?????????? GRID ??? ???????? ? ???????? ????????? ??????? ??????

Description:

Online reduction 107. Trigger menus. Select interesting events. Filter out less interesting ... Tier1 center for each experiment (ALICE, ATLAS, CMS, LHCb) ... – PowerPoint PPT presentation

Number of Views:21
Avg rating:3.0/5.0
Slides: 21
Provided by: ikiR
Category:
Tags: grid | atlas | online

less

Transcript and Presenter's Notes

Title: ?????????? GRID ??? ???????? ? ???????? ????????? ??????? ??????


1
?????????? GRID ??? ???????? ? ???????? ?????????
??????? ??????
  • ????? ?.?. (????? ???)
  • ??????? LCG (LHC Computing GRID) ? EGEE (Enabling
    Grids for E_science in Europe)

??????, 6 ??????? 2004 ?.
2
CERN
3
(No Transcript)
4
  • Online system
  • Multi-level trigger
  • Filter out background
  • Reduce data volume
  • Online reduction 107
  • Trigger menus
  • Select interesting events
  • Filter out less interesting

5
??????? ???????? ????????? (???) ??????
??????, ????? ????????? ? ???????
Tier1
0.1-1 ??/???
Tier2
???? ??? 5-10
6
LHC Challenges Scale (in 2006)
  • Data written to tape 40 Petabytes/Year and UP
    (1 PB 109 MBytes)
  • Processing capacity 100 - TIPS and UP
  • (1 TIPS 106 MIPS)
  • Typical networks Few Gbps Per Link
  • Lifetime of experiment 2-3 Decades (start in
    2007)
  • Users 5000 physicists
  • Software developers 300 (Four Experiments)

7
LHC Computing Model2001 - evolving
The opportunity of Grid technology
MONARC project
Tier1
8
Russian Tier2-ClusterRussian regional center for
LHC computing
Cluster of institutional computing centers with
Tier2 functionality and summary resources at
50-70 level of the canonical Tier1 center for
each experiment (ALICE, ATLAS, CMS,
LHCb) analysis simulations users data
support.
Participating institutes Moscow
ITEP, KI, MSU, LPI, MEPhI Moscow region
JINR, IHEP, INR RAS St.Petersburg PNPI
RAS, Novosibirsk BINP SB RAS
Coherent use of distributed resources by means of
LCG (EDG, VDT, ) technologies.
Active participation in the LCG Phase1
Prototyping and Data Challenges (at 5 level).
2002 2003 2004 Q4 2007
CPU kSI95 5 10-(15) 25-35 410
Disk TB 7 12-(16) 50-70 850
Tape TB (10) 20-(50) 100 1250
Network Mbps 20 50 155/ Gbps/
9
Russia in LCGhttp//www.cern.ch/lcg
  • We have started activity in LCG (LHC Computing
    GRID project) in autumn 2002.
  • Russia is joining to the LCG-1 infrastructure
    now. First SINP MSU, then JINR, ITEP and IHEP.
  • Goal to have in Russia in Q4 operational
    segment of world-wide LCG infrastructure and be
    ready to DataChallenges in 2004.
  • Manpower contribution to LCG (started in May
    2003)
  • the Agreement is under signing by CERN and
    Russia and JINR officials,
  • 3 tasks for our responsibility
  • 1) testing new GRID mw to be used in LCG
  • 2) evaluation of new-on-the-market GRID
    mw (first task evaluation of GT3 and
    WebSphere)
  • 3) common solutions for event generators
    (event data bases).

10
LHC Data Challenges
????????? ????????? ????????? (????? ?????)
?????? ??? ??????? ????????????? ?? LHC.
???????? ???????? ?? ?????? ????? ??????
???????? 100 ????? ?????? ?? ?????? ? ???? ??
??????? ???? ? 50 ????/??? !
?? ??? ?? ??????? ???????? ???????
11
LCG - Goals
  • The goal of the LCG project is to prototype and
    deploy the computing environment for the LHC
    experiments
  • Two phases
  • Phase 1 2002 2005
  • Build a service prototype, based on existing grid
    middleware
  • Gain experience in running a production grid
    service
  • Produce the TDR for the final system
  • Phase 2 2006 2008
  • Build and commission the initial LHC computing
    environment
  • LCG is not a development project
  • it relies on other grid projects for grid
    middleware development and support

12
Building a Grid
Grid
?The virtual LHC Computing organizations
Collaborating Computer Centres
Alice VO
CMS VO
13
?????? ????????????? EDG (LCG) middleware (CMS VO)
14
(No Transcript)
15
EGEE Timelinehttp//www.cern.ch/egee
16
  • Distribution of GRID Service Activities over
    Europe
  • Operations Management at CERN
  • Core Infrastructure Centres (CICs) in the UK,
    France, Italy, Russia and at CERN, responsible
    for managing the overall Grid infrastructure
  • Regional Operations Centres (ROCs), responsible
    for coordinating regional resources, regional
    deployment and support of services.

?????? CIC ???, ??? ??, ????, ????, ???
??? ROC ????, ????, ???? ???,
???? ???
17
Pan-European Multi-Gigabit Backbone (33
Countries)January 2004
Planning Underway for GEANT2 (GN2) Multi-Lambda
Backbone, to Start In 2005
18
International Committee for Future Accelerators
(ICFA)Standing Committee on Inter-Regional
Connectivity (SCIC) http//icfa-scic.web.cern.ch/
ICFA-SCIC/
ICFA SCIC Reports Networking for High Energy
and Nuclear Physics - Feb/2004 ( Doc - A4 / Pdf -
A4 ) Report on the Digital Divide in Russia -
Feb/2004 ( Doc - A4 / Pdf - A4 ) Network
Monitoring Report - Feb/2004 ( Doc - A4 / Pdf -
A4 ) Advanced Technologies Interim Report -
Feb/2003 ( Doc ) Digital Divide Executive
Report - Feb/2003 ( Doc )
19
GLORIAD Global Optical Ring (US-Ru-Cn)
Little Gloriad (OC3) Launched January 12
to OC192 in 2005
Also Important for Intra-Russia Connectivity
20
SCIC Monitoring WG Throughput Improvements
1995-2004
Bandwidth of TCP lt MSS/(RTTSqrt(Loss)) (1)
60 annual improvement Factor 100/10 yr
Some Regions 5-10 Years Behind
SE Europe and Parts of Asia May be Catching Up
(Slowly)
Progress but Digital Divide is Mostly Maintained
(1) Matthis et al., Computer Communication Review
27(3), July 1997
21
REGIONAL and INTERNATIONAL CONNECTIVITY for
RUSSIA High Energy Physics
Moscow 1 Gbps IHEP 8
Mbps (m/w), under construction 100 Mbps
fiber-optic (Q1-Q2 2004?) JINR 45
Mbps, 100-155 Mbps (Q1-Q2 2004), Gbps
(2004-2005) INR RAS 2 Mbps2x4Mbps(m/w) B
INP 1 Mbps, 45 Mbps (2004 ?), PNPI
512 Kbps (commodity), and 34 Mbps
f/o but budget is only for 2 Mbps (!)
USA NaukaNET 155
Mbps GEANT 155 Mbps basic link, plus 155
Mbps additional link for GRID projects Japan
through USA by FastNET, 512 Kbps
Novosibirsk(BINP) - KEK
GLORIAD 10 Gbps
Write a Comment
User Comments (0)
About PowerShow.com