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					                                                                uMeteo-K


                        17th APAN Meetings

Research Collaborations Among Institutions
       Employing Grid Technology
                           January 29, 2004
              Hawaii Imin International Conference Center
              University of Hawaii, Honolulu, Hawaii, USA

 Principle Investigator : Jai-Ho Oh (Pukyong National Univ, KOREA)
 Co-researchers:       In-Sik Kang (Seoul National Uuiv, KOREA)
                      Byung-Lyol Lee (NCAM/KMA, KOREA)



                                 -1-
                                              uMeteo-K

              Main Goals
Establishment of uMeteo-K, ubiquitous Korea
meteorological research cooperation system




                     -2-
                                                                      uMeteo-K


                About uMeteo-K
The concept of virtual lab.
   for interdisciplinary meteorological researches
    - Cooperation meteorological research environment (Access Grid)
    - Parallelized numerical weather/climate prediction modeling
      (Computational Grid)
    - Virtual server for large meteorological data (Data Grid)




  Grid technology is essential to accomplishment

                                -3-
                                                      uMeteo-K

        uMeteo-K Achievement
         (Apr., 2003 - present)
Establishment of virtual cooperation research environment
using Access Grid

Pilot operation of numerical weather prediction system
under Computational Grid environment

Establishment of data grid, application of virtual scenarios
for uMeteo-K



                          -4-
                                    uMeteo-K




PKNU video-conferencing & AG room
              -5-
                                                                                          uMeteo-K

                 PKNU room node AG server spec.
                    CPUs                                           Specifications          Remarks
                                          Processor    P-2.4GHz zeon dual CPU & 1GB
                                                                                          Windows XP
                                          & Memory     RAM
      Video
     device-1                                          Matrox G550 Dual AGP slot-type &    More than
                                          Video x 2
                                                       ATI 7000 32M DDR PCI slot-type      1024 x 768
                                    RAM
                                          Audio        Sound blaster Live                 Full Duplex
      Video
                                          Animation
     device-2                                          Osprey 210 PCI                     64bit support
                                    ODD   capture
  Animation                               Speaker &
                                                       5.1ch. PC speaker, Mic.
capture device                            Microphone
                                                       Sony EVI-D30 (Polycom View         independent
      Audio
      device                              Camera       Station)                           duplex video
                                    FDD                Logitech Quickcam Pro 4000         conferencing
                   Mother
                   Board
                                                       1024 x 768 x 4
                                          Monitor
                            SCSI-
                                                       (four monitors installed)
                             FDD




                                          -6-
                                                           uMeteo-K

  PKNU QuickBrigde server installed


bridge.pknu.ac.kr : uMeteo-K bridge server
- Supporting to connect PIG without Multicasting network
- Operating uMeteo-K homepage server
- Registered uMeteo-K virtual venues service (ANL)
- Operating the Quick bridge server
  (bridge.pknu.ac.kr :210.107.209.219)




                                   -7-
                                                                      uMeteo-K


uMeteo-K portable AG sever spec.
             System
             Process & memory     Dual Intel Xeon 2.4 GHz /1GB DDR /40 GB SCSI
                                  HDD / Giga Bit Ethernet
             Video Card
                                  Matrox G550 Dual AGP
                                  ATI Radeon 9000 Dual PCI
             Audio Capture Card
                                  SoundBlaster Live De
             Video Capture Card
                                  Osprey 230 PCI
             Speaker-Microphone
             Speaker-Mic.         AKG SR40 + HT40 (cordless mic. & receiver)
             Speaker              Creative INSPiRE 5.1 5700 Digital
             Camera
             Analog Camera        Sony EVI-D30
             USB Camera           Logitech Quickcam Pro4000
             Display Device
             Project              Sharp LCD Projector XG-C40
             LCD Monitor          Samsung SyncMaster 157X
             Etc
             S/W                  MS WindowsXP Professional
                                  MS OfficeXP
             Rack                 Standard Rack Cabinet 8U
             Projector Screen
             Triangle support



                -8-
                                       uMeteo-K


uMeteo-K AG instruments




   - Camera : EVI-D30 camera
   - Mic. : cordless & boundary mic.
   - Echo remove unit


                    -9-
                                                     uMeteo-K

uMeteo-K new AG configuration
                 Multicast
APAG                                   ANL     Unicast
                                             Meteorological
                                               KMA
                                              University
               KMA
               SNU
                               KISTI          Unicast
                                             Meteorological
                                               KMA
                                              Organization
                     AG
       KJIST
       KAIST                                  Unicast
                                                 Other
                              PKNU
                              PKNU             KMA
                                                Users
                              (부경대)
               KMA
                              Quick
                              Bridge


                          - 10 -
                               uMeteo-K

PKNU Venue-server registered to ANL




                - 11 -
                                                               uMeteo-K


                       Remote PPT
- Sharing presentation data and connecting with AG
- The data sharing through simple virtual host configuration




                                 - 12 -
                                                                   uMeteo-K

              VNC Server & Viewer
- VNC stands for Virtual Network Computing.
- VNC allows you to view and interact with one computer (the "server")
  using a simple program (the "viewer") on another computer anywhere.
- The two computers don't even have to be the same type OS.




                                 - 13 -
                           uMeteo-K

Sample of VNC Server & Viewer




             - 14 -
                                                                                                           uMeteo-K

    Samples of uMeteo-K AG operation
번호        일시                     회의명                             목적                                참여기관
1     2003. 4. 23.    uMeteo-K AG test            그리드사업 참여연구기관들의 네트웍 현황파악            PKNU, SNU, NCAM

2     2003. 6. 3.     uMeteo-K AG test            유니캐스팅네트웍의 활용도 재고                   부경대, 서울대, 워싱턴(수원기상대)
3     2003. 6. 20.    uMeteo-K AG test            VRVS형의 협업그리드 활용 및 원격화상회의           부경대, 서울대, 수원기상대, 기상청
4     2003. 7. 8.     그리드 연구기관 모임                 국가그리드 기반구축 참여기관의 협업시스템 점검          부경대, 서울대, 기상청, KISTI
5     2003. 7. 13.    SNU & Tokyo Univ. Seminar   서울대와 동경대 간의 기상분야 세미나 시청            서울대, 동경대, 부경대, 수원기상대
6     2003. 7. 31.    중간발표 대비 점검                  국제영상회의실 네트웍 점검 및 RPPT test         부경대, 수원기상대, 한국과학기술원
7     2003. 8. 26.    GFK 중간보고 및 발표               사업성과 중간보고                          전 국가 그리드 기반 구축 사업단
8     2003. 8. 27.    제 16차 APAN 국제회의             아시아 태평양 네트웍분야의 신기술 및 동향파악          부경대, 수원기상대, 기상청, 미국, 독일
9     2003. 9. 3.     한국과학기술원 홍보자료 제작             한국과학기술원 홍보용 책자 및 동영상 제작            부경대, 한국과학기술원
10    2003. 9. 25.    CAgM/ETSIDN 회의              농업기상분야 관계자 회의                      부경대, 수원기상대, 연세대
11    2003. 10. 23.   부산외국어대 국제통역원 강의             AG를 이용한 국제통역의 새로운 가능성 제시           부경대, 부산외국어대학교
12    2003. 11. 9.    uMeteo-K 8th Workshop       국가그리드 기반사업 계획 수립 및 추진전략 회의         부경대, 성균관대, 서울대, 기상청
13    2003. 11. 21.   2th 레이더 전문가 협의회             국내 기상 레이더 전문가 회의                   부경대, 경북대, 기상청
14    2003. 12. 1.    Winter G.F.K. Workshop      Grid 관련사업 평가 및 시연                  KISTI, PKNU, SNU, NCAM, SKKU

15    2003. 12. 18.   GLOBEC Workshop             워크샵 참가 및 발표                        NFRDI, KSITI, PKNU, JAPAN

16    2003. 12. 23.   슈퍼컴퓨팅 성공사례발표                정통부 차관 초청 슈퍼컴퓨팅 성공사례 시연            PKNU, SNU, NCAM, KISTI

17    2004. 1. 6.     초청세미나                       일본해양과학기술청의 연구분야 소개                 PKNU, JAPAN Frontier Institution

18    2004. 1. 9.     Workshop on Grid-tech.      튜토리얼 개최 및



Seminar : international (4) + domestic (14)                             Co-work and general use : 60


                                                       - 15 -
                        uMeteo-K

uMeteo-K AG operation




         - 16 -
                                                     uMeteo-K




Meteorology Session on 16th APAN meeting
Marriot Hotel, Busan, Korea <Aug. 26~27, 2003>



                                            - 17 -
2003 uMeteo-K




         2003 Grid Forum Korea Winter meetings at Chosun Hotel, Seoul <Dec. 1~2, 2003>


                                           - 18 -                                 ICSYM/PKNU
2003 uMeteo-K




                GLOBEC workshop at NFRDI, Korea <Dec. 17~18, 2003>


                                     - 19 -                          ICSYM/PKNU
2003 uMeteo-K




            Tera Computing and Network Demonstration, KISTI <Dec. 23, 2003>


                                       - 20 -                                 ICSYM/PKNU
2003 uMeteo-K




        Workshop on Grid Technology for Environmental study at PKNU <Jan. 8~10, 2004>


                                          - 21 -                                ICSYM/PKNU
                                                                       uMeteo-K

uMeteo-K AG 2.0 tutorials




uMeteo-K meeting & tutorials at PKNU, Busan, Korea <Jan. 8~10, 2004>


                             - 22 -
                                                                                                         uMeteo-K

Costs & Benefits Analysis for uMeteo-K AG
번호       기간                   회의명                         출장지 회의방식 (단위 : 원)                           AG 방식
1    2003. 4. 23.    uMeteo-K AG test         국내전문가ⅹ2인ⅹ2일 = 400,000 +α
2    2003. 6. 3.     uMeteo-K AG test         국내전문가ⅹ2인ⅹ2일 = 400,000 +α
3    2003. 6. 20.    uMeteo-K AG test         국내전문가ⅹ3인ⅹ2일 = 600,000 +α
4    2003. 7. 8.     그리드 연구기관 모임              국내전문가ⅹ8인ⅹ2일 = 1600,000 +α
5    2003. 7. 13.    SNU & Tokyo Uni. 세미나     국내전문가ⅹ8인+국외전문가ⅹ8인 = 8,800,000 +α
6    2003. 7. 31.    중간발표 대비 점검               (국내전문가ⅹ1인+수행연구원ⅹ2인)ⅹ2일 = 300,000 +α      AG 구축 비용
7    2003. 8. 26.    GFK 중간보고 및 발표            (국내전문가ⅹ1인+수행연구원ⅹ2인)ⅹ2일 = 300,000 +α
                                                                                       - AG 서버
8    2003. 8. 27.    16th APAN 국제회의           (국내전문가ⅹ5인)ⅹ6일+국외전문가ⅹ5인 = 8,000,000 +α      4,000,000 (주변기기포함)
                                                                                       - 고화질 디스플레이 패널
9    2003. 9. 3.     KISTI 홍보자료 제작            (국내전문가ⅹ5인+수행연구원ⅹ3인)ⅹ2일 = 800,000 +α        4,000,000
10   2003. 9. 25.    CAgM/ETSIDN 회의           국외전문가ⅹ5인+국내전문가ⅹ3인 = 7,800,000 +α         - 영상회의 전용카메라
                                                                                         8,000,000
11   2003. 10. 23.   부산외국어대학교 강의              국내전문가ⅹ1인+수행연구원ⅹ2인 = 200,000 +α
12   2003. 11. 9.    uMeteo-K 8th Workshop    (국내전문가ⅹ6인+수행연구원ⅹ4인)ⅹ3일 = 2,700,000 +α    국제영상회의실 시설설치 비용
13   2003. 11. 21.   2th 레이더 전문가 협의회          (국내전문가ⅹ4인+수행연구원ⅹ4인)ⅹ2일 = 1,200,000 +α    : 15,000,000

14   2003. 12. 1.    Winter G.F.K workshop    (국내전문가ⅹ1인+수행연구원ⅹ3인)ⅹ3일 = 750,000 +α
15   2003. 12. 18.   GLOBEC Workshop          (국내전문가ⅹ1인+수행연구원ⅹ2인)ⅹ2일 = 400,000 +α
16   2003. 12. 23.   슈퍼컴퓨팅 성공사례발표             (국내전문가ⅹ1인+수행연구원ⅹ2인)ⅹ2일 = 400,000 +α
17   2004. 1. 6.     초청 세미나                   국외전문가ⅹ1인=1,000,000 +α
18   2004. 1. 9.     Workshop on Grid-tech.   (국내전문가ⅹ6인+수행연구원ⅹ6인) ⅹ3일 =2,700,0000 +α


           Benefits/Costs                                  USD 32k +α                             USD 27k
                   국내 전문가1인=100,000원, 국외전문가1인=1,000,000원, 수행연구원1인=5만원

                                                           - 23 -
                                                                                        uMeteo-K

 Differences between AG 1.2 and AG 2.0
1.   Easy Venue Server configuration and usage
2.   Instead of PIG, using individual Venue Server
3.   Complexity about Certification Authority
4.   Sharing Data, Sharing Application, Sharing Service enforced
5.   GUI
6.   Service total Management about Access Grid utility

                        Data sharing



                                                 client                        client
                     bridge                                direct access
                      Remote controll
            client                      server   server                       server

                  Manage total applications            Manage total applications
                 through different programs             through one program




                        AG 1.2                               AG 2.0


                                              - 24 -
                                   uMeteo-K

Operate AG 2.0 – (1) Video Conferencing




                 - 25 -
                                uMeteo-K

Operate AG 2.0 – (2) Sharing Data




              - 26 -
                                uMeteo-K

Operate AG 2.0 – (3) Data Download




               - 27 -
                                uMeteo-K

Operate AG 2.0 – (4) Shared Brower




               - 28 -
                                   uMeteo-K

Operate AG 2.0 – (5) Shared Presentation




                  - 29 -
                                                  uMeteo-K

              Client Services & Applications
•   Enable face-to-face meeting activities
•   What can be done:
      – Sharing Data
      – Shared Applications
      – Text chat
•   Applications:
      – Shared Presentation
      – Shared Web browser
      – Whiteboard
      – Voting Tool
      – Question & Answer Tool
      – Shared Desktop Tool
•   Integrate legacy single-user apps
•   Communicates media addresses to
    node service




                                         - 30 -
                                                                  uMeteo-K

             uMeteo-K CG Testbed
• uMeteo-K computational grid test-bed
 (Two clusters utilized and each cluster has 4 nodes)
  < A node’s specification>
              CPU                        Pentium 4 1.8 Ghz

             RAM                           1G SDRAM

             HDD                            EIDE 40G

             VGA                                No
                                Internal : 10/100 Fast Ethernet
            Network
                                External : KOREN




                                - 31 -
                                                                                                       uMeteo-K

uMeteo-K CG Testbed Configuration
                                                                                                                 UPS
   NAS storage sever



                                                            4 nodes ( single CPU ) cluster




NAS storage sever




10/100 switch hub      4 nodes ( single CPU ) cluster

                                                                                             Monitoring system

                       Electrometer            KOREN              10/100 Ethernet



                                                   - 32 -
                                                                  uMeteo-K

Globus linkage between testbed clusters

                  Master A                     Master B
                                       CA-B

                             CA-A


     slaves             PBS                PBS               slaves


   • Independent simple CA has installed at each master node.
   • Simulating the severe weather, typhoon Mae-mi
   • A group of slave nodes is controlled by each master node’s PBS
    scheduler

                                 - 33 -
                                                               uMeteo-K

    CA information of each cluster
- CA-A
subject : /O=uMeteoK/OU=pknuGB_A01/OU=pknu.ac.kr/CN=globus/CN=proxy
issuer : /O=uMeteoK/OU=pknuGB_A01/OU=pknu.ac.kr/CN=globus
identity : /O=uMeteoK/OU=pknuGB_A01/OU=pknu.ac.kr/CN=globus
type : full legacy globus proxy
strength : 512 bits
path : /tmp/x509up_u533
timeleft : 7:52:58

- CA-B

subject : /O=uMeteoK/OU=pknuGB_B01/OU=pknu.ac.kr/CN=globus05/CN=proxy
issuer : /O=uMeteoK/OU=pknuGB_B01/OU=pknu.ac.kr/CN=globus05
identity : /O=uMeteoK/OU=pknuGB_B01/OU=pknu.ac.kr/CN=globus05
type : full legacy globus proxy
strength : 512 bits
path : /tmp/x509up_u535
timeleft : 7:52:43

                               - 34 -
                           uMeteo-K


uMeteo-K CG testbed monitoring




             - 35 -
                                                               uMeteo-K

 MM5 (Mesoscale Model Version 5)

        Non-hydrostatic NWP model developed by PSU/NCAR

           KMA’s operational model for short-term forecast

         Parallel NWP model for realtime short-term forecast




                              - 36 -
                                                          uMeteo-K


 Precipitation, MSLP & Wind for 24 HRs
       Sep. 12, 2003 09:00 LST~ Sep. 13, 2003 09:00 LST




      Precipitation                       MSLP and Wind

                           - 37 -
                                                              uMeteo-K


 Parallel MM5 Benchmarks with GLOBUS

  Average job waiting time (including CA) : 25 sec
  The required time for 3600 sec (1 hour) model integration

                MPICH                       35 sec

              MPICH-G2                      42 sec


  The required time for 86400 sec (1 day) model integration

                MPICH                    10 min 38 sec

              MPICH-G2                   12 min 47 sec

              Single CPU                 67 min 12 sec



                            - 38 -
                                                                                uMeteo-K

         Connecting to KISTI testbed
  - CA infomation
subject : /O=Grid/O=Globus/OU=pknu.ac.kr/CN=cgtest/CN=proxy/CN=proxy
issuer : /O=Grid/O=Globus/OU=pknu.ac.kr/CN=cgtest/CN=proxy
type : full
strength : 512 bits
path : /tmp/x509up_p2358.fileEaIRDc.1
timeleft : 7:28:17
  - Conneting to venus.gridcenter.or.kr using gsissh
gsissh -p 2222 venus.gridcenter.or.kr

  - File transfer to venus.gridcenter.or.kr using gsincftpput and gsincftpget
gsincftpput -p 2811 venus.gridcenter.or.kr ./ ~/MM5.tar
gsincftpput -p 2811 venus.gridcenter.or.kr ./ ~/CReSS.tar




                                       - 39 -
                                                                      uMeteo-K

   Running weather numerical model
• It is successful to compile MM5 ( Mesoscale Model version 5 ) and
   CReSS ( Cloud resolving Storm Simulator)
• It is successful to run CReSS, but fail to run MM5 because testbed is not
   supported some library and routine.
- rsl file to run CReSS
 +
( &(resourceManagerContact="venus.gridcenter.or.kr")
   (count=8)
   (label="subjob 0")
   (environment=(GLOBUS_DUROC_SUBJOB_INDEX 0)
             (LD_LIBRARY_PATH /usr/local/gt2/lib/))
   (directory="/home/ngrid/ngrid017/CReSS1.3m")
   (executable="/home/ngrid/ngrid017/CReSS1.3m/run.sh")
)
( &(resourceManagerContact="jupiter.gridcenter.or.kr")
   (count=8)
   (label="subjob 8")
   (environment=(GLOBUS_DUROC_SUBJOB_INDEX 1)
             (LD_LIBRARY_PATH /usr/local/gt2/lib/))
   (directory="/home/ngrid/ngrid017/CReSS1.3m")
   (executable="/home/ngrid/ngrid017/CReSS1.3m/run.sh")
)



                                                 - 40 -
                                                                  uMeteo-K

 CReSS (Cloud Resolving Storm simulator)
          Research & development in Nagoya Univ., Japan

           Non-hydrostatic compressible dynamic model

              Meso-to-cloud scale simulation system
       Inclusion of a detailed cloud . microphysical processes


                It takes many times for simulation.

                 Performance of parallel processing




                                - 41 -
                                                  uMeteo-K


 Downburst Simulation for 21000 sec.




           < Wind vector in y section [m s-1] >


                         - 42 -
                                                                         uMeteo-K


   Parallel CReSS Benchmarks with GLOBUS

The required time for 21000 sec (1 hour) model integration in uMeteoK Testbed

       PKNU cluster 8 nodes (MPICH)              15 min 49 sec
       PKNU A 4 nodes + PKNU B 4 nodes           16 min 39 sec

The required time for 21000 sec (1 hour) model integration in KISTI Testbed

                  Jupiter 8 nodes                16 min 39 sec
                  Venus 8 nodes                  15 min 35 sec
          Jupiter 4 nodes + Venus 4 nodes       715min 13 sec
          Jupiter 8 nodes + Venus 8 nodes




                                     - 43 -
                                                                         uMeteo-K

               Data Grid in Globus Tools
 Data Transport & Access
 GASS
  - Simple, Multi-protocol file transfer Tools, integrated with GRAM
 GridFTP
 - Provides high-performance, reliable data transfer for modern WANS


   Data Replication and Management

 Data Replica Catalog

 - Provides a catalog service for keeping track of replicated datasets

 Replica Management

 - Provides services for creating and managing replicated datasets



                                            - 44 -
                                                                                   uMeteo-K

  Data grid for climate prediction
 Data transportation                    Atmospheric e-science Data Grid
Wu-Ftp Connecting
                                                                    Model output



   NCEP                                        KMA                             KMA
                         Model output                            Forecast
                                                                  output
                                                                            Supercom

                                 Data input         Data input
          Model output
                                              Forecast
                                               output
NASA                     SNU                                           PKNU
                                               Forecast
                                                output
          Observation
             data


                                               KISTI
                         Model output
  NASA                                        Supercom




                               - 45 -
                                                                                              uMeteo-K

    Hardware structure of Data-GRID
   Seoul National University                                                  neosky15
                                                       KOREN
                                                      Network
                               Disk Raid                          Linux server
                                 2.3TB                            Intel Dual CPU
cdldata
                                                                                              Disk Raid
                                                                                                1.2TB
                                                                    Korea Meteorology
Linux server                                                          Administration
Intel Dual CPU


                               Disk Raid                                   KOREN
                                 1.8TB                                    Network
cpsdata

                                                         KOREN
Linux server                                            Network
Intel Dual CPU                                                                                 Disk Raid
                                                                                                 500G

                               Disk Raid
 climate
                                 500G                                              pknuGB01
                                           Pukyong National
                                              University
Linux server                                                        Linux server
Intel Dual CPU                                                      Intel Dual CPU




                                             - 46 -
                                                                                  uMeteo-K

                       Overview Data grid
      ldapadd               Adding the uMeteoK-DataGrid to LDAP server

      ldapadd                   Adding the Test-catalog to LDAP server
   Globus-replica-
   management               Creating the Test-Collection in the test-catalog

   Globus-replica
   -management            Register location for test-collection (snu-kma-pknu)

    Globus-replica
-Management& catalog        Create & Register & list file-list for all location

   Globus-replica
   -management
                                   Copy file snu->kma or snu->pknu

   Globus-replica
      -catalog
                            List all location where some files can be found

   Globus-replica
   -management
                                       Delete the files & location

   Globus-replica
   -management
                                Delete the Test-collection & Test-catalog

                                       - 47 -
                                                                                      uMeteo-K

                             Grid FTP
                             Globus Tool kit
                                                              Data grid middleware



                            Grid-Proxy-Init
                                                                 User certification


                                                           GSINCFTP
               Grid-ftp


                                         Using ‘NCFTP’ Programs
Using ‘globus-url-copy’                  reliable and re-startable data transfer
Secured ftp                              parallel and Striped Data transfer
Including Globus Tool kit                Automatic negotiation of TCP buffer/window sizes




                            Data transfer &
                               Access



                                       - 48 -
                                                                                      uMeteo-K

           Data Grid in Globus Tools
 Globus Toolkit install-process
Grid Software : Globus 2.4 Toolkit
CA Software : SimpleCA

                                                                         Grid-proxy-init


                                                                Globus-personal-gatekeeper


                                                                          Globusrun


                                                                  Result of run /bin/data




It appear that Test Result of Globus Software(globusrun) is successful



                                        - 49 -
                                          uMeteo-K

Data Grid in Globus Tools
           GSINCFTP Testing - Successful

                         SNU-SNU
                    - Cdldata  climate




                         SNU-KMA
                   - Cdldata  Neosky15




                         SNU-PKNU
                   - Cdldata  PknuGB01




          - 50 -
                                                                                   uMeteo-K

                  Replica management
      Characteristic of Replica management


- Layer on other Grid services GSI, transport, information service
- Use LDAP as catalog form at and protocol, for consistency
- Use as a building block for other tools


     Replica catalog


- LDAP object classes for representing logical-to physical mapping in an LDAP catalog
- Low-level replica catalog
  * globus_replica_catalog library
  * manipulate replica catalog
-High-level replica catalog
  * globus_replica_manager library
  * Combines calls to file transfer operation calls to low-level API functions




                                            - 51 -
                                                                                                          uMeteo-K

                      Replica Catalog Structure
                                                 Replica catalog



            Logical Collection                                       Logical Collection             File: AMIP2 Jan 1997
                                                                                                    File: AMIP2 Jan 1997
              Global & regional                                        Global & regional
                                                                                                            …
              Observation data                                          Prediction data


                 File: NCEP Jan 1997
                 File: NCEP Jan 1997
                         …
                                                                                    Logical File parent

  Logical Collection                     Logical Collection

     Global & regional                     Global & regional                       Logical File        Logical File
     Observation data                      Observation data                          Jan 1997
                                                                                     Logical File        Jan 1999 File
                                                                                                          Logical
                                                                                       Feb 1997             Jan 1999
       File: NCEP Jan 1997                   File: NCEP Jan 1997
       File: NCEP Jan 1997                   File: NCEP Jan 1997
                 …                                     …
         Protocol : gsi-ftp                    Protocol : gsi-ftp
Address: gsi-ftp://cdldata.snu.ac.kr   Address: gsi-ftp://cpsata.snu.ac.kr
             /cdldata1                             /cdldata2




                                                           - 52 -
                                                             uMeteo-K

Data Replication Management Test
                           Location A
                 host name : climate.snu.ac.kr
                  Slapd & Grid-FTP running
             Logical Name : climate prediction A
               Location : /home/globus/data
               List of file : climatePrediction 1
                      climatePrediction 2
                      climatePrediction 3

      Copy         Delete            Copy           Delete

                           Location B
                 host name : cdldata.snu.ac.kr
                  Slapd & Grid-FTP running
             Logical Name : climate prediction B
               Location : /home/ymyang/data
               List of file : climatePrediction 4
                      climatePrediction 5
                      climatePrediction 6

                            - 53 -
                                                                                   uMeteo-K

               Data Grid in Globus Tools
Scenario for globus replica service – between ‘cdldata’ of SNU and ‘pknuGB01’ of PKNU




                                                        Running Shell Script
                                                     for globus replica services




                                                   In the Copy command, there is some
                                                    Problem that it is available to copy
                                                       a file from SNU to PKNU, but it
                                                   Occurred error when doing opposite.
                                                     We suppose that it result in from
                                                            Firewall policy of PKNU
                                                              Computing Agency




                                         - 54 -
                                                                         uMeteo-K

                              In the future
•Multicasting network might be necessary for duplex Access Grid.
 => Currently, ICSYM/PKNU and NCAM/KMA within uMeteo-K used unicast quick
    bridge network (KISTI supported)

•Enhancement of display panel and improvement of sound quality might be necessary.
 =>Update to AG version 2.0

•An urgent repair might be necessary for the failure on the common DNS
  identification among members of uMeteo-K

•Addition to uMeteo-K CG testbed nodes

• Between SNU and KMA, we is about to testing Globus replica service

• Application of realistic scenarios for uMeteo-K

                                         - 55 -
                                                uMeteo-K

Future plan of uMeteo-K

  NDP Grid     Hydrologic Grid    CAgM Grid




 Ocean Grid                      Environ Grid
                uMeteo-K


 Energy Grid       N*Grid         APCN Grid




                   - 56 -
                           uMeteo-K




Thank you for your attention!




             - 57 -

				
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