1. Sun Gongxing, IHEP, Beijing
Grid Activity in China
Sun Gongxing, IHEP, Beijing

2. The Grid Projects in China
• Vega Grid Project ( ICT, MOST)
• National High Performance Computing
Environment funded by 863 program
(Many participants, MOST)
• Scientific Data Grid. (CAS, MOST)
• HEP data grid.(IHEP)
• Grid infrastructure building (MOE)

3. Overview of China’s Grid Project
Build a superserver for major grid sites.
Build a few of HPC centers.
Develop system software for the Grid system.
Develop demo applications on the Grid.
Build 2Gbps interconnection among 100 university.

4. • Design and implement Grid-level software.
The Vega Project
1. Design goals:
• Design and implement Grid-level software.
• Build a national-scale infrastructure supporting HPC.
• Develop application running on testbed.
2. Grid-oriented superservers—Dawning 4000, 5000,etc.
3. Service Grid

6. Stress Distribution of 3800TEU

7. 500hPa Contours in Weather Forecasting

8. The Vega Grid Topology
It is Router-centered structure:

9. The Vega Grid Computing Protocol

10. The Vega OS Vega OS overview client commands.
1, A user-level middleware running on client machine
• Vega GOS constructed by 2 components: GOS and
gnetd
- GOS is a daemon running on client machine.
- gnetd is a daemon on grid server response to
client commands.

11. gridclose(): close a connected grid. ……
Grid process and Grid thread
- Grid process is a unit for managing the whole
resource of the Grid.
- Grid thread is a unit for executing computation on
the Grid.
2, Vega APIs introduction
Vega GOS APIs
- GOS APIs for application developers
grid(): constructs a Grid process on client machine.
gridcon(): grid process connects to Grid system.
gridclose(): close a connected grid. ……

12. • gnetd APIs for service developer on Grid servers
- grid_register(): register a service to Grid.
- grid_unregister(): unregister a service.
…….

13. The Vega Grid Batch System
- A GOS-based application.
- No central control
- shell commands:
> gsub
> gstat
> gkill, ……

14. - All kinds of resources registered in Grid.
> Computational resources: cycles, mem, disk,
networks……
> software: DB, CAD……
> services: ftp, http, mail……

15. Global Batch System in Vega Grid

16. Travel-An Online Transaction system
An online transaction system----travel in China
GOS-based application
4 different basic services registered in the Grid.
* Wheather forecasting
* airline ticket booking
* sight spot ticket booking
* charging
- Putting these 4 services into an application

19. The National HPC Project
Overview
- Set up 9 HPC sites across China
- Interconnected these 9 sites with available
networks ( Cernet & NSTTet)
- equipped each site with
Dawning 2000/3000, Galaxy 3(20Gflops),
Sunway 1(460Gflops), PC-cluster(8Gflops)

21. Overview of the Grid System Software
A function layer on top of node OSs.
Management of resources, users and tasks.
Authentication and authorization.
Hardware-enhanced encryption.
Web –based user interface.

22. The Grid System Software

23. User Management

24. Job Management(submit)

25. Resource Management (Find a User)

26. The Grid System Monitoring

27. The Grid Utilities

28. The Grid Applications Weather forecasting.
Petroleum reservoir simulation.
Bio-information database and applications.
Numerical wind tunnel simulation.
Automobile collision simulation.
Ship structure analysis.
National scientific databases and applications.
Digital library.

29. Internet NHPCE Gigabit IP Network Audio Notebook HPC BP, Mobile phone
Video Camera
Tel.
Game TV
DVD PC
Internet
Gigabit IP Network
Node DB
Info lib.
Instr.
NHPCE

30. International Cooperation
Joint research supported by European and China.
Source sharing
- Computing power
- Database
- Software tools
- Application software

31. The Scientific Data Grid Project
Build on the top of scientific databases.
Belong to CAS, but open to the world.
Plan to provide service in

32. Scientific Database(SDB)
SDB funded by CAS since 1986.
SDB is a collection of multiple disciplinary databases, including chemistry, biology, geography, astronomy, ecology, etc.
By 2005, there are
member institutions across China.
databases which is distributed and
heterogeneous.
- 10TB+ data volume size.

33. Why do SDG? Resource level—sharing and development.
- make data more accessible.
- data integration
- and more easy to do: data->information->knowledge.
Application level—emerging applications
- can do what we can not do before.
- cross multiple databases/multiple disciplines.
- require more resources ( cycles, bandwidth,
instrument, etc.)

34. Tasks Build testbed Middleware - information service Applications
- one data center
- and three sub data center.
Middleware
- information service
- security
- user interface
Applications
- Chemistry/Geo-science/astronomy/biology…

35. Data Center (CNIC) Cluster 16 nodes 15TB
Bio Center Cluster 8 nodes 1-2TB Beijing
SDG Resources: TB PC Clusters CSTNET
1000M
Data Center (CNIC) Cluster 16 nodes 15TB
1000M
Chemistry Center Cluster 8 nodes 1-2TB Shanghai
155M
Geo Center Cluster 8 nodes 1-2TB Beijing

36. Supercomputers at CNIC ~2 TFLOPS
Mass Storage
Database Application Server
MDS Server
CA Server
Portal Server
SDG Data Center
Supercomputers at CNIC ~2 TFLOPS

37. Grid Middleware Application GAPI xMDS DRB UAI GSI Local DBMS
applications
xMDS
GAPI
app-oriented, unified program interface
DRB
coordinated access to multiple data resources
UAI
universal access interface to single data resource
GSI
Local DBMS
local data management system, could be DBMS or file system
databases

38. Projects CAS The tenth five-year program (2001—2005) (37MRMB).
863 program (MOST)
A special program (proposed).

39. Collaboration
PRAGMA
APGrid
SDSC
KISTI
ASCC
Texas A&M Univ.

40. HEP Data Grid Currently funded by IHEP, CAS.
Build a BES VO in IHEP campus network environment for BES experiment.
Probably Add to CMS and Atlas Vos in the future for CMS and Atlas collaborations.
ARGO-YBJ VO for ARGO-YBJ experiment.

41. The HEP Grid Testbed Topology
GIIS
Two 6 CPUs PC-FARM
GRIS
GRIS
Condor
PBS

42. Current Main Tasks
Large Scale Linux Configuration and maintenance—LCFG.
Authentication/authority—GSI.
Resource Information Management—MDS.
Grid Resource Allocation Management—GRAM.
Data Replication Management—GDMP.
HEP analysis software gridifying—Appln.

43. The Future Work
Build IHEP campus Grid computing environment sharing about ten PC-Farms.
Promote collaboration with National Grid Projects and international Grid communities
Make effort to propose Regional Center 2 project in China.