1. Alchemi: A .NET-based Grid Computing Framework and its Integration into Global Grids
Presenter: Yi-Wei Wu

2. Outline Introduction Architecture Design and Implementation
Alchemi API
Performance Evaluation
Related Work
Summary and Future Work

3. Introduction(1/4) Grid Computing Grid Computing for Enterprises
Grid Computing VS Super Computing
Grid Computing for Enterprises
Microsoft Windows-based grid computing infrastructure→Alchemi
Unused desktop PCs and workstation
→a virtual super computing
網格計算就是通過網際網路來共享強大的計算能力和數據儲存能力 3

4. Introduction(2/4) Alchemi Support .NET Framework
Internet-based clustering of desktop PCs
hierarchical , cooperative grids
Dedicated VS Non-dedicated
OO grid thread programming model
Web services interface supported
.NET Framework can deal with are security, heterogeneity, reliability, application composition, scheduling, and resource management 4

5. Introduction(3/4)

6. Introduction(4/4)

7. Architecture(1/5) Alchemi
Follows the master-worker parallel programming

8. Architecture(2/5)

9. Architecture(3/5)

10. Architecture(4/5)

11. Architecture(5/5)

12. Design and Implementation(1/3)

13. Design and Implementation(2/3)

14. Design and Implementation(3/3)

15. Alchemi API: Grid Thread Programming Model(1/4)
Grid Thread Model
Deal with application, thread objects and any custom objects
Without worrying about “plumbing”
Use API with C#, VB.NET, Managed C++...etc.
Grid Job Model
Grid-enabling existing applications
Cross-platform interoperability with grid middleware

16. Alchemi API: Grid Thread Programming Model(2/4)

17. Alchemi API: Grid Thread Programming Model(3/4)

18. Alchemi API: Grid Thread Programming Model(4/4)

19. Performance Evaluation(1/6)
Standalone Alchemi Grid
Pentium III 1.7GHz+512MB+Windows 2000
PC*6 and one as a Manager
Calculating 1000, 1200, 1400, 1600, 1800, 2000 and 2200 digits of Pi
Each thread calculate 50 digits

20. Performance Evaluation(2/6)

21. Performance Evaluation(3/6)
User Application
Gridbus Broker
[Linux
IBM ANU, Canberra (Linux + Globus)
IBM Adelaide (Linux + Globus)
IBM VPAC, Melbourne (Linux+Globus)
A Cluster UCSD, San Diego (Linux+Globus)
Windows Desktop Melbourne (.NET + Alchemi Manager) [maggie.cs.mu.oz.au]
Alchemi Executors
AIST, Tsukuba, Japan (Linux+Globus)

22. Performance Evaluation(4/6)
Cross-Platform Global Grid

23. Performance Evaluation(5/6)
Cross-Platform Global Grid

24. Performance Evaluation(6/6)

25. Related Work(1/1)

26. Summary and Future Work(1/2)
Alchemi is an easy-to-use Enterprise Grid framework
Offers a simple way to get up and running with a Windows-based compute Grid
Has a flexible programming model and simple tools for monitoring and administration

27. Summary and Future Work(2/2)
Inter-thread communication (MPI-like or .NET remoting-based)
Multi-clustering / federation (for decentralization and improving scalability)
Economy scheduling
Web-based tools for monitoring/admin
Workflow and other application models
Data-centric features

28. References(1/1) [1] Alchemi- .NET based Enterprise Grid
[2] User Guide for Alchemi 1.0
[3]The GRIDS Lab and the Gridbus Project

29. Thanks for your attention