Commodity Web-Server based Metacomputer Capabilities at 3 levels
1:User View: Interoperable Web Interface accessing services through Java Compute Services Framework
2:Network of Java Servers provide distributed services with databases, compute engines, collaboratories, object brokers, instruments
- All control at this level
- Some coarse grain computing
Back end “Number Crunchers” linked either by communication at level 2 (slowish but easy) or at level 3 (high performance but more work)
Compute processes linked either to servers or together by MPI if parallel