Computing Services at 3 levels

• 1:User View: Interoperable Web Interface accessing services through Java Compute Services Framework2:Network of Java Servers provide distributed services to 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

Java Servers

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