Need Flexibility of HTTP/RMI/COM/CORBA with performance of systems like MPI
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Can use compiler or runtime libraries to map in application (tier 3) which gives greatest performance
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More flexible is to map at server (tier 2) when you can access functionality of all mapped protocols
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NPAC has built JWORB which is a Java server which supports both the Web and CORBA(distributed object) protocols
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JWORB supports RTI and so allow one to build Web Tools for FMS/IMT DoD (DMSO) communities (RTI is event driven simulation equivalent of MPI)
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WebFlow will become an HLA Programming Environment
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JWORB could support MPI and so link HPCC and DMSO
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Commercial systems can bridge COM and CORBA
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