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We don't emphasize openMP in class, as hard work (aka difficult programming model) of MPI is advantageous for class as teaches you parallel computing!
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Today Java can be used for client side applets and in systems middleware but too slow for production scientific code
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This should change over next year with better Java compilers -- including "native" compilers which do not translate to Java Virtual Machine but go directly to native machine language
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Use metacomputers for pleasingly parallel and metaproblems -- not for closely knit problems with tight synchronization between parts
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Use where possible web and distributed object technology for "coordination"
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