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MPI collected ideas from many previous message passing systems and put them into a "standard" so we could write portable (runs on all current machines) and scalable (runs on future machines we can think of) parallel software
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MPI agreed May 1994 after a process that began with a workshop in April 1992
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MPI plays same role to message passing systems that HPF does to data parallel languages
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BUT whereas MPI has essentially all one could want -- as message passing fully understood
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HPF will still evolve as many unsolved data parallel compiler issues
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e.g. HPC++ -- the C++ version version of HPF still uncertain
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and there is no data parallel version of C due to pointers (C* has restrictions)
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HPJava is our new idea
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whereas MPI fine with Fortran C or C++ and even Java
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