1)Classic solution of large scale PDE or Particle dynamics problem
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Data parallelism over grid points or particles
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2)Modest Grain size Functional Parallelism as seen in overlap of communication and computation in a node process of a parallel implementation.
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More generally overlap of I/O -- disk,visualization -- and computation
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3)Object parallelism seen in Distributed Simulation where "world" modelled (typically by event driven simulation) as set of interacting macroscopic (larger than grid points) objects
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Objects are weopens, military units etc. in SIMNET/DSI (Forces Modelling)
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4)MetaProblems consisting of several large grain functionally distinct components such as
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Structural Analysis, Airflow, Manufacturing Process, Pricing, Controls etc. in MDO approach to manufacturing and design
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more generally are components of a Problem Solving Environment
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Java: 1) Not Supported, 2) is Thread mechanism, 3) is Java Objects or Applets, 4) is JavaBeans or equivalent
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Fortran: 1)is supported in HPF, 2--4) are not supported
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