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HPcc can be applied to either parallel or high-performance distributed computing (aka metacomputing)
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In metacomputing, HPcc fills a void as few if any high level tools
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In parallel computing, HPcc provides uniform and perhaps more attractive sustainable user environment
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Can view a parallel computer either as a single tier 2 object
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or as a collection of tier 2 objects -- one per node
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Both are interesting
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As a single object provides a CORBA like facility of invoking as a distributed object
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As one object per node, can use HPcc to provide node level programming environment
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