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An Overview of Parallelism 197

Mortimer.CA writes with a recently released report from Berkeley entitled "The Landscape of Parallel Computing Research: A View from Berkeley: "Generally they conclude that the 'evolutionary approach to parallel hardware and software may work from 2- or 8-processor systems, but is likely to face diminishing returns as 16 and 32 processor systems are realized, just as returns fell with greater instruction-level parallelism.' This assumes things stay 'evolutionary' and that programming stays more or less how it has done in previous years (though languages like Erlang can probably help to change this)." Read on for Mortimer.CA's summary from the paper of some "conventional wisdoms" and their replacements.

The trouble with doing something right the first time is that nobody appreciates how difficult it was.