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Re: optimize for multicore processors

On Nov 9, 2009, at 3:34 PM, Matthias Scheler wrote:

On Mon, Nov 09, 2009 at 09:21:54AM -0200, Otavio Augusto wrote:
For extract more performace in multiore machines I need a specific
technique or an multi-thread programming is sufficient ?

A multi-threaded application is one way to achive scalability to
multiple CPU cores. Using multiple processes is another one.
None of the two approach is however guaranteed to be succesful.
You e.g. need to partition the problem that your software is
trying to solve properly.

Matthias hits on the salient point: once you have your program divided
in to parts that can run independently of each other to achieve a common
goal, the rest is just technique.

Take care of that first. Then worry about whether you are using processes or
threads and how those processes or threads are created.


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