Author: Lance Perkins
Date: 02:02:54 07/05/05
Go up one level in this thread
Not true. Testing a multi-threaded app on a single-cpu machine is bogus. Its very easy to write a multi-threaded app. Its a no brianer. But to be sure that it actually works on a multi-cpu machine, you have to test it on one. On a single-cpu machine, the threads never run in parallel. A shared resource will never be accessed simultaneously. I have tons of horror stories about this from newbie programmers. On July 05, 2005 at 03:56:29, Steven Edwards wrote: >On July 05, 2005 at 03:31:42, Tord Romstad wrote: >>On July 04, 2005 at 23:36:39, Juan Pablo Naar C. wrote: > >>>Is coding for SMP really hard? > >>It is, especially when you don't have a dual CPU computer. >>There are still very few of us who have one. Duals are still >>too big, noisy and expensive for the average customer. >>This will, of course, change in the future (probably in the >>near future). When duals become more common, I am >>sure the number of parallell chess programs wil increase >>rapidly. > >If the host and target platforms are POSIX compliant (e.g., Mac OS/X and Linux), >then adherence to the POSIX thread model specification is relatively simple and >so an SMP-aware prgram can be developed and tested on a single CPU machine. >This is part of Symbolic's development method.
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