[Beowulf] Re: the comparison between OpenMP and MPI
toon at moene.indiv.nluug.nl
Mon May 21 12:00:51 PDT 2007
Florent Calvayrac wrote:
> Without optimization no registers were used so the code was giving
> correct results and at O1 code was optimized on a line per line basis
> and not procedure-wide.
> So even commercial code can be wrong...
As a former boss of mine put it, some 25 years ago: "You think the
compiler is perfect ? Hah, it's just another large program with its
own bugs !"
Toon Moene - e-mail: toon at moene.indiv.nluug.nl - phone: +31 346 214290
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At home: http://moene.indiv.nluug.nl/~toon/
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