On 31/08/09 3:33 PM, "Øystein Johansen" <[email protected]> wrote:
> 
> * /Should/ means that it should give the same answer. I have tested a lot of
> inputs and got the desired output, however..... there can be surprises.
> 
Unless there is a bug or there is a precision change there is a difference
between the outputs pre-patch and post patch versions. I am not the only one
to have seen it. Now what I haven¹t ruled out is that an unintended side
effect of something else (optimizations, sse2 compiler bug etc).

I am running some eval tests today., When finished I will take out the
latest CVS, and make 2 builds. No Multithreading with SSE only, and No
Multithreading with SSE2 only (both builds with no compiler optimizations so
no ­O2 or -O3), I have a few thousand matches and I¹ll analyze a random
subset of the files on both versions (At 0 ply) and see if I can find any
differences.

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