SPEC 2000 results on PowerPC

Andrew Pinski pinskia@physics.uc.edu
Tue Aug 17 18:14:00 GMT 2004


On Aug 17, 2004, at 10:16 AM, Mark Mitchell wrote:

> I've now got SPEC 2000 results for PowerPC.
> I'm using a G5 and ran with "-O2 -mcpu=970".  My goal is not to 
> demonstrate how fast this machine is, but rather to compare the 
> current mainline with the last release.
>
> The current mainline is, I would say, somewhat better than 3.4.1.
> Three tests (176.gcc,187.facerec,189.lucas) work with 3.5, but did not 
> run at all with 3.4.1, so that is clearly an improvement.

I should note that 176.gcc has a known aliasing problem in its code 
which is most
like what is causing it to miscompare and also the extended lvalue 
issue.

> My current plan is to look into fixing the tests that do not work at 
> all, and then see what's going on with 168.wupwise.


I should also note that wupwise is fortran and I can tell you I get 
about the same
score with gfortran than I get NAG F95 with gcc 3.5.0.


-- Pinski



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