Polyhedron 2005 Benchmarks

[Paul Thomas]

Steve Kargl wrote:

>On Fri, Nov 18, 2005 at 06:44:05PM +0100, Paul Thomas wrote:
>  
>
>>A word of caution,...
>>
>>    
>>
>>>52.0s without and 36.7 seconds with -ftree-loop-linear.
>>>
>>>      
>>>
>>... it also gives incorrect results.  I will figure out how to reduce it 
>>and submit a PR.
>>
>>    
>>
>
>Is incorrect in that the two different gfortran runs give different
>answers?  Are you using -O3 and --fast-math? 
>
>  
>
Without it, ifort/gfortran/DF6 all give the same results. With 
-ftree-loop-linear, it throws a NaN towards the end of the run and stops.

Paul