[Beowulf] Q: AMD Opteron (Barcelona) 2356 vs Intel Xeon 5460

Eric Thibodeau kyron at neuralbs.com
Wed Sep 17 13:46:11 PDT 2008

Greg Lindahl wrote:
> On Wed, Sep 17, 2008 at 03:43:36PM -0400, Eric Thibodeau wrote:
>> Also, note that I've had issues with icc  
>> generating really fast but inaccurate code (fp model is not IEEE *by  
>> default*, I am sure _everyone_ knows this and I am stating the obvious  
>> here).
> All modern, high-performance compilers default that way. It's certainly
> the case that sometimes it goes more horribly wrong than necessary, but
> I wouldn't ding icc for this default. Compare results with IEEE mode.
> -- greg
Guess gcc isn't part of that gang. I haven't had the chance to play with 
the commercial compilers other than icc. ;)
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