Barcelona optimization guide

By: anonymous (no.delete@this.spam.com), May 17, 2007 6:23 pm
Room: Moderated Discussions
>>I can sustain IPC=4, though only for brief periods of time.
>>And with little use, at least from a software perspective.
>
>I think if you want to realize Merom's potential for two packed SSE operations
>per clock on DGEMM-like kernels then you pretty much have to write code with IPC
>> 3 uoup/cycle although probably less than 3.5 uoup/cycle.

I need to look at the dispatch/retirement disparity (6/4 uOPs
per cycle) some more.
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