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Justin
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Message 46626 - Posted: 19 Mar 2011, 3:17:22 UTC

Team,

Quick question... I'm going to install a new video card on my primary number crunching machine. I've been stressing production over the last few weeks trying to break the top 100 hosts. I wanted to get some insight into how the RAC is calculated. Does it decay in real time or do I have a window to do this upgrade? I'm moving from 5970 to 6990, so will want around a day to test drivers/over clocks for optimal performance, play with it, etc... I just want to get a feel for what kind of reduction in RAC I can expect.

Thanks,
Justin
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Profile arkayn
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Message 46627 - Posted: 19 Mar 2011, 3:25:50 UTC

You will probably lose about 5k or so in RAC, it is a moving average.
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Justin
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Message 46631 - Posted: 19 Mar 2011, 7:39:53 UTC - in response to Message 46627.  

Thanks for the reply. I was able to get it running and overclocked surprising fast. 65 seconds per workunit!
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Message boards : Number crunching : Bringing down primary number cruncher for a day: what RAC impact?

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