1) Message boards : Number crunching : cncguru 1,000,000 RAC Machine (Message 46932) Posted 2 Apr 2011 by Justin Post: Good luck for the final push! How much RAC did you lose over last night?

2) Message boards : News : N-body updated to 0.40 (Message 46913) Posted 2 Apr 2011 by Justin Post: Here's my problem: I've ran into situation's where the multi-threaded N-body will take 7.80 of my CPU. This will place 7 other active CPU tasks (sse3) on hold, while it finishes the Nbody; and after the Nbody finishes... it grabs another Nbody... and it can cause a hit to my RAC as no GPU tasks get queued (so my GPU idles) and the remaining 7 sse3 tasks don't have enough cores accessible to finish or resume crunching. help.

3) Message boards : Number crunching : Optimized app for 6990? (Message 46891) Posted 1 Apr 2011 by Justin Post: Any thoughts? Hate to keep this bumped, but I don't think you 69XX folks that are rocking the top of RAC are running the stock application. :)

4) Message boards : News : Milkyway@Home for iPhone / iOS released (Message 46883) Posted 1 Apr 2011 by Justin Post: Why no android love? :)

5) Message boards : Number crunching : Amd Hd 69xx hits 88 degree Celcius.. (Message 46862) Posted 31 Mar 2011 by Justin Post: 6990 oced to 930/1380 will typically crunch between 59 and 69 seconds. Ive had some inconsisent results though. Ill be adding another 6990 next month... Hoping that the drivers are a bit more stable by then. 3rd week in and already having wierd issues with CCC. At stock bios selection 2, this card will most likely perform very similar to a 6970 per WU... It just has 2 of them per card.

6) Message boards : Number crunching : Optimized app for 6990? (Message 46844) Posted 30 Mar 2011 by Justin Post: my apologies if this already exists and I'm just bad at finding it. can anyone point me where I need to be? The sticky at the top didn't seem to have anything that worked.

7) Message boards : Cafe MilkyWay : Milestones III (Message 46743) Posted 26 Mar 2011 by Justin Post: Grats cnc, I'm getting a second 6990. I'm coming for that number 1 spot!

8) Message boards : Number crunching : How does a MW 0,50 CPU task affect your computer...? (Message 46729) Posted 26 Mar 2011 by Justin Post: I don't observe any meaningful temp difference between cores on .50 work (I use an i7 975). Core's 0 and 2 typically run 1-2 degree's hotter. Could it be improperly applied thermal paste?

9) Message boards : Number crunching : Amd Hd 69xx hits 88 degree Celcius.. (Message 46701) Posted 24 Mar 2011 by Justin Post: Have been using the 6990 for about a week now. Overclocked with stock cooling... runs anywhere between 92 to 101 C under full load. It's a hot card.

10) Message boards : Number crunching : experiences of a newby - gpu clock memory clock temperature (Message 46700) Posted 24 Mar 2011 by Justin Post: Using both the 5970 and the 6990 with GDDR5 memory, I've always experienced that higher memory clocks do decrease WU crunch time.

11) Message boards : Number crunching : Amd Hd 69xx hits 88 degree Celcius.. (Message 46692) Posted 23 Mar 2011 by Justin Post: You will be fine. Your card architecture is built to handle more stress and heat than that.

12) Message boards : Number crunching : Optimized app for 6990? (Message 46643) Posted 20 Mar 2011 by Justin Post: Is there an optimized app for the 6XXX series? Thanks, Justin

13) Message boards : Number crunching : Bringing down primary number cruncher for a day: what RAC impact? (Message 46631) Posted 19 Mar 2011 by Justin Post: Thanks for the reply. I was able to get it running and overclocked surprising fast. 65 seconds per workunit!

14) Message boards : Number crunching : Bringing down primary number cruncher for a day: what RAC impact? (Message 46626) Posted 19 Mar 2011 by Justin Post: 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

15) Message boards : MilkyWay@home Science : MilkyWay@Home Progress Report (Old) (Message 46550) Posted 13 Mar 2011 by Justin Post: Ugh. I'm pretty an much idiot and dont understand the project. Can anyone explain to me as if I was child? I get that the Milky Way ate some galaxy... but beyond that im having a difficult time understanding. Help me make a business case to the wife for my 6990.

16) Message boards : Number crunching : 6990 - Who Is Going To Be First? (Message 46531) Posted 11 Mar 2011 by Justin Post: I would love to get one, but I think I'm holding out for the GTX 590. I'm pretty much down with AMD.

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