1) Message boards : Number crunching : rising and falling gpu usage while crunching[solved] (Message 1357941) Posted 18 Apr 2013 by AI4FR Post: I have two 580's in one of my PC's and had the same problem as you did. When seti would send shorties, the gpu's would run fine at 99%. Otherwise I ran into your issue. I tried 1,2,3, and 4 wu's per gpu. I finally settled on 3. But I had to drop a few cores(6-HT). I now run 3 gpu wu's per card and 6 cpu cores. GPU's run at 98-99% and cpu usage is around 60 or so. My cpu utilizes hyper-threading which I think is the issue. I have not tried it with HT off. My other machines without HT has no issues at all. The GTX 550's run 3 wu's at a time and all of the cpu. Usage is 99% for gpu and 100% for cpu. For anyone wondering if dropping a cpu core will help in their machine, simply suspend cpu work while noting gpu usage. Good luck.

2) Message boards : Number crunching : New guy on the block (Message 1357668) Posted 17 Apr 2013 by AI4FR Post: Welcome!!!

3) Message boards : Number crunching : Zotac Infinity Edition GTX 580/EVGA X79 Classified upgrade (Message 1356732) Posted 14 Apr 2013 by AI4FR Post: Cool cruncher!!!

4) Message boards : Number crunching : 10,000,000 Credit! (Message 1351358) Posted 28 Mar 2013 by AI4FR Post: Way cool!!! Congrats!!! .

5) Message boards : Number crunching : Wind tunnel cpu set up (Message 1326537) Posted 11 Jan 2013 by AI4FR Post: Well done!! Thanks for sharing!!!

6) Message boards : Cafe SETI : Happy New Year!!! (Message 1323008) Posted 1 Jan 2013 by AI4FR Post: Happy New year folks. May you all have a very Blessed 2013!!!

7) Message boards : Number crunching : Changes in BOINCstats Page (Message 1233565) Posted 19 May 2012 by AI4FR Post: I agree, I much prefer the old way better. It was so much nicer. I am also one of those with a slow connection speed. The new changes take much longer to load.

8) Message boards : Number crunching : Absolve Me of My Guilt. (Message 1186447) Posted 19 Jan 2012 by AI4FR Post: Nice upgrade Andy!!!

9) Message boards : SETI@home Science : If the Giza pyramids were built by Alien. (Message 1160905) Posted 10 Oct 2011 by AI4FR Post: I always thought the hieroglyphics image below was rather interesting. It looks like there is a sub, plane and a helicopter.

10) Message boards : Number crunching : After 12+ years, I'm congratulating myself on this milestone (Message 1160900) Posted 10 Oct 2011 by AI4FR Post: Way to go Steve!!! Keep up the great crunching!!!

11) Message boards : SETI@home Science : Need help with the math (Message 1153793) Posted 19 Sep 2011 by AI4FR Post: I like the idea and wish you the best of luck with it. Some other variables to take into consideration would be the signal strength leaving the antenna(not the power of the transmitter), the type of signal it is. For example, a CW or Morse code transmission mode which occupies a much smaller bandwidth then phone(AM, FM SSB, etc.) can be transmitted with much less power and be heard through much more noise then the above modes. Equally important is the frequency of the transmitted signal. What I mean by that is not how often the signal is being transmitted, but rather on what frequency it is being transmitted on. An AM broadcast signal that is heard on your car radio would never make it the distance, but at the frequency of light it would. A good place to start might be with light pollution and how bright a certain star has to be before it is observed. Then work the frequency and math down for a certain type of antenna and see what you come up with. There are a lot more things to consider such as the polarization of the signal. I would think it would be circular rather then horizontal or vertical but do not know for sure. The noise in the receiver circuitry and so on.

12) Message boards : Number crunching : Not complaining but........... (Message 1150337) Posted 9 Sep 2011 by AI4FR Post: Jackpot!!

13) Message boards : Number crunching : Timed out - No response ? (Message 1148356) Posted 2 Sep 2011 by AI4FR Post: I get them as well from time to time. A few days ago I received a boatload of them. They do not seem like they hurt any thing as far as I know. http://setiathome.berkeley.edu/results.php?userid=9466276

14) Message boards : Number crunching : Top GPU models (Message 1147126) Posted 30 Aug 2011 by AI4FR Post: Interesting, thanks for the link. Some thing doesn't look right in the line-up though.

15) Message boards : Number crunching : Taking a break from SETI@home (Message 1147121) Posted 30 Aug 2011 by AI4FR Post: Ryan, sorry to hear that you will be on vacation from SETI for a while but I do understand. Hurry back soon as you will be missed!! John P.S. An early congrats on hitting that 2 million mark, well done!!

16) Message boards : Number crunching : Overclocking GPU's - How Much To Make A Difference? (Message 1144417) Posted 24 Aug 2011 by AI4FR Post: Good question. I can not help with the reduced time, but I can chime in on my two 580's which are the same GPU's that you are using. I had mine running at a core clock speed of 825mhz, a shader speed of 1650mhz(it is always double the core clock), and a memory clock speed of 2104mhz. At this configuration I was getting an error every so often in the work units(WU's). Roughly about 5 or 6 a day. Not to bad but it bothered me none the less as I was fearful that the increased speed in doing WU's was being eaten away by them bad WU's. So I dropped the speed down and started working my way back up again. The core clock speed is now at 820mhz which brings the shader speed to 1640 mhz. I have also been increasing the memory clock speed which is now at 2165mhz and so far I have zero bad WU's. I plan on bumping this up over time until I find the point that I am getting errors again. At which point I will drop it back down. Each card is a little different so your results may be different then mine. I do expect that they will be some what close though. During the time that I am around the computer I run two WU's at a time which equates to between 80 and 95 percent and temps in the 60's and low 70's. When I am away I cut it back down to one WU per card.

17) Message boards : Number crunching : Pending Credit -> Task Counts???? (Message 1141694) Posted 17 Aug 2011 by AI4FR Post: State: All (7752) | In progress (5606) | Pending (1263) | Valid (818) | Invalid (2) | Error (63) Slightly off topic, but I have found that the tasks from above to be often off. For example, check your stats, upload a few hundred completed tasks, hit the "update" button, and once done check your stats again. It might show where you have uploaded around 50. Watch it for a few hours and them other tasks seem to never show up.

18) Message boards : SETI@home Science : Jodie Foster helps SETI get back on track! (Message 1139371) Posted 12 Aug 2011 by AI4FR Post: Way to go Mrs. Foster!!

19) Message boards : Number crunching : Goodbye (Message 1135117) Posted 2 Aug 2011 by AI4FR Post: I hope you're able to come back soon JPM.

20) Message boards : Number crunching : GPU's Going on Sale (Message 1135115) Posted 2 Aug 2011 by AI4FR Post: Maxwell....Holy smokes thats fast!!!

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