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Terror Australis Send message Joined: 14 Feb 04 Posts: 1817 Credit: 262,693,308 RAC: 44 |
Curious, why don't you do AP work units? Like you I was suspicious of crunching AP's but the crashing RAC of my major cruncher since June 1 forced me to do something. The effort required I think depends on whether you have an ATI or an Nvidia card(s). Setting up an ATI card seems to involve a bit more fuss. But I can't really comment as I don't have any ATI cards For an Nvidia card there are 2 ways to do it. 1) Run the Lunatics installer or, 2) Download the AP files from Lunatics and copy the exe file and dll's into your SAH directory, copy the NV aistub file and paste it into your existing app_info file deleting the extra <app_info> entries.(My preferred method, it makes for a neater app_info file) 3) Copy the suggested default entries that suit your card from the bottom of the Readme file into into the AP**NV.txt file (can't remember the full name). 4) Allow AP's in your SAH preferences file. 5) Run BOINC. This takes about 15 minute to get a going machine. Some tips. The AP app is most efficient when running at least 2 instances per card. While allocating a full CPU per AP instance is recommended, I've found that allocating 0.5 CPU's per instance make no difference to the run times and allows for more efficient CPU usage. Change the <av_cpus> entry in the AP section of you app_info file from 0.04 to 0.5. Make sure you have at least V310.xx drivers installed CPU usage and run times vary with the amount of blanking in the WU so run times can vary from ~25 mins. to ~1.5 hours. Running 2 instances, the average crunching time per unit is around 45mins for a GTX580 and around 60 minutes for a GTX470 Have fun :) T.A. |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13854 Credit: 208,696,464 RAC: 304 |
Curious, why don't you do AP work units? Neither do i, so I might wait to see just how far my RAC does fall, then give it a go. If it's just a case of running Lunatics, changing the CPU value from .04 to .5 it may be worth the effort. Grant Darwin NT |
kittyman Send message Joined: 9 Jul 00 Posts: 51478 Credit: 1,018,363,574 RAC: 1,004 |
Curious, why don't you do AP work units? That should be all it takes. If you get errors, it might require one more copy and paste operation to add some parameters to override the default settings. Should be no muss, no fuss with NV cards. "Time is simply the mechanism that keeps everything from happening all at once." |
Lionel Send message Joined: 25 Mar 00 Posts: 680 Credit: 563,640,304 RAC: 597 |
Note: Data for last 6 days added and revised running average. I’ve had a look at the data around v7 and v6 WUs and below is a quick observational analysis of my data. Under v6, I was roughly averaging 100 credits per Work Unit (WU). Under v7, it seems that the average is sitting around 75-80 credits per WU. In looking at run-times and taking the outliers out, cpu run time was around 600-660 seconds (10-11 minutes) per WU for v6, and appears to be around 800-1100 seconds (13+ to 18+ minutes) for a v7 WU. CPU time seems to have gone up by a factor of 2-3 from 50-60 seconds for v6 to 90-180 seconds for v7. So doing a quick Back of the Envelope (10.5/15.83=0.66) shows that from a WU processing/throughput capability, I can expect to do roughly 66% of the volume of WUs that I did before (for example, if I was doing 400 WUs per day under v6, I can now expect to do around 264 WUs per day under v7). Looking at the impact on credit gives 0.66*0.775 = 0.514 or 51.4%. In essence I can expect that daily credit for v7 will drop to circa 51% of what I was getting under v6. I am aware of the comments around “that the system needs time to settle down†and that “it thinks all the WUs coming back at the moment are easy, hence the low credit†however, if the system continues to perform as is, then I can expect to see no change from current trajectory. To test the assumption, I have looked at credit per day for the last 20 days. Below is the data:
2013.05.17 – 220,168 2013.05.18 – 231,098 2013.05.19 – 226,353 2013.05.20 – 224,723 2013.05.21 – 210,477 2013.05.22 - 0 2013.05.23 – 431,485 2013.05.24 – 229,312 2013.05.25 – 228,767 2013.05.26 – 239,021 2013.05.27 – 231,271 2013.05.28 – 231,050 2013.05.29 – 0 2013.05.30 – 392,635 2013.05.31 – 209,556 2013.06.01 – 123,072 2013.06.02 – 94,061 2013.06.03 – 102,333 2013.06.04 – 99,896 2013.06.05 - 65,653 2013.06.06 - 112,209 2013.06.07 - 102,538 2013.06.08 - 110,760 2013.06.09 - 89,757 2013.06.10 - 96,018 2013.06.11 - 111,653 2013.06.12 - 90,091 2013.06.13 - 119,848 2013.06.14 - 99,884 2013.06.15 - 104,561 2013.06.16 - 110,566 2013.06.17 - 110,603 2013.06.18 - 102,856 2013.06.19 - 85,268 2013.06.20 - 140,694 2013.06.21 - 70,247 2013.06.22 - 109,698
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Gatekeeper Send message Joined: 14 Jul 04 Posts: 887 Credit: 176,479,616 RAC: 0 |
Curious, why don't you do AP work units? No doubt that we NV users have an easier go of it than ATI folks. I started running the opencl AP's with the new installer release, but stopped when I ran into errors that were apparently caused by BOINC forcibly terminating jobs prior to their normal EOJ exit. I don't know whether or not a fix for that issue has been accomplished. |
kittyman Send message Joined: 9 Jul 00 Posts: 51478 Credit: 1,018,363,574 RAC: 1,004 |
Curious, why don't you do AP work units? Did you try the advice in the last couple of posts in this thread? It worked for me. "Time is simply the mechanism that keeps everything from happening all at once." |
TBar Send message Joined: 22 May 99 Posts: 5204 Credit: 840,779,836 RAC: 2,768 |
Curious, why don't you do AP work units? I told you about the 'fix' for that issue back here, on page one, http://setiathome.berkeley.edu/forum_thread.php?id=71889&postid=1379669#1379669 It works. |
Donald L. Johnson Send message Joined: 5 Aug 02 Posts: 8240 Credit: 14,654,533 RAC: 20 |
I have noticed, in the past couple of days, that mid-range AR tasks running about 25,000 seconds validate with 105-120 credits, about what thee got under S@H v6, whereas right after v7 rollout they were getting about 80 credits. Donald Infernal Optimist / Submariner, retired |
juan BFP Send message Joined: 16 Mar 07 Posts: 9786 Credit: 572,710,851 RAC: 3,799 |
My RAC finaly reaches the bottom of the sea, and start to rise (very...very slowly) worst case cenario 150K, not rises to 159K was 450K before. As you all could imagine I´m so happy about that! I love Creditnew. But i´m still crunching SETI until the last beer! |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13854 Credit: 208,696,464 RAC: 304 |
Still falling here, but not as fast as it was. Grant Darwin NT |
Wiggo Send message Joined: 24 Jan 00 Posts: 36781 Credit: 261,360,520 RAC: 489 |
I seem to have hit bottom now. Not bad, from 90K down to 54K, but things seem to be slowly on the up. Cheers. |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13854 Credit: 208,696,464 RAC: 304 |
I seem to have hit bottom now. I'm doing MB only, people doing AP as well won't take as big a hit. It's MB that's had it's payout slashed. Grant Darwin NT |
Wiggo Send message Joined: 24 Jan 00 Posts: 36781 Credit: 261,360,520 RAC: 489 |
I seem to have hit bottom now. I only did AP's on my 2500K CPU, when they came along and you could grab 1, but now it seems to be all it does these days, with the odd MB V6 or V7 thrown in now and again to break the monotony (which is why it's now my higher RAC rig again). Cheers. |
Terror Australis Send message Joined: 14 Feb 04 Posts: 1817 Credit: 262,693,308 RAC: 44 |
I seem to have hit bottom now. My MB only cruncher is back on the rise. Its old V6 RAC was ~32k, it bottomed at around 18k but is now back up to 19.5k. The V7 credits seem to have increased in value since last week. T.A. |
bill Send message Joined: 16 Jun 99 Posts: 861 Credit: 29,352,955 RAC: 0 |
I seem to have hit bottom now. Mines gone up. Only using the GPUs. Crunching Milkyway on the cpu at the momenr. |
Wiggo Send message Joined: 24 Jan 00 Posts: 36781 Credit: 261,360,520 RAC: 489 |
I seem to have hit bottom now. I've noticed the same thing myself, about a 25-30% increase by the looks so far but they still have a long way to go yet (they may get back to right by Xmas). Cheers. |
EdwardPF Send message Joined: 26 Jul 99 Posts: 389 Credit: 236,772,605 RAC: 374 |
Here are 3 identical crunchers spanning the changeover - for what is's worth (if anything) all 3 have identical CPU load. (I hope this works!!) Ed F https://dl.dropboxusercontent.com/u/42596478/SETI%20Graph%20CPU%202.jpg https://dl.dropboxusercontent.com/u/42596478/SETI%20Graph%20CPU%204.jpg https://dl.dropboxusercontent.com/u/42596478/SETI%20Graph%20CPU%206.jpg |
Michael Cruz Send message Joined: 23 Jan 00 Posts: 35 Credit: 323,653,343 RAC: 30 |
I have also noticed the same "bottoming" out. My RAC dropped from ~102K to about ~60K and for the last few days I have seen a slight upturn of RAC on most of my rigs. I'm now "up" to about 69K. I'm going to have to add a couple more computers to the farm :) Seti Classic: 204,777 WU /113.636 Yrs |
Mike Bader Send message Joined: 18 May 99 Posts: 231 Credit: 20,366,214 RAC: 33 |
My RAC is down from over 5100 to about 3200. I expect it to drop more as remaining v6 work units are gone and all V7 take over. I have even added a few more computers. Mike Bader BOINC V7.16.5 http://setiathome.berkeley.edu/team_join_form.php?id=5 - Join Our International Team [img]http://boinc.mundayweb.com/one/stats.php? |
Rolf Send message Joined: 16 Jun 09 Posts: 114 Credit: 7,817,146 RAC: 0 |
My RAC dropped from 13300 (end of May 2013) to about 7100 (15th June 2013) at more or less constant speed. Then it started increasing again but only at half the speed it was decreasing. Will watch it carefully! |
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