|
1)
Message boards :
Graphics cards (GPUs) :
PCIe 2.0 vs 3.0 & # of lanes
(Message 30097)
Posted 19 minutes ago by  skgiven
There will be boards that support Two PCIE3.0 X16 slots (@X16), and up to four PCIE3 slots @X8. As for the 4th Generation of Intel's, I don't know which desktop processors if any will bring more PCIE lain support. You might think that the i7-4770K would move from 32 lanes to 40 lanes, but I believe they are still using dual channel RAM and only the servers will be quad. I would wait for the legit reviews rather than going by the speculation. |
|
2)
Message boards :
News :
Canceled SDOERR WU's
(Message 30092)
Posted 5 hours ago by skgiven
Stefan, I wasn't suggesting that you cancel the batch, just the individual WU's. It was just a grumpy suggestion. If you think these aren't WU specific problems then there is no point cancelling them. I was concerned about the I2HDQ_21R8-SDOERR_2HDQd-1-4-RND9506 WU, as it has already produced 4 different errors on different systems (with varying operating systems, GPU types/generations and probably drivers). While 2 systems have a high error rate, two don't. Stoneageman, it seems you ended up with resends for both of my failures! http://www.gpugrid.net/workunit.php?wuid=4465782 I hope they fare better for you. |
|
3)
Message boards :
Number crunching :
NOELIAs are back!
(Message 30088)
Posted 10 hours ago by skgiven
I've only seen the 'suspend & crash' problem on W7. Saying as different OS's handle the drivers differently it's bound to be OS related. On XP I think you still can't set Prefer maximum performance in NVidia control panel - might explain the 'card running wild on the GPU clock' issue. Anyway, it's a driver issue; they took that feature away. |
|
4)
Message boards :
Graphics cards (GPUs) :
Which graphic card
(Message 30087)
Posted 10 hours ago by skgiven
My guess is the GTX460, but if we go back to CC1.1 cards, it was really hit and miss and I got stung several times. |
|
5)
Message boards :
News :
Canceled SDOERR WU's
(Message 30086)
Posted 10 hours ago by skgiven
This morning I saw that a system had recovered from a problem and was sitting at the Windows log-on screen. When I logged on it became unresponsive, though after waiting about a minute (due to my reg settings) I got 2 app crashed error messages for SDOERR WU's: I2HDQ_21R8-SDOERR_2HDQd-1-4-RND9506_3 4467647 18 May 2013 | 21:10:00 UTC 19 May 2013 | 11:13:06 UTC Error while computing 18,441.84 18,362.63 --- Long runs (8-12 hours on fastest card) v6.18 (cuda42) I2HDQ_22R9-SDOERR_2HDQd-0-4-RND3283_1 4465782 18 May 2013 | 17:35:46 UTC 19 May 2013 | 11:36:31 UTC Aborted by user 33,710.79 33,611.30 --- Long runs (8-12 hours on fastest card) v6.18 (cuda42) These 2 WU's were around 50% and 79% complete (9h). I tried Boinc exits and log -ns, cold restarts, but always got the same app crashes. Even tried a clean driver install. 2 Climate models also failed (only 87h lost this time). When I suspended and enabled the GPUGrid WU's they showed a fixed progress (~50% and 79%), but the elapsed and remaining time kept ticking over.
This application has requested the Runtime to terminate it in an unusual way. Please contact the application's support team for more information. Kernel not foundAssertion failed: a, file swanlibnv2.cpp, line 59
|
|
6)
Message boards :
News :
Current Noelia WUs
(Message 30083)
Posted 14 hours ago by skgiven
Trotador, I would suggest you abort it, if you haven't already. Beyond, I have no idea why 51% of people do anything they do - I don't even ask anymore. |
|
7)
Message boards :
Graphics cards (GPUs) :
NVidia GTX 650 Ti & comparisons to GTX660, 660Ti, 670 & 680
(Message 30076)
Posted 1 day ago by skgiven
Just meant as a very rough guide, but serves to highlight price variation and the affect on performance/purchase price. £: GTX660Ti - 100% - £210 GTX660 - 88% - £153 (73% cost of a GTX660Ti) – 20.8% better performance/£ GTX650Ti Boost 79% - £138 (cost 66%) – 19.7% better performance/£ GTX650Ti - 58% - £110 (cost 52%) – 11.5% better performance/£ $ (from Beyond's post): GTX660Ti - 100% - $263 GTX660 - 88% - $165 (63% cost of a GTX660Ti) – 39.7% better performance/$ GTX650Ti Boost 79% - $162 (62%) – 27.4% better performance/$ GTX650Ti - 58% - $120 (46%) – 26.1% better performance/$ € (from a site MrS linked to): GTX660Ti - 100% - €229 GTX660 - 88% - €160 (70% cost of a GTX660Ti) – 25.7% better performance/€ GTX650Ti Boost - 79% - €129 (56%) – 41.1% better performance/€ GTX650Ti - 58% - €104 (45%) – 28.8% better performance/€ CAD $ (matlock): GTX660Ti - 100% - $300 GTX660 - 88% - $220 (73% cost of a GTX660Ti) – 20.5% better performance/CAD GTX650Ti Boost - 79% - $180 (60% cost of a GTX660Ti) – 31.6% better performance/CAD GTX650Ti - 58% - $150 (50% cost of a GTX660Ti) – 16% better performance/CAD Going by these figures the GTX660 is the best value for money in the UK and the US, but the 650TiBoost is the best value for money in Germany (Euro) and Cananda. Beyond's $84 GTX650Ti offers a staggering 207% better performance/$ than a GTX660Ti. As long as you have the space, such bargains are great value. I will fill this out a bit later. |
|
8)
Message boards :
News :
Current Noelia WUs
(Message 30068)
Posted 1 day ago by skgiven
People tend to complain when things aren't working, rather than when things are working. There are some successful (and normal) Linux runs for NOELIA_klebe WU's out there: 005px12x2-NOELIA_klebe_run-1-3-RND5943_1 4441647 16 May 2013 | 12:36:44 UTC 16 May 2013 | 23:06:31 UTC Completed and validated 36,427.18 15,679.52 127,800.00 Long runs (8-12 hours on fastest card) v6.18 (cuda42) http://www.gpugrid.net/result.php?resultid=6878594 255px50x1-NOELIA_klebe_run2-0-3-RND5892_0 4458045 16 May 2013 | 17:37:23 UTC 17 May 2013 | 9:19:35 UTC Completed and validated 36,790.19 18,420.04 127,800.00 Long runs (8-12 hours on fastest card) v6.18 (cuda42) http://www.gpugrid.net/workunit.php?wuid=4458045 306px36x4-NOELIA_klebe_run-2-3-RND3942_0 4447878 14 May 2013 | 2:20:57 UTC 14 May 2013 | 12:38:57 UTC Completed and validated 36,208.52 15,933.88 127,800.00 Long runs (8-12 hours on fastest card) v6.18 (cuda42) http://www.gpugrid.net/workunit.php?wuid=4447878 All 3 on the same rig. 291px19x1-NOELIA_klebe_run2-0-3-RND1187_1 4459422 18 May 2013 | 1:41:50 UTC 18 May 2013 | 15:27:00 UTC Completed and validated 41,384.82 2,370.90 127,800.00 Long runs (8-12 hours on fastest card) v6.18 (cuda42) http://www.gpugrid.net/workunit.php?wuid=4459422 148nx1x4-NOELIA_klebe_run2-0-3-RND6125_1 4455890 16 May 2013 | 21:26:28 UTC 17 May 2013 | 13:28:33 UTC Completed and validated 40,988.13 17,533.30 127,800.00 Long runs (8-12 hours on fastest card) v6.18 (cuda42) http://www.gpugrid.net/workunit.php?wuid=4455890 290px25x1-NOELIA_klebe_run-2-3-RND9425_1 4444345 17 May 2013 | 16:11:58 UTC 18 May 2013 | 6:09:31 UTC Completed and validated 38,213.60 3,327.34 127,800.00 Long runs (8-12 hours on fastest card) v6.18 (cuda42) http://www.gpugrid.net/workunit.php?wuid=4444345 3 more different Linux rigs, and different WU's, and enough for me. |
|
9)
Message boards :
News :
Current Noelia WUs
(Message 30064)
Posted 1 day ago by skgiven
This might just be an issue with these specific WU's, they don't run well on Linux. There are some Downclocking and CPU usage possibilities that might cause this: If you are not using coolbits to increase the fan speed and the GPU is getting too hot, it would downclock. The GPU might get downclocked by the OS if the GPU usage isn't perceived as being high enough. If the CPU's clocks drop (to 1400 MHz) it might starve the GPU enough to cause the GPU's clocks to drop. Top The problem with Linux is finding out what's going on. I would really like to be able to fill out the Useful Tools area for Linux... |
|
10)
Message boards :
Graphics cards (GPUs) :
Which graphic card
(Message 30061)
Posted 1 day ago by skgiven
I think Ti just means a "performance" version of a GPU, as opposed to an SE or Eco model for example. Cards with 'Ti' are faster/offer better performance, but not necessarily best value... A typical GTX660Ti is 20 to 25% faster than a reference GTX660, however there is a range of GTX660Ti's probably form about 15% faster to 30% faster than a reference GTX660, and there might be some modest OC versions of the GTX660. The top GPUs are: GTX690, 680, 670, 660Ti, 660, 650Ti Boost, 650Ti, 650. From, http://www.gpugrid.net/forum_thread.php?id=3156&nowrap=true#29914 GTX660Ti - 100% - £210 GTX660 - 88% - £153 (73% cost of a GTX660Ti) – 20.5% better performance/£ GTX650Ti Boost 79% - £138 (66%) – 19.6% better performance/£ GTX650Ti - 58% - £110 (52%) – 11.5% better performance/£ From the above prices the GTX660 offers the best performance/purchase price for mid-range GPU's, however prices vary by region, and when a new GPU has just been released it tends to be more expensive (so perhaps the GTX650Ti Boost will fall in cost and improve it's performance/cost ratio). I haven't included the Titan because it's not yet capable or running WU's here (new app required). It's performance will probably eclipse the GTX680's, and sit somewhere between a 680 and a 690 (dual GPU). The soon to be released GTX780 (also a CC3.5 'big Kepler', launch date May 23rd, 2013) should also surpass the GTX680, and the GTX770 (basically just a GTX680 with slightly higher clocks, CC3.0 I guess, launch date May 30th, 2013) should also slightly outperform the GTX680. |
Next 10