Posts by borandi
|
41)
Message boards :
Number crunching :
VPU recoveries with HD4770/XP32/Catalyst 9.x
(Message 27166)
Posted 6 Jul 2009 by  borandi
Post: Use Cat 9.5 for XP32 bit (if using XP 32-bit) Make sure to rename the appropriate files in windows/system32 Use GPU-Z to make sure it sees the right card. ------------ The reason for using this is because Cat 9.5+ will recognise your card - Cat 9.4 and below will not. 9.6 is flakey with MW, leaving you with 9.5. Then it's a question of setting it up correctly. Priorities: a) Get PC to recognise card with catalyst drivers b) Get MW to work with those drivers by renaming the files |
|
42)
Message boards :
Number crunching :
X2 GPU use 50% each GPU?
(Message 27164)
Posted 6 Jul 2009 by borandi
Post: Don't know if they would work for you or not, the last to lines should work as they work on all my Box's running a ATU GPU Capable Card. The Top line is the one I play with, I have it set to anywheres from 1.0 to 0.01 & in between to get the Cards to run at least 3 Per Core and the CPU to run 3 or 4 Regular Wu's on a Quad & up to 8 Regular Wu's' on a i7 ... Had a look at your hosts PoorBoy and yup looks like your method works :) Thanks for the input, I'll give it a bash when I get home. What config are you using of OS/BOINC/Catalyst? XP/6.6.20/9.5? |
|
43)
Message boards :
Number crunching :
X2 GPU use 50% each GPU?
(Message 27155)
Posted 6 Jul 2009 by borandi
Post: Should note I'm using BOINC 6.4.7, though I doubt that makes a difference in this case. Machine is not running any other projects either. |
|
44)
Message boards :
Number crunching :
X2 GPU use 50% each GPU?
(Message 27153)
Posted 6 Jul 2009 by borandi
Post: I installed my 4850X2 card last night, Crossfire enabled, Cat 9.5 and 0.19f. Running a cmdline of n1 w1.1 In GPU-Z, it states both GPUs are running at ~50%. Normally my bog standard 4850 either runs at 70% or 95% (depending on the WU). So, is GPU-Z saying 50% for each GPU normal? My intuition says no based on individual 4850s, but I'll see the RAC after a couple of days use. I was wondering what peoples experiences were. I've done the disable CF/enable 2nd GPU tweak - meant one GPU ran in 3D, the other in 2D, both hit 70% in GPU-Z. Then one GPU needed VPU recovery after a few minutes, so this isn't an option. I tried n2 n3 and n4 in cmdline, no improvement in that respect. The output does state 2 CAL devices found, which is always a plus. But a 74 credit WU is taking 160seconds, about twice as long as it did on a single 4850. (So in 160 seconds, one 4850X2 does 2 WUs, but 2x 4850 does 4...) You could argue that 2x50% = 100%, however I'm under the impression that the GPU-Z GPU load bar is just for that GPU, thus out of 100 for that individual GPU. Thoughts please :) |
|
45)
Message boards :
Number crunching :
Please give more time to process WUs
(Message 26682)
Posted 29 Jun 2009 by borandi
Post: I'd suggest heading over to Aqua@Home Amauri - they have long WUs (100-200 hours on a modern machine) and the credit return is also good. Unfortunately MW deadlines are set for the project so they stay on a good path - future research depends on results of the current work, and if that change is every 3 days then your results won't matter to the project... |
|
46)
Message boards :
Number crunching :
How many CPU/GPU hours?
(Message 26446)
Posted 25 Jun 2009 by borandi
Post: http://milkyway.cs.rpi.edu/milkyway/forum_thread.php?id=902 is the thread you want :) |
|
47)
Message boards :
Number crunching :
getting tired of 9.6 crashing. what can I do?
(Message 26445)
Posted 25 Jun 2009 by borandi
Post: Boinc 6.6+ plays havok with requesting work, hence why I'm back to 6.4.7 w/ 8.12. |
|
48)
Message boards :
Number crunching :
How can I crunch on both GPUs in a ATI4870x2?
(Message 26444)
Posted 25 Jun 2009 by borandi
Post: CCC 9.6 loads the card on both GPUs with MW WUs - albeit at a reduced frequency (507/500MHz)on the second GPU - which is odd. .DLL files copied & renamed. That means it's running 1 GPU in 3D mode, the other in 2D mode. Try using ATi Tray Tools, from Guru3d.com (not ATi tools, TRAY TOOLS :)) |
|
49)
Message boards :
Number crunching :
"Minor" problem
(Message 26443)
Posted 25 Jun 2009 by borandi
Post: Set your work cache for longer - 1 or 2 days. At the minute you have enough work to cover your cache - extending the cache may be a way into some WUs. |
|
50)
Message boards :
Number crunching :
Only getting 1 wu per GPU
(Message 26306)
Posted 23 Jun 2009 by borandi
Post: I'm a big fan of the big block XFX coolers :) Though I'm also a big fan of cheap GFX cards... |
|
51)
Message boards :
Number crunching :
4850 vs 4870
(Message 26010)
Posted 19 Jun 2009 by borandi
Post: I'm running HD3850's in two boxes right now, for an avg. of 20K WUPD. Annoyingly a new 3850 here Jim is 50GBP. We have to pay a slight premium on our electronics no matter what the exchange rate unfortunately. My quandry initially was the number of GPUs vs PPD. A 3850 would get 20k daily, for 50GBP. So 6 of those = 300GBP, 120k PPD. Now if you got a 4850X2 for 150GBP, it's 90k PPD (based on the 4.68 ratio below). So 2 of those = 300GBP, 180k PPD, and only takes two PCI-E slots. Obv the difference is that a 4850X2 requires 1 6-pin and 1 8-pin to power it from the PSU, whereas a 3850 doesn't require anything iirc. |
|
52)
Message boards :
Number crunching :
Only getting 1 wu per GPU
(Message 26009)
Posted 19 Jun 2009 by borandi
Post: I had this using an extremely modified version of XP for benchmarking. Went back and installed my normal XP, worked fine. |
|
53)
Message boards :
Number crunching :
ATI GPU app 0.19f fixes the ps_sgr_208_3s errors
(Message 25920)
Posted 18 Jun 2009 by borandi
Post: Another question: was anyone ever succesful in installing nvidia (gtx260) and ati 48xx in the same system? My system (E8400, 6GB, Vista Home premium 64) simply disables the ATI-card. I got my 4850 and a GTX280 running both at the same time in the same system. The problem is the PC won't initialise the second card - most people get around this by having a dual monitor setup or a dummy plug. However, there is a way around the monitor bug thing in windows without using a second monitor or a dummy plug. Go to your display settings, enable the second monitor as an extention of your desktop, AND as the primary monitor. When you click apply, you'll be left with a screen which is just your background. Now unplug the monitor cable from it's current graphics card, into the one you just enabled. You should be back to your desktop, albeit able to move your mouse off to the left. This enables both cards. The one drawback is that sometimes (not often) windows will pop up on the other screen - I had it with my MSN messenger, until I dragged the window over and then it was fine. |
|
54)
Message boards :
Number crunching :
4850 vs 4870
(Message 25919)
Posted 18 Jun 2009 by borandi
Post: We seem to differ on 4830 RAC though. Mine does seem low, but comparing core speed vs no. of cores and everything else on Wikipedia puts the 4770 well above the 4830. I can't read :) Just looked below each card at that number =P |
|
55)
Message boards :
Number crunching :
4850 vs 4870
(Message 25917)
Posted 18 Jun 2009 by borandi
Post: That ist quite close to the numbers I came up with an posted several times already ;) I remember you writing it CP, couldn't remember where but wanted to do it myself anyway. I developed a spreadsheet based on RAC per GPU cost for my future reference. Looks like above £150 the 4850X2 is the way to go :) We seem to differ on 4830 RAC though. Mine does seem low, but comparing core speed vs no. of cores and everything else on Wikipedia puts the 4770 well above the 4830. Apart from 4830 being a RV770 and 4770 being a RV740... Here's the cost/RAC spreadsheet, if anyone's interested. It's in GBP(£) with the lowest price for each card I could find. Number on left is the money you have to spend. So at £60, it makes sense to get a 3850. At £190, it makes sense to get 4850s or 4850X2s. It's all relative, based on your PSU requirements and available PCs. |
|
56)
Message boards :
Number crunching :
4850 vs 4870
(Message 25910)
Posted 18 Jun 2009 by borandi
Post: Cards that can process MW at the minute: 3850 - 668Mhz, 320cores, GDDR3 @ 828Mhz 3870 - 775Mhz, 320cores, GDDR3/4 @ 900/1125Mhz 3850X2 - 668Mhz, 640cores, GDDR3 @ 828Mhz 3870X2 - 775Mhz, 640cores, GDDR3/4 @ 900/1125Mhz 4770 - 750Mhz, 640cores, GDDR5 @ 800 Mhz 4830 - 575Mhz, 640cores, GDDR3/4 @ 900 Mhz 4850 - 625Mhz, 800cores, GDDR3/4 @ 993 Mhz 4870 - 750Mhz, 800cores, GDDR5 @ 900Mhz 4890 - 850-1000Mhz, 800cores, GDDR5 @ 975Mhz 4850X2 - 625Mhz, 1600cores, GDDR3 @ 993Mhz 4870X2 - 750Mhz, 1600cores, GDDR5 @ 900Mhz In general, more cores are better. In terms of RAC, use the % difference in core Mhz as a rough estimate (as it's also based on your CPU too). So 4850 to 4870 is 625Mhz to 750Mhz, or a 20% jump, as CP said. (Since writing this list, I'm going to scrap my plans to get 3 3850X2 to fill some PCI slots and go for 2 4850X2 instead for the same price.) So in terms of RAC, using the 3850 as a normalised value of 1: 3850 - 1 3870 - 1.16 3850X2 - 2 3870X2 - 2.32 4770 - 2.25 4830 - 1.72 4850 - 2.34 4870 - 2.81 4890 - 3.18 to 3.74 4850X2 - 4.68 4870X2 - 5.62 Formula = (cores / 320) * (1+((Mhz - 668)/668) So a 4870X2 will get you roughly 5.62 times more RAC than a 3850. |
|
57)
Message boards :
Number crunching :
strange message
(Message 25861)
Posted 18 Jun 2009 by borandi
Post: No that error message has been a part of BOINC for a while (v5 ish) It's because you turn your computer or BOINC off for a little while. So say you have your computer on 50% of the time each day. You get a 170hr WU from CPDN that needs to be done in a month (hypothetical WU), and your CPDN share ratio is 10%. Now, you run 7*12*4 hours a month = 336. But CPDN will only get ~33.6hrs of that, if nothing else reaches a deadline. So it won't download the WU. It's a feature of BOINC that due to your recent time management, it doesn't think that it'll finish the WUs in the report deadline. Obviously this is skewed at MW given optimised clients (so BOINC reports as a 12min WU when on a card it takes 30s and on a CPU it takes 30min), so BOINC is not always right. A few ways to get around it - up your MW share; remove some of the other projects from that machine; cancel a few long WUs of other projects you may have cached; edit some of the BOINC xml files to help you along; wait and it'll sort itself out. |
|
58)
Message boards :
Number crunching :
How can I crunch on both GPUs in a ATI4870x2?
(Message 25787)
Posted 17 Jun 2009 by borandi
Post: You'd be surprised - even with work flowing as it is, I have come across one of my dual cores, with a 4850 running n1 setting, be without a WU for a couple of minutes every so often as it only takes 6 minutes to empty the cache. With a 4:1 on 30sec WUs you'd compute 4 WUs in the first 30s, then end up with 30s with 2 GPUs not working before you could contact the server again. Then you'd only have work for the next minute if you get it. Agreed on the MW_GPU front though - it won't matter then :) |
|
59)
Message boards :
Number crunching :
Catalyst 9.6
(Message 25769)
Posted 17 Jun 2009 by borandi
Post: Guess i'm a bit behind... Not saying you didn't. Didn't say it was a bad thing either. I've split funds to have a gaming machine with an nVidia card, and a couple of crunchers with ATi cards. Though to be fair when MW work was low, the ATi cards in crossfire at stock speeds outperformed the nVidia on a 27% overclock. Still awaiting the 2010 Codemasters F1 game though... In the meantime some FarCry 2 and HAWX will have to do - as well as the odd Commander Keen: 
|
|
60)
Message boards :
Number crunching :
64 CPUs on a Q6600 ????
(Message 25768)
Posted 17 Jun 2009 by borandi
Post: Aha - I'm guessing this is a MW imposed limit? 6 WU per core, max 48WU per machine. Where's that 128 threaded Xeon EX X7460 cluster when you need it :p |
Previous 20 · Next 20
©2024 Astroinformatics Group