Posts by Joel
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21)
Questions and Answers :
Macintosh :
ATi GPU's - Are there any application(s) coming/currently utilising them?
(Message 1089704)
Posted 23 Mar 2011 by  Joel
Post: This roadmap that Jason Gee created for the Lunatics builds might be helpful: http://lunatics.kwsn.net/1-discussion-forum/lunatics-experimental-development-roadmap.msg36185.html#msg36185 The green stuff is done. Yellow is near term. Beige is medium term. Mac OS X stuff in the lower right corner is listed in grey, meaning...who knows what term? This is the first time in a while I have seen OS X and CUDA anywhere near each other, so maybe it's on the radar on some level. Raistmer has been in the lead on OpenCL and he is mainly working on Windows, so I don't know if Urs, who is listed here as porting new stuff to OS X, will focus on that. Based on this, it looks like at some point, we can expect to see some combination of CUDA/optimized v7/AVX on Mac. Though note here that Urs does not contribute to CUDA, so it's still hard to say exactly what is coming to Mac at what point, without inquiring in more detail over on the Lunatics forum. |
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22)
Questions and Answers :
Macintosh :
10.6.7/MacBook pro early 2011: Unknown app name in app_info.xml
(Message 1089657)
Posted 23 Mar 2011 by Joel
Post: Did you specifically check SETI's folder, or did you do a spotlight search? The BOINC data folder is in Library, which is probably not indexed by Spotlight. /Library/Application Support/BOINC Data/projects/setiathome If you have an app_info.xml file, it will be in there. Both of your Macs are using anonymous clients, so I'm guessing there should in fact be an app_info.xml file. |
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23)
Questions and Answers :
Macintosh :
ATi GPU's - Are there any application(s) coming/currently utilising them?
(Message 1089654)
Posted 23 Mar 2011 by Joel
Post: probably best to actually ask them on their own forums. That is probably true. http://lunatics.kwsn.net/index.php?action=forum |
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24)
Questions and Answers :
Windows :
Suspending computation - CPU usage is too high
(Message 1089291)
Posted 22 Mar 2011 by Joel
Post: If you want to set up exclusive applications like John McLeod suggested, here are some instructions: http://boincfaq.mundayweb.com/index.php?view=491&language=1 This will suspend BOINC processing when any of the applications you specify are running. |
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25)
Message boards :
Number crunching :
Super Computer on a desk.
(Message 1087647)
Posted 17 Mar 2011 by Joel
Post: $350 -- 2x Craigslist PCs with ~3 year old AMD CPUs $170 -- 2x new GTS 250 GPUs (last year) $100 -- 1x GTX 460 GPU (this year) Total: $620, current RAC 27,400, which is 44 RAC/$1, or 2.2¢/RAC. I'm hoping that turned out be a good deal compared to other people's hardware, but either way, I've got no plans to spend anything else for quite a while. I'm satisfied that I'm doing my part for finding the aliens. |
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26)
Questions and Answers :
GPU applications :
Problem with Geforce GTX 560 Ti and Cuda_fermi
(Message 1085919)
Posted 11 Mar 2011 by Joel
Post: By the way, does anyone know if there is any difference between seti and einstein when it comes to the Cuda apps? It is strange that i have no problem running einstein. You can find out for yourself, to an extent, by using an app to monitor the GPU usage. Nvidia offers a monitor, and there are others like GPU-Z. See if the GPU is being utilized at 100% under Einstein. It generally will be under SETI, or at least we usually like it to. If it is not for the other project, Einstein is not pushing it as hard as SETI, so it is using less power and not getting as hot. To test temperature under SETI alone, suspend Einstein and let it only crunch SETI and see if it gets any hotter. |
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27)
Questions and Answers :
GPU applications :
Problem with Geforce GTX 560 Ti and Cuda_fermi
(Message 1085822)
Posted 10 Mar 2011 by Joel
Post: and that your power supply is up to the task of running it Definitely check this. Insufficient power and overheating will often result in general instability, but they may also cause less noticeable problems if they are intermittent or just on the border of being acceptable. |
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28)
Questions and Answers :
GPU applications :
Problem with Geforce GTX 560 Ti and Cuda_fermi
(Message 1085624)
Posted 10 Mar 2011 by Joel
Post: Cuda_fermi is the app that is designed for Nvidia Fermi GPUs (http://www.nvidia.com/object/fermi_architecture.html). They are different enough from previous Nvidia GPUs that they needed modifications to the CUDA app to process SETI@home work correctly. This is the app you should be using with your GTX 560. As for your results, you're getting -9 errors, which means you are finding too many results in the WU to store. This can happen if there's unblanked radio interference, I believe. If that's the case, several clients will find the same thing and validate it. But your wingmen are not finding this, so something may actually be wrong here. How is the temperature of the card? Overheating can cause weird results. It's also possible that some of these will validate, because your wingmen happened to have a problem of their own and your -9 results are correct. See if a bunch of the inconclusive results were from the same wingman. |
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29)
Message boards :
Number crunching :
What do we tackle next?
(Message 1085208)
Posted 9 Mar 2011 by Joel
Post: As I have pointed out recently and gotten some agreement on in another thread, everything is working really well the last several weeks. The outages have been very short. We should be happy about this as a sign that things are improving and will hopefully work well for a while. No need to complain about anything at all right now, as far as I can tell. |
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30)
Questions and Answers :
Macintosh :
ATi GPU's - Are there any application(s) coming/currently utilising them?
(Message 1084904)
Posted 8 Mar 2011 by Joel
Post: Actually Apple originally created OpenCL and then got ATI, Nvidia, Intel, IBM and some others on board to finalize it. It certainly is intended to be used on Macs. But CUDA has been available for Mac for some time too, and there hasn't been a Mac port of the CUDA app for Nvidia, so I am not exactly holding my breath for an OpenCL app. You have to ask the Lunatics folks if they have anything cooking for OpenCL for Apple OSes I think that's what he was trying to do. Hopefully one of those folks can chime in and say I'm wrong about what's coming for Mac GPUs. |
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31)
Questions and Answers :
Windows :
Running SETI@HOME on School Computers
(Message 1084869)
Posted 8 Mar 2011 by Joel
Post:
It would help the problem. There's no "fix" for the problem that the computer will simply be using the CPU more. Hopefully throttling the CPU usage would lead to fewer crashes from overheating and so forth, but chances are that your school has not invested in high end PCs that are designed to be running all the time. The more a computer uses each of its components, the faster they wear out. This is most obvious with something like a hard drive, but most CPUs don't really like being in heavy use constantly. Discuss it with the school's IT manager. They'll certainly be aware of the issues and will have an opinion. |
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32)
Questions and Answers :
GPU applications :
What exactly is a normal amount of pending credit?
(Message 1084864)
Posted 8 Mar 2011 by Joel
Post: A few months ago, I remember some discussion of how everyone's pending credit was increasing relative to their RAC. At that point, people were reporting pending credit of 6-7x their RAC, and this was considered unusually high, but it seemed to be a project-wide phenomenon. Mine is currently 2.6 times my RAC. |
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33)
Message boards :
Number crunching :
My God, why hasn't nVidia noticed?
(Message 1083055)
Posted 2 Mar 2011 by Joel
Post:
Sure, of course you wouldn't expect a hardware company to come along and write software for every project or company who wants help. But Nvidia's help to SETI@home a few years ago was an excellent demonstration of how powerful their technology is. We've all bought a bunch of fancy GPUs as a result. AMD/ATI have lagged behind a bit in the GPGPU realm, and now that they are catching up in making it possible with OpenCL, it might behoove them to do like Nvidia did and generate some buzz and demonstrate that their technology is just as good or better. It's not like they're evil for not doing so, or anything, but I do think it would help them raise their profile by showing how good their GPUs can be for this project. And they probably would sell some more cards, too. We've got Raistmer et al working hard on making ATI GPUs work, but that's still a bit of a hassle, so for now most of us who don't also play games are sticking with Nvidia. |
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34)
Message boards :
Technical News :
Red Shift (Mar 01 2011)
(Message 1082889)
Posted 2 Mar 2011 by Joel
Post: Thanks for the update, and good job keeping everything in order over there! Since the big issues a few weeks ago, things have been looking pretty good. The weekly outages have been short, which is much appreciated by this hobbyist... |
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35)
Message boards :
Number crunching :
Much rejoicing?
(Message 1082888)
Posted 2 Mar 2011 by Joel
Post: Am I the only one who is very happy that the last couple weekly outages have been so short? I haven't seen much talk about that this week. Everyone's always grousing when things are down for a while, so let's make sure to celebrate when they aren't! Things are running smoothly in Berkeley! This is good! ;) |
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36)
Questions and Answers :
Windows :
Reinstalled BOINC. Can't run BOINC manager. Only works on Admin account, not on other users.
(Message 1082885)
Posted 2 Mar 2011 by Joel
Post: Nobody has actually come forward and mentioned that they are able to run GPU tasks while using the Screenaver. He said it might work. You took that to mean it will work. We don't know because most folks turn the screensaver off just in case. Well, I said so. I've done it under XP. At the time I was doing it, one of the screensavers that was running was climateprediction.net, but now that I think about it further, SETI was also definitely showing graphics sometimes. I don't usually have the monitor on, but I did see the SETI screensaver from time to time, and a lot of CUDA work was being done, so I am relatively sure that both were happening simultaneously. This was not with a particularly powerful graphics card, a 9500 GT. It's not totally low end, but it's really not that powerful. Mine was not a 256 mb model, though. It had more VRAM than that. So if you're short on memory on the card, sure, this would cause issues. |
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37)
Questions and Answers :
Windows :
Reinstalled BOINC. Can't run BOINC manager. Only works on Admin account, not on other users.
(Message 1082624)
Posted 1 Mar 2011 by Joel
Post:
OK, that's what I thought, and since Birdman is using a GTX 560, there should not be any problem in running screensaver graphics while crunching, if everything is working as it should. |
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38)
Questions and Answers :
Windows :
Reinstalled BOINC. Can't run BOINC manager. Only works on Admin account, not on other users.
(Message 1082547)
Posted 1 Mar 2011 by Joel
Post: you won't be able to run the scren saver while running work on the GPU. If you want to run the screen saver then you'll have to stop running GPU WU's Are you sure about this? Before I moved to optimized apps, I am pretty sure that my GPU was crunching while the screen saver was on and displaying graphics. They were kind of jerky because the GPU was mainly being used for crunching, but they were there. This was under XP. Is it different with Windows 7? |
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39)
Questions and Answers :
Windows :
Help. I need to transport Package of program to my job Computer
(Message 1081165)
Posted 25 Feb 2011 by Joel
Post: Given that your company blocks sites through its proxy server, they may not be happy about you installing something like boinc. If they're going to allow you to install it, maybe they'll make an exception to the allowed sites, as well. That's probably the best way to go about this. Just ask real nicely ;) |
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40)
Message boards :
Number crunching :
Advice needed :)
(Message 1080883)
Posted 24 Feb 2011 by Joel
Post: John, also note that when you adjust max CPU usage down, task manager will still report 100% usage a lot of the time. Instead of throttling down the actual usage to the value you choose, SETI runs at 100% less of the time. So if you set 50%, it will run at 100% for one second, then stop for one second, then back to 100%, etc. Is that what you are seeing? Here's something I've been wondering that is relevant to Careface's original question. If you set max CPU usage to less than 100%, does this throttle just the CPU app, or also the portion of the CPU that is used to feed the GPU? If the latter, BeNt's comment makes sense. I leave my full time crunchers at 100%, so I have no real experience here. |
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