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I have had success running bedpostx_gpu on Centos 6.5, and CUDA Driver v6.0, on DTI with 64 directions. The card I have is a Quadro 4000, w/ driver version 331.49 If you have SGE, you have to make sure to switch to runlevel 2 (or whichever stops X), then set SGE_ROOT="" On 04/10/2014 10:47 AM, Satrajit Ghosh wrote: > here are some hardware/driver info from one of our nodes: > > ==============NVSMI LOG============== > Timestamp : Thu Apr 10 09:51:10 2014 > Driver Version : 319.82 > > Attached GPUs : 3 > GPU 0000:08:00.0 > Product Name : Tesla K20m > Display Mode : Disabled > Display Active : Disabled > Persistence Mode : Enabled > Accounting Mode : Disabled > Accounting Mode Buffer Size : 128 > Driver Model > Current : N/A > Pending : N/A > VBIOS Version : 80.10.39.00.04 > Inforom Version > Image Version : 2081.0208.01.09 > OEM Object : 1.1 > ECC Object : 3.0 > Power Management Object : N/A > GPU Operation Mode > Current : Compute > Pending : Compute > ---- > > > cheers, > > satra > > On Thu, Apr 10, 2014 at 9:19 AM, gong jinnan <[log in to unmask] > <mailto:[log in to unmask]>> wrote: > > Hi Jonathan, > I had run bespostx_gpu successfully only once on DWI data which > was composed by only 21 gradient directions. But unfortunately, it > was never done without error on DWI data which was composed by 60 > gradient directions or more. > And interesting, I found that it crashed in the high probability > if I interact with the computer when it’s running bedposts_gpu. It > that happened in your situation? Moises helped me to check the > logs, and found that RAM of GPU was enough to do my job, so I am > wondering is that because of CentOS or CPU too? > Jinnan. > 在 2014年4月10日，20:57，Jonathan Berrebi <[log in to unmask] > <mailto:[log in to unmask]>> 写道： > >> Hi, >> I have the exact same error when running bedpostx_gpu on a NVIDIA >> tesla card with cuda 5.5. I installed it on a centos 6.5 computer >> though. Previously I had tested bedpostx_gpu successfully on >> debian wheezy after downloading from neurodebian. It took a while >> and a simple modification to make it work, but it worked on a >> laptop with debian. I start wondering if it has to do with >> centos. Unfortunatelly I have to have centos because of some >> other hardware. >> >> I run cuda samples with success on the centos machine. For >> instance "devicequery" works. A Tesla card has no graphic output >> so I would have expected it to have no conflict with graphical >> driver. But as far as I have understood we need the nvidia >> graphical driver to be installed in order to use cuda. Then I >> assume (but I am not sure since I am no expert in graphical >> devices) that we should not declare the nvidia driver in >> xorg.conf. Is that correct? (or should I run nvidia -xconfig?). >> >> Anyway the way to install cuda has slightly changed now since you >> don't need to download the driver before. Cuda toolkit will ask >> you if you want to do it. Maybe something goes wrong there. >> >> I am sorry if I bring more confusion than solutions but I had the >> exact same error this week when I got the Tesla card and I have >> had many thoughts since then about what can have gone wrong. >> >> Thank you, >> >> Jonathan >> >> ________________________________________ >> De : FSL - FMRIB's Software Library [[log in to unmask] >> <mailto:[log in to unmask]>] de la part de Moises Hernandez >> Fernandez [[log in to unmask] <mailto:[log in to unmask]>] >> Envoyé : mercredi 9 avril 2014 15:09 >> À : [log in to unmask] <mailto:[log in to unmask]> >> Objet : Re: [FSL] Bedpostx_gpu couldn't run. >> >> It should not be a temperature problem unless your GPU has a >> hardware problem. Any video game increases the temperature of the >> GPU more than bedpostX. >> >> Have you tried to run some CUDA samples from the toolkit ? >> >> You can check the temperature and the memory being used every >> second by doing: >> nvidia-smi -l 1 >> (you can do in a new terminal while Bedpostx is running). >> >> Then, you can see if the process is close to the memory limit. >> >> Could you share the output directory ? >> >> Moises. > > >