I should note that we have a single GeForce GTX 470 card on the workstation and have installed the latest CUDA drivers and toolkit (3.2).

Marcus N Schmidt
Department of Child & Adolescent Psychiatry
Erasmus MC
Rotterdam, The Netherlands



On Nov 23, 2010, at 2:51 PM, Marcus N Schmidt wrote:

Hello,

Is there a limit to how many processes can use CUDA at the same time? I just setup a new Linux workstation and am delving into FreeSurfer w/ CUDA. I'm getting the following error:

Acquiring CUDA device
Using default device
CUDA Error in file 'devicemanagement.cu' on line 46 : all CUDA-capable devices are busy or unavailable.
Linux rietveld 2.6.18-194.26.1.el5 #1 SMP Tue Nov 9 12:54:20 EST 2010 x86_64 x86_64 x86_64 GNU/Linux

Thanks,
Marcus

Marcus N Schmidt
Erasmus MC
Rotterdam, The Netherlands