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CUDA-x86.

Accelerators not found
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dholt



Joined: 30 Jul 2008
Posts: 15
Location: The Portland Group Inc.

PostPosted: Tue Jun 01, 2010 1:26 pm    Post subject: Reply with quote

This sounds like a driver/toolkit compatibility issue. I would try uninstalling both and reinstalling the driver and toolkit (in that order) from the CUDA 3.0 developer page:

http://developer.nvidia.com/object/cuda_3_0_downloads.html#Windows
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mhsuan



Joined: 27 May 2010
Posts: 11

PostPosted: Thu Jun 03, 2010 1:41 am    Post subject: Remote Desktop seems the troublemaker Reply with quote

Thanks for your suggestions. Before doing that, I have found that the troubles possibily come from the Remote Desktop application. The situation is that I have connected my home computer to one in the workplace via Remote Desktop. The GPU card is installed in the workplace computer. When I run SDK executables, e.g., deviceQuery.exe, via the Remote Desktop window displayed on the monitor of the home computer, messages like "There is no device supporting CUDA" come out. However, the execution works normally when running the codes using the on-site mouse-keyboard-monitor set in the workplace. The outcome keeps unchanged after reinstalling the display driver and CUDA toolkit. This phenomenon really confuses me. What's the possible reason and how can I fix the problem? Thank you very much.

BTW, the file "devdriver_3.0_winxp_32_197.13_general.exe" downloaded from the web site you provide "can not locate any driver matched with the current hardware". Therefore, I manually find drivers for Tesla C2050 from the "Download Drivers" at www.nvidia.com.
The file is named "197.68_Tesla_winxp_32bit_international_whql.exe".

Regards,

M-H Chung
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dholt



Joined: 30 Jul 2008
Posts: 15
Location: The Portland Group Inc.

PostPosted: Thu Jun 03, 2010 1:16 pm    Post subject: Reply with quote

Quote:
The situation is that I have connected my home computer to one in the workplace via Remote Desktop.


That is the problem. Remote Desktop does not provide access to the underlying GPU driver. Your only option for working remotely is VNC or via SSH. I posted a description of how to enable SSH in PGI Workstation in this thread.
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mhsuan



Joined: 27 May 2010
Posts: 11

PostPosted: Sun Jun 06, 2010 8:12 am    Post subject: SSH server works but another problem appears to be solved Reply with quote

Thanks a lot. The SSH server works and the GPU can be fully driven now while it is a little inconvenient. Hope for an improved solution in the near future. Another problem is that, when I run computation-intensive codes like "nbody.exe" in the SDK, activation of another program, e.g., Microsoft Outlook, always causes the computer down. Is the capability of power supply not affordable? The only Tesla C2050 card is also used as the display card. The maximum power output of the power supply is 530W. Thank you very much.

M-H Chung
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