simtk.org

Posted: **Wed Jul 02, 2014 10:26 am**

Hi all,
The simulation code (simulatePdb.py of OpenMM) that worked absolutely fine initially, gives the following error now! I had downloaded OpenCL and its Linux 32 Ubuntu 12.04 with ATI Radeon Graphics Card.

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Setting of real/effective user Id to 0/0 failed
FATAL: Module fglrx not found.
Error! Fail to load fglrx kernel module! Maybe you can switch to root user to load kernel module directly
Setting of real/effective user Id to 0/0 failed
FATAL: Module fglrx not found.
Error! Fail to load fglrx kernel module! Maybe you can switch to root user to load kernel module directly
X Error of failed request: BadRequest (invalid request code or no such operation)
Major opcode of failed request: 136 ()
Minor opcode of failed request: 19
Serial number of failed request: 12
Current serial number in output stream: 12

[/size]
I have no clue what went wrong.

As per Swails suggestion, after trying

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modprobe fglrx

, I get the error-

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FATAL: Module fglrx not found.

Posted: **Wed Jul 02, 2014 10:30 am**

It sounds like you don't have the proper kernel modules loaded. You can try to load it (as root) via:

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modprobe fglrx

I haven't had an ATI/AMD video card in ages, so I don't have any practical experience getting their drivers installed or working. But my guess is that the GPU driver was updated (maybe?) or otherwise broken. You can always try rebooting to see if that loads the proper modules as well.

Posted: **Wed Jul 02, 2014 10:35 am**

Have you installed the AMD proprietary driver?

Peter

Posted: **Wed Jul 02, 2014 10:38 am**

I don't think so Peter. I'll check.

Posted: **Wed Jul 02, 2014 11:02 am**

Yes Peter. I had installed amd-catalyst-14-4-rev2-linux-x86-x86-64-may6; Which is for 64 bit Linux! I shall uninstall it and install a compatible one.

Posted: **Wed Jul 02, 2014 12:48 pm**

But Peter, actually that wasn't the wrong one. Its meant to be used by both 32 bit and 64 bit Linux users.

http://support.amd.com/en-us/download/d ... t-packages

Posted: **Sat Jul 05, 2014 9:43 am**

Well, I did a forced uninstall of the driver and then installed again; and it worked!

simtk.org

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