How do we select which Cuda device to use?

[MildMustard]

I have tried the 'Select opencl device' under start menu but I get an opencl.dll error. What am I missing here?

I have 2 Nvidia cards.

Thanks

[vladimir.nedev]

This DLL should be part of the operating system / graphics driver.
Are you on Windows 10 ?
There is a similar issue reported here : https://forums.geforce.com/default/t...ng-opencl-dll/
It says to reinstall your graphics driver.

Greetings,
Vladimir Nedev

[MildMustard]

Thanks! Yes I am using windows 10, will give it a try now. I was pretty sure I already installed the latest drivers, but may have been before an update.

Will report back.

[MildMustard]

Re-installing the Nvidia drivers worked. I am now just having trouble setting the device.

I uncheck the 680gtx and hit 'Set Devices' and receive the following feedback - "Failed to update the OpenCL devices to use", any ideas?

[vladimir.nedev]

Re-installing the Nvidia drivers worked. I am now just having trouble setting the device.

I uncheck the 680gtx and hit 'Set Devices' and receive the following feedback - "Failed to update the OpenCL devices to use", any ideas?

Did you run the tool as an Admin ?

Greetings,
Vladimir Nedev

[MildMustard]

ah ok, was not aware that it needed admin permission. It worked, thanks very much!

[vladimir.nedev]

ah ok, was not aware that it needed admin permission. It worked, thanks very much!

Ideally we will make the tool ask for admin permissions automatically, but unfortunately we haven't done it yet.

Greetings,
Vladimir Nedev