Hi, In Ubuntu 13.10 and 14.04-64bit.

I've commented on the NVIDIA forum and it seems the problem is in a different implementation of the OpenCL libraries from Nvidia> 331.49 drivers.

The result is that with the new Nvidia drivers (331.67) BOINC not find the GPU.

NVIDIA drivers present but no GPUs found
No ATI library found
No OpenCL library found
No usable GPUs found

Mind pointing to the thread on the Nvidia forums?
Or else, point out what the exact change is, where the OpenCL libraries are now found after installation of the drivers? That might help the developers.

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Mind pointing to the thread on the Nvidia forums?
Or else, point out what the exact change is, where the OpenCL libraries are now found after installation of the drivers? That might help the developers.

Hello: Differences installation on the OpenCL libraries not know exactly, I know Ubuntu so thoroughly for a good track.

The link below is the thread that I have Nvidia.

Boinc + Ubuntu + Nvidia = No usable GPUs found.

I think no one is clear what is happening or why this change that creates so much trouble.

Mind pointing to the thread on the Nvidia forums?
Or else, point out what the exact change is, where the OpenCL libraries are now found after installation of the drivers? That might help the developers.

Hi, I think may be interested in this information about the problem of OpenCL and updates to the latest drivers from Nvidia.


Subject: Bug#745715: nvidia device not available for
compute in OpenCL and CUDA - msg#42729

Can you select the Nvidia-OpenCL packages using Synaptic and install them?

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Can you select the Nvidia-OpenCL packages using Synaptic and install them?

Hello: Yes, but that's not the problem, the issue is a bug in the Nvidia> 331.49 driver you are wrong internal links to these libraries.

The situation is solved, for now, as I commented, installing new > 331.67 drivers manually, but evidently requires a solution from Nvidia, Ubuntu. Greetings.

I think this a relevant bug upstream:

https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1311362

I'm curious how Carlesa25 can tell that "internal links" are broken. I don't know how to check for that.

I tried using the proprietary driver tool to select v304 drivers again and...it worked! So, if you don't want to have to install drivers manually, try v304, assuming it supports your card.

It's possible they fixed the drivers because I made a point to choose v304-updates, not plain v304. Or, maybe the changed the proprietary install bundle dependencies. But the there were a couple libmesa-type updates, too, so I'm just not sure what was the real fix.