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OpenCL device matching slot 0 not found,

Posted: Fri Mar 20, 2020 9:24 am
by cl0h
Hi all,
I want to do my bit in the fight against COVID 19 / SARS CoV2 and I'm trying to get folding working on two GPUs on Fedora 31. See spec below. I installed the RPM Fusion NVidia drivers. I removed CPU folding and added 2 GPUs. I got these errors in fahclient log:

Code: Select all

09:07:59:ERROR:WU00:FS00:Failed to start core: OpenCL device matching slot 0 not found, try setting 'opencl-index' manually
09:10:01:ERROR:WU01:FS01:Exception: Failed to connect to 192.0.2.1:80: Connection timed out
[/code]
Please tell me what other info / log output is needed.
Regards
C.


Computer Specs:
CPU: Intel Core i3-4160 CPU @ 3.60GHz × 4
RAM 32GB.
GPU 1: NVIDIA Corporation GF119 [NVS 310] (rev a1)
GPU 2: NVIDIA Corporation G94GL [Quadro FX 1800] (rev a1)
Network Connection: 256Mbps cable -> wired CAT 5 to PC NIC
Operating System: Fedora 31 (5.5.9-200.fc31.x86_64)
Overclocked: nope, stock speed
Stable: No crashes
Software: FAHClient 7.5.1
WU details: What is this???

Re: OpenCL device matching slot 0 not found,

Posted: Fri Mar 20, 2020 3:21 pm
by Joe_H
Someone else with experience with Fedora may be able to help some of your problem, and there are also some recent posts from persons setting up on Fedura that might be useful to you.

One thing I can point out, the Quadro FX 1800 is too old to use and is no longer supported as it is based on the Tesla chip architecture. The NVS 310 may work as it is based on Fermi which is the minimum requirement. I can not find information quickly on whether double precision calculations are supported on the NVS 310, if not it also is no longer supported.

If that is the case, then WU requests are redirected to an address that was planned for a new version of the client to provide that feedback, and to keep from adding to the load on the Work Servers.

Re: OpenCL device matching slot 0 not found,

Posted: Fri Mar 20, 2020 4:16 pm
by cl0h
Thanks for the response. I will investigate CPU folding as an alternative.
C.