Core26 released to full FAH ?
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Re: Core26 released to full FAH ?
On Ubuntu
sudo apt install ocl-icd-opencl-dev
sudo apt install ocl-icd-opencl-dev
Re: Core26 released to full FAH ?
For Nvidia? It's an RTX 4060 and would be crippled if it had to use OpenCL.
Re: Core26 released to full FAH ?
The WU_STALLED error is often a false positive. The core indicates that it has stalled by exiting with code 127, but exit code 127 is also what the system itself uses to say a program cannot find a required library. The client will misinterpret that error for a stalled WU error.teaough wrote: ↑Mon May 19, 2025 10:11 pm Every time I get a core-26 or core-27 work unit my system runs for 1 second and then dumps the WU.
AMD Ryzen 5/NVidia 4060
Submitting to forum as instructed... but I'm not certain that this is the correct thread for this.
Thanks.
21:55:13:I3:Running FahCore: /var/lib/fah-client/cores/openmm-core-26/centos-7.9.2009-64bit/release/fahcore-26-centos-7.9.2009-64bit-release-8.2.0/FahCore_26 -dir AXgevWMTa4yTRRP1WX1D519FIyNV-Fq6u6HvqomGJXs -suffix 01 -version 8.4.9 -lifeline 1789 -gpu-uuid 4a6400bf-af2c-e395-2010-1f7e749e1a75 -gpu-platform cuda -gpu-vendor nvidia -cuda-platform 0 -cuda-device 0
21:55:13:I3:WU1631:Started FahCore on PID 81474
21:55:14:E :WU1631:Core returned WU_STALLED (127)
21:55:14:E :WU1631:The folding core did not produce any log output. This indicates that the core is not functional on your system. Check for missing libraries or GPU drivers. Make a post about your issue on https://foldingforum.org/ to get more help.
21:55:14:E :WU1631:Run did not produce any results. Dumping WU
Post the output of the following commands:
Code: Select all
$ cd /var/lib/fah-client/cores/openmm-core-26/centos-7.9.2009-64bit/release/fahcore-26-centos-7.9.2009-64bit-release-8.2.0
$ LD_LIBRARY_PATH=$PWD ldd FahCore_26
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Re: Core26 released to full FAH ?
In the past the installation of OpenCL and the CUDA support libraries were linked, both needed to be installed for folding to work. Unless there has been a recent change, the CUDA support is not installed by itself.
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Re: Core26 released to full FAH ?
ICD exposes required libraries to fahcore26/27.
It does not force FAH to use OpenCL

Something changed either with Nvidia drivers or with core26/27 that in some cases it now requires icd loader. It might even be OS changes
Re: Core26 released to full FAH ?
I didn't know that! I just know that I don't need ICD to fold with CUDA with core26/27. So it must be an OS change.
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Re: Core26 released to full FAH ?
Indeed it is quite random
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Re: Core26 released to full FAH ?
Based on discord discussions it also depends how the OS is installed: upgrade from previous release, initial install some time ago, fresh install.
In my case I did not need ICD on a 24.04.1 install from 2024, but needed it for a fresh 25.04 install...
In my case I did not need ICD on a 24.04.1 install from 2024, but needed it for a fresh 25.04 install...
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Re: Core26 released to full FAH ?
I checked the absent libs using the
LD_LIBRARY_PATH=$PWD ldd FahCore_26
it showed that the OpenCL libs were missing. So I did this...
sudo apt install ocl-icd-opencl-dev
That was successful but FAH is running a core-23 work unit now. If I get a core-26/7 WU later and it's successful (or not), I'll post that.
Thanks everybody.
LD_LIBRARY_PATH=$PWD ldd FahCore_26
it showed that the OpenCL libs were missing. So I did this...
sudo apt install ocl-icd-opencl-dev
That was successful but FAH is running a core-23 work unit now. If I get a core-26/7 WU later and it's successful (or not), I'll post that.
Thanks everybody.
Re: Core26 released to full FAH ?
libOpenCL.so.1 must be installed for cores 26 and 27, older cores came with their own library. No further OpenCL components required if you just want to use CUDA.
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Re: Core26 released to full FAH ?
F@H is currently working on a core-26 WU and everything appears to be going just fine.
Sincere THANKS to all who assisted.
Enjoy your Memorial Day weekend.
Sincere THANKS to all who assisted.
Enjoy your Memorial Day weekend.
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Re: Core26 released to full FAH ?
btw - it is running CUDA.