Folding Forum

Posted: **Wed Oct 23, 2019 4:03 am**

I've reinstalled drivers and restarted. Now I have to wait for the active WU to finish, reboot just to test again, and then re-install the program and wipe WU data. Why do I have this strange issue, never had it before and I've been running the program for several years now.

Posted: **Wed Oct 23, 2019 6:02 am**

You might need a driver update. For some reason opencl doesnt work after some driver updates. I had a similar issue and reinstalled drivers to fix

Posted: **Wed Oct 23, 2019 3:32 pm**

Maybe post your FAH logfile to see what is going wrong?

Posted: **Wed Oct 23, 2019 3:49 pm**

The logfile is critical to our ability to make good recommendations. Without it, we have to guess.

One guess: If you allowed WindowsUpdate to update your GPU drivers, it probably did not reinstall OpenCL. Getting drivers directly from NVidia/AMD is generally recommended.

Posted: **Wed Oct 23, 2019 4:47 pm**

Code: Select all

*********************** Log Started 2019-10-23T16:41:12Z ***********************
16:41:12:************************* Folding@home Client *************************
16:41:12:        Website: https://foldingathome.org/
16:41:12:      Copyright: (c) 2009-2018 foldingathome.org
16:41:12:         Author: Joseph Coffland <joseph@cauldrondevelopment.com>
16:41:12:           Args: --open-web-control
16:41:12:         Config: C:\Users\T\AppData\Roaming\FAHClient\config.xml
16:41:12:******************************** Build ********************************
16:41:12:        Version: 7.5.1
16:41:12:           Date: May 11 2018
16:41:12:           Time: 13:06:32
16:41:12:     Repository: Git
16:41:12:       Revision: 4705bf53c635f88b8fe85af7675557e15d491ff0
16:41:12:         Branch: master
16:41:12:       Compiler: Visual C++ 2008
16:41:12:        Options: /TP /nologo /EHa /wd4297 /wd4103 /Ox /MT
16:41:12:       Platform: win32 10
16:41:12:           Bits: 32
16:41:12:           Mode: Release
16:41:12:******************************* System ********************************
16:41:12:            CPU: Intel(R) Xeon(R) CPU E3-1230 v3 @ 3.30GHz
16:41:12:         CPU ID: GenuineIntel Family 6 Model 60 Stepping 3
16:41:12:           CPUs: 8
16:41:12:         Memory: 3.94GiB
16:41:12:    Free Memory: 1.84GiB
16:41:12:        Threads: WINDOWS_THREADS
16:41:12:     OS Version: 6.2
16:41:12:    Has Battery: false
16:41:12:     On Battery: false
16:41:12:     UTC Offset: -5
16:41:12:            PID: 4672
16:41:12:            CWD: C:\Users\T\AppData\Roaming\FAHClient
16:41:12:             OS: Windows 10 Enterprise
16:41:12:        OS Arch: AMD64
16:41:12:           GPUs: 2
16:41:12:          GPU 0: Bus:5 Slot:0 Func:0 NVIDIA:5 GM206 [GeForce GTX 960] 2308
16:41:12:          GPU 1: Bus:1 Slot:0 Func:0 AMD:5 Baffin [Polaris11]
16:41:12:  CUDA Device 0: Platform:0 Device:0 Bus:5 Slot:0 Compute:5.2 Driver:10.2
16:41:12:OpenCL Device 0: Platform:0 Device:0 Bus:1 Slot:0 Compute:1.2 Driver:2766.5
16:41:12:  Win32 Service: false
16:41:12:***********************************************************************
16:41:12:<config>
16:41:12:  <!-- Folding Core -->
16:41:12:  <checkpoint v='10'/>
16:41:12:
16:41:12:  <!-- Network -->
16:41:12:  <proxy v=':8080'/>
16:41:12:
16:41:12:  <!-- Slot Control -->
16:41:12:  <power v='full'/>
16:41:12:
16:41:12:  <!-- User Information -->
16:41:12:  <passkey v='********************************'/>
16:41:12:  <team v='111065'/>
16:41:12:  <user v='timpster'/>
16:41:12:
16:41:12:  <!-- Folding Slots -->
16:41:12:  <slot id='0' type='CPU'>
16:41:12:    <client-type v='advanced'/>
16:41:12:    <cpus v='4'/>
16:41:12:  </slot>
16:41:12:  <slot id='1' type='GPU'/>
16:41:12:</config>
16:41:12:Trying to access database...
16:41:12:Successfully acquired database lock
16:41:12:Enabled folding slot 00: READY cpu:4
16:41:12:Enabled folding slot 01: READY gpu:0:GM206 [GeForce GTX 960] 2308
16:41:12:WU00:FS00:Connecting to 65.254.110.245:8080
16:41:12:WU01:FS01:Connecting to 65.254.110.245:8080
16:41:13:WU00:FS00:Assigned to work server 155.247.166.219
16:41:13:WU00:FS00:Requesting new work unit for slot 00: READY cpu:4 from 155.247.166.219
16:41:13:WU00:FS00:Connecting to 155.247.166.219:8080
16:41:13:WU01:FS01:Assigned to work server 128.252.203.10
16:41:13:WU01:FS01:Requesting new work unit for slot 01: READY gpu:0:GM206 [GeForce GTX 960] 2308 from 128.252.203.10
16:41:13:WU01:FS01:Connecting to 128.252.203.10:8080
16:41:13:WU00:FS00:Downloading 1.78MiB
16:41:14:WU01:FS01:Downloading 75.10MiB
16:41:15:WU00:FS00:Download complete
16:41:15:WU00:FS00:Received Unit: id:00 state:DOWNLOAD error:NO_ERROR project:14104 run:0 clone:489 gen:4 core:0xa7 unit:0x000000050002894b5dae06d5966ce9c4
16:41:15:WU00:FS00:Starting
16:41:15:WU00:FS00:Running FahCore: "C:\Program Files (x86)\FAHClient/FAHCoreWrapper.exe" C:\Users\T\AppData\Roaming\FAHClient\cores/cores.foldingathome.org/Win32/AMD64/AVX/Core_a7.fah/FahCore_a7.exe -dir 00 -suffix 01 -version 705 -lifeline 4672 -checkpoint 10 -np 4
16:41:15:WU00:FS00:Started FahCore on PID 9256
16:41:16:WU00:FS00:Core PID:9400
16:41:16:WU00:FS00:FahCore 0xa7 started
16:41:17:WU00:FS00:0xa7:*********************** Log Started 2019-10-23T16:41:17Z ***********************
16:41:17:WU00:FS00:0xa7:************************** Gromacs Folding@home Core ***************************
16:41:17:WU00:FS00:0xa7:       Type: 0xa7
16:41:17:WU00:FS00:0xa7:       Core: Gromacs
16:41:17:WU00:FS00:0xa7:    Website: https://foldingathome.org/
16:41:17:WU00:FS00:0xa7:  Copyright: (c) 2009-2018 foldingathome.org
16:41:17:WU00:FS00:0xa7:     Author: Joseph Coffland <joseph@cauldrondevelopment.com>
16:41:17:WU00:FS00:0xa7:       Args: -dir 00 -suffix 01 -version 705 -lifeline 9256 -checkpoint 10 -np 4
16:41:17:WU00:FS00:0xa7:     Config: <none>
16:41:17:WU00:FS00:0xa7:************************************ Build *************************************
16:41:17:WU00:FS00:0xa7:    Version: 0.0.17
16:41:17:WU00:FS00:0xa7:       Date: Apr 27 2018
16:41:17:WU00:FS00:0xa7:       Time: 16:19:36
16:41:17:WU00:FS00:0xa7: Repository: Git
16:41:17:WU00:FS00:0xa7:   Revision: 21359963583d09ec2063ef946399441c4df4ccd7
16:41:17:WU00:FS00:0xa7:     Branch: master
16:41:17:WU00:FS00:0xa7:   Compiler: Visual C++ 2008
16:41:17:WU00:FS00:0xa7:    Options: /TP /nologo /EHa /wd4297 /wd4103 /Ox /MT
16:41:17:WU00:FS00:0xa7:   Platform: win32 10
16:41:17:WU00:FS00:0xa7:       Bits: 64
16:41:17:WU00:FS00:0xa7:       Mode: Release
16:41:17:WU00:FS00:0xa7:       SIMD: avx_256
16:41:17:WU00:FS00:0xa7:************************************ System ************************************
16:41:17:WU00:FS00:0xa7:        CPU: Unknown
16:41:17:WU00:FS00:0xa7:     CPU ID: 
16:41:17:WU00:FS00:0xa7:       CPUs: 8
16:41:17:WU00:FS00:0xa7:     Memory: 3.94GiB
16:41:17:WU00:FS00:0xa7:Free Memory: 1.74GiB
16:41:17:WU00:FS00:0xa7:    Threads: WINDOWS_THREADS
16:41:17:WU00:FS00:0xa7: OS Version: 6.2
16:41:17:WU00:FS00:0xa7:Has Battery: false
16:41:17:WU00:FS00:0xa7: On Battery: false
16:41:17:WU00:FS00:0xa7: UTC Offset: -5
16:41:17:WU00:FS00:0xa7:        PID: 9400
16:41:17:WU00:FS00:0xa7:        CWD: C:\Users\T\AppData\Roaming\FAHClient\work
16:41:17:WU00:FS00:0xa7:         OS: Windows 10 Pro
16:41:17:WU00:FS00:0xa7:    OS Arch: AMD64
16:41:17:WU00:FS00:0xa7:********************************************************************************
16:41:17:WU00:FS00:0xa7:Project: 14104 (Run 0, Clone 489, Gen 4)
16:41:17:WU00:FS00:0xa7:Unit: 0x000000050002894b5dae06d5966ce9c4
16:41:17:WU00:FS00:0xa7:Reading tar file core.xml
16:41:17:WU00:FS00:0xa7:Reading tar file frame4.tpr
16:41:17:WU00:FS00:0xa7:Digital signatures verified
16:41:17:WU00:FS00:0xa7:Calling: mdrun -s frame4.tpr -o frame4.trr -cpt 10 -nt 4
16:41:17:WU00:FS00:0xa7:Steps: first=5000000 total=1250000
16:41:17:6:127.0.0.1:New Web connection
16:41:18:WU00:FS00:0xa7:Completed 1 out of 1250000 steps (0%)
16:41:19:31:127.0.0.1:New Web connection
16:41:20:WU01:FS01:Download 26.80%
16:41:26:WU01:FS01:Download 51.93%
16:41:32:WU01:FS01:Download 79.57%
16:41:36:WU01:FS01:Download complete
16:41:36:WU01:FS01:Received Unit: id:01 state:DOWNLOAD error:NO_ERROR project:14277 run:0 clone:41 gen:18 core:0x21 unit:0x0000001580fccb0a5d98ab6284e22b71
16:41:36:WU01:FS01:Starting
16:41:36:ERROR:WU01:FS01:Failed to start core: OpenCL device matching slot 1 not found, try setting 'opencl-index' manually
16:41:36:WU01:FS01:Starting
16:41:36:ERROR:WU01:FS01:Failed to start core: OpenCL device matching slot 1 not found, try setting 'opencl-index' manually
16:42:37:WU01:FS01:Starting
16:42:37:ERROR:WU01:FS01:Failed to start core: OpenCL device matching slot 1 not found, try setting 'opencl-index' manually

I've rebooted, with no change, I'm going to reinstall the program.

Posted: **Wed Oct 23, 2019 4:58 pm**

Yes I've read about Windows update drivers not being the same, how stupid is that?! So I've got 440. whatever for the "game ready drivers" and I get the following log from a freshly installed folding at home setup with zero changes other than starting the GPU because it starts out on medium.

Code: Select all

*********************** Log Started 2019-10-23T16:52:58Z ***********************
16:52:58:************************* Folding@home Client *************************
16:52:58:        Website: https://foldingathome.org/
16:52:58:      Copyright: (c) 2009-2018 foldingathome.org
16:52:58:         Author: Joseph Coffland <joseph@cauldrondevelopment.com>
16:52:58:           Args: --open-web-control
16:52:58:         Config: <none>
16:52:58:******************************** Build ********************************
16:52:58:        Version: 7.5.1
16:52:58:           Date: May 11 2018
16:52:58:           Time: 13:06:32
16:52:58:     Repository: Git
16:52:58:       Revision: 4705bf53c635f88b8fe85af7675557e15d491ff0
16:52:58:         Branch: master
16:52:58:       Compiler: Visual C++ 2008
16:52:58:        Options: /TP /nologo /EHa /wd4297 /wd4103 /Ox /MT
16:52:58:       Platform: win32 10
16:52:58:           Bits: 32
16:52:58:           Mode: Release
16:52:58:******************************* System ********************************
16:52:58:            CPU: Intel(R) Xeon(R) CPU E3-1230 v3 @ 3.30GHz
16:52:58:         CPU ID: GenuineIntel Family 6 Model 60 Stepping 3
16:52:58:           CPUs: 8
16:52:58:         Memory: 3.94GiB
16:52:58:    Free Memory: 1.81GiB
16:52:58:        Threads: WINDOWS_THREADS
16:52:58:     OS Version: 6.2
16:52:58:    Has Battery: false
16:52:58:     On Battery: false
16:52:58:     UTC Offset: -5
16:52:58:            PID: 2864
16:52:58:            CWD: C:\Users\T\AppData\Roaming\FAHClient
16:52:58:             OS: Windows 10 Enterprise
16:52:58:        OS Arch: AMD64
16:52:58:           GPUs: 0
16:52:58:  CUDA Device 0: Platform:0 Device:0 Bus:5 Slot:0 Compute:5.2 Driver:10.2
16:52:58:OpenCL Device 0: Platform:0 Device:0 Bus:1 Slot:0 Compute:1.2 Driver:2766.5
16:52:58:  Win32 Service: false
16:52:58:***********************************************************************
16:52:58:<config>
16:52:58:  <!-- Folding Slots -->
16:52:58:</config>
16:52:58:Connecting to assign1.foldingathome.org:8080
16:52:58:Updated GPUs.txt
16:52:58:Read GPUs.txt
16:52:58:Trying to access database...
16:52:59:Successfully acquired database lock
16:52:59:Enabled folding slot 00: PAUSED cpu:5 (not configured)
16:52:59:Enabled folding slot 01: PAUSED gpu:0:GM206 [GeForce GTX 960] 2308 (not configured)
16:52:59:Enabled folding slot 02: PAUSED gpu:1:Baffin [Polaris11] (not configured)
16:53:03:22:127.0.0.1:New Web connection
16:53:34:FS00:Paused
16:53:38:FS02:Paused
16:54:00:Saving configuration to config.xml
16:54:00:<config>
16:54:00:  <!-- Slot Control -->
16:54:00:  <power v='full'/>
16:54:00:
16:54:00:  <!-- Folding Slots -->
16:54:00:  <slot id='0' type='CPU'>
16:54:00:    <paused v='true'/>
16:54:00:  </slot>
16:54:00:  <slot id='1' type='GPU'/>
16:54:00:  <slot id='2' type='GPU'>
16:54:00:    <paused v='true'/>
16:54:00:  </slot>
16:54:00:</config>
16:54:00:Set client configured
16:54:00:WU00:FS01:Connecting to 65.254.110.245:8080
16:54:00:WU00:FS01:Connecting to 65.254.110.245:8080
16:54:00:WU00:FS01:Assigned to work server 155.247.166.219
16:54:00:WU00:FS01:Requesting new work unit for slot 01: READY gpu:0:GM206 [GeForce GTX 960] 2308 from 155.247.166.219
16:54:00:WU00:FS01:Connecting to 155.247.166.219:8080
16:54:01:WU00:FS01:Downloading 27.46MiB
16:54:07:WU00:FS01:Download 57.82%
16:54:10:WU00:FS01:Download complete
16:54:10:WU00:FS01:Received Unit: id:00 state:DOWNLOAD error:NO_ERROR project:14196 run:13 clone:133 gen:8 core:0x21 unit:0x0000000f0002894b5d924686067a3f1c
16:54:10:WU00:FS01:Downloading core from http://cores.foldingathome.org/Win32/AMD64/NVIDIA/Fermi/Core_21.fah
16:54:10:WU00:FS01:Connecting to cores.foldingathome.org:80
16:54:10:WU00:FS01:FahCore 21: Downloading 3.47MiB
16:54:14:WU00:FS01:FahCore 21: Download complete
16:54:14:WU00:FS01:Valid core signature
16:54:14:WU00:FS01:Unpacked 11.80MiB to cores/cores.foldingathome.org/Win32/AMD64/NVIDIA/Fermi/Core_21.fah/FahCore_21.exe
16:54:14:WU00:FS01:Starting
16:54:14:ERROR:WU00:FS01:Failed to start core: OpenCL device matching slot 1 not found, try setting 'opencl-index' manually
16:54:14:WU00:FS01:Starting
16:54:14:ERROR:WU00:FS01:Failed to start core: OpenCL device matching slot 1 not found, try setting 'opencl-index' manually

Posted: **Wed Oct 23, 2019 5:54 pm**

Someone else has already reported having problems with the version 440 drivers, installing an older non-game ready version fixed things up. Try the ;latest WHQL driver downloaded directly from nVidia

Posted: **Thu Oct 24, 2019 1:33 am**

Alright, I have a folder for GPU drivers (I download them manually for Nvidia, don't want the slowness of Gefore Experience Program) and so I've got several for this year, and I'll try the drivers from August: version 430.64. I'll finish the GPU (they like to be dumped or just erased when I restart) work unit, and update tomorrow.

Posted: **Thu Oct 24, 2019 2:40 pm**

This topic is where the problem with the "game ready" 440 driver was reported - viewtopic.php?f=80&t=31950. Later in the topic it is mentioned that nVidia has since released an updated WHQL version of that driver, no report yet on whether that works for folding.

Posted: **Thu Oct 24, 2019 3:14 pm**

440.97 works, if you find the original 440 issue, he was using an insider version, not a WHQL certified version.

Posted: **Thu Oct 24, 2019 6:40 pm**

Well for me 440.97 does NOT work. I just started to uninstall my drivers, but noticed the driver version, and so I even took a picture of it so that you know I'm being honest. I think it was the certified driver, unless there are two different 440.97 drivers.

I'm going to revert to the older ones and report back.

After I uninstalled the Nvidia drivers, I rebooted and received this error: "The code execution cannot proceed because OpenCL.dll was not found. Reinstalling the program max fix this problem."

I'm going to reinstall both AMD and Nvidia drivers now. AMD drivers first since they are still installed and may contain OpenCL stuff. Then I'll reinstall the AMD drivers (an updated version) and then the Nvidia stuff.

19.10.1 (Optional) on the AMD driver update choice, and the August driver for Nvidia 430.64.

Turns out Windows was installing 388.xx drivers on the Nvidia side RIGHT AFTER I rebooted and had uninstalled the Nvidia drivers. So I went into Device Manager and deleted the driver software for that device, and also changed "Advanced System Settings" / Hardware tab / "device installation settings" and changed the settings to "No". Now I understand the issue, and others can too.

Posted: **Thu Oct 24, 2019 9:55 pm**

WindowsUpdate dictates a minimum version number for whatever device the desktop is going to display on. Then it's a matter of finding OpenCL -- either a version that came with the NVidida driver or something from khronos.org/

What I usually do is go to https://www.geforce.com/drivers and install the recommended WHQL version >= whatever windows has installed. You do need to specify your NVidia device since specific versions do not work with other devices.That version also installs a specific version of CUDA and certain versions of OpenCL run on top of specific versions of CUDA. By starting this way, many of the potential conflicts are avoided.

(I have two different NV GPUs and at one time, it was difficult to find the same version of NV drivers that worked with both of them.)

I don't have AMD GPUs in the same machine so I avoid some of the potential driver issues that might arise from one more set of potential incompatibilities.

Folding Forum

Old "OpenCL device matching slot 1 not found" issue

Old "OpenCL device matching slot 1 not found" issue

Re: Old "OpenCL device matching slot 1 not found" issue

Re: Old "OpenCL device matching slot 1 not found" issue

Re: Old "OpenCL device matching slot 1 not found" issue

Re: Old "OpenCL device matching slot 1 not found" issue

Re: Old "OpenCL device matching slot 1 not found" issue

Re: Old "OpenCL device matching slot 1 not found" issue

Re: Old "OpenCL device matching slot 1 not found" issue

Re: Old "OpenCL device matching slot 1 not found" issue

Re: Old "OpenCL device matching slot 1 not found" issue

[Solved Old drivers] "OpenCL device matching not found" issu

Re: Old "OpenCL device matching slot 1 not found" issue