It seems that a lot of GPU problems revolve around specific versions of drivers. Though NVidia has their own support structure, you can often learn from information reported by others who fold.
Hi,
I started folding last week to help fight the Corona virus. Unfortunately, after updating to the new Nvidia driver (440.64), FAHControl shows that Cuda and OpenCL have not been detected, so the assigned GPU job won't start. I'm running Arch Linux (latest updates installed as of writing this).
*********************** Log Started 2020-03-13T17:25:39Z ***********************
17:25:39:************************* Folding@home Client *************************
17:25:39: Website: https://foldingathome.org/
17:25:39: Copyright: (c) 2009-2018 foldingathome.org
17:25:39: Author: Joseph Coffland <joseph@cauldrondevelopment.com>
17:25:39: Args:
17:25:39: Config: /var/lib/private/fah/config.xml
17:25:39:******************************** Build ********************************
17:25:39: Version: 7.5.1
17:25:39: Date: May 11 2018
17:25:39: Time: 19:59:04
17:25:39: Repository: Git
17:25:39: Revision: 4705bf53c635f88b8fe85af7675557e15d491ff0
17:25:39: Branch: master
17:25:39: Compiler: GNU 6.3.0 20170516
17:25:39: Options: -std=gnu++98 -O3 -funroll-loops
17:25:39: Platform: linux2 4.14.0-3-amd64
17:25:39: Bits: 64
17:25:39: Mode: Release
17:25:39:******************************* System ********************************
17:25:39: CPU: AMD A10-7860K Radeon R7, 12 Compute Cores 4C+8G
17:25:39: CPU ID: AuthenticAMD Family 21 Model 56 Stepping 1
17:25:39: CPUs: 4
17:25:39: Memory: 23.50GiB
17:25:39:Free Memory: 20.60GiB
17:25:39: Threads: POSIX_THREADS
17:25:39: OS Version: 5.5
17:25:39:Has Battery: false
17:25:39: On Battery: false
17:25:39: UTC Offset: 1
17:25:39: PID: 1991
17:25:39: CWD: /var/lib/private/fah
17:25:39: OS: Linux 5.5.8-arch1-1 x86_64
17:25:39: OS Arch: AMD64
17:25:39: GPUs: 1
17:25:39: GPU 0: Bus:1 Slot:0 Func:0 NVIDIA:7 GP106 [GeForce GTX 1060 6GB] 4372
17:25:39: CUDA: Not detected: cuInit() returned 999
17:25:39: OpenCL: Not detected: clGetPlatformIDs() returned -1001
17:25:39:***********************************************************************
17:25:39:<config>
17:25:39: <!-- Network -->
17:25:39: <proxy v=':8080'/>
17:25:39:
17:25:39: <!-- Slot Control -->
17:25:39: <power v='full'/>
17:25:39:
17:25:39: <!-- User Information -->
17:25:39: <passkey v='********************************'/>
17:25:39: <team v='223518'/>
17:25:39: <user v='8bitMicroFan'/>
17:25:39:
17:25:39: <!-- Folding Slots -->
17:25:39: <slot id='1' type='GPU'/>
17:25:39:</config>
17:25:39:Trying to access database...
17:25:39:Successfully acquired database lock
17:25:39:Enabled folding slot 01: READY gpu:0:GP106 [GeForce GTX 1060 6GB] 4372
17:25:39:ERROR:No compute devices matched GPU #0 NVIDIA:7 GP106 [GeForce GTX 1060 6GB] 4372. You may need to update your graphics drivers.
17:25:40:WU00:FS01:Connecting to 65.254.110.245:8080
17:25:41:WU00:FS01:Assigned to work server 140.163.4.231
17:25:41:WU00:FS01:Requesting new work unit for slot 01: READY gpu:0:GP106 [GeForce GTX 1060 6GB] 4372 from 140.163.4.231
17:25:41:WU00:FS01:Connecting to 140.163.4.231:8080
17:25:42:WU00:FS01:Downloading 29.59MiB
17:25:48:WU00:FS01:Download 13.73%
17:25:54:WU00:FS01:Download 23.66%
17:26:00:WU00:FS01:Download 29.15%
17:26:06:WU00:FS01:Download 37.60%
17:26:12:WU00:FS01:Download 52.81%
17:26:18:WU00:FS01:Download 67.38%
17:26:24:WU00:FS01:Download 76.67%
17:26:30:WU00:FS01:Download 81.95%
17:26:36:WU00:FS01:Download 84.07%
17:26:42:WU00:FS01:Download 87.87%
17:26:48:WU00:FS01:Download 93.15%
17:26:54:WU00:FS01:Download 96.74%
17:26:57:WU00:FS01:Download complete
17:26:57:WU00:FS01:Received Unit: id:00 state:DOWNLOAD error:NO_ERROR project:11749 run:0 clone:4628 gen:1 core:0x22 unit:0x000000018ca304e75e6a8016c8dbb4fb
17:26:57:WU00:FS01:Starting
17:26:57:ERROR:WU00:FS01:Failed to start core: OpenCL device matching slot 1 not found, try setting 'opencl-index' manually
17:26:57:WU00:FS01:Starting
17:26:57:ERROR:WU00:FS01:Failed to start core: OpenCL device matching slot 1 not found, try setting 'opencl-index' manually
17:27:57:WU00:FS01:Starting
17:27:57:ERROR:WU00:FS01:Failed to start core: OpenCL device matching slot 1 not found, try setting 'opencl-index' manually
At this point I'm not sure why cuInit() and clGetPlatformIDs() return errors. All the required packages are installed. It worked before updating the driver.
Number of platforms 1
Platform Name NVIDIA CUDA
Platform Vendor NVIDIA Corporation
Platform Version OpenCL 1.2 CUDA 10.2.141
Platform Profile FULL_PROFILE
Platform Extensions cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_fp64 cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll cl_nv_copy_opts cl_nv_create_buffer cl_khr_int64_base_atomics cl_khr_int64_extended_atomics
Platform Extensions function suffix NV
Platform Name NVIDIA CUDA
Number of devices 1
Device Name GeForce GTX 1060 6GB
Device Vendor NVIDIA Corporation
Device Vendor ID 0x10de
Device Version OpenCL 1.2 CUDA
Driver Version 440.64
Device OpenCL C Version OpenCL C 1.2
Device Type GPU
Device Topology (NV) PCI-E, 01:00.0
Device Profile FULL_PROFILE
Device Available Yes
Compiler Available Yes
Linker Available Yes
Max compute units 10
Max clock frequency 1835MHz
Compute Capability (NV) 6.1
Device Partition (core)
Max number of sub-devices 1
Supported partition types None
Supported affinity domains (n/a)
Max work item dimensions 3
Max work item sizes 1024x1024x64
Max work group size 1024
Preferred work group size multiple 32
Warp size (NV) 32
Preferred / native vector sizes
char 1 / 1
short 1 / 1
int 1 / 1
long 1 / 1
half 0 / 0 (n/a)
float 1 / 1
double 1 / 1 (cl_khr_fp64)
Half-precision Floating-point support (n/a)
Single-precision Floating-point support (core)
Denormals Yes
Infinity and NANs Yes
Round to nearest Yes
Round to zero Yes
Round to infinity Yes
IEEE754-2008 fused multiply-add Yes
Support is emulated in software No
Correctly-rounded divide and sqrt operations Yes
Double-precision Floating-point support (cl_khr_fp64)
Denormals Yes
Infinity and NANs Yes
Round to nearest Yes
Round to zero Yes
Round to infinity Yes
IEEE754-2008 fused multiply-add Yes
Support is emulated in software No
Address bits 64, Little-Endian
Global memory size 6373179392 (5.935GiB)
Error Correction support No
Max memory allocation 1593294848 (1.484GiB)
Unified memory for Host and Device No
Integrated memory (NV) No
Minimum alignment for any data type 128 bytes
Alignment of base address 4096 bits (512 bytes)
Global Memory cache type Read/Write
Global Memory cache size 491520 (480KiB)
Global Memory cache line size 128 bytes
Image support Yes
Max number of samplers per kernel 32
Max size for 1D images from buffer 268435456 pixels
Max 1D or 2D image array size 2048 images
Max 2D image size 16384x32768 pixels
Max 3D image size 16384x16384x16384 pixels
Max number of read image args 256
Max number of write image args 16
Local memory type Local
Local memory size 49152 (48KiB)
Registers per block (NV) 65536
Max number of constant args 9
Max constant buffer size 65536 (64KiB)
Max size of kernel argument 4352 (4.25KiB)
Queue properties
Out-of-order execution Yes
Profiling Yes
Prefer user sync for interop No
Profiling timer resolution 1000ns
Execution capabilities
Run OpenCL kernels Yes
Run native kernels No
Kernel execution timeout (NV) Yes
Concurrent copy and kernel execution (NV) Yes
Number of async copy engines 2
printf() buffer size 1048576 (1024KiB)
Built-in kernels (n/a)
Device Extensions cl_khr_global_int32_base_atomics cl_khr_global_int32_extended_atomics cl_khr_local_int32_base_atomics cl_khr_local_int32_extended_atomics cl_khr_fp64 cl_khr_byte_addressable_store cl_khr_icd cl_khr_gl_sharing cl_nv_compiler_options cl_nv_device_attribute_query cl_nv_pragma_unroll cl_nv_copy_opts cl_nv_create_buffer cl_khr_int64_base_atomics cl_khr_int64_extended_atomics
NULL platform behavior
clGetPlatformInfo(NULL, CL_PLATFORM_NAME, ...) NVIDIA CUDA
clGetDeviceIDs(NULL, CL_DEVICE_TYPE_ALL, ...) Success [NV]
clCreateContext(NULL, ...) [default] Success [NV]
clCreateContextFromType(NULL, CL_DEVICE_TYPE_DEFAULT) No platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_CPU) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_GPU) No platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_ACCELERATOR) No devices found in platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_CUSTOM) Invalid device type for platform
clCreateContextFromType(NULL, CL_DEVICE_TYPE_ALL) No platform
ICD loader properties
ICD loader Name OpenCL ICD Loader
ICD loader Vendor OCL Icd free software
ICD loader Version 2.2.12
ICD loader Profile OpenCL 2.2
nvidia-smi is another nifty built-in util you can use to check out nvidia related info.
It is more than likely an issue with your nvidia drivers being out of whack after the upgrade process. I found out last week that stacking different nvidia drivers can kill it's functionality (FAH would work but I killed Steam!) You might be able to fix it by hopping into run level 3, removing all nvidia packages, install 440, and then reboot.
I had the same problem, on Manjaro. I guess you're using foldingathome-noroot; it was told me that cuda requires root, and I was suggested to install foldingathome (root client) instead. I've not found a way to allow foldingathome-noroot to detect cuda, but everything works with foldingathome (root).