Odd that on one of my Computers I cannot Fold or Crunch on the Graphics Cards.
Failed or Error while computing, this happened starting some Seti GPU Tasks.
 
This is what I get if I try to run any Amicable GPU Tasks.
 
<core_client_version>7.8.3</core_client_version>
<![CDATA[
<message>
(unknown error) - exit code -1 (0xffffffff)</message>
<stderr_txt>
Initializing prime tables...done
OpenCL.cpp, line 294: Preferences:
<project_preferences>
<max_jobs>0</max_jobs>
<max_cpus>4</max_cpus>
<kernel_size_amd>20</kernel_size_amd>
<kernel_size_nvidia>22</kernel_size_nvidia>
</project_preferences>

OpenCL.cpp, line 307: Kernel size for NVIDIA GPU has been set to 22
OpenCL.cpp, line 326: clCreateContext returned error 999
15:31:53 (3748): called boinc_finish(-1)

</stderr_txt>
]]>
 
This from Milky Way

Stderr output
<core_client_version>7.8.3</core_client_version>
<![CDATA[
<message>
Error performing inpage operation.
 (0x3e7) - exit code 999 (0x3e7)</message>
<stderr_txt>
<search_application> milkyway_separation 1.46 Windows x86 double OpenCL </search_application>
Reading preferences ended prematurely
BOINC GPU type suggests using OpenCL vendor 'NVIDIA Corporation'
Error loading Lua script 'astronomy_parameters.txt': [string "number_parameters: 4..."]:1: '<name>' expected near '4' 
Switching to Parameter File 'astronomy_parameters.txt'
<number_WUs> 5 </number_WUs>
<number_params_per_WU> 20 </number_params_per_WU>
Using AVX path
Found 1 platform
Platform 0 information:
  Name: NVIDIA CUDA
  Version: OpenCL 1.2 CUDA 9.1.104
  Vendor: NVIDIA Corporation
  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_d3d9_sharing cl_nv_d3d10_sharing cl_khr_d3d10_sharing cl_nv_d3d11_sharing cl_nv_copy_opts cl_nv_create_buffer
  Profile: FULL_PROFILE
Using device 0 on platform 0
Found 2 CL devices
Device 'GeForce GTX 1080 Ti' (NVIDIA Corporation:0x10de) (CL_DEVICE_TYPE_GPU)
Board: 
Driver version: 388.59
Version: OpenCL 1.2 CUDA
Compute capability: 6.1
Max compute units: 28
Clock frequency: 1670 Mhz
Global mem size: 11811160064
Local mem size: 49152
Max const buf size: 65536
Double extension: cl_khr_fp64
Error creating contextTrying to show unknown cl_int 999
 (999): Unknown cl_int
Error getting device and contextTrying to show unknown cl_int 999
 (999): Unknown cl_int
Failed to calculate likelihood
Using AVX path
Found 1 platform
Platform 0 information:
  Name: NVIDIA CUDA
  Version: OpenCL 1.2 CUDA 9.1.104
  Vendor: NVIDIA Corporation
  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_d3d9_sharing cl_nv_d3d10_sharing cl_khr_d3d10_sharing cl_nv_d3d11_sharing cl_nv_copy_opts cl_nv_create_buffer
  Profile: FULL_PROFILE
Using device 0 on platform 0
Found 2 CL devices
Device 'GeForce GTX 1080 Ti' (NVIDIA Corporation:0x10de) (CL_DEVICE_TYPE_GPU)
Board: 
Driver version: 388.59
Version: OpenCL 1.2 CUDA
Compute capability: 6.1
Max compute units: 28
Clock frequency: 1670 Mhz
Global mem size: 11811160064
Local mem size: 49152
Max const buf size: 65536
Double extension: cl_khr_fp64
Error creating contextTrying to show unknown cl_int 999
 (999): Unknown cl_int
Error getting device and contextTrying to show unknown cl_int 999
 (999): Unknown cl_int
Failed to calculate likelihood
Using AVX path
Found 1 platform
Platform 0 information:
  Name: NVIDIA CUDA
  Version: OpenCL 1.2 CUDA 9.1.104
  Vendor: NVIDIA Corporation
  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_d3d9_sharing cl_nv_d3d10_sharing cl_khr_d3d10_sharing cl_nv_d3d11_sharing cl_nv_copy_opts cl_nv_create_buffer
  Profile: FULL_PROFILE
Using device 0 on platform 0
Found 2 CL devices
Device 'GeForce GTX 1080 Ti' (NVIDIA Corporation:0x10de) (CL_DEVICE_TYPE_GPU)
Board: 
Driver version: 388.59
Version: OpenCL 1.2 CUDA
Compute capability: 6.1
Max compute units: 28
Clock frequency: 1670 Mhz
Global mem size: 11811160064
Local mem size: 49152
Max const buf size: 65536
Double extension: cl_khr_fp64
Error creating contextTrying to show unknown cl_int 999
 (999): Unknown cl_int
Error getting device and contextTrying to show unknown cl_int 999
 (999): Unknown cl_int
Failed to calculate likelihood
Using AVX path
Found 1 platform
Platform 0 information:
  Name: NVIDIA CUDA
  Version: OpenCL 1.2 CUDA 9.1.104
  Vendor: NVIDIA Corporation
  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_d3d9_sharing cl_nv_d3d10_sharing cl_khr_d3d10_sharing cl_nv_d3d11_sharing cl_nv_copy_opts cl_nv_create_buffer
  Profile: FULL_PROFILE
Using device 0 on platform 0
Found 2 CL devices
Device 'GeForce GTX 1080 Ti' (NVIDIA Corporation:0x10de) (CL_DEVICE_TYPE_GPU)
Board: 
Driver version: 388.59
Version: OpenCL 1.2 CUDA
Compute capability: 6.1
Max compute units: 28
Clock frequency: 1670 Mhz
Global mem size: 11811160064
Local mem size: 49152
Max const buf size: 65536
Double extension: cl_khr_fp64
Error creating contextTrying to show unknown cl_int 999
 (999): Unknown cl_int
Error getting device and contextTrying to show unknown cl_int 999
 (999): Unknown cl_int
Failed to calculate likelihood
Using AVX path
Found 1 platform
Platform 0 information:
  Name: NVIDIA CUDA
  Version: OpenCL 1.2 CUDA 9.1.104
  Vendor: NVIDIA Corporation
  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_d3d9_sharing cl_nv_d3d10_sharing cl_khr_d3d10_sharing cl_nv_d3d11_sharing cl_nv_copy_opts cl_nv_create_buffer
  Profile: FULL_PROFILE
Using device 0 on platform 0
Found 2 CL devices
Device 'GeForce GTX 1080 Ti' (NVIDIA Corporation:0x10de) (CL_DEVICE_TYPE_GPU)
Board: 
Driver version: 388.59
Version: OpenCL 1.2 CUDA
Compute capability: 6.1
Max compute units: 28
Clock frequency: 1670 Mhz
Global mem size: 11811160064
Local mem size: 49152
Max const buf size: 65536
Double extension: cl_khr_fp64
Error creating contextTrying to show unknown cl_int 999
 (999): Unknown cl_int
Error getting device and contextTrying to show unknown cl_int 999
 (999): Unknown cl_int
Failed to calculate likelihood
14:51:25 (4216): called boinc_finish(999)

</stderr_txt>
]]>

 
Error from Enigma @ Home
 
<core_client_version>7.8.3</core_client_version>
<![CDATA[
<message>
(unknown error) - exit code 195 (0xc3)</message>
<stderr_txt>
wrapper [26118 765 +dev#]: starting (GPU #0)
15:03:37 (3872): wrapper: running enigma_cuda.exe (-d 0 -R -o results.txt 04trigr.cur 04unigr.cur 04ciphertext)
CUDA error: C:/Proj/Other/Enigma/enigma-cuda/enigma-cuda-lib/cuda_code.cu:267:  unknown errorInitialization failed: CUDA error: C:/Proj/Other/Enigma/enigma-cuda/enigma-cuda-lib/cuda_code.cu:267:  unknown error
app exit status: 0x2
15:03:38 (3872): called boinc_finish

</stderr_txt>
]]> 
 
An Old Thread on the Same Issue I think?
https://forums.evga.com/FindPost/2624784
I hope that Driver 388.59 is not the cause for this.....
 
More Info https://devtalk.nvidia.com/default/topic/699610/linux/334-21-driver-returns-999-on-cuinit-cuda-/
 
I did Post this: https://forums.geforce.com/default/topic/1030769/geforce-drivers/official-388-59-game-ready-whql-display-driver-feedback-thread-released-12-7-17-/post/5257702/#5257702
 
I Installed Driver 378.92 back on and all is Well.
 
Stay Away From Driver 388.59 on at least Windows 7.

SM-71
posted in other thread

Read What I Posted in Other Thread.