Hello,

I keep getting "Computation errors" after 1-2 seconds on BOINC. Here is an example of the task output. I do not know where to start in thsi error output to find out what is going wrong.

Task 2323842052talikarng · log out
Name de_modfit_23_bundle5_NoContraintsWithDisk_1_1524574502_1953384_0
Workunit 1607296201
Created 29 Apr 2018, 8:17:45 UTC
Sent 29 Apr 2018, 8:18:59 UTC
Report deadline 11 May 2018, 8:18:59 UTC
Received 29 Apr 2018, 8:40:17 UTC
Server state Over
Outcome Computation error
Client state Compute error
Exit status 1 (0x1) Unknown error number
Computer ID 772713
Run time 2 sec
CPU time
Validate state Invalid
Credit 0.00
Device peak FLOPS 173.89 GFLOPS
Application version MilkyWay@Home v1.46 (opencl_ati_101)
Peak disk usage 0.02 MB
Stderr output
<core_client_version>7.8.3</core_client_version>
<![CDATA[
<message>
process exited with code 1 (0x1, -255)</message>
<stderr_txt>
<search_application> milkyway_separation 1.46 Linux x86_64 double OpenCL </search_application>
BOINC GPU type suggests using OpenCL vendor 'Advanced Micro Devices, Inc.'
Setting process priority to 0 (13): Permission denied
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: Clover
Version: OpenCL 1.1 Mesa 17.2.8
Vendor: Mesa
Extensions: cl_khr_icd
Profile: FULL_PROFILE
Didn't find preferred platform
Using device 0 on platform 0
Found 1 CL device
Device 'AMD CAYMAN (DRM 2.50.0 / 4.13.0-38-generic, LLVM 5.0.0)' (AMD:0x1002) (CL_DEVICE_TYPE_GPU)
Board:
Driver version: 17.2.8
Version: OpenCL 1.1 Mesa 17.2.8
Compute capability: 0.0
Max compute units: 12
Clock frequency: 890 Mhz
Global mem size: 2147483648
Local mem size: 32768
Max const buf size: 1503238553
Double extension: cl_khr_fp64
clBuildProgram: Build failure (-11): CL_BUILD_PROGRAM_FAILURE
Error building program from source (-11): CL_BUILD_PROGRAM_FAILURE
Error creating integral program from source
Failed to calculate likelihood
Using AVX path
Found 1 platform
Platform 0 information:
Name: Clover
Version: OpenCL 1.1 Mesa 17.2.8
Vendor: Mesa
Extensions: cl_khr_icd
Profile: FULL_PROFILE
Didn't find preferred platform
Using device 0 on platform 0
Found 1 CL device
Device 'AMD CAYMAN (DRM 2.50.0 / 4.13.0-38-generic, LLVM 5.0.0)' (AMD:0x1002) (CL_DEVICE_TYPE_GPU)
Board:
Driver version: 17.2.8
Version: OpenCL 1.1 Mesa 17.2.8
Compute capability: 0.0
Max compute units: 12
Clock frequency: 890 Mhz
Global mem size: 2147483648
Local mem size: 32768
Max const buf size: 1503238553
Double extension: cl_khr_fp64
clBuildProgram: Build failure (-11): CL_BUILD_PROGRAM_FAILURE
Error building program from source (-11): CL_BUILD_PROGRAM_FAILURE
Error creating integral program from source
Failed to calculate likelihood
Using AVX path
Found 1 platform
Platform 0 information:
Name: Clover
Version: OpenCL 1.1 Mesa 17.2.8
Vendor: Mesa
Extensions: cl_khr_icd
Profile: FULL_PROFILE
Didn't find preferred platform
Using device 0 on platform 0
Found 1 CL device
Device 'AMD CAYMAN (DRM 2.50.0 / 4.13.0-38-generic, LLVM 5.0.0)' (AMD:0x1002) (CL_DEVICE_TYPE_GPU)
Board:
Driver version: 17.2.8
Version: OpenCL 1.1 Mesa 17.2.8
Compute capability: 0.0
Max compute units: 12
Clock frequency: 890 Mhz
Global mem size: 2147483648
Local mem size: 32768
Max const buf size: 1503238553
Double extension: cl_khr_fp64
clBuildProgram: Build failure (-11): CL_BUILD_PROGRAM_FAILURE
Error building program from source (-11): CL_BUILD_PROGRAM_FAILURE
Error creating integral program from source
Failed to calculate likelihood
Using AVX path
Found 1 platform
Platform 0 information:
Name: Clover
Version: OpenCL 1.1 Mesa 17.2.8
Vendor: Mesa
Extensions: cl_khr_icd
Profile: FULL_PROFILE
Didn't find preferred platform
Using device 0 on platform 0
Found 1 CL device
Device 'AMD CAYMAN (DRM 2.50.0 / 4.13.0-38-generic, LLVM 5.0.0)' (AMD:0x1002) (CL_DEVICE_TYPE_GPU)
Board:
Driver version: 17.2.8
Version: OpenCL 1.1 Mesa 17.2.8
Compute capability: 0.0
Max compute units: 12
Clock frequency: 890 Mhz
Global mem size: 2147483648
Local mem size: 32768
Max const buf size: 1503238553
Double extension: cl_khr_fp64
clBuildProgram: Build failure (-11): CL_BUILD_PROGRAM_FAILURE
Error building program from source (-11): CL_BUILD_PROGRAM_FAILURE
Error creating integral program from source
Failed to calculate likelihood
Using AVX path
Found 1 platform
Platform 0 information:
Name: Clover
Version: OpenCL 1.1 Mesa 17.2.8
Vendor: Mesa
Extensions: cl_khr_icd
Profile: FULL_PROFILE
Didn't find preferred platform
Using device 0 on platform 0
Found 1 CL device
Device 'AMD CAYMAN (DRM 2.50.0 / 4.13.0-38-generic, LLVM 5.0.0)' (AMD:0x1002) (CL_DEVICE_TYPE_GPU)
Board:
Driver version: 17.2.8
Version: OpenCL 1.1 Mesa 17.2.8
Compute capability: 0.0
Max compute units: 12
Clock frequency: 890 Mhz
Global mem size: 2147483648
Local mem size: 32768
Max const buf size: 1503238553
Double extension: cl_khr_fp64
clBuildProgram: Build failure (-11): CL_BUILD_PROGRAM_FAILURE
Error building program from source (-11): CL_BUILD_PROGRAM_FAILURE
Error creating integral program from source
Failed to calculate likelihood
18:20:06 (5038): called boinc_finish(1)

</stderr_txt>
]]>



And the first few lines from BOINC output:

Sun 29 Apr 2018 18:37:52 AEST | | Starting BOINC client version 7.8.3 for x86_64-pc-linux-gnu
Sun 29 Apr 2018 18:37:52 AEST | | log flags: file_xfer, sched_ops, task
Sun 29 Apr 2018 18:37:52 AEST | | Libraries: libcurl/7.55.1 OpenSSL/1.0.2g zlib/1.2.11 libidn2/2.0.2 libpsl/0.18.0 (+libidn2/2.0.2) librtmp/2.3
Sun 29 Apr 2018 18:37:52 AEST | | Data directory: /var/lib/boinc-client
Sun 29 Apr 2018 18:37:53 AEST | | OpenCL: AMD/ATI GPU 0: AMD CAYMAN (DRM 2.50.0 / 4.13.0-38-generic, LLVM 5.0.0) (driver version 17.2.8, device version OpenCL 1.1 Mesa 17.2.8, 2048MB, 2048MB available, 854 GFLOPS peak)
Sun 29 Apr 2018 18:37:53 AEST | | Host name: jolly-roger
Sun 29 Apr 2018 18:37:53 AEST | | Processor: 8 GenuineIntel Intel(R) Core(TM) i7-2600 CPU @ 3.40GHz [Family 6 Model 42 Stepping 7]
Sun 29 Apr 2018 18:37:53 AEST | | Processor features: fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx rdtscp lm constant_tsc arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf pni pclmulqdq dtes64 monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic popcnt tsc_deadline_timer aes xsave avx lahf_lm epb pti retpoline spec_ctrl tpr_shadow vnmi flexpriority ept vpid xsaveopt dtherm ida arat pln pts
Sun 29 Apr 2018 18:37:53 AEST | | OS: Linux Ubuntu: Ubuntu 17.10 [4.13.0-38-generic]
Sun 29 Apr 2018 18:37:53 AEST | | Memory: 15.65 GB physical, 2.00 GB virtual
Sun 29 Apr 2018 18:37:53 AEST | | Disk: 173.83 GB total, 32.53 GB free
Sun 29 Apr 2018 18:37:53 AEST | | Local time is UTC +10 hours

Did these errors just start? Any recent changes to your hardware or OS?

You can try deleting and re-adding the project maybe? Might need to delete or move the files in your BOINC data directory.

Hello
I have an Amd Radeon 380X graphic card and I have lot's of computation errors almost 50%
Once again It seams that this project has unsolved computation issues on amd/ati graphic cards.

The team of this...so called "project" is probably not up to the task for fixing their own issues with graphic card computation. It is happenning very often, I mean very very often!

So it's a shit project for me !
I won't waste computation time and electricity on Milkyway anymore despite my respectable score and history.

If, like me you have lot's of computation errors with this...?project?
Crunch on Einstein at home wich is issue and error free !

Sincerly
Elvis

Hello
I have an Amd Radeon 380X graphic card and I have lot's of computation errors almost 50%
Once again It seams that this project has unsolved computation issues on amd/ati graphic cards.

The team of this...so called "project" is probably not up to the task for fixing their own issues with graphic card computation. It is happenning very often, I mean very very often!

So it's a shit project for me !
I won't waste computation time and electricity on Milkyway anymore despite my respectable score and history.

If, like me you have lot's of computation errors with this...?project?
Crunch on Einstein at home wich is issue and error free !

Sincerly
Elvis

Check your drivers, they don't appear to have been recognized by Boinc.