Stderr output

<core_client_version>8.2.8</core_client_version>
<![CDATA[
<message>
process exited with code 195 (0xc3, -61)</message>
<stderr_txt>
2026-06-01 18:20:48 (11869): wrapper (7.24.26018): starting
2026-06-01 18:20:48 (11869): wrapper (7.24.26018): starting
2026-06-01 18:20:48 (11869): wrapper: running ./mfakto (-d 0)
2026-06-01 18:20:48 (11869): wrapper: created child process 11871
mfakto 0.16.0-beta.5 (64-bit build)


Runtime options
  INI file                  mfakto.ini
  Verbosity                 1
  SieveOnGPU                yes
  MoreClasses               yes
  GPUSievePrimes            81157
  GPUSieveProcessSize       24 Kib
  GPUSieveSize              96 Mib
  FlushInterval             0
  WorkFile                  worktodo.txt
  ResultsFile               results.txt
  JSONResultsFile           results.json.txt
  LogFile                   mfakto.log
  Checkpoints               enabled
  CheckpointDelay           60 s
  Stages                    disabled
  StopAfterFactor           bit level
  PrintMode                 compact
  Logging                   disabled
  V5UserID                  none
  ComputerID                none
  TimeStampInResults        yes
  LegacyResultsTxt          no
  VectorSize                2
  GPUType                   AUTO
  UseBinfile                mfakto_Kernels.elf

Compile-time options

Select device - Get device info:
Warning: Unknown GPU name, assuming a GCN (Graphics Core Next) device. Please
      post the name to the GIMPS forum or GitHub to have it added to mfakto.

      Device name:   AMD Radeon RX 580 Series (radeonsi, polaris10, ACO, DRM 3.42, 5.15.0-179-generic) (AMD)
      mfakto thread: https://www.mersenneforum.org/node/11037
      GitHub:        https://github.com/primesearch/mfakto/issues

      You can also set GPUType in mfakto.ini to avoid this message.

OpenCL device info
  name                      AMD Radeon RX 580 Series (radeonsi, polaris10, ACO, DRM 3.42, 5.15.0-179-generic) (AMD)
  device (driver) version   OpenCL 3.0  (25.3.3 (git-a9c6420d8c))
  maximum threads per block 1024
  maximum threads per grid  1073741824
  number of multiprocessors 36 (2304 compute elements)
  clock rate                1366 MHz

Automatic parameters
  threads per grid          0
  optimizing kernels for    GCN

Compiling kernels.
 
	BUILD OUTPUT
<built-in>:1:10: fatal error: 'opencl-c-base.h' file not found
Error executing LLVM compilation action.

 	END OF BUILD OUTPUT
Error -11 (Build program failure): clBuildProgram
ERROR: load_kernels(0) failed
2026-06-01 18:20:49 (11869): ./mfakto exited; CPU time 0.080708
2026-06-01 18:20:49 (11869): app exit status: 0x2
2026-06-01 18:20:49 (11869): called boinc_finish(195)

</stderr_txt>
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