loading system configuration
Using all default parameter values
INFO: Using directory: "display"
INFO: Using existing c-file: ./BNL_H8_simple.c
INFO: Using existing binary: ./BNL_H8_simple.out
INFO: ===
INFO: call to ./BNL_H8_simple.out failed with Command './BNL_H8_simple.out --trace=2 --ncount=1.0 --dir=display --format=McCode --bufsiz=10000000 --no-output-files --yes' returned non-zero exit status 255.
Traceback (most recent call last):
File "/Users/peterwillendrup/micromamba/envs/mcstas-dev/share/mcstas/tools/Python/mcrun/mcrun.py", line 661, in <module>
main()
~~~~^^
File "/Users/peterwillendrup/micromamba/envs/mcstas-dev/share/mcstas/tools/Python/mcrun/mcrun.py", line 633, in main
mcstas.run()  # in mccode.py
~~~~~~~~~~^^
File "/Users/peterwillendrup/micromamba/envs/mcstas-dev/share/mcstas/tools/Python/mcrun/mccode.py", line 403, in run
return self.runMPI(args, pipe, override_mpi)
~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^
File "/Users/peterwillendrup/micromamba/envs/mcstas-dev/share/mcstas/tools/Python/mcrun/mccode.py", line 458, in runMPI
return Process(binpath).run(args, pipe=pipe)
~~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^
File "/Users/peterwillendrup/micromamba/envs/mcstas-dev/share/mcstas/tools/Python/mcrun/mccode.py", line 78, in run
raise err
File "/Users/peterwillendrup/micromamba/envs/mcstas-dev/share/mcstas/tools/Python/mcrun/mccode.py", line 74, in run
proc = run(command, shell=True, check=True, text=True, capture_output=pipe)
File "/Users/peterwillendrup/micromamba/envs/mcstas-dev/lib/python3.14/subprocess.py", line 578, in run
raise CalledProcessError(retcode, process.args,
output=stdout, stderr=stderr)
subprocess.CalledProcessError: Command './BNL_H8_simple.out --trace=2 --ncount=1.0 --dir=display --format=McCode --bufsiz=10000000 --no-output-files --yes' returned non-zero exit status 255.
Using all default parameter values

Traceback (most recent call last):
  File "/Users/peterwillendrup/micromamba/envs/mcstas-dev/share/mcstas/tools/Python/mcdisplay/webgl-classic/mcdisplay.py", line 199, in <module>
    main(**args)
    ~~~~^^^^^^^^
  File "/Users/peterwillendrup/micromamba/envs/mcstas-dev/share/mcstas/tools/Python/mcdisplay/webgl-classic/mcdisplay.py", line 166, in main
    instrument = reader.read_instrument()
  File "/Users/peterwillendrup/micromamba/envs/mcstas-dev/share/mcstas/tools/Python/mccodelib/mcdisplayutils.py", line 46, in read_instrument
    self.pipeman.join()
    ~~~~~~~~~~~~~~~~~^^
  File "/Users/peterwillendrup/micromamba/envs/mcstas-dev/share/mcstas/tools/Python/mccodelib/pipetools.py", line 345, in join
    raise self.reader.exc_obj
  File "/Users/peterwillendrup/micromamba/envs/mcstas-dev/share/mcstas/tools/Python/mccodelib/pipetools.py", line 284, in run
    raise Exception("TraceReader - mcrun process exited with code: %s" % str(poll))
Exception: TraceReader - mcrun process exited with code: 1