[Flent-users] Re: bursts test does not complete (WAS: ERROR: Runner Burst 0 failed check: No command set for SilentProcessRunner)

[ch <ch@ntrv.dk>]

On 30/03/2023 00.10, Toke Høiland-Jørgensen wrote:
>> I fell like I am getting more gray hairs by the hours. 🤕 I cannot
>> figure out why this happens.
>>
>> The burst test seems to run. Flent never "completes". Resulting in no
>> data output. :|
> It's crashing in the parsing step, leading to a hang; this is visible on
> stdout, so I guess your runner script hides that?

True. Switched to using systemd timers instead of crontab, saving logs 
from stdout/stderr going forwards. 💾 Had not initially thought about 
logging the output from the wrapper script. 🤦

> $ ./run-flent bursts -l 10
> Starting Flent 2.1.1+git.6959463f using Python 3.10.10.
> Starting bursts test. Expected run time: 10 seconds.
> Exception in thread Thread-8 (_handle_results):
> Traceback (most recent call last):
>    File "/usr/lib/python3.10/threading.py", line 1016, in _bootstrap_inner
>      self.run()
>    File "/usr/lib/python3.10/threading.py", line 953, in run
>      self._target(*self._args, **self._kwargs)
>    File "/usr/lib/python3.10/multiprocessing/pool.py", line 595, in _handle_results
>      cache[job]._set(i, obj)
>    File "/usr/lib/python3.10/multiprocessing/pool.py", line 779, in _set
>      self._callback(self._value)
>    File "/home/alrua/source/flent/flent/runners.py", line 625, in recv_result
>      result, raw_values, metadata = res
> TypeError: cannot unpack non-iterable NoneType object
> 
> Should be fixed in the latest master, please try that.

Installed the upgrade. 🤞

> Also, BTW, not sure what your wrapper script does, but Flent has a
> built-in batch run facility which may be helpful for such multi-run
> tests...

I wrote the wrapper script, due to not knowing about flent's batch 
capabilities initially. 🙄 Will look into the built-in batch 
capabilities instead of a wrapper script.

-ch