precice / precice/python-bindings

Ctrl-C does not interrupt shell during calls to preCICE

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bug
Dominant language
Cython
Stars
30
Forks
19
PR merge metrics
No merged PRs in 30d

Description

I have noticed that, when e.g. inside precice.initialize(), pressing Ctrl+C does not interrupt the program. This I have only observed in Python and it seems to be a common issue with subprocesses / threads in Python.

You can reproduce this problem by running e.g. one one Python solverdummy participant, without starting a second one, and trying to kill it. I will simply ignore the keyboard input.

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Research direction

Reproduce the issue with one Python solverdummy participant and no second participant, blocking in precice.initialize() while pressing Ctrl-C. Read the Python binding entry point and its subprocess or thread handling, using the linked SIGINT references as background; done means Ctrl-C interrupts and terminates the waiting program.

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Assessment

Tech stack
python
Domain
api
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
45/100

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