Hi Nikos ! Am 9. März 2018 09:01:25 MEZ schrieb Nikos Alexandris <[email protected]>: >* Moritz Lennert <[email protected]> [2018-03-08 15:05:46 >+0100]: > >>And another question on GridModule: >> >>For the same module using GridModule to split the task of edge >>detection in a raster map into many parallel tasks, when I want to >>stop the module run using Ctrl-C I get tons of >> >>Process PoolWorker-315: >>Traceback (most recent call last): >>Traceback (most recent call last): >> File "/usr/lib/python2.7/multiprocessing/process.py", line 267, in >>_bootstrap >> File "/usr/lib/python2.7/multiprocessing/process.py", line 267, in >>_bootstrap >> self.run() >> self.run() >> File "/usr/lib/python2.7/multiprocessing/process.py", line 114, in >run >> File "/usr/lib/python2.7/multiprocessing/process.py", line 114, in >run >> self._target(*self._args, **self._kwargs) >> self._target(*self._args, **self._kwargs) >> File "/usr/lib/python2.7/multiprocessing/pool.py", line 102, in >worker >> File "/usr/lib/python2.7/multiprocessing/pool.py", line 102, in >worker >> task = get() >> File "/usr/lib/python2.7/multiprocessing/queues.py", line 374, in >get >> task = get() >> File "/usr/lib/python2.7/multiprocessing/queues.py", line 374, in >get >> racquire() >> racquire() >>KeyboardInterrupt >> >> >>and cannot stop the module, even when flooding the input with Ctrl-Cs. >> >>Any hint how to allow Ctrl-C to stop all subprocesses ? >> >>Moritz > >Moritz, could it be a case related to the ones mentioned in > >https://stackoverflow.com/a/1635084/1172302 >https://stackoverflow.com/a/11816038/1172302
Related yes, but AFAIU GridModule uses multiprocessing, not multithreading. I think it should be possible to modify something in the GridModule class so that it interrupts, but not sure about what exactly (apparently this is specifically a problem in Python 2. In Python 3 it should happen automatically IIUC. Moritz _______________________________________________ grass-dev mailing list [email protected] https://lists.osgeo.org/mailman/listinfo/grass-dev
