search

ipython / ipyparallel

IPython Parallel: Interactive Parallel Computing in Python
https://ipyparallel.readthedocs.io/
Other
2.59k stars 1k forks source link

segfault in ipengine on linux with windows controller #280

Open cycomanic opened 7 years ago

cycomanic commented 7 years ago

I'm running controller and the client on a windows host. I start an engine on a linux machine (using ipengine --file=ipcontroller-engine.json) and the engine connects fine. If I then start processing in qtconsole under windows and do the following:

import ipyparallel as ipp
c=ipp.Client()
dview=c[:]
with dview.sync_imports():
    import numpy

The engine shuts down with a segfault: “ipengine --file=ipcontroller-en…” terminated by signal SIGSEGV (Address boundary error) This seems to be independent of the imported module.

ipyparallel is version 6.0.2 on both systems installed via pip under linux and using conda in windows. Both systems are running python3.

minrk commented 7 years ago

That's super interesting! Can you execute any simple code at all (without numpy), such as:

import os
dview.apply_sync(os.getpid)

?

It's possible that something funny is happening with numpy.