Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

MPI synchronisation freezes in ca 1% of simulations #6

Open
FilipDominec opened this issue Dec 9, 2016 · 0 comments
Open

MPI synchronisation freezes in ca 1% of simulations #6

FilipDominec opened this issue Dec 9, 2016 · 0 comments
Assignees
@FilipDominec

Comments

@FilipDominec
Copy link
Owner

FilipDominec commented Dec 9, 2016 •
edited
Loading

There is some deadlock in the python-meep HDF export or sync() function; I am suspicious it is the multiprocessing communication. The simulation silently hangs after the FDTD timestepping is finished and has to be terminated manually.

Observed on Ubuntu 16.04 with openmpi 1.10.2. This never happened to me on previous versions of Ubuntu, although I used a very similar installation procedure for python meep (https://github.com/FilipDominec/python-meep-install).

Currently, I have no clue how to resolve this except for debugging openmpi, which is beyond my capabilities.
@FilipDominec FilipDominec self-assigned this Dec 9, 2016
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment
Assignees

@FilipDominec FilipDominec

Labels
None yet
Projects
None yet
Milestone
No milestone
Development

No branches or pull requests
1 participant
@FilipDominec