mpi meep

[efrenaserra]

Folks - I'm having issues after following the installation instructions at: https://meep.readthedocs.io/en/latest/Installation/, both meep and parallel meep. Neither execution of straight-waveguide.py ever finishes. Also, I get the following error when I do as follows:

1] conda activate pmp
2] mpirun -n 4 python3 $HOME/pymeep/python/examples/straight-waveguide.py

Here's the error:
mpiexec.hydra -n 4 python3 $HOME/pymeep/python/examples/straight-waveguide.py
(base) [serra@archer ~]$ conda activate pmp
(pmp) [serra@archer ~]$ bash -x pmp.job

• mpiexec.hydra -n 4 python3 /users/serra/pymeep/python/examples/straight-waveguide.py
  Using MPI version 4.0, 4 processes

---

Initializing structure...
Splitting into 4 chunks by voxels
time for choose_chunkdivision = 0.000222206 s
Working in 2D dimensions.
Computational cell is 16 x 8 x 0 with resolution 10
block, center = (0,0,0)
size (1e+20,1,1e+20)
axes (1,0,0), (0,1,0), (0,0,1)
dielectric constant epsilon diagonal = (12,12,12)
time for set_epsilon = 0.00536799 s

libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast
libGL error: unable to load driver: swrast_dri.so
libGL error: failed to load driver: swrast

[oskooi]

The error is related to libGL which is not a Meep dependency. The problem could be due to a package conflict in one of the Meep dependencies installed in your system directories. For example, your system may already contain an MPI library which conflicts with the mpich used by the Meep Conda package.

You can try installing the Conda package or building Meep from source on a clean machine (e.g., a virtual machine in the public cloud running Ubuntu).