Dear Dr. Oskooi,
Thank you for your great work.
I have met two problems when I installed PyMeep following your script.
1) In my Arch linux system, swig of version 3.0.12 is installed.
Swig >= 3.09 seems not support renaming the generated meep.py as
__init__.py,
and the following error message was shown when running files in
meep/python/tests.
------------------------------------------------------------------------------------------------
Traceback (most recent call last):
File "/usr/local/lib/python3.6/site-packages/meep/__init__.py", line
14, in swig_import_helper
return importlib.import_module(mname)
File "/usr/lib/python3.6/importlib/__init__.py", line 126, in
import_module
return _bootstrap._gcd_import(name[level:], package, level)
File "<frozen importlib._bootstrap>", line 994, in _gcd_import
File "<frozen importlib._bootstrap>", line 971, in _find_and_load
File "<frozen importlib._bootstrap>", line 953, in
_find_and_load_unlocked
ModuleNotFoundError: No module named '_meep'
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "tests/3rd_harm_1d.py", line 4, in <module>
import meep as mp
File "/usr/local/lib/python3.6/site-packages/meep/__init__.py", line
17, in <module>
_meep = swig_import_helper()
File "/usr/local/lib/python3.6/site-packages/meep/__init__.py", line
16, in swig_import_helper
return importlib.import_module('_meep')
File "/usr/lib/python3.6/importlib/__init__.py", line 126, in
import_module
return _bootstrap._gcd_import(name[level:], package, level)
ModuleNotFoundError: No module named '_meep'
------------------------------------------------------------------------------------------------
This relates the swig issue [https://github.com/swig/swig/issues/769].
A workaround is to edit __init__.py as suggested in
[https://github.com/swig/swig/pull/1105]:
------------------------------------------------------------------------------------------------
--- __init__.py.orig 2017-12-06 10:49:48.054412987 +0900
+++ __init__.py 2017-12-06 10:51:04.182548303 +0900
@@ -8,7 +8,8 @@
if _swig_python_version_info >= (2, 7, 0):
def swig_import_helper():
import importlib
- pkg = __name__.rpartition('.')[0]
+ pkg_parts = __name__.rpartition('.')
+ pkg = pkg_parts[0] if pkg_parts[1] == '.' else pkg_parts[2]
mname = '.'.join((pkg, '_meep')).lstrip('.')
try:
return importlib.import_module(mname)
------------------------------------------------------------------------------------------------
2) With the above workaound, all tests passed except tests/wvg_src.py:
--------------------------------------------------------------------------
mpirun noticed that process rank 0 with PID 0 on node gromit exited on
signal 11 (Segmentation fault).
--------------------------------------------------------------------------
FAIL tests/wvg_src.py (exit status: 139)
With best regards,
Munehiro Nishida
On 2017年12月05日 08:33, Ardavan Oskooi wrote:
Dear Meep community:
We have prepared an installation shell script
<http://ab-initio.mit.edu/%7Eoskooi/meep_discuss/build_meep_python_mpi.sh>
for parallel PyMeep on Ubuntu 16.04. This involves building OpenMPI
and HDF5 from source and linking it with the Python library mpi4py.
Most of the Python tutorial examples have been added to the
documentation
<http://meep.readthedocs.io/en/latest/Python_Tutorials/Basics/>. These
scripts can be found in the python/examples
<https://github.com/stevengj/meep/tree/master/python/examples>
subdirectory of the source.
The official release of PyMeep including additional updates to the
documentation will happen later this month. In the meantime, we
welcome your comments and feedback; particularly bug reports.
Cordially,
Ardavan Oskooi
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