[MMTK] new FF terms: bug in Python implementation

Qadir Timerghazin qadir.timerghazin at gmail.com
Wed Apr 8 18:39:39 UTC 2009

Hi All,

I am trying to implement a new FF term using pure Python (without C or
Pyrex interfaces). However, it looks like the pure Python solution is
broken: the mdtest.py example in
Examples/Forcefield/HarmonicOscillator/Python crashes with
segmentation fault. This is a very consistent behaviour: it happens
both for Linux and Mac OS installations, and for the MMTK versions
2.5.17 to 2.5.24 (didn't test the earlier versions). I asked several
colleagues to run the test with their MMTK installations, and they
also get segfaults. Any ideas how to make it work?

Thanks in advance!


Dr. Qadir K. Timerghazin,
NSERC Postdoctoral Fellow

Department of Chemistry
University of Waterloo
200 University Avenue West
Waterloo, ON, Canada N2L 3G1

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