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Copyright 2006-2007 Nanorex, Inc. See LICENSE file for details.
2006 July 31
This was an attempt from a few months back to write a C extension
module for doing finite-element models with Verlet integration, to try
to be compatible with how our simulator works.
I did all that before I found out about hotshot, which is the cool new
profiler in Python. As somebody said, premature optimization is the
root of all evil, and I think I maybe jumped the gun. So going back to
the Python reference implementation, we have:
ncalls tottime percall cumtime percall filename:lineno(function)
10032 14.805 0.001 32.814 0.003 jello.py:73(internalForces)
1123584 10.029 0.000 10.029 0.000 jello.py:43(subvec)
642048 5.362 0.000 5.362 0.000 jello.py:45(scalevec)
481536 4.885 0.000 4.885 0.000 jello.py:41(addvec)
10032 3.082 0.000 6.210 0.001 jello.py:85(verletMomentum)
10032 0.864 0.000 39.955 0.004 jello.py:212(equationsOfMotion)
10366 0.810 0.000 0.810 0.000 jello.py:91(applyForces)
1 0.237 0.237 40.280 40.280 jello.py:223(main)
10033 0.060 0.000 0.060 0.000 jello.py:100(zeroForces)
10032 0.057 0.000 0.057 0.000 jello.py:115(rotate)
152 0.056 0.000 40.041 0.263 jello.py:191(oneFrame)
154 0.017 0.000 0.027 0.000 jello.py:103(draw)
2464 0.010 0.000 0.010 0.000 jello.py:206(draw)
154 0.003 0.000 0.030 0.000 jello.py:199(paintEvent)
152 0.002 0.000 40.043 0.263 jello.py:181(timeout)
1 0.000 0.000 0.000 0.000 jello.py:155(__init__)
1 0.000 0.000 0.000 0.000 jelloGui.py:40(languageChange)
1 0.000 0.000 40.280 40.280 jello.py:239(m)
1 0.000 0.000 0.000 0.000 jelloGui.py:15(__init__)
2 0.000 0.000 0.000 0.000 jelloGui.py:48(__tr)
I am pretty sure I could improve this stuff substantially just by
using Numeric rather than writing a whole bunch of C code. I should
think about that, later.
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