unit tests

[Tyler Reddy]

Has anyone performed a full unit test on the most recent development build? Running nosetests directly (or even from Python) with multiple cores seems to cause some kind of problem that impedes progress for hours and using a single processor seems to get stuck at a different point (there seems to be a memory leak as well--completely crippled a machine with 6GB of RAM, and steadily rising consumption so far on a machine with 32GB).

I don't think it's supposed to take hours or consume that much memory. I'm using ubuntu 12.04 and running commands like this from testsuite/MDAnalysisTests:

nosetests --processes=1 -v

[Oliver Beckstein]

Hi Tyler,

On 24 Apr, 2013, at 14:10, Tyler Reddy wrote:

> Has anyone performed a full unit test on the most recent development build?

Just tried it on Ubuntu 12.04, 8 GB RAM:

I ran from the MDAnalysisTests/ directory:

nosetests -v
Ran 561 tests in 400.328s

or use from anywhere

python -c 'from MDAnalysis.tests import test; test(label="full", verbose=3, extra_argv=["--exe"])'

> Running nosetests directly (or even from Python) with multiple cores

I haven't had much luck with parallel testing so I tend to always run the tests in single mode.

> seems to cause some kind of problem that impedes progress for hours and using a single processor seems to get stuck at a different point (there seems to be a memory leak as well--completely crippled a machine with 6GB of RAM, and steadily rising consumption so far on a machine with 32GB).

On Mac OS X I did observe pretty high memory consumption (~ 1 GB), which still seems to high, but I can't pinpoint where it is. When writing UnitTests it is important to add cleanup methods the 'del self.universe' or similar.

> I don't think it's supposed to take hours or consume that much memory. I'm using ubuntu 12.04 and running commands like this from testsuite/MDAnalysisTests:
>
> nosetests --processes=1 -v

As I said, I can't reproduce the failure.

Maybe other people can try it and add their experience.

Oliver

--
Oliver Beckstein * orbe...@gmx.net
skype: orbeckst * orbe...@gmail.com

[Tyler Reddy]

It seems that specifying a single process with --processes=1 and discarding the process flag entirely produces different behaviours. Anyways, if I discard the processes flag it appears to do what I'd expect.

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