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[Bug 1041084] Re: memory leak while assigning boost::python attributes

 

Thanks Vaclav,
Actually I don't see a difference between Yade and Woo regarding [1]. So I am puzzled...
Also surprised by the fact that make_setter takes "return_by_value" [2], but clearly I need more boost-reading to really understand.

[2]
make_setter(&thisClass::attr,py::return_value_policy<py::return_by_value>())

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https://bugs.launchpad.net/bugs/1041084

Title:
  memory leak while assigning boost::python attributes

Status in Yet Another Dynamic Engine:
  New

Bug description:
  I detected a memory leak in O.bodies.erase, when facets were erased (spheres are erased without memory leak!).
  In the attachment you will find two files, where you can reproduce the bug.

  1. Open a terminal with three tabs.
  2. Run top or htop in the first terminal tab
  3. In the second terminal tab run yade input file "memoryleak-erase-facets.py"
  4. Get the pid from first terminal tab (example 31667) and edit "get-memory-info.py"
  5. Run "python get-memory-info.py" in the third terminal tab and wait (ca. 5 min) to the end of the calculation.

  You will get an output file called "fig-memoryleak-erase-facets.png",
  where you can see the effect of the memoryleak.

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References