Mailman 3 May 2009 - SfePy

Re: sfepy in femhub
by Robert Cimrman May 21, 2009

May 21, 2009

Pavel Solin wrote: > Hi Robert, this is the best news of today! > Pavel Thanks! Now you can (almost) try sfepy yourself. :) Nothing really useful there, though... r. > 2009/5/21 Robert Cimrman <cimr...(a)ntc.zcu.cz> > >> Hi all, >> >> sfepy can be now used within femhub! For an example see [1]. It is still >> very basic, but it works. To try it, follow the instructions at [2]. >> >> r. >> >> [1] http://code.google.com/p/femhub/wiki/ExampleSfePy >> [2] http://code.google.com/p/femhub/ >> > >

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sfepy in femhub
by Robert Cimrman May 21, 2009

May 21, 2009

Hi all, sfepy can be now used within femhub! For an example see [1]. It is still very basic, but it works. To try it, follow the instructions at [2]. r. [1] http://code.google.com/p/femhub/wiki/ExampleSfePy [2] http://code.google.com/p/femhub/

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make sfepy installable
by Robert Cimrman May 12, 2009

May 12, 2009

Hi, I would like to bring the issue [1] to a broader discussion, as not everyone here is also subscribed to the sfepy-issues list. In short - we need to decide what framework (makefiles, distutils, ...) to use to make sfepy installable. Then we can hope to get sfepy to some distributions, notable [2, 3], and also to simplify the eventuality of supporting the Windows. Opinions welcome! r. [1] http://code.google.com/p/sfepy/issues/detail?id=84 [2] http://code.google.com/p/spdproject/ [3] http://www.sagemath.org/

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ANN: SfePy 2009.2
by Robert Cimrman May 12, 2009

May 12, 2009

I am pleased to announce the release of SfePy 2009.2. SfePy (simple finite elements in Python) is a software, distributed under the BSD license, for solving systems of coupled partial differential equations by the finite element method. The code is based on NumPy and SciPy packages. Mailing lists, issue tracking, git repository: http://sfepy.org Home page: http://sfepy.kme.zcu.cz People who contributed to this release: Vladimir Lukes. Major improvements: - new scripts: - isfepy (interactive sfepy) - customized IPython shell for quick "compute and visualize" work - postproc.py - a script to visualize (via mayavi2) results saved in result files - probe.py - a script to probe and plot results along geometrical objects (e.g. lines, rays) intersecting the mesh - automatic html documentation generation via doxygen - extended syntax of equations to allow boundary traces of variables - fixed live plotting via multiprocessing for multi-core machines - short input syntax for LCBC conditions, fields, integrals, materials and solvers - new solvers: - Broyden and Anderson nonlinear solvers (SciPy implementation) - new mesh readers: - Nastran (.bdf) format - Abaqus ascii (.inp) - new example problems, tests and terms Applications: - phononic materials: - plotting improved - caching of eigen-problem solution and Christoffel acoustic tensor - schroedinger.py: - choose and call DFT solver via solver interface For more information on this release, see http://sfepy.googlecode.com/svn/web/releases/2009.2_RELEASE_NOTES.txt Best regards, Robert Cimrman

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update: isfepy
by Robert Cimrman May 11, 2009

May 11, 2009

Hi again! I have taken the isympy code (interactive sympy shell based on ipython), tweaked it, and called isfepy - the interactive sfepy shell. It is still very preliminary, but it opens new possibilities of how sfepy could be deployed, and even now it is usable for the basic stuff, like: In [1]: pb, vec, data = pde_solve('input/poisson.py') In [2]: view = Viewer(pb.get_output_name()) In [3]: view() [1] solves a Poisson equation in 3D by the finite elements, [2] constructs a mayavi2 viewer, and [3] displays the results using the mayavi's mlab.show(). Of course, [1] should work for other input files too. In this way one can quickly run simple problem inputs and view the results immediately. Could you try it, please, when you have some spare moments? The plotting requires mayavi2 (at least 3.1.0), but it is not mandatory - only the step [3] will do nothing. cheers, r.

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Installation Issue--umfpack module cannot be imported
by Minjae May 7, 2009

May 7, 2009

Hello, I would like to try out sfepy, and I am having an installation issue. Scipy no longer as umfpack under scipy.linsolve.umfpack and this seems to create a problem when I run simple.py to install. I looked around and it seems that scipy is moving umfpack to scikits, but I couldn't figure out an easy way around the problem. It seems also that other issues exist with umfpack with other problem, but I couldn't find an exact solution to this particular problem. I was wondering if anyone can share a solution. I am using Ubuntu 9.04 and Python 2.6. Regards, Minjae

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