Re: [sage-devel] Femhub

2011-07-23 Thread Thierry Dumont

Le 22/07/2011 23:35, Ondřej Čertík a écrit :

Hi Thierry,


http://qsnake.com/

And I'll be happy to integrate things back to Sage. I didn't announce
the Qsnake project publicly yet, because I am not happy with the web
pages yet, but I am currently busy finishing some work, and I'll get
to it probably at the end of the summer again.

Which exact things are you interested in integrating back? I'll be
happy to discuss it more.

Ondrej


Hi,

I can give different answers:
1) Sage is said to build an alternative to, maple,..., and *matlab*.
Matlab has a FEM toolbox, so we need something like this.

2) It is clear for me that it would not be serious to introduce an 
industrial fem code: the target is research and teaching.
In France we use Freefem for this, which is quite nice: I do not think 
that Freefem could be introduced in Sage easily, but what actually 
Freefem does is interesting: given a problem (say Navier Stokes 
equations in 2d) you can very easily play with different elements, 
different temporal schemes, different linear solver.
Uou can also define easily your finite element, which is interesting for 
research.


I am very intersted by Qsnake.

Yours,
t.d.

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Re: [sage-devel] Femhub

2011-07-22 Thread Ondřej Čertík
Hi Thierry,

On Thu, Jul 21, 2011 at 10:21 PM, Thierry Dumont
 wrote:
> Hello,
>
> I juts read that Femhub (http://code.google.com/p/femhub/ and many other
> urls) uses parts of Sage. But is there any project to integrate it in the
> Sage distribution (as optional package, for example) ?
>
> This would be interesting for teaching...

I did most of the work on femhub, i.e. from the femhub git repository:

$ git shortlog -ns
  275  Ondrej Certik
   84  Sameer Regmi
4  Pavel Solin
3  Brian E. Granger
1  Aayush Poudel
1  Robert Cimrman
1  root

But I am not involved with the project anymore due to irreconcilable
differences with other owners of the project (I have been, among other
things, removed from the github groups and mailinglists against my
will --- but I don't want to discuss this on the public mailinglist,
feel free to send me a private email though). As such, I have started
a new project:

http://qsnake.com/

And I'll be happy to integrate things back to Sage. I didn't announce
the Qsnake project publicly yet, because I am not happy with the web
pages yet, but I am currently busy finishing some work, and I'll get
to it probably at the end of the summer again.

Which exact things are you interested in integrating back? I'll be
happy to discuss it more.

Ondrej

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[sage-devel] Femhub

2011-07-21 Thread Thierry Dumont

Hello,

I juts read that Femhub (http://code.google.com/p/femhub/ and many other 
urls) uses parts of Sage. But is there any project to integrate it in 
the Sage distribution (as optional package, for example) ?


This would be interesting for teaching...

Yours
t.d.

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[sage-devel] femhub 0.9.7 released

2009-09-23 Thread Ondrej Certik

Hi,

I just released FEMhub 0.9.7.

web page: http://femhub.org/

Our mission: To create an open-source distribution featuring many
finite element codes, along with a web notebook and a unified Python
interface. We want FEMhub to become an alternative to commercial FEM
codes.

Source + binaries are available at:

http://sage.math.washington.edu/home/ondrej/femhub/

e.g. the source code:

http://sage.math.washington.edu/home/ondrej/femhub/femhub-0.9.7.tar

and binaries:

http://sage.math.washington.edu/home/ondrej/femhub/femhub-0.9.7-ubuntu32.tar.gz
http://sage.math.washington.edu/home/ondrej/femhub/femhub-0.9.7-ubuntu64.tar.gz
http://sage.math.washington.edu/home/ondrej/femhub/femhub-0.9.7-gentoo64.tar.gz

I will upload there binaries for other architectures including Mac and
Windows once they build.

Changes in this release:

* femhub builds on Windows (in cygwin), follow the README.txt in the
source tarball for instructions, thanks to William Stein, Dan Drake
and others. A known problem on Windows is that the notebook doesn't
work and raises an exception on the startup of femhub. Just ignore it
and use femhub from the terminal. This will be fixed in the next
version of femhub.
* it builds in parallel (export MAKE="make -j9"), thanks to John
Hoebing for fixing Judy to build in parallel
* updated Mayavi to the latest svn
* sfepy updated (thanks to Robert Cimrman)

and lots of minor fixes, like better customization of the notebook
(thanks to Sameer Regmi), etc.


Plans for the next release(s):

* switch to the framework build of python on Mac
* fix VTK to build on Mac (I know how to do it thanks to Prabhu) and
maybe in Windows (I got the build up to 67%, so more work is needed)
* use the new notebook that William Stein has just disentangled from
Sage, and fix it to work on windows
* write python wrappers to libmesh and phaml (hp-)FEM codes.


Ondrej

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