Re: [Getfem-users] Generic assembly brick crashes Matlab

[Walker, Ryan T. (GSFC-615.0)[UNIV OF MARYLAND]]

Thanks, Yves —

I went back to very basic expressions after the more complicated _expression_ I actually wanted didn’t work.

The easiest way to trigger the error is to add the line

gf_model_set(md,'add linear generic assembly brick', mim, 'Grad_u.Grad_Test_u’);

to demo_bilaplacian.m.

I will try what Kostas suggested today and let you know if it works.

Best regards,

Ryan

On Apr 3, 2015, at 2:56 AM, Yves Renard <address@hidden> wrote:

Dear Ryan,

I would add that the espression 'Grad_u.Grad_Test_u' is very basic and is part of the very classical terms which has always been operational. If you can, you may also send us a short version of the program that triggers the error.

Yves.



Le 02/04/2015 21:23, Konstantinos Poulios a écrit :

Dear Ryan,

would it be possible to fetch the latest development version of GetFEM++ from the svn repo, as described in

http://download.gna.org/getfem/html/homepage/python/install.html

and tell us if you can still reproduce the crash?

BR

Kostas

On Thu, Apr 2, 2015 at 4:52 PM, Walker, Ryan T. (GSFC-615.0)[UNIV OF MARYLAND] <address@hidden> wrote:

I’m trying to get generic assembly bricks working with the Matlab interface.

The code "gf_model_set(md,'add linear generic assembly brick', mim, 'u*Test_u’);” works fine.

However, if I change the _expression_ to something involving derivatives, like ‘Grad_u.Grad_Test_u’ or ‘Hess_u:Hess_Test_u’,

Matlab has an internal error (no specific error message) and shuts down.

Based on the main C++ documentation, the expressions that cause Matlab to crash look legal. What’s going wrong here?

I’m using version 4.3.2 with Matlab 2014a.

Thanks,

Ryan

**********************************************

Dr. Ryan T. Walker

Earth System Science Interdisciplinary Center

University of Maryland at College Park

Cryospheric Sciences Laboratory, Code 615

NASA Goddard Space Flight Center

8800 Greenbelt Road

Greenbelt, MD 20771 USA

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  Yves Renard (address@hidden)       tel : (33) 04.72.43.87.08
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