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Re: [ff3d-users] Re: Re: Re: Reading GMSH hexahedral mesh.

From: Stephane Del Pino
Subject: Re: [ff3d-users] Re: Re: Re: Reading GMSH hexahedral mesh.
Date: Wed, 14 Mar 2007 07:26:45 +0100
User-agent: KMail/1.9.5


Le mardi 13 mars 2007 11:29, Cécile Giorla a écrit :
> FunctionExpressionConvection.cpp:74: convection is not implemented for
> this kind of mesh
> UNEXPECTED ERROR: this should not occure, please report it
Thanks for the report. This requires some work. I will let you know when it is 

> By the way, I have another question :
> Would you tell me how to store a matrix when solving an elliptic PDE and
> re-use it in another iteration? I've seen there is a "memory" option
> which can be set to "matrix = sparse". But is it possible to extract
> this matrix in order to re-use it (like in Freefem++)?
The option you suggest is used if you want to save memory: the matrix is not 
assembled (matrix=none).
There is no way to keep matrix into memory. Again, this optimization is to be 
done but require a big amount of work. There are other optimizations which 
will be more important to do before...

> Another remark : I have got the cvs version taken yesterday, and the
> GMSH reader is different : it now takes into account the number of the
> elementary entity, and no more the number of physical entity. Physical
> entity is more comprehensive for people, is it possible to go back to
> the labeling of elements through the physical entities?
Thanks for the remark, this is fixed, but I cannot commit it in cvs, since 
savannah seems to be down.

Best regards,

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