On 24/11/09 15:02, Aron Wahlberg wrote:
Hi all,
I tried to mesh a pretty big geometry I'm working on with netgen but ran
out of memory on my 16 GB RAM machine. Is there any chance gmsh is more
efficient?
The default 3D algorithm ("Delaunay") generates about 7 million
tetrahedra per gigabyte of RAM on a 32 bit machine. Gmsh also integrates
Netgen (choose the 3D "Frontal" algorithm), so you can compare both.
I assume making a surface mesh takes less memory than full 3D? If so, I
should be able to make a surface mesh (with the 2D button) even if I run
out of memory for the full 3D in gmsh, right?
Yes. For very large 2D meshes also use the "Delaunay" 2D algorithm.
Aron Wahlberg
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Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science
http://www.montefiore.ulg.ac.be/~geuzaine
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