Hi
There are a number of different algorithms used from the Metis package. These may be chosen by an additional parameter {0,1,2,3,4}. Some of the algorithms assume that all elementtypes are the same (I think 0 and 1). Others however should work for any mesh. So say, for example
Code: Select all
ElmerGrid 2 2 mesh -out parmesh -metis 512 2
In your case you perhaps reduced the number of different elements by just choosing one body as a physical group. Generally I prefer to use "Save As" and choose the format 2.0 and tick the box for "Save All". ElmerGrid will then automatically renumber and drop the unnecessary entities. Of course, there may really be cases where only a subset is needed, or one wants to do the numbering in gsmh. Then physical groups may of course be used.
-Peter