Topic: partition model with metis for parallel analyses

Dear Borek,

You mention before that metis could be used to partition a model. But if my model has mixed element types which is typical for reinforced concrete members (solid for concrete and truss/beam for steel), how to partition the model then? It seems to me that metis can could partition the model into one type of element. Thank you for your help.

Best Regards,
Xuejian

Re: partition model with metis for parallel analyses

Dear Borek,

I tried T3d with a very simple example in below. But I got an error. Could you please help me take a look at it? Thank you.

vertex 1 xyz 0 1 0
vertex 2 xyz 1 1 0
vertex 3 xyz 1 0 0
vertex 4 xyz 0 0 0
vertex 5 xyz 0 1 5
vertex 6 xyz 1 1 5
vertex 7 xyz 1 0 5
vertex 8 xyz 0 0 5

curve 1 vertex 1 2
curve 2 vertex 2 3
curve 3 vertex 3 4
curve 4 vertex 1 4
curve 5 vertex 5 6
curve 6 vertex 6 7
curve 7 vertex 7 8
curve 8 vertex 5 8
curve 9 vertex 1 5
curve 10 vertex 2 6
curve 11 vertex 3 7
curve 12 vertex 4 8

surface 1 curve 1 4 3 2
surface 2 curve 5 8 7 6
surface 3 curve 1 9 5 10
surface 4 curve 2 10 6 11
surface 5 curve 3 12 7 11
surface 6 curve 4 9 8 12

region 1 boundary surface -1 2 3 4 -5 -6 size def


I use command - T3d -d 0.5.

Best Regards,
Xuejian

3

Re: partition model with metis for parallel analyses

Hi Xuejian,

the problem is that the orientation of outer normals of surfaces bounding the region is opposite, with respect to what you have considered.
Change the signs of all surface ids in region definition.

Borek

Re: partition model with metis for parallel analyses

Hi Borek,

It works. Thank you very much.

Best Regards,
Xuejian