Does local mesh keep the region number

Dear all,

When I parallelize my fsi code, I have a problem about the mesh region number on each local processor.

In my sequential code, I separate the conforming mesh as fluid(red color) and solid part(black color) as

Then after buildDmesh the whole conforming mesh , it is separated by overlapping local meshes(here is 8 processors) as

Since after buildDmesh, my mesh Th used on varf becomes local now

My question is that does the local mesh on each processor keep the region number as the whole mesh? For example, for this local mesh, does it keep the region number ?

Yes, region number are not modified.

Many thanks. And I find that this post Large scale FSI example with parallel implementation - #3 by clthu is very helpful for me now in order to parallelise my fsi code.