Dear all, I consider a big mesh which is made of several subdomains (basically a grid, cf attached). My issue is that I do not want to define the subdomains from the big mesh but the contrary: merge all small meshes to obtain the big mesh (because I want all subdomains to be defined on the exact same mesh). My first question is therefore: is there a way to merge several small meshes to one big mesh ? If not, I would like to at least be able to open the solutions on Paraview from one unique file, to avoid opening and setting hundreds of files when I have hundreds of subdomains. I though that creating a pvtu file from all my vtu files should work, since solving my equations on each small mesh is similar to parallel programming on the big mesh. Can you advise me on how to create this pvtu file out of my vtu files (I attach an example of my vtu file on one small mesh)? Thank you very much, Floriane
