> Message: 2 >Date: Fri, 18 Dec 2015 08:21:04 -0800 >From: Justin Chang <jychan...@gmail.com> >To: petsc-users <petsc-users@mcs.anl.gov> >Subject: [petsc-users] Status on parallel mesh reader in DMPlex >Message-ID: > <CAP2=tmief8jrasddxurxz92z25e43ooxxlr+y1oqfsdhfax...@mail.gmail.com > > Content-Type: text/plain; charset="utf-8"
> Hi all, >What's the status on the implementation of the parallel I am actually developing a parallel loader. The loader has two steps: (1) Use 1 core or several cores to read a sequential mesh, and partition it into $np$ parts using a partitioner, $np$ is the number of cores you want to use to do a simulation. Usually, $np$ is large, for example, 10,000 cores. And then we write the partitioned data into the file system as a HDF5 file. (2) Load the partitioned data (HDF5 file) into $np$ cores in parallel. This idea works pretty well for me at this point. But, this loader is not compatible with DMPlex now. However, I could change the code somehow, If this idea is acceptable. You could also implement it by yourself. It is not too bad. >mesh reader/generator for DMPlex meshes? Is anyone actively working on > this? If so is there a branch that I can peek into? Parallel generator is highly nontrivial, I think. It is a very hard topic. > Thanks, > Justin
