Thanks for suggestion. I am going to use a block-based amr. I think I need to know exactly the mesh distribution of blocks across different processors for implementation of amr.
And as a general question, can we set block size of vector on each rank? Thanks Amir From: Matthew Knepley [mailto:knep...@gmail.com] Sent: Tuesday, September 17, 2019 11:04 PM To: Mohammad Hassan <mhbagh...@mail.sjtu.edu.cn> Cc: PETSc <petsc-users@mcs.anl.gov> Subject: Re: [petsc-users] DMPlex Distribution On Tue, Sep 17, 2019 at 9:27 AM Mohammad Hassan via petsc-users <petsc-users@mcs.anl.gov <mailto:petsc-users@mcs.anl.gov> > wrote: Hi I am using DMPlexCreateFromDAG() to construct my DM. Is it possible to set the distribution across processors manually. I mean, how can I set the share of dm on each rank (local)? You could make a Shell partitioner and tell it the entire partition: https://www.mcs.anl.gov/petsc/petsc-master/docs/manualpages/DMPLEX/PetscPartitionerShellSetPartition.html However, I would be surprised if you could do this. It is likely that you just want to mess with the weights in ParMetis. Thanks, Matt Thanks Amir -- What most experimenters take for granted before they begin their experiments is infinitely more interesting than any results to which their experiments lead. -- Norbert Wiener https://www.cse.buffalo.edu/~knepley/ <http://www.cse.buffalo.edu/~knepley/>
