[petsc-users] PCASM subdomains

[Amneet Bhalla]

Hi Folks,

I have a basic question regarding matrix size as created by subdomains in
PCASM.

In the PCASMSetLocalSubdomains(PC pc,PetscInt n,IS is[],IS is_local[])
routine, I am defining is[] to be the local+overlapping DOFs and is_local
[] to be the nonoverlapping local DOFs only. Now
if I grab the subksp's from PCASM and print out the matrices, would the
matrix size correspond to size of IS in is[] or in is_local[] dofs? Put in
another words, do the subdomain matrices are defined for just local DOFs or
with local+overlapping DOFs?

Thanks,
-- 
--Amneet
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20150604/da353af6/attachment-0001.html>