[petsc-users] How to obtain the local matrix from a global matrix in DMDA?

[liluo]

Dear developers,


I created a DMDA object and obtain the local vector from a global vector by 
using DMGlobalToLocalBegin/End.

How can I obtain the corresponding local matrix from the global matrix?

In my case, the global matrix is of MPIBAIJ type created by 
DMCreateMatrix(da,MATBAIJ,&A);


Bests,

LI