[petsc-users] MatGetSubMatrix for a Nested matrix

[Khai Hong Pham]

Hello Petsc-Users,

In the MatGetSubMatrix, if the matrix mat is a nested matrix, for example [
A00 A01 | A10 A11], and I'd like to get submat  A10. Then the isrow and
iscol will be the index of the subblock matrix which is (1,0) or it must be
the index of all rows, columns of the submat in the mat (like in
MatGetSubMatrix). Please help me to clarify this. Thanks

Khai
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.mcs.anl.gov/pipermail/petsc-users/attachments/20140811/559be7ae/attachment.html>