[petsc-users] Copying to Vec with boundary cells

[Adrian Croucher]

hi

I have a Vec created on a distributed DMPlex (using 
DMCreateGlobalVector() or DMCreateLocalVector()).

I then add FV boundary condition cells to the DMPlex, using 
DMPlexConstructGhostCells().

I can then create a new Vec on the new DM. What is the best way to copy 
the values from the old Vec to the new one?

Regards, Adrian

-- 
Dr Adrian Croucher
Senior Research Fellow
Department of Engineering Science
University of Auckland, New Zealand
email: a.croucher at auckland.ac.nz
tel: +64 (0)9 923 4611