[petsc-users] DMCreateXXXVector vs VecDuplicate

[Phil Tooley]

Hi all,

Can I get come clarification regarding  DMCreateXXXVector vs
VecDuplicate. The manual says that I can obtain additional vectors with
the latter, does this mean that I *must* only call DMCreateXXXVector
once each for global and local?

I ask because I want multiple instances of an image class all with the
same distributed layout. It makes life much tidier if I can just pass
the DMDA rather than also having to pass vectors to be copied.

Cheers


Phil

-- 
Phil Tooley
Research Software Engineering
University of Sheffield