PCApply_Shell & ghosts...

Eric Chamberland Eric.Chamberland at giref.ulaval.ca
Wed Aug 13 15:41:06 CDT 2008


Hi,

we are using PETSc in our code and we have a problem with, I think, the 
ghosted values that we expect.

We developed our own pre-conditioner, and try to use it in a parallel 
environment.  With other precondtioners (PETSc built-in), everything 
works fine.  But with our home-made one, here is the problem that we have:

When PCApply_Shell give use the vectors, there are no "ghost" values in 
them...  In our code, we expect to always have these values...

Not having the ghosts in the vectors passed by PCApply_shell, is that a 
normal behavior?

Thanks for the attention,

Eric




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