[petsc-users] Dynamically resize the existing PetscVector

[Zhang, Junchao]

Or, you can have your own array and then create PETSc vectors with VecCreateGhostWithArray, so that the memory resizing is managed by yourself.
--Junchao Zhang


On Mon, Dec 17, 2018 at 9:15 AM Shidi Yan via petsc-users <petsc-users at mcs.anl.gov<mailto:petsc-users at mcs.anl.gov>> wrote:
Hello,

I am working on adaptive moving mesh problems. Therefore, the petsc
vector size is constantly changing.
The way I am currently dealing with this change is destroy the petsc vector
first with VecDestroy() and create a new vector with VecCreateGhost().
But I think this is not a really efficient way. So I am wondering if there is
any way to resize the existing PetscVector dynamically.

Thank you for your time.

Kind Regards,
Shidi
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