petsc-3.12.5 2020-03-29

DMStagMigrateVec

transfer a vector associated with a DMStag to a vector associated with a compatible DMStag

PetscErrorCode DMStagMigrateVec(DM dm,Vec vec,DM dmTo,Vec vecTo)

Collective

	dm	- the source DMStag object
	vec	- the source vector, compatible with dm
	dmTo	- the compatible destination DMStag object
	vecTo	- the destination vector, compatible with dmTo

Extra dof are ignored, and unfilled dof are zeroed. Currently only implemented to migrate global vectors to global vectors.

advanced