:orphan:
# DMStagMigrateVec
transfer a vector associated with a `DMSTAG` to a vector associated with a compatible `DMSTAG`
## Synopsis
```
PetscErrorCode DMStagMigrateVec(DM dm, Vec vec, DM dmTo, Vec vecTo)
```
Collective
## Input Parameters
- ***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`
## Notes
Extra dof are ignored, and unfilled dof are zeroed.
Currently only implemented to migrate global vectors to global vectors.
For the definition of compatibility of `DM`s, see `DMGetCompatibility()`.
## See Also
[](ch_stag), `DMSTAG`, `DMStagCreateCompatibleDMStag()`, `DMGetCompatibility()`, `DMStagVecSplitToDMDA()`
## Level
advanced
## Location
src/dm/impls/stag/stagutils.c
## Examples
src/dm/impls/stag/tutorials/ex1.c
src/dm/impls/stag/tutorials/ex2.c
src/dm/impls/stag/tutorials/ex3.c
src/dm/impls/stag/tutorials/ex4.c
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[Edit on GitLab](https://gitlab.com/petsc/petsc/-/edit/release/src/dm/impls/stag/stagutils.c)
[Index of all DMStag routines](index.md)
[Table of Contents for all manual pages](/manualpages/index.md)
[Index of all manual pages](/manualpages/singleindex.md)