[petsc-users] some problem with the VecCreateGhost.

[Jed Brown]

丁老师 <ztdepyahoo at 163.com> writes:

> What the function of "restore the local form",  

It synchronizes state.

> can i use VecDestroy to free the local form only;

No, use VecGhostRestoreLocalForm.  Also, do not perform operations with
the global Vec before restoring the local form.
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