PETSc version 3.17.0
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# DMPlexPartitionLabelInvert

Create a partition label of remote roots from a local root label

### Synopsis

    #include "petscdmplex.h"
    PetscErrorCode DMPlexPartitionLabelInvert(DM dm, DMLabel rootLabel, PetscSF processSF, DMLabel leafLabel)

### Input Parameters

| dm | - The DM
| rootLabel | - DMLabel assigning ranks to local roots
| processSF | - A star forest mapping into the local index on each remote rank

### Output Parameter

| leafLabel | - DMLabel assigning ranks to remote roots

Note: The rootLabel defines a send pattern by mapping local points to remote target ranks. The resulting leafLabel is a receiver mapping of remote roots to their parent rank.

### See Also

DMPlexPartitionLabelCreateSF(), DMPlexDistribute(), DMPlexCreateOverlap()

### Level

developer

### Location

src/dm/impls/plex/plexpartition.c
Index of all DMPLEX routines
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Index of all manual pages