PETSc version 3.16.5
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# PetscProcessTree

Prepares tree data to be displayed graphically

### Synopsis

    #include "petscsys.h"
    PetscErrorCode  PetscProcessTree(PetscInt n,const PetscBool mask[],const PetscInt parentid[],PetscInt *Nlevels,PetscInt **Level,PetscInt **Levelcnt,PetscInt **Idbylevel,PetscInt **Column)

Not Collective

### Input Parameters

| n | - number of values
| mask | - indicates those entries in the tree, location 0 is always masked
| parentid | - indicates the parent of each entry

### Output Parameters

| Nlevels | - the number of levels
| Level | - for each node tells its level
| Levelcnts | - the number of nodes on each level
| Idbylevel | - a list of ids on each of the levels, first level followed by second etc
| Column | - for each id tells its column index

### Notes

This code is not currently used

### See Also

PetscSortReal(), PetscSortIntWithPermutation()

### Level

developer

### Location

src/sys/utils/sorti.c
Index of all Sys routines
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