#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
| n | - number of values | |
| mask | - indicates those entries in the tree, location 0 is always masked | |
| parentid | - indicates the parent of each entry |
| 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
Level:developer
Location:src/sys/utils/sorti.c
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