petsc-3.4.2 2013-07-02

# PetscSF

PETSc object for setting up and managing the communication of certain entries of arrays and Vecs between MPI processes.

### Synopsis

    typedef struct _p_PetscSF* PetscSF;

PetscSF uses the concept of star forests to indicate and determine the communication patterns concisely and efficiently. A star http://en.wikipedia.org/wiki/Star_(graph_theory) forest is simply a collection of trees of height 1. The leave nodes represent "ghost locations" for the root nodes.

### See Also

PetscSFCreate(), VecScatter, VecScatterCreate()

Level:intermediate
Location: src/vec/is/sf/../../../../include/petscsftypes.h
Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages

### Examples

src/vec/is/sf/examples/tutorials/ex1.c.html