petsc-3.5.0 2014-06-30
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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