Actual source code: petscsftypes.h
petsc-3.7.1 2016-05-15
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      1: #if !defined(_PETSCSFTYPES_H)
      2: #define _PETSCSFTYPES_H

      4: /*S
      5:    PetscSF - PETSc object for setting up and managing the communication of certain entries of arrays and Vecs between MPI processes.

      7:    Level: intermediate

      9:   Concepts: star forest

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

     15: .seealso: PetscSFCreate(), VecScatter, VecScatterCreate()
     16: S*/
     17: typedef struct _p_PetscSF* PetscSF;

     19: /*S
     20:    PetscSFNode - specifier of owner and index

     22:    Level: beginner

     24:   Concepts: indexing, stride, distribution

     26: .seealso: PetscSFSetGraph()
     27: S*/
     28: typedef struct {
     29:   PetscInt rank;                /* Rank of owner */
     30:   PetscInt index;               /* Index of node on rank */
     31: } PetscSFNode;

     33: #endif