petsc-3.7.1 2016-05-15
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PetscSFScatterBegin

begin pointwise scatter operation from multi-roots to leaves, to be completed with PetscSFScatterEnd()

Synopsis

#include "petscsf.h" 
PetscErrorCode PetscSFScatterBegin(PetscSF sf,MPI_Datatype unit,const void *multirootdata,void *leafdata)
Collective Many br

Input Arguments

sf - star forest Many br
unit - data type Many br
multirootdata - root buffer to send to each leaf, one unit of data per leaf Many br

Output Argument

leafdata -leaf data to be update with personal data from each respective root Many br

Many br

See Also

PetscSFComputeDegreeBegin(), PetscSFScatterBegin()

Level:intermediate
Location:
src/vec/is/sf/interface/sf.c
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