petsc-3.8.4 2018-03-24
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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

Input Arguments

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

Output Argument

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

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