petsc-3.14.6 2021-03-30
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
Examples
src/vec/is/sf/tutorials/ex1.c.html
Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages