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 Parameters

• sf - star forest

• unit - data type

• multirootdata - root buffer to send to each leaf, one unit of data per leaf

Output Parameter

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

See Also

PetscSF, PetscSFComputeDegreeBegin(), PetscSFScatterEnd()

Level

intermediate

Location

src/vec/is/sf/interface/sf.c

Examples

src/vec/is/sf/tutorials/ex1.c

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Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages