PetscSFReduceEnd#
end a reduction operation started with PetscSFReduceBegin() or PetscSFReduceWithMemTypeBegin()
Synopsis#
#include "petscsf.h"
PetscErrorCode PetscSFReduceEnd(PetscSF sf, MPI_Datatype unit, const void *leafdata, void *rootdata, MPI_Op op)
Collective
Input Parameters#
sf - star forest
unit - data type
leafdata - values to reduce
op - reduction operation
Output Parameter#
rootdata - result of reduction of values from all leaves of each root
See Also#
PetscSF, PetscSFSetGraph(), PetscSFBcastEnd(), PetscSFReduceBegin(), PetscSFReduceWithMemTypeBegin()
Level#
intermediate
Location#
Examples#
src/ts/tutorials/ex30.c
src/vec/is/sf/tutorials/ex1.c
src/vec/is/sf/tutorials/ex1f.F90
Implementations#
PetscSFReduceEnd_Allgatherv() in src/vec/is/sf/impls/basic/allgatherv/sfallgatherv.c
PetscSFReduceEnd_Basic() in src/vec/is/sf/impls/basic/sfbasic.c
PetscSFReduceEnd_Window() in src/vec/is/sf/impls/window/sfwindow.c
Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages