petsc-3.7.1 2016-05-15
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PetscSFReduceEnd

end a reduction operation started with PetscSFReduceBegin()

Synopsis

#include "petscsf.h" 
PetscErrorCode PetscSFReduceEnd(PetscSF sf,MPI_Datatype unit,const void *leafdata,void *rootdata,MPI_Op op)
Collective Many br

Input Arguments

sf - star forest Many br
unit - data type Many br
leafdata - values to reduce Many br
op - reduction operation Many br

Output Arguments

rootdata -result of reduction of values from all leaves of each root Many br

Many br

See Also

PetscSFSetGraph(), PetscSFBcastEnd()

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