PetscSFReduceWithMemTypeBegin#
begin reduction of leafdata into rootdata with explicit memory types, to be completed with call to PetscSFReduceEnd()
Synopsis#
#include "petscsf.h"
PetscErrorCode PetscSFReduceWithMemTypeBegin(PetscSF sf, MPI_Datatype unit, PetscMemType leafmtype, const void *leafdata, PetscMemType rootmtype, void *rootdata, MPI_Op op)
Collective
Input Parameters#
sf - star forest
unit - data type
leafmtype - memory type of leafdata
leafdata - values to reduce
rootmtype - memory type of rootdata
op - reduction operation
Output Parameter#
rootdata - result of reduction of values from all leaves of each root
See Also#
PetscSF, PetscSFBcastBegin(), PetscSFReduceBegin(), PetscSFReduceEnd()
Level#
intermediate
Location#
Index of all PetscSF routines
Table of Contents for all manual pages
Index of all manual pages