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