petsc-3.14.6 2021-03-30
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 Arguments
| sf | - star forest
|
| unit | - data type
|
| leafmtype | - memory type of leafdata
|
| leafdata | - values to reduce
|
| rootmtype | - memory type of rootdata
|
| op | - reduction operation
|
Output Arguments
| rootdata | - result of reduction of values from all leaves of each root
|
See Also
PetscSFBcastBegin(), PetscSFReduceBegin()
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