petsc-3.13.6 2020-09-29
Report Typos and Errors

PetscSFBcastAndOpBegin

 begin pointwise broadcast with root value being reduced to leaf value, to be concluded with call to PetscSFBcastAndOpEnd()

Synopsis

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

Input Arguments

sf - star forest on which to communicate
unit - data type associated with each node
rootdata - buffer to broadcast
op - operation to use for reduction

Output Arguments

leafdata -buffer to be reduced with values from each leaf's respective root

See Also

PetscSFBcastAndOpEnd(), PetscSFBcastBegin(), PetscSFBcastEnd()

Level

intermediate

Location

src/vec/is/sf/interface/sf.c

Examples

src/vec/is/sf/tutorials/ex1.c.html

Implementations

PetscSFBcastAndOpBegin_Allgather in src/vec/is/sf/impls/basic/allgather/sfallgather.c
PetscSFBcastAndOpBegin_Allgatherv in src/vec/is/sf/impls/basic/allgatherv/sfallgatherv.c
PetscSFBcastAndOpBegin_Alltoall in src/vec/is/sf/impls/basic/alltoall/sfalltoall.c
PetscSFBcastAndOpBegin_Gather in src/vec/is/sf/impls/basic/gather/sfgather.c
PetscSFBcastAndOpBegin_Gatherv in src/vec/is/sf/impls/basic/gatherv/sfgatherv.c
PetscSFBcastAndOpBegin_Neighbor in src/vec/is/sf/impls/basic/neighbor/sfneighbor.c
PetscSFBcastAndOpBegin_Basic in src/vec/is/sf/impls/basic/sfbasic.c
PetscSFBcastAndOpBegin_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