PetscObjectGetComm

Gets the MPI communicator for any PetscObject regardless of the type.

Synopsis

#include "petscsys.h"    
PetscErrorCode PetscObjectGetComm(PetscObject obj, MPI_Comm *comm)

Not Collective

Input Parameter

• obj - any PETSc object, for example a Vec, Mat or KSP. It must be cast with a (PetscObject), for example, PetscObjectGetComm((PetscObject)mat,&comm);

Output Parameter

• comm - the MPI communicator

See Also

PetscObject, PetscObjectComm()

Level

advanced

Location

src/sys/objects/gcomm.c

Examples

src/snes/tutorials/ex30.c
src/snes/tutorials/ex55.c
src/snes/tutorials/ex63.c
src/ksp/ksp/tutorials/ex42.c
src/ksp/ksp/tutorials/ex73.c
src/snes/tutorials/ex26.c
src/ksp/ksp/tutorials/ex55.c
src/dm/tutorials/ex15.c
src/dm/impls/plex/tutorials/ex11.c
src/snes/tutorials/ex7.c

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