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. Thus 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/dm/impls/plex/tutorials/ex11.c
src/dm/tutorials/ex15.c
src/ksp/ksp/tutorials/ex42.c
src/ksp/ksp/tutorials/ex55.c
src/ksp/ksp/tutorials/ex73.c
src/snes/tutorials/ex12.c
src/snes/tutorials/ex13.c
src/snes/tutorials/ex26.c
src/snes/tutorials/ex30.c
src/snes/tutorials/ex47cu.cu
src/snes/tutorials/ex48.c

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Index of all manual pages