petsc-3.14.6 2021-03-30
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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

PetscObjectComm()

Level

advanced

Location

src/sys/objects/gcomm.c

Examples

src/dm/tutorials/ex15.c.html
src/ksp/ksp/tutorials/ex42.c.html
src/ksp/ksp/tutorials/ex55.c.html
src/ksp/ksp/tutorials/ex73.c.html
src/snes/tutorials/ex5.c.html
src/snes/tutorials/ex12.c.html
src/snes/tutorials/ex30.c.html
src/snes/tutorials/ex48.c.html
src/snes/tutorials/ex77.c.html
src/snes/tutorials/ex47cu.cu.html
src/ts/tutorials/ex7.c.html

Index of all Sys routines
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Index of all manual pages