PetscSubcommCreate

Create a PetscSubcomm context. This object is used to manage the division of a MPI_Comm into subcommunicators

Synopsis

#include "petscsys.h"    
PetscErrorCode PetscSubcommCreate(MPI_Comm comm, PetscSubcomm *psubcomm)

Collective

Input Parameter

• comm - MPI communicator

Output Parameter

• psubcomm - location to store the PetscSubcomm context

See Also

PetscSubcomm, PetscSubcommDestroy(), PetscSubcommSetTypeGeneral(), PetscSubcommSetFromOptions(), PetscSubcommSetType(), PetscSubcommSetNumber()

Level

advanced

Location

src/sys/objects/subcomm.c

Examples

src/ksp/ksp/tutorials/ex73.c

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