petsc-3.14.5 2021-03-03
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# PetscSubcommGetChild

Gets the communicator created by the PetscSubcomm

### Synopsis

    #include "petscsys.h"
    PetscErrorCode  PetscSubcommGetChild(PetscSubcomm scomm,MPI_Comm *ccomm)

Collective

### Input Parameter

| scomm | - the PetscSubcomm

### Output Parameter

| ccomm | - location to store the child communicator

### See Also

PetscSubcommDestroy(), PetscSubcommSetTypeGeneral(), PetscSubcommSetFromOptions(), PetscSubcommSetType(),
PetscSubcommSetNumber(), PetscSubcommGetParent(), PetscSubcommContiguousParent()

### Level

intermediate

### Location

src/sys/objects/subcomm.c
Index of all Sys routines
Table of Contents for all manual pages
Index of all manual pages