petsc-3.14.5 2021-03-03
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# PetscCommDestroy

Frees communicator. Use in conjunction with PetscCommDuplicate().

### Synopsis

    #include "petscsys.h"
    PetscErrorCode  PetscCommDestroy(MPI_Comm *comm)

Collective

### Input Parameter

| comm | - the communicator to free

### See Also

PetscCommDuplicate()

### Level

developer

### Location

src/sys/objects/tagm.c

### Examples

src/ksp/ksp/tutorials/ex73.c.html
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