PETSc version 3.16.5
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# PetscSubcommSetOptionsPrefix

Sets the prefix used for searching for all PetscSubcomm items in the options database.

### Synopsis

    #include "petscsys.h"
    PetscErrorCode PetscSubcommSetOptionsPrefix(PetscSubcomm psubcomm,const char pre[])

Logically collective on PetscSubcomm.

### Input Parameters

| psubcomm | - PetscSubcomm context
| prefix | - the prefix to prepend all PetscSubcomm item names with.

### Level

Intermediate

### Location

src/sys/objects/subcomm.c
Index of all Sys routines
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