petsc-3.14.5 2021-03-03
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# SNESGetOptionsPrefix

Sets the prefix used for searching for all SNES options in the database.

### Synopsis

    #include "petscsnes.h"
    PetscErrorCode  SNESGetOptionsPrefix(SNES snes,const char *prefix[])

Not Collective

### Input Parameter

| snes | - the SNES context

### Output Parameter

| prefix | - pointer to the prefix string used

### Notes

On the fortran side, the user should pass in a string 'prefix' of sufficient length to hold the prefix.

### See Also

SNESAppendOptionsPrefix()

### Level

advanced

### Location

src/snes/interface/snes.c
Index of all SNES routines
Table of Contents for all manual pages
Index of all manual pages