PCAppendOptionsPrefix#

Appends to the prefix used for searching for all PC options in the database.

Synopsis#

#include "petscksp.h" 
PetscErrorCode PCAppendOptionsPrefix(PC pc, const char prefix[])

Logically Collective

Input Parameters#

  • pc - the preconditioner context

  • prefix - the prefix string to prepend to all PC option requests

Note#

A hyphen (-) must NOT be given at the beginning of the prefix name. The first character of all runtime options is AUTOMATICALLY the hyphen.

See Also#

PC, PCSetFromOptions, PCSetOptionsPrefix(), PCGetOptionsPrefix()

Level#

advanced

Location#

src/ksp/pc/interface/precon.c


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Index of all PC routines
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Index of all manual pages