PEPSetOptionsPrefix#

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

Synopsis#

#include "slepcpep.h" 
PetscErrorCode PEPSetOptionsPrefix(PEP pep,const char *prefix)

Logically Collective

Input Parameters#

  • pep - the polynomial eigensolver context

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

Notes#

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

For example, to distinguish between the runtime options for two different PEP contexts, one could call

      PEPSetOptionsPrefix(pep1,"qeig1_")
      PEPSetOptionsPrefix(pep2,"qeig2_")

See Also#

PEPAppendOptionsPrefix(), PEPGetOptionsPrefix()

Level#

advanced

Location#

src/pep/interface/pepopts.c

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