NEPSetOptionsPrefix#

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

Synopsis#

#include "slepcnep.h" 
PetscErrorCode NEPSetOptionsPrefix(NEP nep,const char prefix[])

Logically Collective

Input Parameters#

  • nep - the nonlinear eigensolver context

  • prefix - the prefix string to prepend to all NEP 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 NEP contexts, one could call

      NEPSetOptionsPrefix(nep1,"neig1_")
      NEPSetOptionsPrefix(nep2,"neig2_")

See Also#

NEP: Nonlinear Eigenvalue Problems, NEPAppendOptionsPrefix(), NEPGetOptionsPrefix()

Level#

advanced

Location#

src/nep/interface/nepopts.c

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