EPSSetOptionsPrefix#

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

Synopsis#

#include "slepceps.h" 
PetscErrorCode EPSSetOptionsPrefix(EPS eps,const char prefix[])

Logically Collective

Input Parameters#

  • eps - the linear eigensolver context

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

      EPSSetOptionsPrefix(eps1,"eig1_")
      EPSSetOptionsPrefix(eps2,"eig2_")

See Also#

EPS: Eigenvalue Problem Solver, EPSAppendOptionsPrefix(), EPSGetOptionsPrefix()

Level#

advanced

Location#

src/eps/interface/epsopts.c

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