PEPSetTrackAll#

Specifies if the solver must compute the residual of all approximate eigenpairs or not.

Synopsis#

#include "slepcpep.h" 
PetscErrorCode PEPSetTrackAll(PEP pep,PetscBool trackall)

Logically Collective

Input Parameters#

  • pep - the polynomial eigensolver context

  • trackall - whether compute all residuals or not

Notes#

If the user sets trackall=PETSC_TRUE then the solver explicitly computes the residual for each eigenpair approximation. Computing the residual is usually an expensive operation and solvers commonly compute the associated residual to the first unconverged eigenpair.

The option ‘-pep_monitor_all’ automatically activates this option.

See Also#

PEP: Polynomial Eigenvalue Problems, PEPGetTrackAll()

Level#

developer

Location#

src/pep/interface/pepopts.c

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