PEPSetConvergenceTest#

Specifies how to compute the error estimate used in the convergence test.

Synopsis#

#include "slepcpep.h" 
PetscErrorCode PEPSetConvergenceTest(PEP pep,PEPConv conv)

Logically Collective

Input Parameters#

  • pep - the polynomial eigensolver context

  • conv - the type of convergence test

Options Database Keys#

  • -pep_conv_abs - Sets the absolute convergence test

  • -pep_conv_rel - Sets the convergence test relative to the eigenvalue

  • -pep_conv_norm - Sets the convergence test relative to the matrix norms

  • -pep_conv_user - Selects the user-defined convergence test

Note#

The parameter ‘conv’ can have one of these values

  • PEP_CONV_ABS - absolute error ||r||

  • PEP_CONV_REL - error relative to the eigenvalue l, ||r||/|l|

  • PEP_CONV_NORM - error relative matrix norms, ||r||/sum_i(l^i*||A_i||)

  • PEP_CONV_USER - function set by PEPSetConvergenceTestFunction()

See Also#

PEP: Polynomial Eigenvalue Problems, PEPGetConvergenceTest(), PEPSetConvergenceTestFunction(), PEPSetStoppingTest(), PEPConv

Level#

intermediate

Location#

src/pep/interface/pepopts.c

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