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preconditioners::ssor_precond_shifted_stencil Interface Reference

the shifted stencil of the SSOR preconditioned original stencil More...

Public Member Functions

subroutine ssor_precond_shifted_stencil_sp (field, res_field)
 
subroutine ssor_precond_shifted_stencil_dp (field, res_field)
 

Detailed Description

the shifted stencil of the SSOR preconditioned original stencil

let M be the preconditioner, I the unity matrix and A the original matrix, then this functions is (s*I - M^-1*A) with the scalar shift s. This is used to calculate the smallest absolute eigenvalues of M^-1*A.

Parameters
[in]x2d-field
[out]y2d-field

The documentation for this interface was generated from the following file:

Das diesem Bericht zugrundeliegende Vorhaben wurde mit Mitteln des Bundesministeriums für Bildung, und Forschung unter dem Förderkennzeichen 01IH08004E gefördert. Die Verantwortung für den Inhalt dieser Veröffentlichung liegt beim Autor.