slepc-main 2024-12-17
RGCanUseConjugates
Used in contour integral methods to determine whether half of integration points can be avoided (use their conjugates).
Synopsis
#include "slepcrg.h"
PetscErrorCode RGCanUseConjugates(RG rg,PetscBool realmats,PetscBool *useconj)
Not Collective
Input Parameters
| rg | - the region context
|
| realmats | - true if the problem matrices are real
|
Output Parameter
| useconj | - whether it is possible to use conjugates
|
Notes
If some integration points are the conjugates of other points, then the
associated computational cost can be saved. This depends on the problem
matrices being real and also the region being symmetric with respect to
the horizontal axis. The result is false if using real arithmetic or
in the case of a flat region (height equal to zero).
See Also
RGIsAxisymmetric()
Level
developer
Location
src/sys/classes/rg/interface/rgbasic.c
Index of all RG routines
Table of Contents for all manual pages
Index of all manual pages