KSPFCGSetTruncationType#
specify how many of its stored previous directions FCG uses during orthoganalization
Synopsis#
#include "petscksp.h"
PetscErrorCode KSPFCGSetTruncationType(KSP ksp, KSPFCDTruncationType truncstrat)
Logically Collective on ksp
KSP_FCD_TRUNC_TYPE_STANDARD uses all (up to mmax) stored directions KSP_FCD_TRUNC_TYPE_NOTAY uses the last max(1,mod(i,mmax)) stored directions at iteration i=0,1,..
Input Parameters#
ksp - the Krylov space context
truncstrat - the choice of strategy
Options Database#
-ksp_fcg_truncation_type <standard, notay> - specify how many of its stored previous directions FCG uses during orthoganalization
.seealso: KSPFCDTruncationType
, KSPFCGGetTruncationType
Level#
intermediate
Location#
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages