KSPFCGSetNprealloc#
set the number of directions to preallocate with KSPFCG
Synopsis#
#include "petscksp.h"
PetscErrorCode KSPFCGSetNprealloc(KSP ksp, PetscInt nprealloc)
Logically Collective
Input Parameters#
ksp - the Krylov space context
nprealloc - the number of vectors to preallocate
Options Database Key#
-ksp_fcg_nprealloc
- number of directions to preallocate
See Also#
KSP: Linear System Solvers, KSPFCG, KSPFCGGetTruncationType(), KSPFCGGetNprealloc(), KSPFCGSetMmax(), KSPFCGGetMmax()
Level#
advanced
Location#
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages