petsc-3.11.4 2019-09-28
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KSPFCGSetNprealloc
set the number of directions to preallocate with FCG
Synopsis
#include "petscksp.h"
PetscErrorCode
KSPFCGSetNprealloc
(
KSP
ksp,
PetscInt
nprealloc)
Logically Collective on
KSP
Input Parameters
ksp
- the Krylov space context
nprealloc
- the number of vectors to preallocate
Options Database
-ksp_fcg_nprealloc <N>
-number of directions to preallocate
See Also
KSPFCG
,
KSPFCGGetTruncationType
(),
KSPFCGGetNprealloc
()
Level
advanced
Location
src/ksp/ksp/impls/fcg/fcg.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages