#include "petscksp.h" PetscErrorCode KSPFCGSetNprealloc(KSP ksp,PetscInt nprealloc)Logically Collective on ksp
| ksp | - the Krylov space context | |
| nprealloc | - the number of vectors to preallocate |
| -ksp_fcg_nprealloc <N> | - number of directions to preallocate |