petsc-3.7.7 2017-09-25
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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