KSPPIPEFCGSetNprealloc#

set the number of directions to preallocate with KSPPIPEFCG

Synopsis#

#include "petscksp.h"  
PetscErrorCode KSPPIPEFCGSetNprealloc(KSP ksp, PetscInt nprealloc)

Logically Collective

Input Parameters#

ksp - the Krylov space context
nprealloc - the number of vectors to preallocate

Options Database Key#

-ksp_pipefcg_nprealloc - the number of vectors to preallocate

See Also#

KSP: Linear System Solvers, KSPPIPEFCG, KSPPIPEFCGSetTruncationType(), KSPPIPEFCGGetNprealloc(), KSPPIPEFCGSetMmax(), KSPPIPEFCGGetMmax()

Level#

advanced

Location#

src/ksp/ksp/impls/fcg/pipefcg/pipefcg.c

Index of all KSP routines
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