petsc-3.14.6 2021-03-30
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KSPPIPEGCRSetNprealloc

 set the number of directions to preallocate with PIPEGCR

Synopsis

#include "petscksp.h"  
PetscErrorCode KSPPIPEGCRSetNprealloc(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_pipegcr_nprealloc <N>

See Also

KSPPIPEGCR, KSPPIPEGCRGetTruncationType(), KSPPIPEGCRGetNprealloc()

Level

advanced

Location

src/ksp/ksp/impls/gcr/pipegcr/pipegcr.c
Index of all KSP routines
Table of Contents for all manual pages
Index of all manual pages