petsc-3.7.1 2016-05-15
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KSPPIPEGCRSetMmax

set the maximum number of previous directions PIPEGCR will store for orthogonalization

Synopsis

#include "petscksp.h"  
PetscErrorCode KSPPIPEGCRSetMmax(KSP ksp,PetscInt mmax)
Note: mmax + 1 directions are stored (mmax previous ones along with a current one) Many brand whether all are used in each iteration also depends on the truncation strategy Many br(see KSPPIPEGCRSetTruncationType) Many br

Logically Collective on KSP Many br

Input Parameters

ksp - the Krylov space context Many br
mmax - the maximum number of previous directions to orthogonalize againt Many br

Many br

Options Database

-ksp_pipegcr_mmax <N> - Many br

See Also

KSPPIPEGCR, KSPPIPEGCRSetTruncationType(), KSPPIPEGCRSetNprealloc()

Level:intermediate
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