slepc-3.20.2 2024-03-15
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MFNSetDimensions

Sets the dimension of the subspace to be used by the solver.

Synopsis

#include "slepcmfn.h" 
PetscErrorCode MFNSetDimensions(MFN mfn,PetscInt ncv)
Logically Collective

Input Parameters

mfn  - the matrix function context
ncv  - the maximum dimension of the subspace to be used by the solver

Options Database Keys

-mfn_ncv <ncv>  - Sets the dimension of the subspace

Notes

Use PETSC_DEFAULT for ncv to assign a reasonably good value, which is dependent on the solution method.

See Also

MFNGetDimensions()

Level

intermediate

Location

src/mfn/interface/mfnopts.c

Index of all MFN routines
Table of Contents for all manual pages
Index of all manual pages