MatMFFDSetPeriod

Sets how often h is recomputed for a MATMFFD matrix, by default it is every time

Synopsis

#include "petscmat.h"   
PetscErrorCode MatMFFDSetPeriod(Mat mat, PetscInt period)

Logically Collective

Input Parameters

• mat - the MATMFFD matrix-free matrix

• period - 1 for every time, 2 for every second etc

Options Database Key

• -mat_mffd_period - Sets how often h is recomputed

See Also

Matrices, Mat, MATMFFD, MatCreateSNESMF(), MatMFFDGetH(), MatMFFDSetHHistory(), MatMFFDResetHHistory()

Level

advanced

Location

src/mat/impls/mffd/mffd.c

Implementations

MatMFFDSetPeriod_MFFD() in src/mat/impls/mffd/mffd.c

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