MatMFFDSetHHistory#
Sets an array to collect a history of the differencing values (h) computed for the matrix-free product MATMFFD matrix
Synopsis#
#include "petscmat.h"
PetscErrorCode MatMFFDSetHHistory(Mat J, PetscScalar history[], PetscInt nhistory)
Logically Collective
Input Parameters#
J - the
MATMFFDmatrix-free matrixhistory - space to hold the history
nhistory - number of entries in history, if more entries are generated than nhistory, then the later ones are discarded
Note#
Use MatMFFDResetHHistory() to reset the history counter and collect
a new batch of differencing parameters, h.
See Also#
Matrices, Mat, MATMFFD, MatMFFDGetH(), MatCreateSNESMF(),
MatMFFDResetHHistory(), MatMFFDSetFunctionError()
Level#
advanced
Location#
Implementations#
MatMFFDSetHHistory_MFFD in src/mat/impls/mffd/mffd.c
Index of all Mat routines
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Index of all manual pages