MatMFFD

A data structured used to manage the computation of the h differencing parameter for matrix-free Jacobian vector products

Synopsis

typedef struct _p_MatMFFD *MatMFFD;

Notes

MATMFFD is a specific MatType which uses the MatMFFD data structure

MatMFFD*() methods actually take the Mat as their first argument. Not a MatMFFD data structure

This functionality is often obtained using MatCreateSNESMF() or with SNES solvers using -snes_mf or -snes_mf_operator

See Also

Matrices, MatMFFDType, MATMFFD, MatCreateMFFD(), MatMFFDSetFuction(), MatMFFDSetType(), MatMFFDRegister(), MatCreateSNESMF(), SNES, -snes_mf, -snes_mf_operator

Level

developer

Location

include/petscmat.h

Implementations

_p_MatMFFD in src/mat/impls/mffd/mffdimpl.h
MatMFFD_DS in src/mat/impls/mffd/mffddef.c
MatMFFD_WP in src/mat/impls/mffd/wp.c

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