PETSc version 3.16.6
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TSDISCGRAD

ODE solver using the discrete gradients version of the implicit midpoint method

Notes

This is the implicit midpoint rule, with an optional term that guarantees the discrete gradient property. This timestepper applies to systems of the form
u_t = S(u) grad F(u)
where S(u) is a linear operator, and F is a functional of u.

Reference

Gonzalez, Oscar. "Time integration and discrete Hamiltonian systems." Journal of Nonlinear Science 6.5 (1996): 449-467.

See Also

TSCreate(), TSSetType(), TS, TSTHETA, TSDiscGradSetFormulation()

Level

beginner

Location

src/ts/impls/implicit/discgrad/tsdiscgrad.c
Index of all TS routines
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Index of all manual pages