petsc-3.3-p7 2013-05-11

TSARKIMEX

ODE solver using Additive Runge-Kutta IMEX schemes These methods are intended for problems with well-separated time scales, especially when a slow scale is strongly nonlinear such that it is expensive to solve with a fully implicit method. The user should provide the stiff part of the equation using TSSetIFunction() and the non-stiff part with TSSetRHSFunction().

Notes

The default is TSARKIMEX2E, it can be changed with TSARKIMEXSetType() or -ts_arkimex_type

This method currently only works with ODE, for which the stiff part G(t,X,Xdot) has the form Xdot + Ghat(t,X).

See Also

TSCreate(), TS, TSSetType(), TSARKIMEXSetType(), TSARKIMEXGetType(), TSARKIMEXSetFullyImplicit(), TSARKIMEX2D, TTSARKIMEX2E, TSARKIMEX3,
TSARKIMEX4, TSARKIMEX5, TSARKIMEXType, TSARKIMEXRegister()

Level:beginner
Location:
src/ts/impls/arkimex/arkimex.c
Index of all TS routines
Table of Contents for all manual pages
Index of all manual pages

Examples

src/ts/examples/tutorials/ex22.c.html
src/ts/examples/tutorials/ex25.c.html
src/ts/examples/tutorials/ex22f.F.html