On 4/12/11 1:51 AM, luc.maison...@free.fr wrote: > Hi all, > > I have hit a limitation of the current implementation of ODE integrators with > adaptive step size. For now, the tolerances that are used to adjust the step > size are specified only at construction time and cannot be changed > afterwards. However, these tolerances are highly problem-dependent and in > fact the dimension of the problem (which is related to the dimension of the > vectorial version of the tolerances) is specified only at integration time, > not at construction time. > > So I consider adding at the top-level hierarchy (abstract class > AdaptiveStepsizeIntegrator) a few setters to allow users to change these > tolerances after the integrator has been built. It seems the integrators by > themselves were not documented as immutable (I first thought they were), so > this change is probably harmless. > > I am going to open a Jira issue for this. > > Any thoughts ?
One natural thing to consider is to provide the tolerances at integration time - i.e., to either add the vectors explicitly as arguments to the integrate method or to create an ODEProblem or better-named class that encapsulates the DE, tolerances, initial values and time parameters. Phil > Luc > > --------------------------------------------------------------------- > To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org > For additional commands, e-mail: dev-h...@commons.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: dev-unsubscr...@commons.apache.org For additional commands, e-mail: dev-h...@commons.apache.org
