SSAs for stiff systems

[joegilkes]

Hi all,

I was just wondering if there were any plans to implement SSAs for dealing with stiff systems, like implicit tau-leaping [1, 2] or the slow-scale SSA [3]? I saw that @ChrisRackauckas mentioned implicit tau-leaping on a roadmap a few years back, but couldn't find anything more recent, and I haven't seen anything about the ssSSA on here yet.

Thanks!

1. Rathinam M, Petzold LR, Cao Y, Gillespie DT. 2003. Stiffness in stochastic chemically reacting systems: the implicit tau-leaping method. J. Chem. Phys. 119:12784–94
2. Cao Y, Petzold LR. 2005. Trapezoidal tau-leaping formula for the stochastic simulation of chemically reacting systems. Proc. Found. Syst. Biol. Eng. (FOSBE 2005), pp. 149–52.
3. Cao Y, Gillespie DT, Petzold LR. 2005. The slow-scale stochastic simulation algorithm. J. Chem. Phys. 122:014116

[isaacsas]

Right now there is nothing beyond what is in StochasticDiffEq. It’s on our TODO, but there isn’t anyone working on it currently. It would be a great summer project for a student, but we haven’t gotten any interested in it for GSOC yet.

[joegilkes]

Fair enough, thanks for the info.

[isaacsas]

Let’s keep this open since it is good to have a list of methods to add recorded somewhere.