fastrk 0.0.1

FastRK, a generator of fast jit-compiled code for ODE propagation by ERK methods with adaptive step and events

FastRK

• developed as fast alternative for subset of scipy.integrate.ode methods (i.e. DOP853);
• is a python code generator for Ordinary Differential Equations (ODE) propagation;
• uses explicit embedded Runge-Kutta (ERK) methods adaptive step technique;
• calculates events using event functions (like scipy.integrate.solve_ivp);
• is jit-compiled by Numba;
  • compiled code cached on SSD/HDD to prevent unnecessary recompilation;
• OS-independent (to the same extent as Numba);
• contains Butcher Tables for several ERK methods:
  • Dormand and Prince 6(5)8M;
  • Dormand and Prince 8(7)13M;
    • ~2-3x faster than DOP853 from scipy.integrate.ode
  • Verner's 8(9)16;
• user-defined Butcher Tables also supported;
• generated code is open and user-modifiable;

Butcher Tables was adapted from TrackerComponentLibrary.

Installation

pip install fastrk

Examples

TBD

Core Developer

Stanislav Bober, MIEM NRU HSE, IKI RAS