Efficient SIMD solution of multiple systems of stiff IVPs

► We model the surface reactions that govern CO2 reforming on a palladium catalyst. ► This application exploits simultaneous solution of many independent IVPs. ► We parallelize the linearly implicit IVP solver RODAS to take advantage of SIMD. ► We show a speedup of 1.87 using 64-bit floating point arithmetic and 128-bit SIMD.