void afsi_run(sim_offload_data *sim, Reaction reaction, int n, afsi_data *react1, afsi_data *react2, real mult, dist_5D_offload_data *prod1_offload_data, dist_5D_offload_data *prod2_offload_data, real *prod1_offload_array, real *prod2_offload_array)
Calculate fusion source from two arbitrary ion distributions.