Figure 3.

Access to MPI buffers for communication of continuous-data events. Neuron i on MPI rank r₀ and neuron j on MPI rank r₁ (blue filled circles) are coupled through a gap junction (blue line), which requires them to exchange continuous-data events in every communication step. To this end, each neuron always writes to the same send-buffer position s_ij and s_ji, respectively (black solid arrows) and reads from the corresponding receive-buffer positions t_ji and t_ij, respectively (black dotted arrows).