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. 2020 Feb 13;18(3):407–428. doi: 10.1007/s12021-019-09451-w

Table 1.

Average number of flop and data traffic per neuron to advance its state by 1 second of simulated time

Brunel Simplified Reconstructed
Flop 2.3 × 105 1.7 × 107 8.5 × 109
Data Volume [MB] 1.0 1.3 × 102 3.1 × 104
Arith. Int. [Flop/B] 2.3 × 10− 1 1.3 × 10− 1 2.7 × 10− 1
Mem. Capacity [KB] 2.7 × 102 10 2.9 × 103
Perf. [sim s / wall s] 3.4 × 103 1.7 × 102 3.4 × 10− 1

Arithmetic Intensity is defined as the ratio of flop per data volume. We also report the predicted serial simulation Performance, measured in simulated seconds per elapsed wallclock second for a single neuron receiving synaptic events at a rate of 1Hz. The requirements in this Table are computed considering only the data structures strictly relevant to computation, thus neglecting overhead from implementation details such as MPI buffers, data structure representation, memory padding, etc