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Table 1 Results of the first example regarding to efficiency

From: A 99 line code for discretized Michell truss optimization written in Mathematica

Mesh density No. nodes No. bars RAM for H in [MB] CPU time [s] Volume \(\overline{V}_\sigma\) Relative error [%]
Sparse Full
60 × 20:1 × 1 1,281 4,880 0.34 188 0.3 15.0000 10.32
60 × 20:2 × 2 1,281 9,520 0.76 366 1.0 13.8671 1.98
60 × 20:3 × 3 1,281 18,328 1.56 705 1.8 13.6953 0.72
60 × 20:4 × 4 1,281 26,672 2.32 1,026 3.2 13.6580 0.45
60 × 20:5 × 5 1,281 42,448 3.75 1,632 5.4 13.6439 0.34
60 × 20:10 × 10 1,281 113,912 10.23 4,380 10.7 13.6350 0.28
60 × 20:20 × 20 1,281 280,136 25.29 10,772 43.3 13.6343 0.27
120 × 40:10 × 10 4,961 532,872 48.17 80,009 147.0 13.6126 0.11
120 × 40:20 × 20 4,961 1,745,496 158.68 262,080 768.0 13.6120 0.11