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Table 3 Time and memory usage for hierarchical clustering methods

From: UQlust: combining profile hashing with linear-time ranking for efficient clustering and analysis of big macromolecular data

N_struct 9000 18000 36,000 72,000 144,000
Time (uQlust:Preprocess) 104 241 581 1604 3743
Time (uQlust:Tree) 70 92 168 310 488
Time (ClusCo) 360 3080 24818 209072 ---
Time (MaxClust) 7140 50540 --- --- ---
Memory (uQlust:Tree) 0.3 0.6 0.8 2.6 4.3
Memory (ClusCo) 0.4 1.6 6.5 25 ---
Memory (MaxClust) 1.9 5.7 19.0 --- ---
  1. CPU times (sec) and memory usage (GB) for approximate uQlust:Tree vs. full hierarchical clustering, obtained by using ClusCo [6] or MaxClust [22]. All calculations were performed on a server with 16 Intel (R) Xeon (R) E5-2680-0@2.70GHz CPUs, 132GB, and Linux version 2.6.32-504.1.3.el6.centos.plus.x86_64