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Table 6 The comparison of execution time (in seconds) for AMA and ADMM-based convex clustering-like method, with the same sub-problems

From: A parallel ADMM-based convex clustering method

Data set

Workers

AMA method

ADMM-based convex clustering- like method

\(1000 \times 3\)

8

0.94

9.73

\(5000 \times 3\)

25

11.35

14.15

\(10{,}000 \times 3\)

25

61.2

22.01

\(5000 \times 5\)

25

14.5

14.37

\(10{,}000 \times 10\)

25

52.63

30.29

\(200{,}000 \times 3\)

25

NA

564.1