In addition, two experiments were carried out to analyze the efficiency of the parallel algorithm, one is about the expansibility analysis of the noise
map parallel computing algorithm proposed in this paper, and the other is the analysis of the computing efficiency of Tianhe-2.
The table comparing the Eratosthenes
map parallel values of Alexandria, Syene (Aswan), Babylon and Meroe with parallel values of present settlements proves the differences to be minor and the measurements, conducted by Eratosthenes at that time, are sufficiently precise (see Table 1).