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Table 3 The test results of a 2-GB file on different cores

From: A privacy protection-oriented parallel fully homomorphic encryption algorithm in cyber physical systems

No. P Max Map time (seconds) Reduce time (seconds) General time (seconds) Map SP General SP
1 456 65 526 1.0 1.0
4 129 62 198 3.5 2.6
8 61 64 131 7.4 4.0
12 47 64 117 9.7 4.5
16 33 63 105 13.8 5.0
24 25 64 114 18.2 4.6
32 17 63 107 26.8 4.9