Increase Ignite instances can't increase the speed of compute

[胡永亮/Bob]

Hi, everyone:

    I am using Ignite for computing and cache.

    I use the same input data and the same compute logic.
    When my ignite cluster's node is 2 in 2 machines, the total cost time is 
38s.

    But, when I increase the Ignite cluster nodes to 3 in 3 machines, the cost 
time is 32s/51s/41s
    4 instances in 4 machines, the cost time is 32s/40s.

     The compute speed can't change faster, what may the reason be?

    Thanks.

Bob


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