Dynamic task replication method, device and system in edge computing environment
A technology of dynamic tasks and replication methods, applied in computing, computing models, program control design, etc., to achieve the effect of reducing queuing and computing delays
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[0050] The technical solutions of the present invention will be further described below in conjunction with the accompanying drawings and embodiments.
[0051] The biggest feature of performing dynamic task replication in an edge computing environment is randomness. Due to the constant fluctuations in network bandwidth and edge cluster computing performance when executing tasks, it is impossible to predict the completion latency of tasks replicated to different edges before the replication decision. Also, the total delay after the decision is still a random amount. The actual completion delay of each task is not known until the task actually completes. Therefore, the task completion delay is an unknown distribution. Specifically, in the task replication delay model, bandwidth and edge computing capabilities satisfy unknown distributions, fluctuate with time, and cannot be predicted in advance. This uncertainty fits the multi-armed bandit model. Therefore, the multi-armed b...
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