Informatics and Applications

2024, Volume 18, Issue 4, pp 52-58

ON ONE PROBLEM OF LOAD BALANCING IN TWO-PHASE TANDEM QUEUES

  • M. G. Konovalov
  • R. V. Razumchik

Abstract

Consideration is given to the dispatching system with a single dispatcher without a queue for storing incoming jobs. There is a finite number of infinite capacity queues running in parallel, each having a single server for serving jobs one-by-one in FIFO (first in, first out) manner. It is assumed that the dispatcher has perfect information about the system upon making a routing decision about the arrived job. Once the decision is made, it is irrevocable but is executed by the job with a random delay. The system is modeled by a two-phase tandem queue, with an infinite-server queue at the first phase and a fixed number of single-server queues at the second phase. Themethod to construct simple dispatching policies bymixing is proposed, which can result in robust rules, having better performance than conventional static and dynamic policies

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