Temporal Task Scheduling of Multiple Delay-Constrained Applications in Green Hybrid Cloud

Haitao Yuan, Jing Bi, Meng Chu Zhou

Research output: Contribution to journalArticlepeer-review

34 Scopus citations


A growing number of global companies select Green Data Centers (GDCs) to manage their delay-constrained applications. The fast growth of users' tasks dramatically increases the energy consumed by GDCs owned by a company, e.g., Google and Amazon. The random nature of tasks brings a big challenge of scheduling tasks of each application with limited infrastructure resources of GDCs. Therefore, hybrid cloud is widely employed to smartly outsource some tasks to public clouds. However, the temporal variation in many factors including revenue, price of power grid, solar irradiance, wind speed, price of public clouds makes it challenging to schedule all tasks of each application in a cost-effective way while strictly meeting their expected delay constraints. This work proposes a temporal task scheduling algorithm investigating the temporal variation in green hybrid cloud to schedule all tasks within their delay constraints. Besides, it explicitly presents a mathematical equation of service rates and task refusal. The maximization problem is formulated and tackled by the proposed hybrid optimization algorithm called Genetic Simulated-annealing-based particle swarm optimization. Trace-driven experiments demonstrate that larger profit are achieved than several existing scheduling algorithms.

Original languageEnglish (US)
Pages (from-to)1558-1570
Number of pages13
JournalIEEE Transactions on Services Computing
Issue number5
StatePublished - 2021

All Science Journal Classification (ASJC) codes

  • Hardware and Architecture
  • Computer Science Applications
  • Computer Networks and Communications
  • Information Systems and Management


  • Green data center
  • delay-constrained applications
  • hybrid cloud
  • hybrid meta-heuristic optimization
  • task scheduling


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