Challenges in Dynamic Resource Allocation and Task Scheduling in Heterogeneous Clouds

Abstract

Resource Allocation and Task scheduling are the most important key words in today’s dynamic cloud based applications. Task scheduling involves assigning tasks to available processors with the aim of producing minimum execution time, whereas resource allocation involves deciding on an allocation policy to allocate resources to various tasks so as to have maximum resource utilization. Algorithms used for scheduling resources for virtual machines are designed for both homogeneous and heterogeneous environments. Majority of the algorithms focus on processing ability often neglecting other features such as network bandwidth and actual resource requirements. One of the major pitfalls in cloud computing is related to optimizing the resources being allocated. Because of the uniqueness of the model, resource allocation is performed with the objective of minimizing the costs associated with it. The other challenges of resource allocation are meeting customer demands and application requirements. In this paper we will focus on the challenges faced in task scheduling and resource allocation in dynamic heterogeneous clouds.