Optimization of performance and scheduling of HPC applications in cloud using cloudsim and scheduling approach

Cloud computing is emerging as a promising alternative to supercomputers for some High-Performance Computing (HPC) applications. Cloud computing is an essential component of the back bone of the Internet of Things (IoT). Clouds are needed to support huge numbers of interactions with varying quality requirements. Hence, Service quality will be a vital differentiator among cloud providers. In order to differentiate themselves from their competitors, cloud providers should offer best services that meet customers' expectations. A quality model can be used to represent, measure and compare the quality of the providers, such that a mutual understanding can be established among clouds take holders. With cloud as an additional deployment option, HPC users and providers faces the challenges of dealing with highly heterogeneous resources, where the variability spans across a wide range of processor configurations, interconnects, virtualization environments, and pricing models. HPC applications are increasingly being used in academia and laboratories for scientific research and in industries for business and analytics. Cloud computing offers the benefits of virtualization, elasticity of resources and elimination of cluster setup cost and time to HPC applications users. Effort was taken for holistic viewpoint to answer the questions — why and who should choose cloud for HPC, for what applications and how the cloud can be used for HPC? Comprehensive performance and cost evaluation and analysis of running a set of HPC applications on a range of platforms, varying from supercomputers to clouds was carried out. Further, performance of HPC applications is improved in cloud by optimizing HPC applications' characteristics for cloud and cloud virtualization mechanisms for HPC. In this paper, a novel heuristics for online application-aware job scheduling in multi-platform environments is presented. Experimental results and Simulations using CloudSim show that current clouds cannot substitute supercomputers but can effectively complement them.