improving the palbimm scheduling algorithm for fault tolerance in cloud computing

cloud computing is the latest technology that involves distributed computation over the internet. it meets the needs of users through sharing resources and using virtual technology. the workflow user applications refer to a set of tasks to be processed within the cloud environment. scheduling algorithms have a lot to do with the efficiency of cloud computing environments through selection of suitable resources and assignment of workflows to them. given the factors affecting their efficiency, these algorithms try to use resources optimally and increase the efficiency of this environment. the palbimm algorithm provides a scheduling method that meets the majority of the requirements of this environment and its users. in this article, we improved the efficiency of the algorithm by adding fault tolerance capability to it. since this capability is used in parallel with task scheduling, it has no negative impact on the makespan. this is supported by simulation results in cloudsim environment.