Accelerator virtualization

Welcome to this special issue on accelerator virtualization in Concurrency and Computation: Practice Experience. Virtualization is a key technique developed for sharing the underlying physical resources of computer, such as processor or memory network. This enables effective use by improving their utilization reduces costs. A well-known example are virtual machines that have become prominent with advent cloud technologies. Virtual an abstraction computer can be made available different users. The underpinning technology ensures data security isolating environment which each user works. Creating executing requires both software hardware support. It thought one earliest forms was time-multiplexing single applications. Although significantly varies from current notion virtualization, multiplexing laid groundwork modern operating systems facilitate concurrent expensive resource among several applications if they used exclusively. network file system another physically nodes cluster while it simultaneously accessed client nodes. In case, storage common shared via mechanisms. Recently, has been adopted accelerators, specialized graphics processing units (GPUs), field programmable gate arrays (FPGAs), tensor (TPUs). Accelerators reduce execution time certain allowing programmers offload compute intensive components accelerators. They also known improve energy efficiency. We hope contents useful you enjoy them much we did.