Runtime Techniques for Automatic Process Virtualization
Evan Ramos, Sam White, Aditya Bhosale, Laxmikant V. Kalé · 2022
Asynchronous many-task runtimes look promising for the next generation of high performance computing systems. But these runtimes are usually based on new programming models, requiring extensive programmer effort to port existing applications to them. An alternative approach is to reimagine the execution model of widely used programming APIs, such as MPI, in order to execute them more asynchronously. Virtualization is a powerful technique that can be used to execute a bulk synchronous parallel program in an asynchronous manner. Moreover, if the virtualized entities can be migrated between address spaces, the runtime can optimize execution with dynamic load balancing, fault tolerance, and other adaptive techniques.