Poster: FOX: a fault-oblivious extreme scale execution environment

Exascale computing systems will provide a thousand-fold increase in parallelism and a proportional increase in failure rate relative to today's machines. Systems software for exascale machines must provide the infrastructure to support existing applications while simultaneously enabling efficient execution of new programming models that naturally express dynamic, adaptive, irregular computation; coupled simulations; and massive data analysis in a highly unreliable hardware environment with billions of threads of execution. Further, these systems must be designed with failure in mind. FOX is a new system for the exascale that will support distributed data objects as first class objects in the operating system itself. This memory-based data store will be named and accessed as part of the file system name space of the application. We can build many types of objects with this data store, including data-driven work queues, which will in turn support applications with inherent resilience.