A Hierarchical Environment for Virtual Supercomputing

This SBIR Phase I project will investigate the use of virtual shared memory technology as a unifying software paradigm for a cluster of shared-memory multiprocessors interconnected on a local area network or on a high-speed communication fabric. The main focus of the research will be on development of compilation and runtime systems that support a notion of data locality within a global distributed virtual shared memory model. Our approach will be based on use of a single virtual shared memory implemented as a distributed collection of shared-memory partitions, and it will incorporate runtime system will dynamically position both processes and shared data so as to obtain the best possible performance.