15 MPIMMU — Providing a Single Address Space over a Cluster
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Distributed shared memory combines the shared memory programming model with physically distributed memory machines. In this paper we present our approach in implementing a software distributed shared memory system that runs on a cluster and provides access to a single address space. It's architecture is based on a modular design where every module performs a specific task: communication over the network, caching or local memory operations. Pthreads and MPI implementation details are provided along with performance results for local and remote memory operations with and without caching.