Designing High Performance and Scalable MPI Intra-node Communication Support for Clusters

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Provided by: The Ohio Society of CPAs
Topic: Storage
Format: PDF
As new processor and memory architectures advance, clusters start to be built from larger SMP systems, which makes MPI intra-node communication a critical issue in high performance computing. This paper presents a new design for MPI intra-node communication that aims to achieve both high performance and good scalability in a cluster environment. The design distinguishes small and large messages and handles them differently to minimize the data transfer overhead for small messages and the memory space consumed by large messages.
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