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Published in:
2005 | OriginalPaper | Chapter
Reducing the Overhead of Intra-Node Communication in Clusters of SMPs
Authors : Sascha Hunold, Thomas Rauber
Published in: Parallel and Distributed Processing and Applications
Publisher: Springer Berlin Heidelberg
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This article presents the
C++
library vShark which reduces the intra-node communication overhead of parallel programs on clusters of SMPs. The library is built on top of message-passing libraries like MPI to provide thread-safe communication but most importantly, to improve the communication between threads within one SMP node. vShark uses a modular but transparent design which makes it independent of specific communication libraries. Thus, different subsystems such as MPI, CORBA, or PVM could also be used for low-level communication. We present an implementation of vShark based on MPI and the POSIX thread library, and show that the efficient intra-node communication of vShark improves the performance of parallel algorithms.