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arXiv · 1907.00194

Open-MPI over MOSIX: paralleled computing in a clustered world

Adam Lev-Libfeld·Alex Margolin·Amnon Barak
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Abstract

Recent increased interest in Cloud computing emphasizes the need to find an adequate solution to the load-balancing problem in parallel computing -- efficiently running several jobs concurrently on a cluster of shared computers (nodes). One approach to solve this problem is by preemptive process migration -- the transfer of running processes between nodes. A possible drawback of this approach is the increased overhead between heavily communicating processes. This project presents a solution to this last problem by incorporating the process migration capability of MOSIX into Open-MPI and by reducing the resulting communication overhead. Specifically, we developed a module for direct communication (DiCOM) between migrated Open-MPI processes, to overcome the increased communication latency of TCP/IP between such processes. The outcome is reduced run-time by improved resource allocation.

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Adam Lev-Libfeld, Alex Margolin, Amnon Barak. 2019-06-29. Open-MPI over MOSIX: paralleled computing in a clustered world. https://arxiv.org/abs/1907.00194

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