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Erschienen in:
2011 | OriginalPaper | Buchkapitel
Local Robustness: A Process Migration Criterion in HPC Clusters
verfasst von : Sina Mahmoodi Khorandi, Seyedeh Leili Mirtaheri, Ehsan Mousavi Khaneghah, Mohsen Sharifi, Siavash Ghiasvand
Erschienen in: Innovative Computing Technology
Verlag: Springer Berlin Heidelberg
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Cluster computing systems require managing their resources and running processes dynamically in an efficient manner. Preemptive process migration is such a mechanism that tries to improve the overall performance of a cluster system running independent processes. In this paper, we show that blind migration of processes at runtime by such a mechanism does not lead to better performance. Instead, the preemptive process migration mechanism requires a criterion to determine if the migration of a process would enhance the cluster performance or not. We introduce a criterion called
local robustness
to guide the mechanism in this respect. The results of our experiments on a real implementation of a mechanism using this criterion have shown improvements to the overall performance of a Mosix cluster in terms of system response time compared to when processes were migrated blindly.