NDLI: Distrm: distributed resource management for on-chip many-core systems.

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Distrm: distributed resource management for on-chip many-core systems.

Content Provider	CiteSeerX
Abstract	{lohmann, wosch} @ cs.fau.de The trend towards many-core systems comes with various is-sues, among them their highly dynamic and non-predictable workloads. Hence, new paradigms for managing resources of many-core systems are of paramount importance. The problem of resource management, e.g. mapping applications to proces-sor cores, is NP-hard though, requiring heuristics especially when performed online. In this paper, we therefore present a novel resource-management scheme that supports so-called malleable applications. These applications can adopt their lev-el of parallelism to the assigned resources. By design, our (de-centralized) scheme is scalable and it copes with the computa-tional complexity by focusing on local decision-making. Our simulations show that the quality of the mapping decisions of our approach is able to stay near the mapping quality of state-of-the-art (i.e. centralized) online schemes for malleable appli-cations but at a reduced overall communication overhead (only about 12,75 % on a 1024 core system with a total workload of 32 multi-threaded applications). In addition, our approach is scalable as opposed to a centralized scheme and therefore it is practically useful for employment in large many-core systems as our extensive studies and experiments show.
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Subject Keyword	Resource Management On-chip Many-core System Malleable Appli-cations Performed Online Core System Local Decision-making Computa-tional Complexity Multi-threaded Application Many-core System Mapping Decision Mapping Quality Extensive Study Non-predictable Workload New Paradigm Online Scheme Novel Resource-management Scheme Large Many-core System Centralized Scheme Total Workload Paramount Importance Assigned Resource So-called Malleable Application Various Is-sues Proces-sor Core Mapping Application Reduced Overall Communication Overhead
Content Type	Text

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