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arXiv · 1502.02852

Transaction Level Analysis for a Clustered and Hardware-Enhanced Task Manager on Homogeneous Many-Core Systems

Daniel Gregorek·Robert Schmidt·Alberto Garcia-Ortiz
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Abstract

The increasing parallelism of many-core systems demands for efficient strategies for the run-time system management. Due to the large number of cores the management overhead has a rising impact to the overall system performance. This work analyzes a clustered infrastructure of dedicated hardware nodes to manage a homogeneous many-core system. The hardware nodes implement a message passing protocol and perform the task mapping and synchronization at run-time. To make meaningful mapping decisions, the global management nodes employ a workload status communication mechanism. This paper discusses the design-space of the dedicated infrastructure by means of task mapping use-cases and a parallel benchmark including application-interference. We evaluate the architecture in terms of application speedup and analyze the mechanism for the status communication. A comparison versus centralized and fully-distributed configurations demonstrates the reduction of the computation and communication management overhead for our approach.

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Daniel Gregorek, Robert Schmidt, Alberto Garcia-Ortiz. 2015-02-10. Transaction Level Analysis for a Clustered and Hardware-Enhanced Task Manager on Homogeneous Many-Core Systems. https://arxiv.org/abs/1502.02852

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