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Adapting Operating Systems to Embedded Manycores: Scheduling and Inter-Process Communication
Uppsala University, Disciplinary Domain of Science and Technology, Mathematics and Computer Science, Department of Information Technology.
2014 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

The aim of this thesis is to adapt a bare minimum version of Enea’s OSE, a real-time operating system to Tilepro64, a 32-bit many-core processor. The tasks include mapping memory regions, context handling and interrupt management and building drivers for programmable interrupt controller and timer. Time-based scheduling on the Tilera port of OSE has been achieved. Furthermore, design proposals for improving inter-core  data throughput in LINX for Linux have been suggested. The suggestions include using smart pointers and shared heaps as part of the user space thereby achieving a zero-copy mechanism. With reference to TILEPro64, consideration for leveraging the sharing of smart pointers using User Dynamic Network – a user accessible NoC – has been suggested in the adaptation design. Thus an inter-core  process communication design involving minimal kernel involvement and reduced usage system calls was proposed.

This thesis is part of Portable and Predictable Performance (PAPP) on Heterogeneous Embedded Manycores - an active research initiative undertaken by Advanced Research and Technology for Embedded Intelligent Systems (ARTEMIS). It is also partly associated with the Many-core programming and resource  management for high-performance Embedded Systems (MANY) project and funded by Information Technology for European Advancement (ITEA2). The thesis work is carried out at Enea Software AB and XDIN AB.

Place, publisher, year, edition, pages
IT, 14 042
National Category
Engineering and Technology
URN: urn:nbn:se:uu:diva-228288OAI: diva2:733482
Educational program
Masters Programme in Embedded Systems
Available from: 2014-07-09 Created: 2014-07-09 Last updated: 2014-07-09Bibliographically approved

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