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Model-Based Reconfiguration Planning for a Distributed On-board Computer

Kovalov, Andrii and Franz, Tobias and Watolla, Hannes and Vishav, Vishav and Gerndt, Andreas and Lüdtke, Daniel (2020) Model-Based Reconfiguration Planning for a Distributed On-board Computer. In: 12th System Analysis and Modelling Conference. Association for Computing Machinery. SAM 2020, 19.-20. Okt. 2020, Montreal, Canada (Online). ISBN 978-1-4503-8140-6.

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Official URL: https://dl.acm.org/doi/10.1145/3419804.3420266


The ScOSA project (Scalable On-board Computing for Space Avionics) of the German Aerospace Center aims at combining radiation hardened space hardware together with unreliable, but high performance COTS (commercial off-the-shelf) components as the processing nodes in a heterogeneous on-board network in order to provide future space missions with the necessary processing capabilities. However, such a system needs to cope with node failures. Our approach is to use a static reconfiguration graph that controls how software tasks are mapped to the processing nodes, and how this mapping should change in response to possible node failures. In this paper we present a model-based approach and a tool for automatic generation of reconfiguration graphs. Based on the software and hardware models, we traverse the graph of all possible failure situations. For every node of this graph we solve a combinatorial optimization problem of mapping tasks to processing nodes either with an SMT solver or using a genetic algorithm. The resulting reconfiguration graph can then be translated into the configuration files that are deployed on the target system, eliminating the need for tedious and error-prone manual configuration design.

Item URL in elib:https://elib.dlr.de/137257/
Document Type:Conference or Workshop Item (Speech)
Title:Model-Based Reconfiguration Planning for a Distributed On-board Computer
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Kovalov, AndriiUNSPECIFIEDhttps://orcid.org/0000-0002-8923-9936
Franz, TobiasUNSPECIFIEDhttps://orcid.org/0000-0003-1412-9625
Vishav, VishavUNSPECIFIEDhttps://orcid.org/0000-0002-5658-3984
Gerndt, AndreasUNSPECIFIEDhttps://orcid.org/0000-0002-0409-8573
Lüdtke, DanielUNSPECIFIEDhttps://orcid.org/0000-0002-6758-1562
Date:October 2020
Journal or Publication Title:12th System Analysis and Modelling Conference
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In ISI Web of Science:No
Publisher:Association for Computing Machinery
Keywords:Modeling, MBSE, Task-node mapping
Event Title:SAM 2020
Event Location:Montreal, Canada (Online)
Event Type:international Conference
Event Dates:19.-20. Okt. 2020
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Space System Technology
DLR - Research area:Raumfahrt
DLR - Program:R SY - Space System Technology
DLR - Research theme (Project):R - Scosa Onboard Computing (old), R - Virtueller Satellit (old)
Location: Braunschweig , Oberpfaffenhofen
Institutes and Institutions:Institute for Software Technology
Institute for Software Technology > Software for Space Systems and Interactive Visualisation
Deposited By: Kovalov, Andrii
Deposited On:27 Nov 2020 14:31
Last Modified:27 Nov 2020 14:31

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