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Auflistung nach Autor:in "Dieudonne, Laurent"

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  • Zeitschriftenartikel
    Coherent multicore methodology and tooling
    (it - Information Technology: Vol. 59, No. 5, 2017) Reinkemeier, Philipp; Ittershagen, Philipp; Dieudonne, Laurent; Diebold, Philipp
    In the mobility domains functions are often realized by software running on Electronic Control Units (ECU)s, which are interconnected in a network of ECU. Nowadays there is a trend to move to ECUs with multicore processors which imposes a major challenge: An increasing degree of parallelism. This additional parallelism when migrating existing software that has been developed for singlecore systems, to a multicore system, has to be used in an efficient way. Furthermore, an increase in parallelism can cause concurrent executions of software functions, which are not possible when being executed on a singlecore ECU. This makes reasoning about the software behaviour much more difficult and also poses problems during certification activities, when sufficient independence between functions needs to be ensured. Therefore tool support is absolutely necessary to address the challenges. In this article we describe methods and tools that have been developed and/or extended during the ARAMiS project to address particular challenges arising during the development of multicore systems. In general these challenges result from the increase in parallelism available in multicore architectures.
  • Zeitschriftenartikel
    Multicore system architecture aspects and deployment
    (it - Information Technology: Vol. 59, No. 5, 2017) Kuntz, Stefan; Dieudonne, Laurent
    The crucial foundation in developing embedded safety-critical real-time systems based on multicore based platforms is the capability to combined different methodologies and approaches with a sound formal description of the system architecture. With such a system of methodologies and system architectures it is possible to develop a system satisfying all requirements and even being able to optimize the overall system towards domain specific goals. This article discusses activities in ARAMiS, which have been performed on system architecture level, including improvements of modeling existing architectures and design techniques concerning reliability, independence, segregation and determinism for deployment strategies.