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首页> 外文会议>From Model-Driven Design to Resource Management for Distributed Embedded Systems; International Federation for Information Processing(IFIP); 225; Sprin >DISTRIBUTED TIMED MULTITASKING - A MODEL OF COMPUTATION FOR HARD REALTIME DISTRIBUTED SYSTEMS
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DISTRIBUTED TIMED MULTITASKING - A MODEL OF COMPUTATION FOR HARD REALTIME DISTRIBUTED SYSTEMS

机译：分布式定时多任务-一种硬实时分布式系统的计算模型。

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The paper presents a new type of system architecture for distributed embedded systems, whereby a system is composed from embedded actors that communicate transparently by exchanging labeled messages (signals), independent of their allocation onto network nodes. Signals are exchanged at precisely specified time instants in accordance with the concept of Timed Multitasking, whereby actors can be viewed as real-time tasks with event-triggered input and output drivers activated by timing or external events. The combination of actors, signal-based communication and timed multitasking has resulted in a new operational model ― Distributed Timed Multitasking (DTM). The latter has been used to derive a task execution model and requirements specifications for a real-time kernel, which have been used to develop the timed-multitasking version of the HARTEX kernel. In this context, the paper presents a discussion of specific implementation issues related to the execution of periodic and sporadic tasks under DTM.
机译：本文提出了一种用于分布式嵌入式系统的新型系统架构，该系统由嵌入式参与者组成，该参与者通过交换标记的消息（信号）进行透明通信，而与标记在消息上的分配无关。根据定时多任务处理的概念，可以在精确指定的时刻交换信号，从而可以将参与者视为实时任务，并通过定时或外部事件激活事件触发的输入和输出驱动器。参与者，基于信号的通信和定时多任务的结合，产生了一个新的操作模型-分布式定时多任务（DTM）。后者已用于导出实时内核的任务执行模型和需求规范，这些模型已用于开发HARTEX内核的定时多任务版本。在这种情况下，本文提出了与在DTM下执行周期性任务和零星任务有关的特定实施问题的讨论。

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