Implementing AUTOSAR scheduling and resource management on an embedded SMT processor

Implementing AUTOSAR scheduling and resource management on an embedded SMT processor
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在嵌入式 SMT 处理器上实现 AUTOSAR 调度和资源管理

DOI:
10.1145/1543820.1543828
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发表时间:
2009
期刊:
影响因子:
--
通讯作者:
Theo Ungerer
Theo Ungerer
中科院分区:
--
文献类型:
--
作者:
Florian Kluge;Chenglong Yu;Jörg Mische;Sascha Uhrig;Theo Ungerer

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AUTOSAR规范为汽车领域的软件开发提供了通用标准。它的功能定义基于单线程处理器的概念。嵌入式处理器的最新趋势为使用多线程和多核等并行执行技术的更强大的处理器提供了新的可能性。我们讨论了AUTOSAR操作系统接口在现代同步多线程(SMT)处理器上的实现。当在多线程处理器上并发执行AUTOSAR任务时,资源管理中会出现几个问题。特别是应该通过优先级上限协议避免的死锁可能会再次发生。我们通过任务过滤方法扩展AUTOSAR操作系统以避免多线程处理器中的死锁,从而解决了这一问题。通过使用无锁数据结构,可以解决因并行执行任务而产生的其他同步问题。最后,我们提出了对AUTOSAR规范的一些扩展,使其可以用于SMT处理器的软件开发。我们在这种SMT处理器上开发了一些额外的要求,以支持使用任务筛选方法。我们的工作也为汽车领域即将到来的多核处理器的软件开发提供了前景。
The AUTOSAR specification provides a common standard for software development in the automotive domain. Its functional definition is based on the concept of single-threaded processors. Recent trends in embedded processors provide new possibilities for more powerful processors using parallel execution techniques like multithreading and multi-cores. We discuss the implementation of the AUTOSAR operating system interface on a modern simultaneous multithreaded (SMT) processor. Several problems in resource management arise when AUTOSAR tasks are executed concurrently on a multithreaded processor. Especially deadlocks, which should be averted through the priority ceiling protocol, can reoccur. We solve this problems by extending AUTOSAR OS by theTask Filtering Methodto avoid deadlocks in multithreaded processors. Other synchronisation problems arising through the parallel execution of tasks are solved through the use of lock-free data structures. In the end, we propose some extensions to the AUTOSAR specification so it can be used in software development for SMT processors. We develop some additional requirements on such SMT processors to enable the use of theTask FilteringMethod. Our work gives also perspectives for software development on upcoming multi-core processors in the automotive domain.
DOI: --
发表时间: 2005
期刊: Proceedings of the Fifth IEEE International Symposium on Signal Processing and Information Technology, 2005.
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作者:
S. Uhrig;S. Maier;T. Ungerer
通讯作者: T. Ungerer
在多线程嵌入式 TriCore 2 处理器中使用辅助线程来支持操作系统
DOI: --
发表时间: 2007
期刊:
影响因子: --
作者:
Florian Kluge;Jörg Mische;S. Uhrig;T. Ungerer
通讯作者: T. Ungerer
SMT 处理器的数据共享协议
DOI: --
发表时间: 2006
期刊: ACM Symposium on Applied Computing
影响因子: --
作者:
Shi
通讯作者: Shi