Conference paper
Message Passing on a Time-predictable Multicore Processor
Real-time systems need time-predictable computing platforms. For a multicore processor to be time-predictable, communication between processor cores needs to be time-predictable as well. This paper presents a time-predictable message-passing library for such a platform. We show how to build up abstraction layers from a simple, time-division multiplexed hardware push channel.
We develop these time-predictable abstractions and implement them in software. To prove the time-predictability of these functions we analyze their worst-case execution time (WCET) with the aiT WCET analysis tool. We combine these WCET numbers with the calculation of the network latency of a message and then provide a statically computed end-to-end latency for this core-to-core message.
Language: | English |
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Publisher: | IEEE Press |
Year: | 2015 |
Pages: | 51-59 |
Proceedings: | 18th IEEE International Symposium on Real-time ComputingIEEE International Symposium on Real-Time Distributed Computing |
Types: | Conference paper |
ORCIDs: | Schoeberl, Martin and Sparsø, Jens |