Brief Industry Paper: Digital Twin for Dependable Multi-Core Real-Time Systems — Requirements and Open Challenges

Abstract

Development of dependable multi-/many-core systems requires assurance that the system is operable in a range of conditions, subjected to both functional and non-functional requirements. To achieve this, tools need to be implemented that can enable exploration of design options and be able to detect deficiencies earlier to avoid costly system re-design. In this work we discuss the challenges of design of multi-core realtime systems with timing assurance and discuss what are the requirements for modelling, testing and analysis tools. Digital Twin-based predictive modelling and fast design space evaluation are studied that work toward addressing these challenges.

Using Digital Twins in the Development of Complex Dependable Real-Time Embedded Systems

“…A Digital Twin is defined as a digital replica of a target physical system (i.e., the system of interest) [5]. It can run independently and/or in parallel with the target system to facilitate making predictions and/or decisions.…”

“…Efforts of using a DT in real-time systems for run-time WCET modelling and parameter adaptation were early discussed in [3,4]. The requirements and open challenges of adapting DT to the context of multi-core real-time systems have been discussed in [5]. Different to a cycle-accurate simulator, a Digital Twin often focuses on a higher level of abstraction where the key characteristics are identified.…”