scholarly journals Litmus-RT plugins for global static scheduling of mixed criticality systems

2021 ◽  
pp. 102221
Author(s):  
Laurent Pautet ◽  
Thomas Robert ◽  
Samuel Tardieu
Keyword(s):  
Static Scheduling ◽  
Mixed Criticality

Energy Optimization of Mixed-Criticality Distributed Real-Time Embedded Systems

2020 ◽  
pp. 2150085
Author(s):  
Ruoxu Sun ◽  
Jinyu Zhan ◽  
Wei Jiang ◽  
Qi Dong ◽  
Yalan Ye
Keyword(s):  
Real Time ◽  
System Level ◽  
Optimization Approach ◽  
Real Time Systems ◽  
Safety Requirements ◽  
Static Scheduling ◽  
Dynamic Voltage ◽  
Real Time Applications ◽  
Time Systems ◽  
Mixed Criticality

In this paper, we propose a system-level optimization approach for mixed-criticality distributed real-time systems with safety and energy considerations. We firstly depict a mixed-criticality distributed task model for real-time applications, in which the safety of the system is influenced by dynamic voltage and frequency scaling (DVFS). Due to the huge complexity of solving the problem optimally, a heuristic algorithm is proposed to approach the system-level optimization through a quasi-static scheduling strategy. The experiments demonstrate the efficiency of the proposed approach, which can obtain energy consumption while guaranteeing the system safety requirements.

scholarly journals DASS: Combining Dynamic and Static Scheduling in High-level Synthesis

2021 ◽  
pp. 1-1
Author(s):  
Jianyi Cheng ◽  
Lana Josipovic ◽  
George A. Constantinides ◽  
Paolo Ienne ◽  
John Wickerson
Keyword(s):  
High Level Synthesis ◽  
Static Scheduling ◽  
High Level

Hybrid Software Redundancy Approach for Building Reliable Communication in Multi-BUS Heterogeneous Systems

2016 ◽  
Vol 23 (04) ◽  
pp. 1650013
Author(s):  
Chafik Arar ◽  
Mohamed Salah Khireddine
Keyword(s):  
Fault Tolerant ◽  
Scheduling Algorithm ◽  
Heterogeneous Systems ◽  
Reliable Communication ◽  
Data Dependencies ◽  
Data Scheduling ◽  
Static Scheduling ◽  
Heterogeneous Architectures ◽  
Multiple Processors ◽  
Hardware Faults

The paper proposes a new reliable fault-tolerant scheduling algorithm for real-time embedded systems. The proposed algorithm is based on static scheduling that allows to include the dependencies and the execution cost of tasks and data dependencies in its scheduling decisions. Our scheduling algorithm is dedicated to multi-bus heterogeneous architectures with multiple processors linked by several shared buses. This scheduling algorithm is considering only one bus fault caused by hardware faults and compensated by software redundancy solutions. The proposed algorithm is based on both active and passive backup copies to minimize the scheduling length of data on buses. In the experiments, the proposed methods are evaluated in terms of data scheduling length for a set of DSP benchmarks. The experimental results show the effectiveness of our technique.

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