QAFT: A QoS-Aware Fault-Tolerant Scheduling Algorithm for Real-Time Tasks in Heterogeneous Systems

2010 ◽  
Author(s):  
Xiaomin Zhu ◽  
Jianghan Zhu ◽  
Manhao Ma ◽  
Dishan Qiu
Keyword(s):  
Real Time ◽  
Fault Tolerant ◽  
Scheduling Algorithm ◽  
Heterogeneous Systems

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.

scholarly journals An Efficient Fault-Tolerant Multi-Bus Data Scheduling Algorithm Based on Replication and Deallocation

2016 ◽  
Vol 16 (2) ◽  
pp. 69-84
Author(s):  
Chafik Arar ◽  
Mohamed Salah Khireddine
Keyword(s):  
Embedded Systems ◽  
Real Time ◽  
Fault Tolerant ◽  
Scheduling Algorithm ◽  
Experimental Results ◽  
Data Scheduling ◽  
Heterogeneous Architectures ◽  
Hardware Faults

Abstract The paper proposes a new reliable fault-tolerant scheduling algorithm for real-time embedded systems. The proposed scheduling algorithm takes into consideration only one bus fault in multi-bus heterogeneous architectures, 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, this paper evaluates the proposed methods in terms of data scheduling length for a set of DAG benchmarks. The experimental results show the effectiveness of our technique.

Superposed Redundancy Approach for Building Reliable Communication in Multi-Bus Heterogeneous Systems

2019 ◽  
Vol 10 (1) ◽  
pp. 1-21
Author(s):  
Chafik Arar
Keyword(s):  
Fault Tolerant ◽  
Scheduling Algorithm ◽  
Heterogeneous Systems ◽  
List Scheduling ◽  
Reliable Communication ◽  
Data Scheduling ◽  
New Variant ◽  
Hardware Faults

In this article, the author uses a new variant of passive redundancy, which allows for a fictitious dual assignment by simultaneously scheduling two backup copies that overlap on the same communication bus at a given time. The proposed reliable fault tolerant greedy list scheduling algorithm is based on a superposed backup copy. This scheduling algorithm is considering up to n communication buses faults, caused by hardware faults and compensated by software redundancy solutions. it allows a reliable communication and efficient use of buses. In the experiments, the proposed methods are evaluated in terms of data scheduling length for a set of DSP benchmarks from the DSPstone.

scholarly journals Energy-Efficient Fault-Tolerant Scheduling Algorithm for Real-Time Tasks in Cloud-Based 5G Networks

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 53671-53683 ◽  
Author(s):  
Pengze Guo ◽  
Ming Liu ◽  
Jun Wu ◽  
Zhi Xue ◽  
Xiangjian He
Keyword(s):  
Real Time ◽  
Energy Efficient ◽  
Fault Tolerant ◽  
Scheduling Algorithm ◽  
5G Networks
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