Details of Research Outputs

Contiguous processor allocation improves both the network and the application performance, by decreasing the congestion probability among communication of different applications. Consequently, the average, standard deviation and worst-case latency of the network is decreased significantly. This makes the contiguous allocation a good solution for time-critical applications with bounded deadlines. On the other hand, non-contiguous allocation will increase the system throughput significantly. Isolated nodes are utilized and more applications can finish their job in a time unit. However, this will lead to poor network metrics, unsuitable for real-time applications. In this work, we combine these two approaches in order to manage workloads with mixed-critical characteristics. Real-time applications are mapped contiguously, while non-critical applications are allowed to get dispersed over the available system nodes. Results show over 50% improvement in worst-case latency and 100 times improvement in deadline misses. © 2014 IEEE.