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NoC Topology
Published in Marcello Coppola, Miltos D. Grammatikakis, Riccardo Locatelli, Giuseppe Maruccia, Lorenzo Pieralisi, Design of Cost-Efficient Interconnect Processing Units, 2020
Marcello Coppola, Miltos D. Grammatikakis, Riccardo Locatelli, Giuseppe Maruccia, Lorenzo Pieralisi
High-radix micro-architectures signify a shift from conventional low-radix topologies, such as 2- and 3-d torus or mesh. In fact, a high-radix (64) router has been implemented in the Cray YARC router used in the modified folded-Clos interconnection network of the Cray BlackWidow supercomputer which introduces extra links to connect directly neighboring subtrees [304]. This network offers twice the performance of a comparable-cost Clos network on balanced traffic.
Optimizing Asynchronous On-Chip Networks
Published in Wei Song, Guangda Zhang, Asynchronous On-Chip Networks and Fault-Tolerant Techniques, 2022
A switching network is a switch architecture which dynamically connects input ports to output ports. Clos networks are a class of multi-stage switching networks [54] providing the theoretically optimal solution for high-radix switches.
Multilevel CLOS data stream exchange algorithm based on smoothed round-robin fair scheduling
Published in International Journal of Computers and Applications, 2022
In modern society, the network environment is becoming more and more complex, and the network procedures are becoming more and more diverse. The importance of the network is also improving. More and more work is based on network operation, and a large number of data are dispersed, resulting in the problem of network security and energy consumption. For these problems, multilevel CLOS networks are becoming more and more popular because of their strong modularity and good scalability and the ability to achieve strict non-blocking in the exchange network [1]. Real-time task scheduling algorithm plays a very important role in the performance of multilevel CLOS network. The performance of the multilevel CLOS network depends on the quality of the scheduling algorithm and the scheduling results. With the continuous improvement of the accuracy and response time of real-time system in real production, the importance of real-time task scheduling algorithm is also increasing. A good scheduling algorithm can not only save time and resources, but also make the scheduling results more optimized. On the contrary, a scheduling algorithm with larger defect not only leads to waste of resources and time, but also more likely to not obtain the final scheduling result. With the improvement of the performance requirements of real-time systems in actual production, more and more experts and scholars have been getting more and more profound research on the scheduling problem in the real-time system [2].