Name
Abstract | ||
|---|---|---|
The fat-tree topology has become a popular choice for InfiniBand enterprise systems due to its deadlock freedom, fault-tolerance and full bisection bandwidth. In the HPC domain, InfiniBand fabric is used in almost 42% of the systems on the latest Top 500 list, and many of those systems are based on the fat-tree topology. Despite the popularity of the fat-tree topology, little research has been done to compare the behavior of InfiniBand routing algorithms on degraded fat-tree topologies. In this paper, we identify the weaknesses of the current fat-tree routing and propose enhancements that liberalize the restrictions imposed on the routed fabric. Furthermore, we present a thorough analysis of non-proprietary routing algorithms that are implemented in the InfiniBand Open Subnet Manager. Our results show that even though the performance of a fat-tree routed network deteriorates predictably with the number of failed links, fat-tree routing algorithm is still the best choice for severely degraded fat-tree fabrics. |
Year | DOI | Venue |
|---|---|---|
2012 | 10.1109/PDCAT.2012.67 | PDCAT |
Keywords | DocType | Citations |
infiniband enterprise system,current fat-tree routing,infiniband fabric,degraded fat-tree fabric,infiniband routing algorithm,fat-tree topology,non-proprietary routing algorithm,fat-tree routing algorithm,degraded fat-trees,degraded fat-tree topology,infiniband open subnet manager,routing algorithms,fault tolerance,fat tree | Conference | 1 |
PageRank | References | Authors |
0.35 | 18 | 4 |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Bartosz Bogdanski | 1 | 41 | 4.53 |
| Bjorn Dag Johnsen | 2 | 29 | 5.92 |
| Sven-Arne Reinemo | 3 | 184 | 12.64 |
| Frank Olaf Sem-Jacobsen | 4 | 66 | 7.64 |