Name
Abstract | ||
|---|---|---|
InfiniBand is very likely to become the de facto standard for communication between nodes and I/O devices (SANs) as well as for interprocessor communication (NOWs). The InfiniBand Architecture (IBA) defines a switch-based network with point-to-point links whose topology is arbitrarily established by the customer. Often, the interconnection pattern is irregular. Up*/down* is the most popular routing scheme currently used in NOWs with irregular topologies. However, the main drawbacks of up*/down* routing are the unbalanced channel utilization and the difficulties to route most packets through minimal paths, which negatively affects network performance. Using additional virtual lanes can improve up*/down* routing performance by reducing the head-of-line blocking effect, but its use is not aimed to remove its main drawbacks. In this paper, we propose a new methodology that uses a reduced number of virtual lanes in an efficient way to achieve a better traffic balance and a higher number of minimal paths. This methodology is based on routing packets simultaneously through several properly selected up*/down* trees. To guarantee deadlock freedom, each up*/down* tree is built over a different virtual network. Simulation results, show that the proposed methodology increases throughput up to an average factor ranging from 1.18 to 2.18 for 8, 16, and 32-switch networks by using only two virtual lanes. For larger networks with an additional virtual lane, network throughput is tripled, on average. |
Year | DOI | Venue |
|---|---|---|
2002 | 10.1007/3-540-47847-7_7 | ISHPC |
Keywords | Field | DocType |
additional virtual lane,32-switch network,improving infiniband,popular routing scheme,larger network,minimal path,main drawback,network performance,virtual lane,network throughput,different virtual network,multiple virtual networks,point to point,negative affect | Virtual network,InfiniBand,Computer science,Static routing,Network packet,Deadlock,Computer network,Network topology,Throughput,Network performance,Distributed computing | Conference |
ISBN | Citations | PageRank |
3-540-43674-X | 8 | 0.85 |
References | Authors | |
14 | 5 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jose Flich | 1 | 125 | 8.18 |
| Pedro López | 2 | 233 | 16.39 |
| José Carlos Sancho | 3 | 382 | 29.97 |
| Antonio Robles | 4 | 481 | 30.40 |
| José Duato | 5 | 3481 | 294.85 |