Name
Abstract | ||
|---|---|---|
Exascale computing is the next step in high performance computing provided by systems composed of millions of interconnected processing cores. In order to guide the design and implementation of such systems, multiple workload characterization studies and system performance evaluations are required. This paper provides a workload characterization study in the context of the European Project ExaNeSt, which focuses, among others, on developing the network technology required to implement future exascale systems. In this work, we characterize different ExaNeSt applications from the computer network perspective by analyzing the distribution of messages, the dynamic bandwidth consumption, and the spatial communication patterns among cores. The analysis highlights three main observations; i) message sizes are, in general, below 50 kB; ii) communication patterns are usually bursty; and iii) spatial communication among cores concentrate in hot spots for most applications. Taking into account these observations, one can conclude that in order to unclog congested network links, an exascale network must be designed to briefly support higher-than-average bandwidths in the vicinity of key network cores. |
Year | DOI | Venue |
|---|---|---|
2018 | 10.1109/HPCS.2018.00069 | 2018 International Conference on High Performance Computing & Simulation (HPCS) |
Keywords | Field | DocType |
European project ExaNeSt,spatial communication pattern,spatial communication,key network cores,message sizes,dynamic bandwidth consumption,network technology,interconnected processing cores,high performance computing,exascale computing networks | Exascale computing,Supercomputer,Workload,Computer science,Parallel processing,Network topology,Bandwidth (signal processing),Dynamic bandwidth allocation,Distributed computing,Payload | Conference |
ISBN | Citations | PageRank |
978-1-5386-7880-0 | 0 | 0.34 |
References | Authors | |
5 | 4 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Jose Duro | 1 | 1 | 1.07 |
| Salvador Petit | 2 | 153 | 27.28 |
| Julio Sahuquillo | 3 | 420 | 53.71 |
| María Engracia Gómez | 4 | 149 | 17.48 |