Performance evaluation of optical packet switches on high performance applications

H. Meyer, J.C. Sancho, W. Miao, H.J.S. Dorren, N. Calabretta, M. Farreras

Onderzoeksoutput: Hoofdstuk in Boek/Rapport/CongresprocedureConferentiebijdrageAcademicpeer review

3 Citaten (Scopus)


This paper analyzes the performance impact of Optical Packet Switches (OPS) on parallel HPC applications. Because these devices cannot store light, in case of a collision for accessing the same output port in the switch only one packet can proceed and the others are dropped. The analysis focuses on the negative impact of packet collisions in the OPS and subsequent re-transmissions of dropped packets. To carry out this analysis we have developed a system simulator that mimics the behavior of real HPC application traffic and optical network devices such as the OPS. By using real application traces we have analyzed how message re-transmissions could affect parallel executions. In addition, we have also developed a methodology that allows to process applications traces and determine packet concurrency. The concurrency evaluates the amount of simultaneous packets that applications could transmit in the network. Results have shown that there are applications that can benefit from the advantages of OPS technology. Taking into account the applications analyzed, these applications are the ones that show less than 1% of packet concurrency; whereas there are other applications where their performance could be impacted by up to 65%. This impact is mostly dependent on application traffic behavior that is successfully characterized by our proposed methodology.

Originele taal-2Engels
Titel2015 International Conference on High Performance Computing and Simulation, HPCS 2015, 20-24 July 2015, Amsterdam, The Netherlands
Plaats van productiePiscataway
UitgeverijInstitute of Electrical and Electronics Engineers
Aantal pagina's8
ISBN van geprinte versie9781467378123
StatusGepubliceerd - 2 sep 2015
Evenement2015 International Conference on High Performance Computing & Simulation (HPCS 2015) - Hilton Amsterdam Hotel, Amsterdam, Nederland
Duur: 20 jul 201524 jul 2015


Congres2015 International Conference on High Performance Computing & Simulation (HPCS 2015)
Verkorte titelHPCS 2015
Internet adres

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