Mostra el registre d'ítem simple
Analyzing the impact of communication imbalance in high-speed networks
dc.contributor.author | Utrera Iglesias, Gladys Miriam |
dc.contributor.author | Gil, Marisa |
dc.contributor.author | Martorell Bofill, Xavier |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors |
dc.date.accessioned | 2018-02-15T10:05:44Z |
dc.date.available | 2018-12-20T01:30:42Z |
dc.date.issued | 2017-12-21 |
dc.identifier.citation | Utrera, G., Gil, M., Martorell, X. Analyzing the impact of communication imbalance in high-speed networks. "Concurrency and computation. Practice and experience", 10 Abril 2018, vol. 30, núm. 7, p. 1-15. |
dc.identifier.issn | 1532-0626 |
dc.identifier.uri | http://hdl.handle.net/2117/114138 |
dc.description.abstract | In this work we analyze the communication load imbalance generated by irregular-data applications running in a multi-node cluster. Experimental approaches to diminish communication load imbalance are evaluated using a hybrid programming model MPI+OpenMP including certain optimizations like computation-communication overlap, issuing communications in parallel and a new proposal based on message fragmentation in order to take advantage of the eager-protocol. Performance results show that overlapped versions can obtain a great benefit of this optimization because it avoids switching to rendez-vous protocols. However, non-overlapped versions showed better performance than overlapped ones. To evaluate also the impact due to network latency, the work has been tested on two high-speed interconnection networks: Infiniband and 10Gigabit Ethernet. In this case, the optimizations in the non-overlapped miniFE benchmark reached and improvement up to 7% on Infiniband and 11% on 10Gigabit. |
dc.format.extent | 15 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Informàtica::Arquitectura de computadors |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors::Trànsit de dades |
dc.subject.lcsh | Computer networks -- Design and construction |
dc.subject.lcsh | Computer networks -- Scalability |
dc.subject.lcsh | Telecommunication -- Traffic -- Management |
dc.subject.other | High performance interconnection networks |
dc.subject.other | Load balancing |
dc.subject.other | Message size |
dc.subject.other | MPI library |
dc.subject.other | Scalable computing |
dc.title | Analyzing the impact of communication imbalance in high-speed networks |
dc.type | Article |
dc.subject.lemac | Ordinadors, Xarxes d' -- Disseny i construcció |
dc.subject.lemac | Telecomunicació -- Tràfic -- Gestió |
dc.contributor.group | Universitat Politècnica de Catalunya. CAP - Grup de Computació d'Altes Prestacions |
dc.identifier.doi | 10.1002/cpe.4394 |
dc.description.peerreviewed | Peer Reviewed |
dc.relation.publisherversion | https://doi.org/10.1002%2Fcpe.4394 |
dc.rights.access | Open Access |
local.identifier.drac | 21886284 |
dc.description.version | Postprint (author's final draft) |
dc.relation.projectid | info:eu-repo/grantAgreement/Projecte R+D+I competitiu/CICYT |
dc.relation.projectid | info:eu-repo/grantAgreement/MINECO//TIN2015-65316-P/ES/COMPUTACION DE ALTAS PRESTACIONES VII/ |
local.citation.author | Utrera, G.; Gil, M.; Martorell, X. |
local.citation.publicationName | Concurrency and computation. Practice and experience |
local.citation.volume | 30 |
local.citation.number | 7 |
local.citation.startingPage | 1 |
local.citation.endingPage | 15 |
Fitxers d'aquest items
Aquest ítem apareix a les col·leccions següents
-
Articles de revista [1.049]
-
Articles de revista [382]