Softening Up the Network for Scientific Applications

Celio Trois, Luis C. Bona, Marcos D. Del Fabro, Magnos Martinello, Sarvesh Bidkar, Reza Nejabati, Dimitra Simeonidou

Research output: Chapter in Book/Report/Conference proceedingConference Contribution (Conference Proceeding)

1 Citation (Scopus)
311 Downloads (Pure)

Abstract

Scientific applications demand huge computational power connected through fast networks. They are developed using parallel kernel methods, usually implemented with the Message Passing Interface (MPI), presenting well-behaved communication patterns across computing nodes. The current network technologies do not allow defining traffic forwarding policies considering the different application traffic, resulting in an unbalanced load on the network links. Moreover, the devices are not concerned if the traffic is latency-sensitive or bandwidthintensive. To handle this, we present NetSA, a framework exploiting the communication patterns of scientific applications, considering latency and bandwidth constraints, as the key logic for evenly placing the application flows on the network available paths. Through NetSA, the scientific application developer can easily modify the network behavior to best fit the application communication requirements. We have performed experiments for optimizing the MPI communication primitives and applied our solution to speed up scientific applications, obtaining an execution time reduction up to 27%.
Original languageEnglish
Title of host publication2017 25th Euromicro International Conference on Parallel, Distributed, and Network-Based Processing (PDP 2017)
Subtitle of host publicationProceedings of a meeting held 6-8 March 2017, St. Petersburg, Russia
PublisherInstitute of Electrical and Electronics Engineers (IEEE)
Pages108-115
Number of pages8
ISBN (Electronic)9781509060580
ISBN (Print)9781509060597
DOIs
Publication statusPublished - May 2017
Event25rd Euromicro International Conference on Parallel, Distributed, and Network-Based Processing (PDP 2017) - Original Sokos Hotel Olympia Garden, St. Petersburg, Russian Federation
Duration: 6 Mar 20178 Mar 2017
http://www.pdp2017.org/

Publication series

NameParallel, Distributed, and Network-Based Processing (PDP), 2017 25th Euromicro International Conference on
PublisherIEEE
ISSN (Electronic)2377-5750

Conference

Conference25rd Euromicro International Conference on Parallel, Distributed, and Network-Based Processing (PDP 2017)
Abbreviated titlePDP 2017
CountryRussian Federation
CitySt. Petersburg
Period6/03/178/03/17
Internet address

Keywords

  • Software-Defined Networking
  • Scientific Application
  • Network Management
  • Communication Patterns

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