A Study of MPI Communication on a Next Generation Optical Interconnect
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- TAKIZAWA Shin'ichiro
- Tokyo Institute of Technology
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- ENDO Toshio
- Tokyo Institute of Technology
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- MATSUOKA Satoshi
- Tokyo Institute of Technology National Institute of Informatics
Bibliographic Information
- Other Title
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- 次世代光インターコネクトでのMPI通信に関する研究
- ジセダイ ヒカリ インターコネクト デ ノ MPI ツウシン ニ カンスル ケンキュウ
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Abstract
For future HPC systems which embody tens of thousands of processors, it will be unfeasible to construct a fully-connected packet switching network with high bisection bandwidth due to cost and power consumption, etc. We propose a low cost hybrid network which exploits an EPS network whose bandwidths of upstream links are narrow and an OCS network. Moreover, we propose a forwarding based communication methodology where optical pathways are used as shortcuts of EPS upstream links for MPI applications. From results of simulation, we confirmed that combination of our network with our communication methodology achieved better performance than that of full bisection EPS only network with only small number of optical pathways in case of communication pattern which has locality. We also confirmed that in case of all-to-all communication, which does not have locality, the combination achieved almost the same performance as that of EPS only network whose upstream link bandwidth is twice larger than that of EPS network in our network.
Journal
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- Computer Software
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Computer Software 26 (3), 5-19, 2009
Japan Society for Software Science and Technology
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Details 詳細情報について
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- CRID
- 1390001204737362560
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- NII Article ID
- 10025982459
- 130004549144
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- NII Book ID
- AN10075819
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- NDL BIB ID
- 10403855
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- ISSN
- 02896540
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- Data Source
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- JaLC
- NDL
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed