Journal of Information Processing Systems

Korea Information Processing Society (한국정보처리학회)
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Implementation of Multipurpose PCI Express Adapter Cards with On-Board Optical Module

  • Koo, Kyungmo (Dept. of Supercomputer System Development, Korea Institute of Science and Technology Information) ;
  • Yu, Junglok (Dept. of Supercomputer System Development, Korea Institute of Science and Technology Information) ;
  • Kim, Sangwan (Dept. of Supercomputer System Development, Korea Institute of Science and Technology Information) ;
  • Choi, Min (Dept. of Information and Communication Engineering, Chungbuk National University) ;
  • Cha, Kwangho (Dept. of Supercomputer System Development, Korea Institute of Science and Technology Information)
  • Received : 2017.08.18
  • Accepted : 2017.11.06
  • Published : 2018.02.28
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Abstract

PCI Express (PCIe) bus, which was only used as an internal I/O bus of a computer system, has expanded its function to outside of a system, with progress of PCIe switching processor. In particular, advanced features of PCIe switching processor enable PCIe bus to serve as an interconnection network as well as connecting external devices. As PCIe switching processors more advanced, it is required to consider the different adapter card architecture. This study developed multipurpose adapter cards by applying an on-board optical module, a latest optical communications element, in order to improve transfer distance and utilization. The performance evaluation confirmed that the new adapter cards with long cable can provide the same bandwidth as that of the existing adapter cards with short copper cable.

Keywords

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Fig. 1. Conceptual structure of PCIe adapter card prototype.

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Fig. 2. Prototype of PCIe ¡¿8 adapter card.

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Fig. 3. Prototype of PCIe ¡¿16 adapter card.

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Fig. 4. PCUO module installed at ¡¿8 adapter card.

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Fig. 5. Signal selection module of our proposed scheme.

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Fig. 6. Conceptual diagram of experiment environment.

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Fig. 7. Proposed adapter card with on-board optical module vs. system local bus (¡¿16).

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Fig. 8. Proposed adapter card with on-board optical module vs. Broadcom adapter card with mini-SAScable.

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Table 1. Experimental equipment specification

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