Time-Predictable Network for Real-Time Data-Centric Computing

1451 Words3 Pages

1. Introduction: With the advance of computer and communication technologies, the data centers support the characteristics of large scalability and high-performance data-intensive supercomputing capability. Also, the next generation data centers need to manage and process exponentially growing data volumes, often arriving in time-sensitive streams from arrays of sensors and instruments or as the outputs from simulations [1]. Therefore, these time-sensitive streams demand the real-time response from the data centers, which becomes an important challenge to the next generation data center network. For instance, health care imaging systems illustrate the need for both high data rates and real-time cataloging. Also, high energy physics experiments, which generate high rates and massive volumes of data that must be processed and archived in real-time [2]. In the past decades, a lot of research efforts are put into the data center network architecture to satisfy the growing data-intensive computing. However, these works only focus on the scalability, power efficiency, etc [3, 11]. What is surprising to us, a time-predictable network for the real-time data-centric computing is still not carefully investigated. Also, the current TCP/IP based network architecture cannot provide the characteristics of time-predictable to the data-centric computing. TCP/IP and CSMA/CD are the two factors that most strongly influence timing control [4], since TCP/IP is a try-best network and CSMA/CD employs an exponential back-off mechanism to circumvent collisions. Thus, it is important to propose a time-predictable network for data-centric computing to support accurate communication latency estimation. 2. Research Proposal: To address thi... ... middle of paper ... ... et al., Reliable Real-Time Communication in CAN Networks, in the IEEE transactions on Computers, Dec. 2003. [8]. T. Pop, et al., Timing Analysis of the FlexRay Communication Protocol, in the proceedings of 18th Euro-micro Real-Time Systems, 2006. [9]. W. Elmenreich, et al., A Comparison of Field bus Protocols: LIN 1.3, LIN 2.0, and TTP/A, in the proceedings of the 10th IEEE Emerging Technologies and Factory Automation, 2005. [10]. R. Kouzes, The Changing Paradigm of Data-Intensive Computing, in the Journal of Computers, Vol. 42, 2009. [11]. Turning Challenges into Opportunities in the Data Center, Intel Inc., 2007. [12]. T. Pop, et al., Timing Analysis of the FlexRay Communication Protocol, in the Proceedings of 18th Euromicro Conference on Real-Time Systems, 2006. [13]. FlexRay Communications System Protocol Specification, Rev. A, Version 2.1, 2005.

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