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Gesellschaft für Informatik e.V. (GI) Informationstechnische Gesellschaft im VDE (ITG)

ARCS 2014 - Architecture of Computing Systems
University of Luebeck » Institute of Computer Engineering » ARCS 2014

Invited Talks

Karl Hendrik Johansson, KTH Royal Institute of Technology, Sweden

Control of Cyber-physical Systems: Fundamental Challenges and Applications to Transportation Networks


Cyber-physical systems are engineered systems whose operations are monitored, coordinated, controlled, and integrated by computing and communication cores interacting with humans and the physical environment. In this talk, we will dis- cuss some recent developments on control architectures for cyber-physical sys- tems. Motivated by application projects in goods transportation, we will consider the influence of local and partial plant state and model information on the syn- thesis problem. Some fundamental bounds relating global system performance with local information exchange and physical interactions will be introduced. Details will be given on an emerging goods transportation system based on fleets of platooning heavy-duty vehicles utilizing vehicle-to-vehicle and vehicle- to-infrastructure communications. Some preliminary results from a large-scale evaluation currently being performed on the highway road network in North- ern Europe will be discussed, showing the fuel saving and transport efficiency potentials of the system but also some of the challenges with humans in the loop and technology transfer. The presentation will be based on joint work with collaborators at KTH and at Scania.

Ravi Nair, IBM Thomas J. Watson Research Center, Yorktown Heights, NY, USA

Approximate Computing


There is an unprecedented amount of data being produced in the world to- day. Yet, cost and energy considerations are limiting a corresponding growth in the compute capability needed to process and analyze this data in a con- ventional manner. The adoption of computing devices by a wider segment of the world's population is leading to computing of the sort where the results are often ephemeral, and where there is a greater acceptance of approximate results. In addition though, approximate results are acceptable even in enter- prise computing where, in comparison to traditional activities like accounting and inventory control, new activities such as decision support, search and data- mining are consuming increasingly greater cycles and are frequently performed on input data that may be unreliable. It is becoming evident that there are sig- nificant computational and energy efficiencies to be gained by relaxing the ex- pectation of preciseness in today's computational models and moving to a more approximate computing model. This talk will examine the implications of this notion of approximate computing on the exploitation of new technology and on the design of future systems.

Thomas Ludwig, DKRZ Deutsches Klimarechenzentrum GmbH, Germany

High Performance Computers for Earth System Science


Earth system science has a long tradition in using high performance computers. The process of gaining new insight heavily depends on the available compute power. For decades we observe an exponential increase in this compute power. With the advent of Exascale architectures we are faced with new challenges for this research community. The talk will highlight options for new types of research as well as risks to be able to conduct specific investigations.

Contact

Prof. Dr.-Ing. Erik Maehle
Email: maehle@iti.uni-luebeck.de

University of Luebeck
Institute of Computer Engineering
Ratzeburger Allee 160
23562 Luebeck, Germany

Tel.: +49.451.500.3690
Fax: +49.451.500.3687