TDOIN: A Novel Three-Dimensional Optical Interconnection Network for High Performance Computer

2012 ◽  
Author(s):  
Peng Chao ◽  
Sun Jiahui ◽  
Li Baoliang ◽  
Wang Junhui ◽  
Dou Wenhua
Keyword(s):  
High Performance ◽  
Interconnection Network ◽  
Three Dimensional ◽  
Optical Interconnection ◽  
High Performance Computer

Improved 3-D reconstruction using stereo computer graphics and multiple tilt EM images

1995 ◽  
Vol 53 ◽  
pp. 630-631
Author(s):  
Lee D. Peachey ◽  
Lou Fodor ◽  
John C. Haselgrove ◽  
Stanley M. Dunn ◽  
Junqing Huang
Keyword(s):  
Computer Graphics ◽  
High Performance ◽  
Transverse Section ◽  
Three Dimensional ◽  
Stereo Pair ◽  
3D Reconstructions ◽  
Video Cameras ◽  
Biological Objects ◽  
Microscope Images ◽  
High Performance Computer

Stereo pairs of electron microscope images provide valuable visual impressions of the three-dimensional nature of specimens, including biological objects. Beyond this one seeks quantitatively accurate models and measurements of the three dimensional positions and sizes of structures in the specimen. In our laboratory, we have sought to combine high resolution video cameras with high performance computer graphics systems to improve both the ease of building 3D reconstructions and the accuracy of 3D measurements, by using multiple tilt images of the same specimen tilted over a wider range of angles than can be viewed stereoscopically. Ultimately we also wish to automate the reconstruction and measurement process, and have initiated work in that direction.Figure 1 is a stereo pair of 400 kV images from a 1 micrometer thick transverse section of frog skeletal muscle stained with the Golgi stain. This stain selectively increases the density of the transverse tubular network in these muscle cells, and it is this network that we reconstruct in this example.

Energy-Efficient Optical Interconnects in Cloud Computing Infrastructures

2013 ◽  
pp. 463-478
Author(s):  
Christoforos Kachris ◽  
Ioannis Tomkos
Keyword(s):  
Cloud Computing ◽  
Power Consumption ◽  
Interconnection Networks ◽  
Optical Interconnects ◽  
High Performance ◽  
Interconnection Network ◽  
Research Literature ◽  
Optical Interconnection ◽  
High Bandwidth ◽  
Cloud Infrastructures

This chapter discusses the rise of optical interconnection networks in cloud computing infrastructures as a novel alternative to current networks based on commodity switches. Optical interconnects can significantly reduce the power consumption and meet the future network traffic requirements. Additionally, this chapter presents some of the most recent and promising optical interconnects architectures for high performance data centers that have appeared recently in the research literature. Furthermore, it presents a qualitative categorization of these schemes based on their main features such as performance, connectivity, and scalability, and discusses how these architectures could provide green cloud infrastructures with reduced power consumption. Finally, the chapter presents a case study of an optical interconnection network that is based on high-bandwidth optical OFDM links and shows the reduction of the energy consumption that it can achieve in a typical data center.

scholarly journals What do we need to trust in models?

2021 ◽  
Vol 1 ◽  
pp. 303-303
Author(s):  
Ingo Kock ◽  
Martin Navarro ◽  
Jens Eckel ◽  
Carsten Rücker ◽  
Stephan Hotzel
Keyword(s):  
High Performance ◽  
Numerical Models ◽  
Three Dimensional ◽  
Dimensional Representation ◽  
Model Calculations ◽  
The Public ◽  
Three Dimensional Representation ◽  
Persuasive Power ◽  
Weak Points ◽  
High Performance Computer

Abstract. Scientists working with numerical models may notice that their presentations of numerical results to non-specialists sometimes unfold substantial persuasive power. It seems obvious that someone has worked intensively on a topic, bundled information and solved complicated equations on a high-performance computer. The final result is a number, a curve or a three-dimensional representation. The computer has made no mistake, so the result can certainly be trusted. But can it? Those who do the modelling often know the weak points of their models and invest time in increasing the reliability of the model calculation. Trust in model calculations is usually based on rigorous quality assurance of data, programs, simulation calculations and result analyses. It requires appropriate handling of uncertainties. In view of the simplifications and idealizations of models it is also necessary to assess which model results are actually meaningful. Additionally, in most cases simplified or idealised models have been used and it is necessary to assess which model results are actually meaningful. We want to discuss what it takes to generate simulation results that can be considered reliable and how scientists can appropriately convey their confidence in their own models in discussions with the public. The framework of the discussion is provided by an introduction from Martin Navarro und Ingo Kock (BASE) and we are happy to have brief input from Thomas Nagel (TUBAF), Klaus-Jürgen Röhlig (TUC) and Wolfram Rühaak (BGE).

Design and analysis of high-performance switched optical interconnection network using WDM technology

2005 ◽  
Author(s):  
Zhixiang Sun ◽  
Yimo Zhang ◽  
Wencai Jing ◽  
Ge Zhou ◽  
Feng Tang ◽  
...  
Keyword(s):  
High Performance ◽  
Interconnection Network ◽  
Optical Interconnection

Energy-Efficient Optical Interconnects in Cloud Computing Infrastructures

2013 ◽  
pp. 224-240 ◽  
Author(s):  
Christoforos Kachris ◽  
Ioannis Tomkos
Keyword(s):  
Cloud Computing ◽  
Power Consumption ◽  
Interconnection Networks ◽  
Optical Interconnects ◽  
High Performance ◽  
Interconnection Network ◽  
Research Literature ◽  
Optical Interconnection ◽  
High Bandwidth ◽  
Cloud Infrastructures

This chapter discusses the rise of optical interconnection networks in cloud computing infrastructures as a novel alternative to current networks based on commodity switches. Optical interconnects can significantly reduce the power consumption and meet the future network traffic requirements. Additionally, this chapter presents some of the most recent and promising optical interconnects architectures for high performance data centers that have appeared recently in the research literature. Furthermore, it presents a qualitative categorization of these schemes based on their main features such as performance, connectivity, and scalability, and discusses how these architectures could provide green cloud infrastructures with reduced power consumption. Finally, the chapter presents a case study of an optical interconnection network that is based on high-bandwidth optical OFDM links and shows the reduction of the energy consumption that it can achieve in a typical data center.

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