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First International Workshop on Massively Parallel Processing Using Optical Interconnections

26-27 April 1994

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  • First International Workshop on Massively Parallel Processing Using Optical Interconnections

    Publication Year: 1994
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    Freely Available from IEEE
  • Parallel optoelectronic multiplexer architectures

    Publication Year: 1994, Page(s):252 - 254
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (204 KB)

    Parallel optoelectronic multiplexers benefit from the large number of I/O channels available in free-space optics. The comparative advantage of parallel over serial I/O is less power dissipation per unit area and less self-inductance noise, which lead to higher performance and higher reliability, respectively. The penalty is increased communication latency, but for a given message size, the latenc... View full abstract»

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  • Design considerations for optical interconnects in parallel computers

    Publication Year: 1994, Page(s):306 - 322
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1224 KB)

    Communication complexity and latency is a critical problem in multiprocessor systems. A significant portion of communication latency is associated with the interconnect network. Optics has many advantages for achieving low latency, scalable interprocessor communication. The author identifies significant ways in which optical technology can boost network functionality and performance when key archi... View full abstract»

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  • Topologies and technologies for optically interconnected multicomputers using inverted graphs

    Publication Year: 1994, Page(s):255 - 265
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (948 KB)

    To successfully exploit the benefits of optical technology in a tightly-coupled multicomputer, the architectural design must reflect both the advantages of optics and the limitations of optics. The authors describe a class of such architectures, based upon inverted graph topologies. Two instances of this class (an inverted hypercube and an inverted mesh) are further explored to illustrate their pr... View full abstract»

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  • Optical, processing-less massively parallel processing interconnection networks

    Publication Year: 1994, Page(s):323 - 330
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (72 KB)

    The authors attempt to form a coherent picture that may suggest possible future directions of using the benefits optics has to offer, yet avoiding its drawbacks for optical interconnection networks. Possible questions addressed include: What is the nature of (some) parallel applications that may be used to avoid optical processing in the network? How can reconfiguration be used in an efficient way... View full abstract»

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  • Optoelectronic parallel processing with straight-pass optical interconnections and smart pixel arrays

    Publication Year: 1994, Page(s):170 - 181
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (824 KB)

    Several fine and medium grain parallel computer architectures comprise multiple stages of 2D processing element arrays. The parallel massive interconnections between two such stages can be implemented in optics. Straight-pass interconnections, as one possible interconnection scheme, can be easily realized with a lens or a lenslet array and their simplicity and regularity permits easy scale-up. We ... View full abstract»

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  • Optical interprocessor communication protocols

    Publication Year: 1994, Page(s):266 - 274
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (728 KB)

    We study routing properties of an optical communication architecture for parallel computing. The building block of the system is a model called the Optical Communication Parallel Computer (OCPC). The units of this computer (processors with local memory) communicate with each other by transmitting messages. A processor can transmit a message to any other processor, and to the same processor neither... View full abstract»

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  • Holographic optical interconnections

    Publication Year: 1994, Page(s):237 - 240
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    Introduces a new type of planar optical interconnect, the transverse holographic waveguides. With this type of interconnect, one dimensional, input light distribution is converted into a one dimensional output light distribution via holographic patterning along the direction of the optical wave propagation View full abstract»

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  • Fabrication issues for free-space optics at the board packaging level

    Publication Year: 1994, Page(s):45 - 51
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    The successful application of optical interconnects to electronic processing systems requires careful consideration of the: electronic system in which it will be used; optical system and electro-optical device performance; electrical-electro optic interface characteristics; packaging of micro optic components and electro-optic devices with electronic substrates; and the reliability of optical inte... View full abstract»

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  • Photonic architectures for distributed shared memory multiprocessors

    Publication Year: 1994, Page(s):151 - 161
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (904 KB)

    This paper studies the interaction between the access protocol used to provide arbitration for a wavelength-division multiple access photonic network and the cache coherence protocol required to support a distributed shared memory environment. The architecture is based on wavelength division multiplexing which enables multiple multi-access channels to be realized on a single optical fiber. Larger ... View full abstract»

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  • Hybrid multiprocessing using WDM optical fiber interconnections

    Publication Year: 1994, Page(s):182 - 196
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1112 KB)

    We present the design of a wavelength division multiplexed fiber optic bus for multiprocessors that allows both the shared memory model and the distributed memory model to be supported efficiently. We establish this by presenting the results of a fairly detailed trace-driven simulation of the performance of a system using the proposed interconnection. We also discuss some of the engineering issues... View full abstract»

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  • Massively parallel processing: optical interconnects according to a system to device approach

    Publication Year: 1994, Page(s):94 - 105
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1052 KB)

    Despite the undisputable success in the telecommunication area, applications of optical interconnect techniques to the crate-to-crate, node-to-node, chip-to-chip and gate-to-gate level within a Massively Parallel Computer architecture have still failed to materialize. Questions, such as whether to choose for a serial ultra-high or a parallel moderate data throughput rate, always considering a logi... View full abstract»

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  • Optical 2-dimensional multiple-broadcasting for massively parallel multicomputers

    Publication Year: 1994, Page(s):275 - 280
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    The Melbourne University Optoelectronic Multicomputer Project is investigating dense optical interconnection networks capable of providing low-latency data transfer of 32 or 64 bits. The networks developed do not need any optical switches and are therefore suited for implementation with state-of-the-art optical technology. The research is concentrating on two-dimensional topologies that broadcast ... View full abstract»

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  • Optical interconnects based on two-dimensional VCSEL arrays

    Publication Year: 1994, Page(s):202 - 212
    Cited by:  Papers (5)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (884 KB)

    Free space optical interconnects offer an exciting alternative to conventional packaging for electronic systems which uses planar board and backplane structures. The alternative, which shall be called 3D packaging, involves using the space perpendicular to the processing planes for free-space optical beams that transport the data between the planes. 3D packaging is very appealing for tightly-coupl... View full abstract»

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  • Optical interconnection and massively parallel processing

    Publication Year: 1994, Page(s):118 - 132
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    The optical interconnection plays an important role of realization in massively parallel computation. This is well recognized, but it is not clear how the optical interconnection works in parallel processing. The authors revisit the relationships between optical interconnection and parallel data processing. Their view is originally architecture-oriented, but it will be profitable also for device-o... View full abstract»

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  • Design considerations and algorithms for partitioning opto-electronic multichip modules

    Publication Year: 1994, Page(s):59 - 69
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (860 KB)

    There is considerable interest in developing optical interconnects for multi-chip modules (MCM). As a consequence, there is a basic need in developing a methodology for partitioning the system for effective utilization of the optical and electronic technologies. For the given netlist of a system design, key question to be answered is where to use optical interconnections. The authors introduce the... View full abstract»

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  • Data motion and high performance computing

    Publication Year: 1994, Page(s):1 - 18
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1288 KB)

    Efficient data motion has been of critical importance in high performance computing almost since the first electronic computers were built. Providing sufficient memory bandwidth to balance the capacity of processors led to memory hierarchies, banked and interleaved memories. With the rapid evolution of MOS technologies, microprocessor and memory designs, it is realistic to build systems with thous... View full abstract»

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  • Considerations for optoelectronic shared cache parallel computers

    Publication Year: 1994, Page(s):241 - 251
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (712 KB)

    Discusses the selection and use of optoelectronic devices in parallel computers to increase the effective processing rate. The coherence problem of keeping consistent copies of data in all caches is resolved by using shared optoelectronic cache memories. The authors investigate the architecture, data and signal modulation, memory management, and its physical implementation. The proposed architectu... View full abstract»

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  • Reconfigurable multiple-behavioural architecture using free-space optical communication

    Publication Year: 1994, Page(s):293 - 305
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    We describe a fully configurable, parallel architecture based on free-space optical communication. The noninterference and free-space transmission of light are exploited to provide parallel and arbitrary communications both within and among the processors. Matrix-addressed SLMs (spatial light modulators) are used to develop a computer model of the proposed scheme. Special instructions allowing use... View full abstract»

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  • Order statistics on optically interconnected multiprocessor systems

    Publication Year: 1994, Page(s):162 - 169
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB)

    Processor arrays with an optical bus are introduced as a new computational model. We use the order statistics problem as an example to demonstrate how to design efficient parallel algorithms on such systems. Besides proposing a new algorithm on the model, some basic data movement operations involved in the algorithm are discussed. We believe that these operations can be used to design other parall... View full abstract»

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  • Reconfigurable optical interconnects for computer vision applications

    Publication Year: 1994, Page(s):224 - 236
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (840 KB)

    Evaluates the advantages of reconfigurable optical interconnects within massively parallel systems due to their ability to provide versatile application-dependent network configurations. Furthermore, they are being considered as alternatives to electronic interconnects within high-performance computers because of their advantages of high bandwidth, low wire density and low power requirement at hig... View full abstract»

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  • Optical interconnection system using stacked thin film modulator and detector

    Publication Year: 1994, Page(s):140 - 150
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (604 KB)

    Proposes a new optical connection system using thin film modulators and detectors on top of silicon VLSI chips. The advantage of this system is that the entire chip area could be dedicated to processor and memory circuits. Such a system could offer large bandwidth parallel communication channels for multiprocessors, based entirely on proven, compatible materials and processes and could be accompli... View full abstract»

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  • A hypercube-based optical interconnection network: a solution to the scalability requirements for massively parallel computers

    Publication Year: 1994, Page(s):81 - 93
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (984 KB)

    An important issue in the design of interconnection networks for massively parallel computers is scalability. Size-scalability refers to the property that the number of nodes in the network can be increased with negligible effect on the existing configuration and generation-scalability implies that the communication capabilities of a network should be large enough to support the evolution of proce... View full abstract»

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  • Fan in loss in electrical and optical circuits and systems

    Publication Year: 1994, Page(s):197 - 201
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    Analogies between the fan-in limitations of linear electrical circuits and linear optical circuits are explored. In both cases, the second law of thermodynamics sets the limits as to the amount of power that can be coupled from multiple inputs into a single output. The limitation applies to the power coupled into a single (properly defined) output “mode” from a set of input modes. Whil... View full abstract»

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  • Demonstration of all-optical self-clocked demultiplexing of TDM data at 250 Gb/s

    Publication Year: 1994, Page(s):106 - 117
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    Reports the first demonstration of all-optical self-clocked demultiplexing of TDM data at 250 Gb/s. The demultiplexer, called a “TOAD”, is compact and requires sub-picojoule switching energy. Cross-talk measurements of pseudorandom data in adjacent, 4 ps-width time slots exhibit a BER of less than 10-9 with strong jitter immunity View full abstract»

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