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Massively Parallel Processing Using Optical Interconnections, 1994., Proceedings of the First International Workshop on

Date 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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  • 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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  • Optical interprocessor communication protocols

    Publication Year: 1994, Page(s):266 - 274
    Cited by:  Papers (3)
    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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  • 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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  • Fan in loss in electrical and optical circuits and systems

    Publication Year: 1994, Page(s):197 - 201
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    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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  • 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 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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  • 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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  • Optical interconnects based on two-dimensional VCSEL arrays

    Publication Year: 1994, Page(s):202 - 212
    Cited by:  Papers (5)  |  Patents (1)
    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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  • Time-space-wavelength networks for low-complexity processor interconnection

    Publication Year: 1994, Page(s):281 - 292
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (968 KB)

    The authors study a flexible hierarchic design approach of large processor networks with distributed media access. The cluster-based interconnection combines passive metal buses and passive optical star couplers at two hierarchic levels, independently employing interleaved TDMA for conflict-free interprocessor communication. The system delay analysis highlights the tradeoffs of arbitrarily combini... View full abstract»

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  • Optically augmented 3-D computer: technology and architecture

    Publication Year: 1994, Page(s):133 - 139
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (532 KB)

    In order to achieve high performance parallel computing in terms of bandwidth versus power consumption and volume, denser and faster means of implementing interconnections while minimizing power and crosstalk are required. Global interconnections can be implemented using free-space interconnect technology and can be coupled to the wafer to wafer connection system developed at Hughes Research labor... View full abstract»

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  • A model for a reconfigurable fine-grained optoelectronic processor

    Publication Year: 1994, Page(s):19 - 26
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (608 KB)

    A model for a dataflow based processor is described in which a program written in a high level language is mapped directly to hardware. The concept is to reconfigure the interconnection network among an array of processing elements (PEs) to match the natural form of a computation, as represented by a dataflow graph. Communication among PEs is handled optically using free-space interconnects. A gro... 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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  • 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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  • 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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  • Performance evaluation of optical systems for multistage interconnection networks

    Publication Year: 1994, Page(s):213 - 223
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (676 KB)

    Some guidelines of the performance evaluation of an all-optical architecture are presented. This basic architecture supports bursty traffic. It can be used as the switching building block far a number of interconnection networks. The power analysis of an all optical buffering architecture that can be interfaced with such an element is discussed. The performance evaluation is given in terms of the ... View full abstract»

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  • Free space optical message routing for high performance parallel computers

    Publication Year: 1994, Page(s):37 - 44
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (596 KB)

    We survey various electrooptical message routing systems for sending N messages between N processors and discuss the theory and practice of these systems. In particular, we compare these proposed systems with respect to various metrics including time, space, number of switches, bandwidth, energy, as well as estimates to scalability and cost in current technology. There are two classes of interconn... 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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  • 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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  • 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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  • Demonstration of all-optical self-clocked demultiplexing of TDM data at 250 Gb/s

    Publication Year: 1994, Page(s):106 - 117
    Cited by:  Papers (3)
    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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  • Optical interconnection system using stacked thin film modulator and detector

    Publication Year: 1994, Page(s):140 - 150
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    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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  • 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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  • 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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