{"title":"Efficient communication operations on passive optical star networks","authors":"F. Desprez, A. Ferreira, B. Tourancheau","doi":"10.1109/MPPOI.1994.336639","DOIUrl":"https://doi.org/10.1109/MPPOI.1994.336639","url":null,"abstract":"We show how to use the wavelength division multiple access capabilities of passive optical star networks for efficiently implementing communication operations that are widely used in parallel applications. We propose algorithms for multiple broadcasting, scattering, gossiping and multi-scattering, which are very close to the lower bound for these problems.<<ETX>>","PeriodicalId":254893,"journal":{"name":"First International Workshop on Massively Parallel Processing Using Optical Interconnections","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121818271","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Optical interconnection and massively parallel processing","authors":"T. Ae, S. Fujita, T. Ando, K. Sakai, Y. Fujihara","doi":"10.1109/MPPOI.1994.336633","DOIUrl":"https://doi.org/10.1109/MPPOI.1994.336633","url":null,"abstract":"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-oriented research.<<ETX>>","PeriodicalId":254893,"journal":{"name":"First International Workshop on Massively Parallel Processing Using Optical Interconnections","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116953531","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A.M. Butrym, N. Craft, D. Guise, M. Murdocca, F. Sauer
{"title":"A model for a reconfigurable fine-grained optoelectronic processor","authors":"A.M. Butrym, N. Craft, D. Guise, M. Murdocca, F. Sauer","doi":"10.1109/MPPOI.1994.336642","DOIUrl":"https://doi.org/10.1109/MPPOI.1994.336642","url":null,"abstract":"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 group of vertical cavity surface emitting lasers (VCSELs) is dedicated to each output port of a PE, which corresponds to an arc in a dataflow graph. Outputs of the VCSELs are imaged through a reconfigurable optical permutation network that redirects beams to their destinations. This combination of optics and electronics may support fine-grained parallelism while balancing time spent in communication with time spent in computation.<<ETX>>","PeriodicalId":254893,"journal":{"name":"First International Workshop on Massively Parallel Processing Using Optical Interconnections","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124352309","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reconfigurable optical interconnects for computer vision applications","authors":"P. Lalwaney, I. Koren","doi":"10.1109/MPPOI.1994.336623","DOIUrl":"https://doi.org/10.1109/MPPOI.1994.336623","url":null,"abstract":"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 high data rates. Fiber optic interconnects based on wavelength division multiplexing and free-space holographic interconnects are two classes of optical interconnects that can support network reconfiguration. Using computer vision applications, the authors compare these two classes of optical interconnects with electronic interconnects taking into account the combined effects of link speeds, link latencies, system size, message size and network topologies feasible with current implementation capabilities.<<ETX>>","PeriodicalId":254893,"journal":{"name":"First International Workshop on Massively Parallel Processing Using Optical Interconnections","volume":"69 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127247494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Order statistics on optically interconnected multiprocessor systems","authors":"Y. Pan","doi":"10.1109/MPPOI.1994.336629","DOIUrl":"https://doi.org/10.1109/MPPOI.1994.336629","url":null,"abstract":"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 parallel algorithms on the same model. Time analysis indicates that order statistics can be done more efficiently on a linear array with a pipelined optical bus than that with an electronic bus. The initial result is promising, and the author believes that optical buses may emerge as a powerful communication mechanism for connecting large parallel computer systems in the near future.<<ETX>>","PeriodicalId":254893,"journal":{"name":"First International Workshop on Massively Parallel Processing Using Optical Interconnections","volume":"91 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127599786","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
E. Schenfeld, J. Reif, S. Lee, A. Gottlieb, K. Kasahara, J. Neff, J.R. Moulic
{"title":"Optical, processing-less massively parallel processing interconnection networks","authors":"E. Schenfeld, J. Reif, S. Lee, A. Gottlieb, K. Kasahara, J. Neff, J.R. Moulic","doi":"10.1109/MPPOI.1994.336613","DOIUrl":"https://doi.org/10.1109/MPPOI.1994.336613","url":null,"abstract":"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 to permit using processing-less optical communication? What are the devices issues that need to be addressed? What opto-electronic devices can be used? What is the expected performance of such devices (density, bandwidth)? What are the connection needs to the electronic processing elements? What are the aspects of packaging? Will a distributed layout be better than a centralized one (i.e., using one central device vs. multiple devices)? How will such a reconfigurable system be used in a real environment (multi-users, partitioning of jobs, distribution of global data)? What applications can benefit from such an architecture and how general purpose can it be (business applications: databases, transaction processing; scientific applications; engineering applications; future applications)?.<<ETX>>","PeriodicalId":254893,"journal":{"name":"First International Workshop on Massively Parallel Processing Using Optical Interconnections","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131649566","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Reconfigurable multiple-behavioural architecture using free-space optical communication","authors":"Tut San Guan, S. Barros","doi":"10.1109/MPPOI.1994.336615","DOIUrl":"https://doi.org/10.1109/MPPOI.1994.336615","url":null,"abstract":"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 users to configure both the topology and behaviour of the architecture are described. The resulting configurations faithfully reproduce the target architectures, including dataflow, pipelining, neural network, SIMD and MIMD. The use of optics also alleviates many communication bottlenecks usually associated with conventional computers. The architecture is proposed as the basis for a new kind of general/all purpose parallel computers.<<ETX>>","PeriodicalId":254893,"journal":{"name":"First International Workshop on Massively Parallel Processing Using Optical Interconnections","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134245435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hybrid multiprocessing using WDM optical fiber interconnections","authors":"K. Ghose, R. K. Horsell, Nitin K. Singhvi","doi":"10.1109/MPPOI.1994.336627","DOIUrl":"https://doi.org/10.1109/MPPOI.1994.336627","url":null,"abstract":"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 involved in the design of such a WDM fiber bus and briefly mention approaches for cutting down on the cost of the optonic interface components. Our results seem to indicate that efficient performance in the shared and distributed memory modes of operation stems from the operational concurrency of the WDM channels and the high data rate and low latency possible from the use of the new fiber channel optical receivers and transmitters.<<ETX>>","PeriodicalId":254893,"journal":{"name":"First International Workshop on Massively Parallel Processing Using Optical Interconnections","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133117323","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Parallel optoelectronic multiplexer architectures","authors":"C. Stirk","doi":"10.1109/MPPOI.1994.336620","DOIUrl":"https://doi.org/10.1109/MPPOI.1994.336620","url":null,"abstract":"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 latency can be hidden with the proper choice of multiplexer architecture and optoelectronic technology.<<ETX>>","PeriodicalId":254893,"journal":{"name":"First International Workshop on Massively Parallel Processing Using Optical Interconnections","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132657861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Demonstration of all-optical self-clocked demultiplexing of TDM data at 250 Gb/s","authors":"P. Prucnal, I. Glesk, J. P. Sokoloff","doi":"10.1109/MPPOI.1994.336634","DOIUrl":"https://doi.org/10.1109/MPPOI.1994.336634","url":null,"abstract":"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/sup /spl minus/9/ with strong jitter immunity.<<ETX>>","PeriodicalId":254893,"journal":{"name":"First International Workshop on Massively Parallel Processing Using Optical Interconnections","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1994-04-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132457021","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}