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dc.contributor.authorScogland, Thomas R. W.en
dc.contributor.authorFeng, Wu-chunen
dc.date.accessioned2014-08-06T16:28:47Zen
dc.date.available2014-08-06T16:28:47Zen
dc.date.issued2014-08-06en
dc.identifier.urihttp://hdl.handle.net/10919/49700en
dc.description.abstractAs core counts increase and as heterogeneity becomes more common in parallel computing, we face the prospect of pro gramming hundreds or even thousands of concurrent threads in a single shared-memory system. At these scales, even highly-efficient concurrent algorithms and data structures can become bottlenecks, unless they are designed from the ground up with throughput as their primary goal. In this paper, we present three contributions: (1) a characterization of queue designs in terms of modern multi- and many-core architectures, (2) the design of a high-throughput concurrent FIFO queue for many-core architectures that avoids the bottlenecks common in modern queue designs, and (3) a thorough evaluation of concurrent queue throughput across CPU, GPU, and co-processor devices. Our evaluation shows that focusing on throughput, rather than progress guarantees, allows our queue to scale to as much as three orders of magnitude (1000X) faster than lock-free and combining queues on GPU platforms and two times (2X) faster on CPU devices. These results deliver critical insight into the design of data structures for highly concurrent systems: (1) progress guarantees do not guarantee scalability, and (2) allowing an algorithm to block can actually increase throughput.en
dc.language.isoen_USen
dc.publisherDepartment of Computer Science, Virginia Polytechnic Institute & State Universityen
dc.relation.ispartofComputer Science Technical Reportsen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectAlgorithmsen
dc.subjectComputer systemsen
dc.subjectHigh performance computingen
dc.subjectParallel and distributed computingen
dc.titleDesign and Evaluation of Scalable Concurrent Queues for Many-Core Architecturesen
dc.typeTechnical reporten
dc.contributor.departmentComputer Scienceen
dc.identifier.trnumberTR-14-03en
dc.type.dcmitypeTexten


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