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Communication Dans Un Congrès Année : 2010

BatchQueue: Fast and Memory-thrifty Core to Core Communication

Résumé

Sequential applications can take advantage of multi-core systems by way of pipeline parallelism to improve their performance. In such parallelism, core to core communication overhead is the main limit of speedup. This paper presents BatchQueue, a fast and memory-thrifty core to core communication system based on batch processing of whole cache line. BatchQueue is able to send a 32bit word of data in just 12.5 ns on a Xeon X5472 and only needs 2 full cache lines plus 3 byte-sized variables -- each on a different cache line for optimal performance -- to work. The characteristics of BatchQueue -- high throughput and increased latency resulting from its batch processing -- makes it well suited for highly communicative tasks with no real time requirements such as monitoring.
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Dates et versions

hal-00627475 , version 1 (28-09-2011)

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Citer

Thomas Preud'Homme, Julien Sopena, Gaël Thomas, Bertil Folliot. BatchQueue: Fast and Memory-thrifty Core to Core Communication. 22nd International Symposium on Computer Architecture and High Performance Computing, SBAC-PAD 2010, Oct 2010, Petrópolis, Brazil. pp.215-222, ⟨10.1109/SBAC-PAD.2010.34⟩. ⟨hal-00627475⟩
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