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Proceedings of the 10th International Workshop on Programming Models and Applications for Multicores and Manycores - PMAM'19最新文献

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Brie 布里干酪
Proceedings of the 10th International Workshop on Programming Models and Applications for Multicores and Manycores - PMAM'19 Pub Date : 1900-01-01 DOI: 10.1145/3303084.3309490
Herbert Jordan, Pavle Subotic, David Zhao, B. Scholz
{"title":"Brie","authors":"Herbert Jordan, Pavle Subotic, David Zhao, B. Scholz","doi":"10.1145/3303084.3309490","DOIUrl":"https://doi.org/10.1145/3303084.3309490","url":null,"abstract":"Modern Datalog engines are employed in industrial applications such as graph databases, networks, and static program analysis. To cope with the vast amount of data in these applications, Datalog engines must employ specialized parallel data structures. In this paper, we introduce the Brie, a specialized data structure for high-density relations storing large data volumes. It effectively compresses dense data in a lock-free fashion and obtains up to 15× higher performance in parallel insertion benchmarks compared to state-of-the-art alternatives. Furthermore, when integrated into a Datalog engine running an industrial points-to analysis, runtime improves by a factor of 4× with a compression ratio of up to 3.6× are obtained.","PeriodicalId":198627,"journal":{"name":"Proceedings of the 10th International Workshop on Programming Models and Applications for Multicores and Manycores - PMAM'19","volume":"225 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113966854","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}
引用次数: 14
libMPNode libMPNode
Proceedings of the 10th International Workshop on Programming Models and Applications for Multicores and Manycores - PMAM'19 Pub Date : 1900-01-01 DOI: 10.1145/3303084.3309495
Robert Lyerly, Sang-Hoon Kim, B. Ravindran
{"title":"libMPNode","authors":"Robert Lyerly, Sang-Hoon Kim, B. Ravindran","doi":"10.1145/3303084.3309495","DOIUrl":"https://doi.org/10.1145/3303084.3309495","url":null,"abstract":"In this work we describe libMPNode, an OpenMP runtime designed for efficient multithreaded execution across systems composed of multiple non-cache-coherent domains. Rather than requiring extensive compiler-level transformations or building new programming model abstractions, libMPNode builds on recent works that allow developers to use a traditional shared-memory programming model to build applications that are migratable between incoherent domains. libMPNode handles migrating threads between domains, or nodes, and optimizes many OpenMP mechanisms to reduce cross-node communication. While applications may not scale as written, we describe early experiences in simple code refactoring techniques that help scale performance by only changing a handful of lines of code. We describe and evaluate the current implementation, report on experiences using the runtime, and describe future research directions for multi-domain OpenMP.","PeriodicalId":198627,"journal":{"name":"Proceedings of the 10th International Workshop on Programming Models and Applications for Multicores and Manycores - PMAM'19","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120906432","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}
引用次数: 6
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