Proceedings of the 18th International Workshop on Data Management on New Hardware最新文献

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Performant Almost-Latch-Free Data Structures Using Epoch Protection 使用Epoch保护的性能几乎无锁存的数据结构
Tianyu Li, B. Chandramouli, S. Madden
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引用次数: 2
To use or not to use the SIMD gather instruction? 使用或不使用SIMD收集指令?
Dirk Habich, Johannes Pietrzyk, Alexander Krause, Juliana Hildebrandt, Wolfgang Lehner
{"title":"To use or not to use the SIMD gather instruction?","authors":"Dirk Habich, Johannes Pietrzyk, Alexander Krause, Juliana Hildebrandt, Wolfgang Lehner","doi":"10.1145/3533737.3535089","DOIUrl":"https://doi.org/10.1145/3533737.3535089","url":null,"abstract":"The Single Instruction Multiple Data (SIMD) paradigm became a core principle for optimizing query operators. Until now, only the LOAD/STORE instructions are considered to be efficient enough to achieve the expected speedups, while avoiding GATHER/SCATTER is considered almost imperative. However, the GATHER instruction offers a very flexible way to populate SIMD registers with data elements coming from non-consecutive memory locations. As we will show within the paper, the GATHER instruction can achieve the same performance as the LOAD instruction, if applied properly. To enable the proper usage, we outline a novel access pattern which then allows fine-grained, partition-based SIMD implementations using the GATHER instruction.","PeriodicalId":381503,"journal":{"name":"Proceedings of the 18th International Workshop on Data Management on New Hardware","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121625047","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: 3
Proceedings of the 18th International Workshop on Data Management on New Hardware 第18届新硬件数据管理国际研讨会论文集
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引用次数: 0
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