{"title":"Parallel Algorithms for Sparse Matrix Multiplication and Join-Aggregate Queries","authors":"Xiao Hu, K. Yi","doi":"10.1145/3375395.3387657","DOIUrl":null,"url":null,"abstract":"In this paper, we design massively parallel algorithms for sparse matrix multiplication, as well as more general join-aggregate queries, where the join hypergraph is a tree with arbitrary output attributes. For each case, we obtain asymptotic improvement over existing algorithms. In particular, our matrix multiplication algorithm is shown to be optimal in the semiring model.","PeriodicalId":412441,"journal":{"name":"Proceedings of the 39th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2020-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings of the 39th ACM SIGMOD-SIGACT-SIGAI Symposium on Principles of Database Systems","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1145/3375395.3387657","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 2
Abstract
In this paper, we design massively parallel algorithms for sparse matrix multiplication, as well as more general join-aggregate queries, where the join hypergraph is a tree with arbitrary output attributes. For each case, we obtain asymptotic improvement over existing algorithms. In particular, our matrix multiplication algorithm is shown to be optimal in the semiring model.
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