ACM SIGPLAN Symposium on Scala最新文献

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Investigating scaling behaviour of monte carlo codes for dense matrix inversion 研究密集矩阵反演蒙特卡罗代码的标度行为
ACM SIGPLAN Symposium on Scala Pub Date : 2011-11-14 DOI: 10.1145/2133173.2133187
J. Strassburg, V. Alexandrov
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引用次数: 1
Implementing a gaussian process learning algorithm in mixed parallel environment 混合并行环境下高斯过程学习算法的实现
ACM SIGPLAN Symposium on Scala Pub Date : 2011-11-14 DOI: 10.1145/2133173.2133176
V. Chandola, Ranga Raju Vatsavai
{"title":"Implementing a gaussian process learning algorithm in mixed parallel environment","authors":"V. Chandola, Ranga Raju Vatsavai","doi":"10.1145/2133173.2133176","DOIUrl":"https://doi.org/10.1145/2133173.2133176","url":null,"abstract":"In this paper, we present a scalability analysis of a parallel Gaussian process training algorithm to simultaneously analyze a massive number of time series. We study three different parallel implementations: using threads, MPI, and a hybrid implementation using threads and MPI. We compare the scalability for the multi-threaded implementation on three different hardware platforms: a Mac desktop with two quad-core Intel Xeon processors (16 virtual cores), a Linux cluster node with four quad-core 2.3 GHz AMD Opteron processors, and SGI Altix ICE 8200 cluster node with two quad-core Intel Xeon processors (16 virtual cores). We also study the scalability of the MPI based and the hybrid MPI and thread based implementations on the SGI cluster with 128 nodes (2048 cores). Experimental results show that the hybrid implementation scales better than the multi-threaded and MPI based implementations. The application of the proposed algorithm is demonstrated in analyzing massive remote sensing observation data. The hybrid implementation, using 1536 cores, can analyze a data set with over 4 million time series in nearly 5 seconds while the serial algorithm takes nearly 12 hours to process the same data set.","PeriodicalId":259517,"journal":{"name":"ACM SIGPLAN Symposium on Scala","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-11-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133584637","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: 2
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