{"title":"InfiniBand上Globus的高效零拷贝不连续I/O","authors":"Weikuan Yu, Yuan Tian, J. Vetter","doi":"10.1109/ICPPW.2010.56","DOIUrl":null,"url":null,"abstract":"Noncontiguous I/O access is one of the main access patterns in parallel and distributed applications. An I/O architecture EXIO enables Globus, a popular run-time environment for distributed computing, on RDMA networks such as InfiniBand. In this paper, we investigate the benefits of InfiniBand zero-copy RDMA to noncontiguous I/O on Globus. Our experimental results demonstrate that, by enabling zero-copy RDMA on InfiniBand, EXIO significantly improves the performance of Globus noncontiguous I/O. Compared to the packing and unpacking, zero-copy RDMA improve the bandwidth by up to 2.7 times. Compared to both IPoIB and 10GigE, it increases the bandwidth by more than three times. While achieving efficient noncontiguous I/O, RDMA-based noncontiguous I/O on InfiniBand also leads to dramatical reduction of CPU utilization on Globus clients and servers.","PeriodicalId":415472,"journal":{"name":"2010 39th International Conference on Parallel Processing Workshops","volume":"220 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2010-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"3","resultStr":"{\"title\":\"Efficient Zero-Copy Noncontiguous I/O for Globus on InfiniBand\",\"authors\":\"Weikuan Yu, Yuan Tian, J. Vetter\",\"doi\":\"10.1109/ICPPW.2010.56\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Noncontiguous I/O access is one of the main access patterns in parallel and distributed applications. An I/O architecture EXIO enables Globus, a popular run-time environment for distributed computing, on RDMA networks such as InfiniBand. In this paper, we investigate the benefits of InfiniBand zero-copy RDMA to noncontiguous I/O on Globus. Our experimental results demonstrate that, by enabling zero-copy RDMA on InfiniBand, EXIO significantly improves the performance of Globus noncontiguous I/O. Compared to the packing and unpacking, zero-copy RDMA improve the bandwidth by up to 2.7 times. Compared to both IPoIB and 10GigE, it increases the bandwidth by more than three times. While achieving efficient noncontiguous I/O, RDMA-based noncontiguous I/O on InfiniBand also leads to dramatical reduction of CPU utilization on Globus clients and servers.\",\"PeriodicalId\":415472,\"journal\":{\"name\":\"2010 39th International Conference on Parallel Processing Workshops\",\"volume\":\"220 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2010-09-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"3\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2010 39th International Conference on Parallel Processing Workshops\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICPPW.2010.56\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2010 39th International Conference on Parallel Processing Workshops","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICPPW.2010.56","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Efficient Zero-Copy Noncontiguous I/O for Globus on InfiniBand
Noncontiguous I/O access is one of the main access patterns in parallel and distributed applications. An I/O architecture EXIO enables Globus, a popular run-time environment for distributed computing, on RDMA networks such as InfiniBand. In this paper, we investigate the benefits of InfiniBand zero-copy RDMA to noncontiguous I/O on Globus. Our experimental results demonstrate that, by enabling zero-copy RDMA on InfiniBand, EXIO significantly improves the performance of Globus noncontiguous I/O. Compared to the packing and unpacking, zero-copy RDMA improve the bandwidth by up to 2.7 times. Compared to both IPoIB and 10GigE, it increases the bandwidth by more than three times. While achieving efficient noncontiguous I/O, RDMA-based noncontiguous I/O on InfiniBand also leads to dramatical reduction of CPU utilization on Globus clients and servers.
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