{"title":"基于间隔的I/O:一种提供高性能并行I/O的新方法","authors":"Jeremy S. Logan, P. Dickens","doi":"10.1109/ICPPW.2011.45","DOIUrl":null,"url":null,"abstract":"Providing scalable, high-performance parallel I/O for data-intensive computations is beset by a number of difficult challenges. The most often cited difficulties include the non-contiguous I/O patterns prominent in scientific codes, the lack of support for parallel I/O optimizations in POSIX, the high cost of providing strict file consistency semantics, and the cost of accessing storage devices over a network. We believe, however, that a more fundamental problem is the legacy view of a file as a linear sequence of bytes. To address this issue, we are developing a new approach to parallel I/O that is based on what we term intervals and interval files. This paper provides an overview of the interval-IO system and a set of benchmarks demonstrating the power of this new approach.","PeriodicalId":173271,"journal":{"name":"2011 40th International Conference on Parallel Processing Workshops","volume":"1 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2011-09-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Interval Based I/O: A New Approach to Providing High Performance Parallel I/O\",\"authors\":\"Jeremy S. Logan, P. Dickens\",\"doi\":\"10.1109/ICPPW.2011.45\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Providing scalable, high-performance parallel I/O for data-intensive computations is beset by a number of difficult challenges. The most often cited difficulties include the non-contiguous I/O patterns prominent in scientific codes, the lack of support for parallel I/O optimizations in POSIX, the high cost of providing strict file consistency semantics, and the cost of accessing storage devices over a network. We believe, however, that a more fundamental problem is the legacy view of a file as a linear sequence of bytes. To address this issue, we are developing a new approach to parallel I/O that is based on what we term intervals and interval files. This paper provides an overview of the interval-IO system and a set of benchmarks demonstrating the power of this new approach.\",\"PeriodicalId\":173271,\"journal\":{\"name\":\"2011 40th International Conference on Parallel Processing Workshops\",\"volume\":\"1 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-09-13\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2011 40th International Conference on Parallel Processing Workshops\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICPPW.2011.45\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 40th International Conference on Parallel Processing Workshops","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICPPW.2011.45","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Interval Based I/O: A New Approach to Providing High Performance Parallel I/O
Providing scalable, high-performance parallel I/O for data-intensive computations is beset by a number of difficult challenges. The most often cited difficulties include the non-contiguous I/O patterns prominent in scientific codes, the lack of support for parallel I/O optimizations in POSIX, the high cost of providing strict file consistency semantics, and the cost of accessing storage devices over a network. We believe, however, that a more fundamental problem is the legacy view of a file as a linear sequence of bytes. To address this issue, we are developing a new approach to parallel I/O that is based on what we term intervals and interval files. This paper provides an overview of the interval-IO system and a set of benchmarks demonstrating the power of this new approach.