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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Monti, H.M. Butt, A.R. Vazhkudai, S.S. |
| Copyright Year | 2010 |
| Description | Author affiliation: Dept. of Computer Science, Virginia Tech. Blacksburg, Virginia, USA (Monti, H.M.; Butt, A.R.) || Computer Science and Mathematics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee, USA (Vazhkudai, S.S.) |
| Abstract | Innovative scientific applications and emerging dense data sources are creating a data deluge for highend computing systems. Processing such large input data typically involves copying (or staging) onto the supercomputer's specialized high-speed storage, scratch space, for sustained high I/O throughput. The current practice of conservatively staging data as early as possible makes the data vulnerable to storage failures, which may entail re-staging and consequently reduced job throughput. To address this, we present a timely staging framework that uses a combination of job startup time predictions, user-specified intermediate nodes, and decentralized data delivery to coincide input data staging with job start-up. By delaying staging to when it is necessary, the exposure to failures and its effects can be reduced. Evaluation using both PlanetLab and simulations based on three years of Jaguar (No. 1 in Top500) job logs show as much as 85.9% reduction in staging times compared to direct transfers, 75.2% reduction in wait time on scratch, and 2.4% reduction in usage/hour. |
| Starting Page | 1 |
| Ending Page | 12 |
| File Size | 675870 |
| Page Count | 12 |
| File Format | |
| ISBN | 9781424464425 |
| ISSN | 15302075 |
| e-ISBN | 9781424464432 |
| DOI | 10.1109/IPDPS.2010.5470367 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2010-04-19 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Computer science Laboratories Throughput Supercomputers Large-scale systems Large Hadron Collider Mathematics Application software Delay effects Energy management end-user data delivery High performance data management data-staging HPC center serviceability |
| Content Type | Text |
| Resource Type | Article |
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