Abstract
Wide-area data transfer is central to geographically distributed scientific workflows. Faster delivery of data is important for these workflows. Predictability is equally (or even more) important. With the goal of providing a reasonably accurate estimate of data transfer time to improve resource allocation & scheduling for workflows and enable end-to-end data transfer optimization, we apply machine learning methods to develop predictive models for data transfer times over a variety of wide area networks. To build and evaluate these models, we use 201,388 transfers, involving 759 million files totaling 9 PB transferred, over 115 heavily used source-destination pairs (“edges”) between 135 unique endpoints. We evaluate the models for different retraining frequencies and different window size of history data. In the best case, the resulting models have a median prediction error of ≤21% for 50% of the edges, and ≤32% for 75% of the edges. We present a detailed analysis of these results that provides insights into the cause of some of the high errors. We envision that the performance predictor will be informative for scheduling geo-distributed workflows. The insights also suggest obvious directions for both further analysis and transfer service optimization.
Original language | English |
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Title of host publication | Machine Learning for Networking - 1st International Conference, MLN 2018, Revised Selected Papers |
Editors | Paul Mühlethaler, Selma Boumerdassi, Éric Renault |
Publisher | Springer Verlag |
Pages | 56-78 |
Number of pages | 23 |
ISBN (Print) | 9783030199449 |
DOIs | |
State | Published - 2019 |
Event | 1st International Conference on Machine Learning for Networking, MLN 2018 - Paris, France Duration: Nov 27 2018 → Nov 29 2018 |
Publication series
Name | Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics) |
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Volume | 11407 LNCS |
ISSN (Print) | 0302-9743 |
ISSN (Electronic) | 1611-3349 |
Conference
Conference | 1st International Conference on Machine Learning for Networking, MLN 2018 |
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Country/Territory | France |
City | Paris |
Period | 11/27/18 → 11/29/18 |
Funding
Acknowledgments. This material is based upon work supported by the U.S. Department of Energy, Office of Science, under contract DE-AC02-06CH11357. We gratefully acknowledge the computing resources provided and operated by the Joint Laboratory for System Evaluation (JLSE) at Argonne National Laboratory.