@inproceedings{6f0663d25b4d4cd98df3dcfb8ee062d7,
title = "ISOBAR hybrid compression-I/O interleaving for large-scale parallel I/O optimization",
abstract = "Current peta-scale data analytics frameworks suffer from a significant performance bottleneck due to an imbalance between their enormous computational power and limited I/O bandwidth. Using data compression schemes to reduce the amount of I/O activity is a promising approach to addressing this problem. In this paper, we propose a hybrid framework for interleaving I/O with data compression to achieve improved I/O throughput side-by-side with reduced dataset size. We evaluate several interleaving strategies, present theoretical models, and evaluate the efficiency and scalability of our approach through comparative analysis. With our theoretical model, considering 19 real-world scientific datasets both from the public domain and peta-scale simulations, we estimate that the hybrid method can result in a 12 to 46\% increase in throughput on hard-to-compress scientific datasets. At the reported peak bandwidth of 60 GB/s of uncompressed data for a current, leadership-class parallel I/O system, this translates into an effective gain of 7 to 28 GB/s in aggregate throughput.",
keywords = "High Performance Computing, Hybrid Interleaving, I/O, ISOBAR, Lossless Compression, Staging",
author = "Schendel, \{Eric R.\} and Pendse, \{Saurabh V.\} and John Jenkins and Boyuka, \{David A.\} and Zhenhuan Gong and Sriram Lakshminarasimhan and Qing Liu and Hemanth Kolla and Jackie Chen and Scott Klasky and Robert Ross and Samatova, \{Nagiza F.\}",
year = "2012",
doi = "10.1145/2287076.2287086",
language = "English (US)",
isbn = "9781450308052",
series = "HPDC '12 - Proceedings of the 21st ACM Symposium on High-Performance Parallel and Distributed Computing",
pages = "61--72",
booktitle = "HPDC '12 - Proceedings of the 21st ACM Symposium on High-Performance Parallel and Distributed Computing",
note = "21st ACM Symposium on High-Performance Parallel and Distributed Computing, HPDC '12 ; Conference date: 18-06-2012 Through 22-06-2012",
}