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Error-bounded lossy compression has been identified as a promising solution for significantly reducing scientific data volumes upon users' requirements on data distortion. For the existing scientific error-bounded lossy compressors, some of…

分布式、并行与集群计算 · 计算机科学 2024-09-26 Jinyang Liu , Sheng Di , Kai Zhao , Xin Liang , Sian Jin , Zizhe Jian , Jiajun Huang , Shixun Wu , Zizhong Chen , Franck Cappello

X3 is a lossless optimizing dictionary-based data compressor. The algorithm uses a combination of a dictionary, context modeling, and arithmetic coding. Optimization adds the ability to find the most appropriate parameters for each file.…

信息论 · 计算机科学 2022-01-06 David Barina

Data compression plays a key role in reducing storage and I/O costs. Traditional lossy methods primarily target data on rectilinear grids and cannot leverage the spatial coherence in unstructured mesh data, leading to suboptimal compression…

Because of vast volume of data being produced by today's scientific simulations and experiments, lossy data compressor allowing user-controlled loss of accuracy during the compression is a relevant solution for significantly reducing the…

其他计算机科学 · 计算机科学 2017-11-15 Dingwen Tao , Sheng Di , Hanqi Guo , Zizhong Chen , Franck Cappello

With ever-increasing volumes of scientific floating-point data being produced by high-performance computing applications, significantly reducing scientific floating-point data size is critical, and error-controlled lossy compressors have…

分布式、并行与集群计算 · 计算机科学 2020-01-20 Robert Underwood , Sheng Di , Jon C. Calhoun , Franck Cappello

The fast growth of computational power and scales of modern super-computing systems have raised great challenges for the management of exascale scientific data. To maintain the usability of scientific data, error-bound lossy compression is…

机器学习 · 计算机科学 2023-11-08 Jinyang Liu , Sheng Di , Sian Jin , Kai Zhao , Xin Liang , Zizhong Chen , Franck Cappello

Weather and climate simulations produce petabytes of high-resolution data that are later analyzed by researchers in order to understand climate change or severe weather. We propose a new method of compressing this multidimensional weather…

机器学习 · 计算机科学 2023-04-17 Langwen Huang , Torsten Hoefler

Increasing data volumes from scientific simulations and instruments (supercomputers, accelerators, telescopes) often exceed network, storage, and analysis capabilities. The scientific community's response to this challenge is scientific…

Error-controlled lossy compression has been studied for years because of extremely large volumes of data being produced by today's scientific simulations. None of existing lossy compressors, however, allow users to fix the peak…

信息论 · 计算机科学 2018-07-17 Dingwen Tao , Sheng Di , Xin Liang , Zizhong Chen , Franck Cappello

Error-bounded lossy compression is a critical technique for significantly reducing scientific data volumes. With ever-emerging heterogeneous high-performance computing (HPC) architecture, GPU-accelerated error-bounded compressors (such as…

分布式、并行与集群计算 · 计算机科学 2021-09-07 Jiannan Tian , Sheng Di , Xiaodong Yu , Cody Rivera , Kai Zhao , Sian Jin , Yunhe Feng , Xin Liang , Dingwen Tao , Franck Cappello

This paper presents error-bounded lossy compression tailored for particle datasets from diverse scientific applications in cosmology, fluid dynamics, and fusion energy sciences. As today's high-performance computing capabilities advance,…

信息论 · 计算机科学 2024-04-05 Congrong Ren , Sheng Di , Longtao Zhang , Kai Zhao , Hanqi Guo

In situ lossy compression allowing user-controlled data loss can significantly reduce the I/O burden. For large-scale N-body simulations where only one snapshot can be compressed at a time, the lossy compression ratio is very limited…

分布式、并行与集群计算 · 计算机科学 2017-11-13 Dingwen Tao , Sheng Di , Zizhong Chen , Franck Cappello

Today's scientific simulations, for example in the high-performance exascale sector, produce huge amounts of data. Due to limited I/O bandwidth and available storage space, there is the necessity to reduce scientific data of high…

分布式、并行与集群计算 · 计算机科学 2024-07-25 N. Böing , J. Holke , C. Hergl , L. Spataro , G. Gassner , A. Basermann

Today's scientific simulations require a significant reduction of data volume because of extremely large amounts of data they produce and the limited I/O bandwidth and storage space. Error-bounded lossy compression has been considered one…

分布式、并行与集群计算 · 计算机科学 2022-05-09 Daoce Wang , Jesus Pulido , Pascal Grosset , Sian Jin , Jiannan Tian , James Ahrens , Dingwen Tao

The rapid growth of high-resolution scientific simulations and observation systems is generating massive spatiotemporal datasets, making efficient, error-bounded compression increasingly important. Meanwhile, decoder-only large language…

机器学习 · 计算机科学 2025-11-06 Guozhong Li , Muhannad Alhumaidi , Spiros Skiadopoulos , Panos Kalnis

Error-bounded lossy compression is a critical technique for significantly reducing scientific data volumes. Compared to CPU-based compressors, GPU-based compressors exhibit substantially higher throughputs, fitting better for today's HPC…

分布式、并行与集群计算 · 计算机科学 2024-10-02 Jinyang Liu , Jiannan Tian , Shixun Wu , Sheng Di , Boyuan Zhang , Robert Underwood , Yafan Huang , Jiajun Huang , Kai Zhao , Guanpeng Li , Dingwen Tao , Zizhong Chen , Franck Cappello

With the promise of federated learning (FL) to allow for geographically-distributed and highly personalized services, the efficient exchange of model updates between clients and servers becomes crucial. FL, though decentralized, often faces…

分布式、并行与集群计算 · 计算机科学 2024-04-25 Grant Wilkins , Sheng Di , Jon C. Calhoun , Zilinghan Li , Kibaek Kim , Robert Underwood , Richard Mortier , Franck Cappello

Today's scientific simulations require significant data volume reduction because of the enormous amounts of data produced and the limited I/O bandwidth and storage space. Error-bounded lossy compression has been considered one of the most…

分布式、并行与集群计算 · 计算机科学 2023-12-07 Daoce Wang , Jesus Pulido , Pascal Grosset , Sian Jin , Jiannan Tian , Kai Zhao , James Ahrens , Dingwen Tao

The escalating surge in data generation presents formidable challenges to information technology, necessitating advancements in storage, retrieval, and utilization. With the proliferation of artificial intelligence and big data, the "Data…

分布式、并行与集群计算 · 计算机科学 2023-09-19 Xinzhe Chen , Jianjiang Li

We consider lossless compression based on statistical data modeling followed by prediction-based encoding, where an accurate statistical model for the input data leads to substantial improvements in compression. We propose DZip, a…

机器学习 · 计算机科学 2020-09-21 Mohit Goyal , Kedar Tatwawadi , Shubham Chandak , Idoia Ochoa