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arXiv 1708.00720astro-ph.IMcs.DCphysics.ins-det
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Bifrost:一个天文学中高吞吐量流处理的Python/C++框架

Bifrost: a Python/C++ Framework for High-Throughput Stream Processing in Astronomy

Miles D. Cranmer, Benjamin R. Barsdell, Danny C. Price, Jayce Dowell, Hugh Garsden, Veronica Dike, Tarraneh Eftekhari, Alexander M. Hegedus, Joseph Malins, Kenn… 展开作者

Miles D. Cranmer, Benjamin R. Barsdell, Danny C. Price, Jayce Dowell, Hugh Garsden, Veronica Dike, Tarraneh Eftekhari, Alexander M. Hegedus, Joseph Malins, Kenneth S. Obenberger, Frank Schinzel, Kevin Stovall, Gregory B. Taylor, Lincoln J. Greenhill

摘要:

具有高吞吐量后端仪器的射电天文观测站需要实时数据处理。虽然计算硬件继续快速发展,但实时处理管道的开发仍然困难且耗时,这可能会限制科学生产力。受此启发,我们开发了Bifrost:一个用于快速管道开发的开源软件框架。Bifrost将高级Python接口与高效的可重新配置数据传输以及用于CPU和GPU处理的计算块库相结合。该框架是可推广的,但最初它强调高吞吐量射电天文管道的需求,例如处理数据缓冲区的能力,就好像它们是连续流一样,将处理划分为不同数据序列的能力(例如,单独的观察),以及从缓冲数据中提取特定间隔的能力。库中的计算模块专为干涉测量、脉冲星解色散和定时以及瞬态搜索管道等应用而设计。我们描述的设计和实施的彩虹桥框架,并证明其使用的骨干在塞维利亚国家野生动物保护区,NM的长波长阵列站的相关性和波束成形后端。

英文摘要:

Radio astronomy observatories with high throughput back end instruments require real-time data processing. While computing hardware continues to advance rapidly, development of real-time processing pipelines remains difficult and time-consuming, which can limit scientific productivity. Motivated by this, we have developed Bifrost: an open-source software framework for rapid pipeline development. Bifrost combines a high-level Python interface with highly efficient reconfigurable data transport and a library of computing blocks for CPU and GPU processing. The framework is generalizable, but initially it emphasizes the needs of high-throughput radio astronomy pipelines, such as the ability to process data buffers as if they were continuous streams, the capacity to partition processing into distinct data sequences (e.g., separate observations), and the ability to extract specific intervals from buffered data. Computing blocks in the library are designed for applications such as interferometry, pulsar dedispersion and timing, and transient search pipelines. We describe the design and implementation of the Bifrost framework and demonstrate its use as the backbone in the correlation and beamforming back end of the Long Wavelength Array station in the Sevilleta National Wildlife Refuge, NM.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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