Nothing Special   »   [go: up one dir, main page]

JACoW logo

Journals of Accelerator Conferences Website (JACoW)

'Journal of Accelerator Conferences Website' (JACoW) is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.


https://doi.org/10.18429/JACoW-ICALEPCS2021-MOPV044
Title Lessons Learned Moving from Pharlap to Linux RT
Authors
  • C. Charrondière, O.Ø. Andreassen, D. Sierra-Maíllo Martínez, J. Tagg, T. Zilliox
    CERN, Meyrin, Switzerland
Abstract The start of the Advanced Proton Driven Plasma Wakefield Acceleration Experiment (AWAKE) facility at CERN in 2016 came with the need for a continuous image acquisition system. The international scientific collaboration responsible for this project requested low and high resolution acquisition at a capture rate of 10Hz and 1 Hz respectively. To match these requirements, GigE digital cameras were connected to a PXI system running PharLap, a real-time operating system, using dual port 1GB/s network cards. With new requirements for a faster acquisition with higher resolution, it was decided to add 10GB/s network cards and a Network Attached Storage (NAS) directly connected to the PXI system to avoid saturating the network. There was also a request to acquire high-resolution images on several cameras during a limited duration, typically 30 seconds, in a burst acquisition mode. To comply with these new requirements PharLap had to be abandoned and replaced with Linux RT. This paper describes the limitation of the PharLap system and the lessons learned during the transition to Linux RT. We will show the improvement of CPU stability and data throughput reached.
Paper download MOPV044.PDF [0.958 MB / 4 pages]
Poster download MOPV044_POSTER.PDF [0.525 MB]
Cite download ※ BibTeX LaTeXText/WordRISEndNote
Conference ICALEPCS2021
Series International Conference on Accelerator and Large Experimental Physics Control Systems (18th)
Location Shanghai, China
Date 14-22 October 2021
Publisher JACoW Publishing, Geneva, Switzerland
Editorial Board Kazuro Furukawa (KEK, Tsukuba, Japan); Yingbing Yan (SARI,Shanghai, China); Yongbin Leng (SARI,Shanghai, China); Zhichu Chen (SARI,Shanghai, China); Volker RW Schaa (GSI, Darmstadt, Germany)
Online ISBN 978-3-95450-221-9
Online ISSN 2226-0358
Received 08 October 2021
Revised 18 October 2021
Accepted 20 November 2021
Issue Date 04 January 2022
DOI doi:10.18429/JACoW-ICALEPCS2021-MOPV044
Pages 257-260
Copyright
Creative Commons CC logoPublished by JACoW Publishing under the terms of the Creative Commons Attribution 3.0 International license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI.