FPI —  Poster in Pills   (17-Oct-14   12:30—12:45)
Chair: P. Duval, DESY, Hamburg, Germany
Paper Title Page
FPI01
InfiniBand interconnects for high-throughput data acquisition in a TANGO environment  
FPO001   use link to access more material from this paper's primary paper code  
 
  • T. Dritschler, S.A. Chilingaryan, T. Faragó, A. Kopmann, M. Vogelgesang
    KIT, Eggenstein-Leopoldshafen, Germany
 
  Advances in computational performance allow for fast image-based control. To realize efficient control loops in a distributed experiment setup, large amounts of data need to be transferred, requiring high-throughput networks with low latencies. In the European synchrotron community, TANGO has become one of the prevalent tools to remotely control hardware and processes. In order to improve the data bandwidth and latency in a TANGO network, we realized a secondary data channel based on native InfiniBand communication. This data channel is implemented as part of a TANGO device and by itself is independent of the main TANGO network communication. TANGO mechanisms are used for configuration, thus the data channel can be used by any TANGO-based software that implements the corresponding interfaces. First results show that we can achieve a maximum bandwidth of 30 Gb/s which is close to the theoretical maximum of 32 Gb/s, possible with our 4xQDR InfiniBand test network, with average latencies as low as 6 μs. This means that we are able to surpass the limitations of standard TCP/IP networks while retaining the TANGO control schemes, enabling high data throughput in a TANGO environment.  
slides icon Slides FPI01 [0.511 MB]  
 
FPI02
Picosecond Sampling Electronics for Terahertz Synchrotron Radiation  
FPO002   use link to access more material from this paper's primary paper code  
 
  • C.M. Caselle, B.M. Balzer, M. Brosi, S.A. Chilingaryan, T. Dritschler, V. Judin, A. Kopmann, A.-S. Müller, L. Petzold, J. Raasch, L. Rota, M. Siegel, N.J. Smale, J.L. Steinmann, M. Vogelgesang, M. Weber, S. Wuensch
    KIT, Eggenstein-Leopoldshafen, Germany
 
  To study the synchrotron terahertz emission superconducting (YBCO) film detectors are used with the intrinsic response time in the order of a few picoseconds. For fast, continuous sampling of the individual THz ultra-short pulses a novel digitizer system has been developed. The system consists of detector, wideband low-noise amplifier, fast pulse digitizer board, back-end readout board. High-end graphic processing units (GPUs) perform real-time data analysis. Four samples with 12 bit are recorded in parallel for each fast pulse with programmable sampling times in the range of 3 to 100 ps. A new bus master DMA engine connected to PCI express endpoint has been developed to ensure a continuous high data throughput of up to 4 GByte/s. This heterogeneous real-time system architecture based on FPGA and GPU has successful been used for on-line pulse reconstruction and evaluations and calculates the peak amplitude of each pulse and the time between consecutive bunches with a picosecond time resolution at ANKA. A Fast Fourier Transform (FFT) is performed on-line for the frequency analysis of the CSR undulations.  
slides icon Slides FPI02 [1.153 MB]  
 
FPI03
New developments on the FAIR Data Master  
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  • M. Kreider, J. Davies, V. Grout
    Glyndŵr University, Wrexham, United Kingdom
  • R. Bär, D.H. Beck, M. Kreider, W.W. Terpstra
    GSI, Darmstadt, Germany
 
  During the last year, a small scale timing system has been built with a first version of the Data Master. In this paper, we will describe field test progress as well as new design concepts and implementation details of the new prototype to be tested with the CRYRING accelerator timing system. The message management layer has been introduced as a hardware acceleration module for the timely dispatch of control messages. It consists of a priority queue for outgoing messages, combined with a scheduler and network load balancing. This loosens the real-time constraints for the CPUs composing the control messages noticeably, making the control firmware very easy to construct and deterministic. It is further opening perspectives away from the current virtual machine-like implementation on to a specialized programming language for accelerator control. In addition, a streamlined and better fitting model for beam production chains and cycles has been devised for use in the data master firmware. The processing worst case execution time becomes completely calculable, enabling fixed time-slices for safe multiplexing of cycles in all of the CPUs.  
slides icon Slides FPI03 [0.890 MB]  
 
FPI04
Web Based Machine Status Display for the Siam Photon Source  
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  • N. Suradet, Ch. Dhammatong, S. Klinkhieo, P. Klysubun, C.P. Preecha
    SLRI, Nakhon Ratchasima, Thailand
 
  A new machine operation status broadcasting system has been developed for Siam Photon Source (SPS), a 1.2 GeV synchrotron light source in Thailand. The system is implemented using web-based interface, and broadcasts the information over the SPS website, mobile application, as well as local TV network within the SPS facility, allowing users as well as technical personnel to easily access a variety of information related to the machine via web browsers and other mediums. The new system also provides supporting message services for alarm, event notification, and other operational necessities. In this report, the design of web and mobile applications, which are based on HTML5, CSS3, and adopts PHP, AJAX, Bootstrap framework (for responsive design), jQuery, High charts JS, Twitter widget, and others, will be described. The details of the hardware and software configurations, users requirements and satisfactions, as well as suggestions on further improvements, will be presented.  
slides icon Slides FPI04 [1.338 MB]  
 
FPI05
Control System Software Environment and Integration for the TPS  
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  • Y.-S. Cheng, J. Chen, P.C. Chiu, K.T. Hsu, C.H. Huang, C.H. Kuo, C.Y. Liao, C.Y. Wu
    NSRRC, Hsinchu, Taiwan
 
  The TPS (Taiwan Photon Source) is the latest generation 3 GeV synchrotron light source, and the commissioning starts from third quarter of 2014. The EPICS is adopted as control system framework for the TPS. The various EPICS IOCs have implemented for each subsystem. The control system software environment has been established and integrated specifically for the TPS commissioning. The various purposed operation interfaces have been created and mainly include the function of setting, reading, save, restore and etc. The database related applications have been built, and the applications include archive system, alarm system, logbook, Web and etc. The high level applications which are depended upon properties of each subsystem have been developed and are in test phase. The efforts will be summarized at this report.  
slides icon Slides FPI05 [1.533 MB]