D. Levit;M. Bessner;D. Biswas;D. Charlet;T. Higuchi;R. Itoh;E. Jules;P. Kapusta;T. Kunigo;Y.-T. Lai;T. S. Lau;M. Nakao;K. Nishimura;S.-H. Park;E. Plaige;H. Purwar;P. Robbe;S. Y. Suzuki;M. Taurigna;G. Varner;S. Yamada;Q.-D. Zhou
{"title":"Software-Assisted Event Builder for Belle II Experiment","authors":"D. Levit;M. Bessner;D. Biswas;D. Charlet;T. Higuchi;R. Itoh;E. Jules;P. Kapusta;T. Kunigo;Y.-T. Lai;T. S. Lau;M. Nakao;K. Nishimura;S.-H. Park;E. Plaige;H. Purwar;P. Robbe;S. Y. Suzuki;M. Taurigna;G. Varner;S. Yamada;Q.-D. Zhou","doi":"10.1109/TNS.2024.3462595","DOIUrl":null,"url":null,"abstract":"In this article, we present the design of the hybrid event builder algorithm for Belle II DAQ. The event builder is implemented in PCIe40 field-programmable gate array (FPGA) boards and reads up to 48 127 MB/s channels per board. The first version of the event builder implemented the algorithm entirely in the firmware of the FPGA. But due to limited onboard memories, there are hard limitations on the operation conditions. The new algorithm uses independent event processing for each channel in FPGA and a highly optimized readout software for final event building. This allowed us to increase the throughput of the system from 600 MB/s to 7.25 GB/s on a readout computer with 20 CPU cores. We successfully use the system to take data at trigger rates of up to 5.5 kHz in run 2 of Belle II experiment since February 2024.","PeriodicalId":13406,"journal":{"name":"IEEE Transactions on Nuclear Science","volume":"72 3","pages":"287-294"},"PeriodicalIF":1.9000,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"IEEE Transactions on Nuclear Science","FirstCategoryId":"5","ListUrlMain":"https://ieeexplore.ieee.org/document/10681453/","RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENGINEERING, ELECTRICAL & ELECTRONIC","Score":null,"Total":0}
引用次数: 0
Abstract
In this article, we present the design of the hybrid event builder algorithm for Belle II DAQ. The event builder is implemented in PCIe40 field-programmable gate array (FPGA) boards and reads up to 48 127 MB/s channels per board. The first version of the event builder implemented the algorithm entirely in the firmware of the FPGA. But due to limited onboard memories, there are hard limitations on the operation conditions. The new algorithm uses independent event processing for each channel in FPGA and a highly optimized readout software for final event building. This allowed us to increase the throughput of the system from 600 MB/s to 7.25 GB/s on a readout computer with 20 CPU cores. We successfully use the system to take data at trigger rates of up to 5.5 kHz in run 2 of Belle II experiment since February 2024.
期刊介绍：
The IEEE Transactions on Nuclear Science is a publication of the IEEE Nuclear and Plasma Sciences Society. It is viewed as the primary source of technical information in many of the areas it covers. As judged by JCR impact factor, TNS consistently ranks in the top five journals in the category of Nuclear Science & Technology. It has one of the higher immediacy indices, indicating that the information it publishes is viewed as timely, and has a relatively long citation half-life, indicating that the published information also is viewed as valuable for a number of years.
The IEEE Transactions on Nuclear Science is published bimonthly. Its scope includes all aspects of the theory and application of nuclear science and engineering. It focuses on instrumentation for the detection and measurement of ionizing radiation; particle accelerators and their controls; nuclear medicine and its application; effects of radiation on materials, components, and systems; reactor instrumentation and controls; and measurement of radiation in space.
京公网安备 11010802042870号
京ICP备2023020795号-1
分享
求助内容：
应助结果提醒方式：
扫码关注我们
