Network simulation of a 40 MHz event building system for the LHCb experiment
The LHCb experiment will be upgraded in 2021, and a new triggerless readout system will be implemented. In the upgraded system, both Event Building (EB) and event selection will be performed in software for every collision produced in every bunch-crossing of the LHC. In order to transport the full d...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
EDP Sciences
2020-01-01
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| Series: | EPJ Web of Conferences |
| Online Access: | https://www.epj-conferences.org/articles/epjconf/pdf/2020/21/epjconf_chep2020_01012.pdf |
| _version_ | 1818614279940603904 |
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| author | Pisani Flavio Colombo Tommaso Neufeld Niko Marconi Umberto Krawczyk Rafal Galli Domenico Schwemmer Rainer Durante Paolo |
| author_facet | Pisani Flavio Colombo Tommaso Neufeld Niko Marconi Umberto Krawczyk Rafal Galli Domenico Schwemmer Rainer Durante Paolo |
| author_sort | Pisani Flavio |
| collection | DOAJ |
| description | The LHCb experiment will be upgraded in 2021, and a new triggerless readout system will be implemented. In the upgraded system, both Event Building (EB) and event selection will be performed in software for every collision produced in every bunch-crossing of the LHC. In order to transport the full data rate of 32 Tb/s, we will use state of the art off-the-shelf network technologies, e.g. InfiniBand EDR. The full event building system will require around 500 nodes interconnected together via a non-blocking topology. Because of the size of the system it is challenging to test at production scale, before the actual procurement. Therefore, we resort to network simulations as a powerful tool for finding the optimal configuration. We developed an accurate low-level description of an InfiniBand based network with event building like traffic. We will present a full-scale simulation of a possible implementation of the LHCb EB network. |
| first_indexed | 2024-12-16T16:15:30Z |
| format | Article |
| id | doaj.art-47c60e3e18224affbc2217b98fc97d52 |
| institution | Directory Open Access Journal |
| issn | 2100-014X |
| language | English |
| last_indexed | 2024-12-16T16:15:30Z |
| publishDate | 2020-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | EPJ Web of Conferences |
| spelling | doaj.art-47c60e3e18224affbc2217b98fc97d522022-12-21T22:25:05ZengEDP SciencesEPJ Web of Conferences2100-014X2020-01-012450101210.1051/epjconf/202024501012epjconf_chep2020_01012Network simulation of a 40 MHz event building system for the LHCb experimentPisani FlavioColombo Tommaso0Neufeld Niko1Marconi Umberto2Krawczyk Rafal3Galli DomenicoSchwemmer Rainer4Durante Paolo5CERNCERNIstituto Nazionale di Fisica Nucleare – INFN, Sez. di BolognaCERNCERNCERNThe LHCb experiment will be upgraded in 2021, and a new triggerless readout system will be implemented. In the upgraded system, both Event Building (EB) and event selection will be performed in software for every collision produced in every bunch-crossing of the LHC. In order to transport the full data rate of 32 Tb/s, we will use state of the art off-the-shelf network technologies, e.g. InfiniBand EDR. The full event building system will require around 500 nodes interconnected together via a non-blocking topology. Because of the size of the system it is challenging to test at production scale, before the actual procurement. Therefore, we resort to network simulations as a powerful tool for finding the optimal configuration. We developed an accurate low-level description of an InfiniBand based network with event building like traffic. We will present a full-scale simulation of a possible implementation of the LHCb EB network.https://www.epj-conferences.org/articles/epjconf/pdf/2020/21/epjconf_chep2020_01012.pdf |
| spellingShingle | Pisani Flavio Colombo Tommaso Neufeld Niko Marconi Umberto Krawczyk Rafal Galli Domenico Schwemmer Rainer Durante Paolo Network simulation of a 40 MHz event building system for the LHCb experiment EPJ Web of Conferences |
| title | Network simulation of a 40 MHz event building system for the LHCb experiment |
| title_full | Network simulation of a 40 MHz event building system for the LHCb experiment |
| title_fullStr | Network simulation of a 40 MHz event building system for the LHCb experiment |
| title_full_unstemmed | Network simulation of a 40 MHz event building system for the LHCb experiment |
| title_short | Network simulation of a 40 MHz event building system for the LHCb experiment |
| title_sort | network simulation of a 40 mhz event building system for the lhcb experiment |
| url | https://www.epj-conferences.org/articles/epjconf/pdf/2020/21/epjconf_chep2020_01012.pdf |
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