Repurposing of the Run 2 CMS High Level Trigger Infrastructure as a Cloud Resource for Offline Computing Article Swipe
Marco Mascheroni
,
A. Pérez-Calero Yzquierdo
,
Edita Kizinevič
,
Farrukh Aftab Khan
,
Hyunwoo Kim
,
Maria Acosta Flechas
,
Nikos Tsipinakis
,
Saqib Haleem
,
Damiele Spiga
,
Christoph Wissing
,
Frank Würthwein
·
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1051/epjconf/202429503036
YOU?
·
· 2024
· Open Access
·
· DOI: https://doi.org/10.1051/epjconf/202429503036
The former CMS Run 2 High Level Trigger (HLT) farm is one of the largest contributors to CMS compute resources, providing about 25k job slots for offline computing. This CPU farm was initially employed as an opportunistic resource, exploited during inter-fill periods, in the LHC Run 2. Since then, it has become a nearly transparent extension of the CMS capacity at CERN, being located on-site at the LHC interaction point 5 (P5), where the CMS detector is installed. This resource has been configured to support the execution of critical CMS tasks, such as prompt detector data reconstruction. It can therefore be used in combination with the dedicated Tier 0 capacity at CERN, in order to process and absorb peaks in the stream of data coming from the CMS detector. The initial configuration for this resource, based on statically configured VMs, provided the required level of functionality. However, regular operations of this cluster revealed certain limitations compared to the resource provisioning and use model employed in the case of WLCG sites. A new configuration, based on a vacuum-like model, has been implemented for this resource in order to solve the detected shortcomings. This paper reports about this redeployment work on the permanent cloud for an enhanced support to CMS offline computing, comparing the former and new models’ respective functionalities, along with the commissioning effort for the new setup.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.1051/epjconf/202429503036
- https://www.epj-conferences.org/articles/epjconf/pdf/2024/05/epjconf_chep2024_03036.pdf
- OA Status
- diamond
- Cited By
- 1
- References
- 2
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4396680245
All OpenAlex metadata
Raw OpenAlex JSON
- OpenAlex ID
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https://openalex.org/W4396680245Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.1051/epjconf/202429503036Digital Object Identifier
- Title
-
Repurposing of the Run 2 CMS High Level Trigger Infrastructure as a Cloud Resource for Offline ComputingWork title
- Type
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articleOpenAlex work type
- Language
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enPrimary language
- Publication year
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2024Year of publication
- Publication date
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2024-01-01Full publication date if available
- Authors
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Marco Mascheroni, A. Pérez-Calero Yzquierdo, Edita Kizinevič, Farrukh Aftab Khan, Hyunwoo Kim, Maria Acosta Flechas, Nikos Tsipinakis, Saqib Haleem, Damiele Spiga, Christoph Wissing, Frank WürthweinList of authors in order
- Landing page
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https://doi.org/10.1051/epjconf/202429503036Publisher landing page
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https://www.epj-conferences.org/articles/epjconf/pdf/2024/05/epjconf_chep2024_03036.pdfDirect link to full text PDF
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YesWhether a free full text is available
- OA status
-
diamondOpen access status per OpenAlex
- OA URL
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https://www.epj-conferences.org/articles/epjconf/pdf/2024/05/epjconf_chep2024_03036.pdfDirect OA link when available
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Cloud computing, Large Hadron Collider, Resource (disambiguation), Provisioning, Computer science, Process (computing), Operating system, Detector, Distributed computing, Database, Real-time computing, Embedded system, Physics, Particle physics, Computer network, TelecommunicationsTop concepts (fields/topics) attached by OpenAlex
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1Total citation count in OpenAlex
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2024: 1Per-year citation counts (last 5 years)
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