Connecting Restricted, High-Availability, or Low-Latency Resources to a Seamless Global Pool for CMS

Journal Article · Tue Nov 21 00:00:00 EST 2017 · Journal of Physics. Conference Series

DOI:https://doi.org/10.1088/1742-6596/898/5/052037· OSTI ID:1831937

Balcas, J. ^[1]; Bockelman, B.  ^[2]; Hufnagel, D.  ^[3]; Hurtado Anampa, K. ^[4]; Jayatilaka, B.  ^[3]; Khan, F. ^[5]; Larson, K. ^[3]; Letts, J.  ^[6]; Mascheroni, M.  ^[3]; Mohapatra, A. ^[7]; Marra Da Silva, J.  ^[8]; Mason, D. ^[3]; Perez-Calero Yzquierdo, A.  ^[9]; Piperov, S. ^[10]; Tiradani, A. ^[3]; Verguilov, V. ^[11]

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1. California Institute of Technology (CalTech), Pasadena, CA (United States)
2. Univ. of Nebraska, Lincoln, NE (United States)
3. Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
4. Univ. of Notre Dame, IN (United States)
5. Quaid-I-Azam University, Islamabad (Pakistan)
6. Univ. of California, San Diego, CA (United States)
7. Univ. of Wisconsin, Madison, WI (United States)
8. Universidade Estadual Paulista, São Paolo (Brazil)
9. Port d'Informació Científica, Barcelona (Spain); Research Centre for Energy, Environment and Technology (CIEMAT), Madrid (Spain)
10. Brown Univ., Providence, RI (United States)
11. Bulgarian Academy of Sciences, Sofia (Bulgaria)

The connection of diverse and sometimes non-Grid enabled resource types to the CMS Global Pool, which is based on HTCondor and glideinWMS, has been a major goal of CMS. These resources range in type from a high-availability, low latency facility at CERN for urgent calibration studies, called the CAF, to a local user facility at the Fermilab LPC, allocation-based computing resources at NERSC and SDSC, opportunistic resources provided through the Open Science Grid, commercial clouds, and others, as well as access to opportunistic cycles on the CMS High Level Trigger farm. In addition, we have provided the capability to give priority to local users of beyond WLCG pledged resources at CMS sites. Many of the solutions employed to bring these diverse resource types into the Global Pool have common elements, while some are very specific to a particular project. This paper details some of the strategies and solutions used to access these resources through the Global Pool in a seamless manner.

• Research Organization: Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States)
• Sponsoring Organization: USDOE Office of Science (SC), High Energy Physics (HEP)
• Contributing Organization: CMS Collaboration
• Grant/Contract Number: AC02-07CH11359
• OSTI ID: 1831937
• Report Number(s): FERMILAB-PUB-17-721-CMS; oai:inspirehep.net:1638160; TRN: US2216680
• Journal Information: Journal of Physics. Conference Series, Vol. 898, Issue 5; ISSN 1742-6588
• Publisher: IOP Publishing
• Country of Publication: United States
• Language: English

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