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Using CVMFS on a distributed Kubernetes cluster - The PRP experience
/ Sfiligoi, Igor (speaker) (UCSD)
The Pacific Research Platform (PRP) is operating a Kubernetes cluster that manages over 2.5k CPU cores and 250 GPUs. The compute nodes are distributed over several locations, mostly in California, all connected with high speed networking of 10Gbps or higher.
In order to support OSG users, we were in need of providing CVMFS support in the Kubernetes cluster. [...]
2019 - 1217.
General; CernVM Workshop 2019
External links: Talk details; Event details
In : CernVM Workshop 2019
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The machine/job features mechanism
/ Alef, M (KIT, Karlsruhe) ; Cass, T (CERN) ; Keijser, J J (NIKHEF, Amsterdam) ; McNab, A (Manchester U.) ; Roiser, S (CERN) ; Schwickerath, U (CERN) ; Sfiligoi, I (Fermilab)
Within the HEPiX virtualization group and the Worldwide LHC Computing Grid’s Machine/Job Features Task Force, a mechanism has been developed which provides access to detailed information about the current host and the current job to the job itself. This allows user payloads to access meta information, independent of the current batch system or virtual machine model. [...]
2017 - 4 p.
- Published in : J. Phys.: Conf. Ser. 898 (2017) 092032
Fulltext: PDF;
In : 22nd International Conference on Computing in High Energy and Nuclear Physics, CHEP 2016, San Francisco, Usa, 10 - 14 Oct 2016, pp.092032
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Using the GlideinWMS System as a Common Resource Provisioning Layer in CMS
/ Balcas, J (Vilnius U.) ; Belforte, S (INFN, Trieste ; Trieste U.) ; Bockelman, B (Nebraska U.) ; Colling, D (Imperial Coll., London) ; Gutsche, O (Fermilab) ; Hufnagel, D (Fermilab) ; Khan, F (Quaid-i-Azam U.) ; Larson, K (Fermilab) ; Letts, J (UC, San Diego) ; Mascheroni, M (INFN, Milan Bicocca ; Milan Bicocca U.) et al.
CMS will require access to more than 125k processor cores for the beginning of Run 2 in 2015 to carry out its ambitious physics program with more and higher complexity events. During Run1 these resources were predominantly provided by a mix of grid sites and local batch resources. [...]
FERMILAB-CONF-15-603-CD.-
2015 - 8 p.
- Published in : J. Phys.: Conf. Ser. 664 (2015) 062031
IOP Open Access article: PDF; External link: FERMILABCONF
In : 21st International Conference on Computing in High Energy and Nuclear Physics, Okinawa, Japan, 13 - 17 Apr 2015, pp.062031
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Pushing HTCondor and glideinWMS to 200K+ Jobs in a Global Pool for CMS before Run 2
/ Balcas, J (Vilnius U.) ; Belforte, S (INFN, Trieste ; Trieste U.) ; Bockelman, B (Nebraska U.) ; Gutsche, O (Fermilab) ; Khan, F (Quaid-i-Azam U.) ; Larson, K (Fermilab) ; Letts, J (UC, San Diego) ; Mascheroni, M (INFN, Milan Bicocca ; Milan Bicocca U.) ; Mason, D (Fermilab) ; McCrea, A (UC, San Diego) et al.
The CMS experiment at the LHC relies on HTCondor and glideinWMS as its primary batch and pilot-based Grid provisioning system. So far we have been running several independent resource pools, but we are working on unifying them all to reduce the operational load and more effectively share resources between various activities in CMS. [...]
FERMILAB-CONF-15-604-CD.-
2015 - 7 p.
- Published in : J. Phys.: Conf. Ser. 664 (2015) 062030
IOP Open Access article: PDF; External link: FERMILABCONF
In : 21st International Conference on Computing in High Energy and Nuclear Physics, Okinawa, Japan, 13 - 17 Apr 2015, pp.062030
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Opportunistic Resource Usage in CMS
/ Kreuzer, Peter (RWTH Aachen U.) ; Hufnagel, Dirk (Fermilab) ; Dykstra, D (Fermilab) ; Gutsche, O (Fermilab) ; Tadel, M (UC, San Diego) ; Sfiligoi, I (UC, San Diego) ; Letts, J (UC, San Diego) ; Wuerthwein, F (UC, San Diego) ; McCrea, A (UC, San Diego) ; Bockelman, B (Nebraska U.) et al.
/CMS
CMS is using a tiered setup of dedicated computing resources provided by sites distributed over the world and organized in WLCG. These sites pledge resources to CMS and are preparing them especially for CMS to run the experiment's applications. [...]
FERMILAB-CONF-13-696-CD.-
2014 - 4 p.
- Published in : J. Phys.: Conf. Ser. 513 (2014) 062028
Fulltext: PDF; External link: FERMILABCONF
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013, pp.062028
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The pilot way to Grid resources using glideinWMS
/ Sfiligoi, Igor (Fermilab) ; Bradley, Daniel C (Wisconsin U., Madison) ; Holzman, Burt (Fermilab) ; Mhashilkar, Parag (Fermilab) ; Padhi, Sanjay (UC, San Diego) ; Wurthwrin, Frank (UC, San Diego)
Grid computing has become very popular in big and widespread scientific communities with high computing demands, like high energy physics. Computing resources are being distributed over many independent sites with only a thin layer of grid middleware shared between them. [...]
FERMILAB-CONF-09-373-CD.-
5 p.
- Published in : WRI World Congress 2 (2009) 428 - 432
Fulltext: PDF;
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CMS experience of running glideinWMS in High Availability mode
/ Sfiligoi, Igor (UC, San Diego) ; Letts, James (UC, San Diego) ; Belforte, Stefano (INFN, Trieste) ; Mc Crea, Alison Jean (UC, San Diego) ; Larson, Krista Elaine (Fermilab) ; Zvada, Marian (Karlsruhe U., EKP) ; Holzman, Burt (Fermilab) ; PÂ Mhashilkar ; Bradley, Daniel Charles (Wisconsin U., Madison) ; Saiz Santos, Maria Dolores (UC, San Diego) et al.
The CMS experiment at the Large Hadron Collider is relying on the HTCondor-based glideinWMS batch system to handle most of its distributed computing needs. In order to minimize the risk of disruptions due to software and hardware problems, and also to simplify the maintenance procedures, CMS has set up its glideinWMS instance to use most of the attainable High Availability (HA) features. [...]
CMS-CR-2013-369.-
Geneva : CERN, 2013 - 6 p.
Fulltext: PDF;
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013
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Using ssh as portal - The CMS CRAB over glideinWMS experience
/ Belforte, Stefano (INFN, Trieste) ; Sfiligoi, Igor (UC, San Diego) ; Letts, James (UC, San Diego) ; Fanzago, Federica (INFN, Padua) ; Saiz Santos, Maria Dolores (UC, San Diego) ; Martin, Terrence (UC, San Diego)
The User Analysis of the CMS experiment is performed in distributed way usingboth Grid and dedicated resources. In order to insulate the users from the details of computing fabric, CMS relies on the CRAB (CMS Remote Analysis Builder) package as an abstraction layer. [...]
CMS-CR-2013-367.-
Geneva : CERN, 2013 - 8 p.
Fulltext: PDF;
In : 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013
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