| Published Articles | |
| Report number | FERMILAB-CONF-13-696-CD |
| Title | Opportunistic Resource Usage in CMS |
| Author(s) | 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.) ; Fajardo, E (Andes U., Merida) ; Linares, L (Andes U., Merida) ; Wagner, R (TI, San Diego) ; Konstantinov, P (Sofiya, Inst. Nucl. Res.) ; Blumenfeld, B (Johns Hopkins U.) ; Bradley, D (Wisconsin U., Madison) |
| Collaboration | CMS |
| Publication | 2014 |
| Number of pages | 4 |
| In: | J. Phys.: Conf. Ser. 513 (2014) 062028 |
| In: | 20th International Conference on Computing in High Energy and Nuclear Physics 2013, Amsterdam, Netherlands, 14 - 18 Oct 2013, pp.062028 |
| DOI | 10.1088/1742-6596/513/6/062028 |
| Subject category | Computing and Computers |
| Accelerator/Facility, Experiment | CERN LHC ; CMS |
| Abstract | 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. But there are more resources available opportunistically both on the GRID and in local university and research clusters which can be used for CMS applications. We will present CMS' strategy to use opportunistic resources and prepare them dynamically to run CMS applications. CMS is able to run its applications on resources that can be reached through the GRID, through EC2 compliant cloud interfaces. Even resources that can be used through ssh login nodes can be harnessed. All of these usage modes are integrated transparently into the GlideIn WMS submission infrastructure, which is the basis of CMS' opportunistic resource usage strategy. Technologies like Parrot to mount the software distribution via CVMFS and xrootd for access to data and simulation samples via the WAN are used and will be described. We will summarize the experience with opportunistic resource usage and give an outlook for the restart of LHC data taking in 2015. |
| Copyright/License | publication: (License: CC-BY) |
Corresponding record in: Inspire
Записът е създаден на 2015-06-17, последна промяна на 2022-08-17