Enabling opportunistic resources for CMS Computing Operations

Apr 14, 2015, 3:30 PM
C210 (C210)



oral presentation Track7: Clouds and virtualization Track 7 Session


Dirk Hufnagel (Fermi National Accelerator Lab. (US))


With the increased pressure on computing brought by the higher energy and luminosity from the LHC in Run 2, CMS Computing Operations expects to require the ability to utilize “opportunistic” resources — resources not owned by, or a priori configured for CMS — to meet peak demands. In addition to our dedicated resources we look to add computing resources from non CMS grids, cloud resources, and national supercomputing centers. CMS uses the HTCondor/glideinWMS job submission infrastructure for all its batch processing, so such resources will need to be transparently integrated into its glideinWMS pool. Bosco and parrot wrappers are used to enable access and bring the CMS environment into these non CMS resources. Here we describe our strategy to supplement our native capabilities with opportunistic resources and our experience so far using them.

Primary author

Dirk Hufnagel (Fermi National Accelerator Lab. (US))


Anthony Tiradani (Fermilab) Dr Burt Holzman (Fermi National Accelerator Lab. (US)) Dr David Alexander Mason (Fermi National Accelerator Lab. (US)) Krista Larson (Fermi National Accelerator Lab. (US)) Marco Mambelli (University of Chicago (US)) Oliver Gutsche (Fermi National Accelerator Lab. (US)) Parag Mhashilkar (Fermi National Accelerator Laboratory)

Presentation materials