Oct 10 – 14, 2016
San Francisco Marriott Marquis
America/Los_Angeles timezone

Experience in using commercial clouds in CMS

Oct 13, 2016, 11:00 AM
GG C2 (San Francisco Mariott Marquis)


San Francisco Mariott Marquis

Oral Track 3: Distributed Computing Track 3: Distributed Computing


Maria Girone (CERN)


Historically high energy physics computing has been performed on large purpose-built computing systems. In the beginning there were single site computing facilities, which evolved into the Worldwide LHC Computing Grid (WLCG) used today. The vast majority of the WLCG resources are used for LHC computing and the resources are scheduled to be continuously used throughout the year. In the last several years there has been an explosion in capacity and capability of commercial and academic computing clouds. Cloud resources are highly virtualized and intended to be able to be flexibly deployed for a variety of computing tasks. There is a growing interest amongst the cloud providers to demonstrate the capability to perform large scale scientific computing. In this presentation we will discuss results from the CMS experiment using the Fermilab HEP Cloud Facility, which utilized both local Fermilab resources and Amazon Web Services (AWS). The goal was to work with AWS through a matching grant to demonstrate a sustained scale approximately equal to half of the worldwide processing resources available to CMS. We will discuss the planning and technical challenges involved in organizing the most IO intensive CMS workflows on a large-scale set of virtualized resource provisioned by the Fermilab HEPCloud. We will describe the data handing and data management challenges. Also, we will discuss the economic issues and cost and operational efficiency comparison to our dedicated resources. At the end we will consider the changes in the working model of HEP computing in a domain with the availability of large scale resources scheduled at peak times.

Primary Keyword (Mandatory) Cloud technologies

Primary authors


Anthony Tiradani (Fermilab) Brian Paul Bockelman (University of Nebraska (US)) Burt Holzman (Fermi National Accelerator Lab. (US)) Dave Dykstra (Fermi National Accelerator Lab. (US)) David Alexander Mason (Fermi National Accelerator Lab. (US)) Dirk Hufnagel (Fermi National Accelerator Lab. (US)) Eric Vaandering (Fermi National Accelerator Lab. (US)) Hyung Jin Kim (Fermilab) Ian Fisk (Fermi National Accelerator Lab. (US)) Oliver Gutsche (Fermi National Accelerator Lab. (US)) Steven Timm (Fermilab)

Presentation materials