Details

Autor(en) / Beteiligte

• Bradley, D
• Sfiligoi, I
• Padhi, S
• Frey, J
• Tannenbaum, T

Titel

Scalability and interoperability within glideinWMS

Ist Teil von

• Journal of physics. Conference series, 2010-04, Vol.219 (6), p.062036

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2010

Link zum Volltext

Quelle

EZB Free E-Journals

Beschreibungen/Notizen

• Physicists have access to thousands of CPUs in grid federations such as OSG and EGEE. With the start-up of the LHC, it is essential for individuals or groups of users to wrap together available resources from multiple sites across multiple grids under a higher user-controlled layer in order to provide a homogeneous pool of available resources. One such system is glideinWMS, which is based on the Condor batch system. A general discussion of glideinWMS can be found elsewhere. Here, we focus on recent advances in extending its reach: scalability and integration of heterogeneous compute elements. We demonstrate that the new developments exceed the design goal of over 10,000 simultaneous running jobs under a single Condor schedd, using strong security protocols across global networks, and sustaining a steady-state job completion rate of a few Hz. We also show interoperability across heterogeneous computing elements achieved using client-side methods. We discuss this technique and the challenges in direct access to NorduGrid and CREAM compute elements, in addition to Globus based systems.