Speaker
Project(s) or EGEE activity presenting the demo or poster (project or activity names only)
NA4-biomed
Special requirements other than the set up mentioned in the CfA text.
none
Abstract
Based on medical imaging use-cases, a qualitative comparison of ARC and gLite is presented. Regarding data management, ARC and VBrowser LFC clients are compared to access files stored on EGEE from NorduGrid computing resources. Two scenarii of content-based image retrieval are considered depending on whether data is accessed from a hospital (requiring the use of a VPN) or not. Results show that VBrowser and ARC clients reach similar performance compared to gLite. In all cases, the VPN overhead is dramatically predominant. To compare job management systems, the MOTEUR workflow manager is interfaced with ARC job submission, enabling the execution on NorduGrid resources of workflows initially developed for EGEE. A comparison is then performed on an application to radiotherapy simulation. On this use-case, ARC's approach of implementing matchmaking on the client side yields better performance than gLite's. The infrastructure overhead is highly predominant though, both for ARC and gLite.
