ARC Resource-coupled EXecution service

 NorduGrid is a collaboration aiming at development, maintenance and
 support of the middleware, known as the Advanced Resource
 Connector (ARC).
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 The ARC Resource-coupled EXecution service (AREX) is the Computing
 Element of the ARC middleware. AREX offers a full-featured middle
 layer to manage computational tasks including interfacing to local
 batch systems, taking care of complex environments such as data
 staging, data caching, software environment provisioning, information
 collection and exposure, accounting information gathering and
 publishing.