"The Globus Resource Allocation Manager (GRAM) is at the core of the Globus remote program execution infrastructure. GRAM allows you to run jobs remotely, using a set of WSDL client interfaces to submit, monitor, and terminate a job. A job request is written in the resource specification language (RSL) and processed by the Managed Job Service.
"In GT3, GRAM is divided into two big containers: the Master Hosting environment (MHE) and the User Hosting environment (UHE). The MHE is in charge of authorizing the GRAM request against the grid-map file and starting or pinging the UHE. It then uses a redirector to forward the request to the UHE process which, in turn, creates a Managed Job Service (MJS). MJS submits the job into the back-end scheduling system.
"Both environments interact in a typical GRAM request. This interaction is fully explained by Globus on the walk-though of typical GRAM request found at GT3 GRAM..."
