Information here should help the users of the Experimental Execution Environment (EEE) of the ComPat project get their applications running.
In order to use the resources that the ComPat EEE makes available you have to have a grid certificate. Grid certificates bind a cryptographic key to a Distinguished Name (DN) and is used as a way to identify you as a valid computing resource user on all the different sites of the computing grid.
Now for the practical points:
LRZ provides some documentation on certificates (which partly apply to other computing centres as well) on:
https://www.lrz.de/services/compute/grid_en/certificate_en/person-certificate_en/
Further LRZ information on grid computing, tools (globus toolkit, etc.) and handling which you might find useful:
https://www.lrz.de/services/compute/grid_en/
https://www.lrz.de/services/compute/grid_en/grid-middleware_en/globus_guide_en