Setting up the computer environment

The FCC-ee software tutorial for the FCC-ee BNL workshop (April 24–26, 2023) requires a Linux computer with the mounted CVMFS (/cvmfs/sw.hsf.org/key4hep/). This key4hep directory includes the C++ compiler and various external C++ libraries. If you do not plan to install the CVMFS pointed to the CERN libraries on your personal computer, use the following interactive nodes with ssh logins:

• lxplus.cern.ch - for people associated with CERN and having the CERN computer accounts.
• Members from the ATLAS/CMS and other collaborations can use their Tier3 computers with CVMFS.
• BNL participants can use NEED SOME TEXT
• OSG interactive nodes can be used by all other participants who cannot use the options mentioned above. These resources are available for the USA participants associated with US universities and laboratories.

If you are already associated with a USA institution, use this https://www.osgconnect.net/ link to sign-up. During the sign-up, request the project osg.FutureColliders (Sergei Chekanov is the project PI). Then you will be explained how to obtain the account. This project typically uses the “login05.osgconnect.net” interactive node. This note links the /cvmfs/sw.hsf.org/key4hep/ which will be needed for this tutorial.

BNL FCC-ee workshop organizers