The computing grid

CC-IN2P3 is a Tier-1 site belonging to the WLCG computing grid; it provides in this context a set of computing resources for those user communities.

For more details, please refer to the official documentations:

In case of question or problem, please contact our user support.

Access to resources

If you are registered with a “Virtual Orgnization” (VO) recognized by the computing grids for which CC-IN2P3 is a partner, then you can use all or part of those services.

In case you own a computing account at CC-IN2P3, you can also use the interactive servers as a “User Interface” (UI) with the grid.

To obtain and manage a certificate, please refer to the page Personal certificates

DIRAC Middleware

CC-IN2P3 hosts 2 DIRAC middleware instances.

Instance providing grid services for VOs within the EOSC framework.

https://dirac.egi.eu

To use the CLI:
% source /cvmfs/dirac.egi.eu/dirac/bashrc_egi

Instance dedicated to VOs directly collaborating with IN2P3.

https://dirac.in2p3.fr

To use the CLI:
% source /cvmfs/dirac.egi.eu/dirac/bashrc_in2p3

For more information on the middleware, please refer to the DIRAC Documentation.

Other CC-IN2P3 grid services

CC-IN2P3 provides a set of services for the computing grid, which this section presents the most important components.

Computing Element

The CC-IN2P3 is providing HTCondor-CE as Computing Element flavour.

Storage Elements

The storage systems dCache, XRootD and iRODS are part of the CC-IN2P3 service portfolio and are integrated into the WLCG and EGI computing grids.

Information system

Two instances of BDII are provided by CC-IN2P3: site-bdii and top-bdii.

Vobox

LHC ALICE, and LHCb experiences have a Vobox service at CC-IN2P3 for their own needs.