The teams within the LiHPC already have numerous collaborations within the CEA as well as nationally and internationally.

They are involved in collaborations with the following organizations:

• NNSA,
• Jülich Supercomputing Centre,
• Exascale Computing Research Laboratory (Intel, UVSQ, CEA),
• URCA,
• IFPEN,
• ATOS.

The LiHPC teams participate in three European EuroHPC projects SEA Projects with numerous partners:

• DEEP-SEA
• RED-SEA
• IO-SEA

Within the CEA, they have collaborations on the topics of meshing, input-output management, preparation of hydrodynamic codes to the Exascale, libraries of linear algebra for thermomechanical codes.