Operational
Grid (low-carbon with heat reuse)
MareNostrum 5 Supercomputing Center
Barcelona, Catalonia, Spain
Capacity
10MW
Operators
Barcelona Supercomputing Center · EuroHPC JU · Lenovo
AI Focus
HPC + AI (EuroHPC digital twin)
Year
2023
MareNostrum 5 is a heterogeneous EuroHPC supercomputer installed at the Barcelona Supercomputing Center. Its Lenovo Neptune liquid-cooled CPU partition spans 6,400 Sapphire Rapids nodes delivering 40 petaflops, complemented by accelerator nodes with NVIDIA H100 GPUs and experimental European technologies for AI workflows. Warm-water cooling and building heat reuse keep PUE near 1.1 while the 314-petaflop system powers programs like Destination Earth’s climate digital twins, precision medicine, and sovereign European language models.
Coordinates
41.389, 2.113