| Dates: | 2012 – May 2018 |
| Location: | Forschungszentrum Jülich |
| Sponsors: | Helmholtz Association, Gauss Centre for Supercomputing |
| Speed: | 5.9 petaflops |
| Chartname: | TOP500 |
| Chartposition: | 5th |
| Purpose: | Scientific research |
JUQUEEN was a Blue Gene/Q system supercomputer built by IBM.[1] Financed by the Helmholtz Association and the Gauss Centre for Supercomputing (GCS) in equal parts from federal funds and state funds from North Rhine-Westphalia,[2] it was put into operation in 2012 at the Forschungszentrum Jülich as the successor to the JUGENE supercomputer.
JUQUEEN was the fastest computer in Europe[3] and ranked 5th on the TOP500 list of the most powerful supercomputers.[4] It was also one of the most energy-efficient systems in the world for its time and ranked 5th on the Green500 list. It consisted of 458,752 processor cores and had a maximum computing power of 5.9 petaflops.
JUQUEEN was used for several research projects, including the Human Brain Project.[5]
JUQEEN was shut down in May 2018 after six years of operation and replaced by the successor JUWELS.