Suche
Mein Konto
New supercomputer Otus” from the University of Paderborn: 5th place in the Green 500!
The University of Paderborn presents the new supercomputer “Otus”, which reached fifth place on the Green 500 rankings and works energy-efficiently.
New supercomputer Otus” from the University of Paderborn: 5th place in the Green 500!
On June 10, 2025, the University of Paderborn received a significant award in the world of supercomputing technology. The new supercomputer “Otus” has achieved impressive achievements by reaching number 5 on the international “Green 500” rankings. This list evaluates the energy efficiency of computer systems, which is of increasing importance today as the focus is on sustainable technology and resource-efficient computing.
“Otus” is a technological masterpiece with 142,656 processor cores and 108 GPUs, based on AMD processors of the current “Turin” generation. The supercomputer sets new standards with an IBM Spectrum Scale file system that offers a storage capacity of five petabytes. In addition, “Otus” is being developed by Lenovo in collaboration with pro-com Datensysteme GmbH and is scheduled to officially go into operation in the third quarter of 2023.
Technological highlights of “Otus”
“Otus” impresses not only with its high computing power, which is around twice as powerful as that of the previous system Noctua, but also with its diverse application options. The supercomputer enables computationally intensive applications such as atomistic simulations and quantum computing. In addition, the system is expandable to up to 100 FPGA cards, making it an ideal experimental field for computer system research.
A particularly environmentally friendly feature is the use of indirect free cooling, which ensures energy-efficient operation. In addition, 100 percent of the electricity required is generated from renewable sources, making the operation CO2-free. These sustainability aspects contribute to the fact that “Otus” is not only important for researchers from Germany, but also serves as a sustainable model for future data centers.
The “Green 500” rankings in comparison
In the current “Green 500” ranking, in which “Otus” is now in fifth place, four new systems have fought their way into the top 10. The German system JEDI at the Research Center Jülich remains at the top, which is the most energy efficient system with 72.73 gigaFLOPS per watt, followed by DeltaAI from the USA in second place. The complete rankings of the most efficient supercomputers are:
| Place | name | Efficiency (GFLOPS/Watt) |
|---|---|---|
| 1 | JEDI | 72.73 |
| 2 | DeltaAI | 72.07 |
| 3 | ROMEO-2025 | – |
| 4 | Adastra 2 | – |
| 5 | Isambard AI | – |
| 6 | Otus | 68.18 |
| 7 | Capella | – |
| 8 | SSC-24 Energy Modules | 67.25 |
| 9 | Helios | – |
| 10 | AMD Ouranos | – |
In recent years, the University of Paderborn has established itself as one of the leading players in the field of high-performance computing. “Otus” makes a significant contribution to National High Performance Computing (NHR) and offers researchers from all over Germany outstanding computing power. Procurement of the system cost around 14 million euros, financed by funding from the state of North Rhine-Westphalia and the federal government.
With its upcoming commissioning, “Otus” will certainly have the potential to support numerous research applications, thereby advancing the development of intelligent and sustainable technologies.