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Success Story

CSC advances national research with Roihu by Bull

A next-generation national supercomputer enabling AI‑driven, data‑intensive science in Finland

Outcomes

Triples Finland’s national supercomputing capacity  

Enables AI, GPU‑accelerated and data‑intensive research at scale  

Sustains Finland’s international research competitiveness

At a glance

Roihu is Finland’s new national supercomputer operated by CSC. Built on BullSequana technology, it provides researchers with a versatile, secure and highly energy‑efficient computing environment for AI, simulations and data‑driven science.

The client

CSC – IT Center for Science is a Finnish state‑owned company providing high‑performance computing, data management and digital services for research, education and public institutions.

Why Bull

Bull delivers reliable, sustainable high‑performance computing infrastructures tailored to national supercomputing initiatives, supporting scientific excellence, AI development and long‑term digital sovereignty.

Strengthening Finland’s research competitiveness 

Finland`s new national supercomputer, Roihu, at the CSC – IT Center for Science data center in Kajaani is designed specifically to meet the needs of Finnish research, Roihu provides the foundation for ensuring that Finland remains internationally competitive in data‑intensive science. 

Roihu triples the computing capacity of Finland’s existing national supercomputers. Together with the pan‑European LUMI supercomputer located in Finland, it creates a unique environment for academic research and innovation activities.

Built for data‑intensive and AI workloads 

Roihu is ideally suited for training artificial intelligence models, AI research and the analysis of large data volumes. High‑performance computing plays a critical role in fields such as drug and vaccine development, climate research and materials science, with applications expanding as data‑intensive science continues to grow. 

In addition to supporting academic research, Roihu enhances companies’ RDI activities and product development by providing access to advanced computing resources. 

Secure computing and future‑ready technologies 

Roihu introduces new capabilities through integration with CSC’s secure data management environments. This enables the use of high‑performance computing with sensitive and confidential data, such as health data, opening new possibilities for research that may lead to future treatments or medicines. 

By connecting Roihu to a quantum computer, Finland opens opportunities for hybrid computing that combines high‑performance computing, artificial intelligence and quantum computing. This approach enables new ways to solve complex scientific problems and strengthens Finland’s position in emerging technologies. 

A national investment with broad societal impact 

Roihu represents a significant investment in national research infrastructure. According to studies referenced by CSC, investments in high‑performance computing generate substantial societal returns. Ownership and governance of Roihu remain in Finnish hands, reinforcing national resilience and security of supply. 

Tailored user support and training ensure that researchers across disciplines can effectively utilize the system, promoting interdisciplinary research and collaboration between research organizations and companies. 

Technology foundation

Roihu is manufactured by Bull and based on the BullSequana XH3000 hybrid system. It includes 486 CPU nodes and 132 GPU nodes, delivering 10.5 petaflops of CPU performance and 23.4 petaflops of GPU performance, providing world‑class computing capabilities for Finnish research. 

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