Greece inaugurated its Daedalus supercomputer on Oct. 19, adding computing capacity intended for researchers and businesses across Europe ahead of a gradual rollout of user access planned for December.
Daedalus recorded 85.69 petaflops in the June 2026 TOP500 ranking, placing 31st worldwide. It ranked 23rd on that month’s Green500 energy-efficiency list. The European High Performance Computing Joint Undertaking (EuroHPC JU) describes Daedalus as a mid-range system. Germany’s JUPITER Booster recorded 1,000 petaflops on the same TOP500 list.
The Greek Ministry of Digital Governance and Artificial Intelligence put the project’s budget at €58.9 million, including VAT. Of that amount, €41 million is budgeted for Hewlett Packard Enterprise’s computing equipment, software and related work, while €17.9 million is allocated to MainSys for the data center and electromechanical work. The ministry named the European Union’s NextGenerationEU program and EuroHPC JU as funding sources.
Daedalus occupies a former power-station building at the National Technical University of Athens’ Lavrio Technological and Cultural Park. The National Infrastructures for Research and Technology (GRNET) operates the system, which uses NVIDIA GH200 accelerators and direct liquid cooling. The ministry described the inauguration’s switch-on as symbolic; full configuration must precede user access.
The system will supply computing power to PHAROS, one of the first seven AI Factories selected by EuroHPC JU. PHAROS focuses on health, culture and language, and sustainability. Its business arm, Hellenic Artificial Intelligence Factory S.A., is owned 70% by Growthfund and 30% by the ministry, according to their March joint announcement.
The ministry lists researchers, universities, startups, small and medium-sized businesses, industry and public bodies in Greece and elsewhere in Europe as intended users. Access is to run through GRNET and EuroHPC JU, and through PHAROS where applicable. GRNET will announce access calls, terms and instructions, but terms and deadlines remain unannounced. The ministry expects users to gain access gradually from December 2026, once the system is fully configured.
