Skip to content

Docs CSC now features an automatic Finnish translation. Click here for more information.

Warning!

Puhti and Mahti are being decommissioned in stages, and their storage areas will become fully unavailable from 15 October 2026. Clean up unnecessary files and move any data you need to keep by 31 August 2026. See the Roihu data migration guide for instructions on transferring your data to Roihu.

Puhti scratch is very full: keep only active data there and move or delete everything else. No new Puhti scratch quota will be granted.

Q20 Service in MyCSC

There are currently some issues with the Q20 service for projects that have Q20 allocations. If you cannot find the Aalto-Q20 service or are otherwise experiencing issues please contact the CSC Service Desk at servicedesk@csc.fi.

Overview

Quantum computers differ from their classical counterparts when it comes to the basic computational operators. Before QPUs can be utilized, they require tailor-made programs and algorithms. The Finnish Quantum-Computing Infrastructure FiQCI provides access to quantum computing resources through CSC's service portals.

Quantum Computers

Aalto Q20

Q20 is a 20 qubit IQM superconducting quantum computer operated by Aalto University.

Access to Q20 is provided through the LUMI supecomputer environment. Users will need to apply for a quantum computing project on LUMI, which gives access to Q20 through the LUMI job scheduler (SLURM). Refer to the Open Call publication for detailed instructions on how to apply for a project with Q20 access.

VTT Q50

Q50 is a 53-qubit quantum computer, also co-developed by VTT and IQM Quantum Computers.

Similar to Q20, Q50 is accessible through the LUMI supercomputer environment. Users will need to apply for a quantum computing project on LUMI. Upon approval, Q50 can be accessed using the LUMI job scheduler (SLURM). Refer to the Open Call publication for detailed instructions on how to apply for a project with Q50 access.

For further reading:

Simulators

Qiskit

The LUMI supercomputer now supports the simulation of quantum algorithms with up to 44 qubits using Qiskit, IBM’s open-source quantum computing framework. This capability enables researchers to explore and test large-scale quantum algorithms in preparation for quantum advantage.

For more details, refer to this blog