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Puhti and Mahti computing services have been decommissioned. Puhti and Mahti login nodes and storage services will remain available until 15 October 2026, but are no longer covered by service contracts. Please clean up and migrate your data to Roihu ASAP. See Roihu data migration guide for instructions.

Contact

Technical service support requests and feedback

  • Contact us through email or phone or come to our weekly user support session on Zoom
  • Email: servicedesk@csc.fi
  • Phone: +358 9 457 2821
  • Open Monday to Friday from 8.30 a.m. to 4 p.m.

Weekly research support coffees

Does formulating your support request in writing feel cumbersome? Please consider joining our weekly research support coffee sessions on Wednesdays at 2 p.m. where you can directly discuss with our specialists!

LUMI User Support Team

If you have any questions or issues related to using LUMI, please contact the LUMI User Support Team.

How to write good support requests

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