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What is PDC?

PDC provides high performance computing (HPC) services for academic and business/industrial research. PDC's services include HPC systems for performing computations and simulations (as well as pre- and post-processing of data), short- and long-term data storage, cloud facilities and assistance from application and systems experts.

PDC at a glance

More about PDC

PDC background & overview

  • PDC was founded in 1990, to provide HPC computing and storage resources, together with advanced system and application support, to Swedish academic researchers, particularly in the Stockholm region. Since then, PDC has grown to be one of Sweden’s major national supercomputing centres, and is involved with a range of national and international projects and research centres.
  • As a centre serving the Stockholm region, PDC collaborates closely with the Karolinska Institute, Stockholm University and other schools and divisions at KTH, although about half of PDC’s usage is generated by researchers elsewhere in Sweden or Europe via NAISS.
  • PDC’s facilities are also used for some commercial research (for example, by Scania). To support European industry and innovation through the use of HPC, PDC offers both commercial and open-source software suitable for use in many different industry segments.
  • PDC’s activities are funded primarily by the Swedish Research Council (VR) through NAISS, and by KTH, with additional support from various Scandinavian and European HPC research projects.

Overview of HPC services offered by PDC

  • A new HPE Cray EX supercomputer system, known as Dardel, was installed at PDC in two phases during 2021 and 2022. Previously the main HPC systems at PDC were Beskow (a Cray XC40) and Tegner (a pre- and post-processing system for Beskow).
  • A cloud service is currently being established and is expected to be available towards the summer of 2023.
  • PDC also provides storage and data management services, including facilities for long-term archiving.
  • Additionally PDC offers expert support for application tuning and scaling in a number of disciplines, including fluid dynamics, molecular dynamics, computational chemistry, bioinformatics, and neuroinformatics.

Education and training at PDC

  • PDC offers a comprehensive education and training program with the flagship being the PDC summer school. Held annually, the school offers an introduction to high performance computing for local and international students and researchers (both from academia and also the commercial sector).
  • PDC also runs an ongoing programme of seminars on topics of interest for HPC, with invited speakers from all over the world.
  • Staff from PDC are involved with various HPC courses that are offered at KTH and at other Swedish academic institutions.
  • PDC also contributes computing resources for many university courses at both undergraduate and postgraduate levels.

Projects PDC participates in

  • PDC is an active member of the major European HPC infrastructure projects (notably PRACE, HPC-Europa3, EOSC-Nordic and NeIC) and is heavily involved in exascale research projects, such as the PDC-led BioExcel Centre of Excellence for Biomolecular Research and the EXCELLERAT Centre of Excellence for Engineering Applications, as well as the EPiGRAM-HS project. PDC also collaborates on many other related projects such as VESTEC, Sage2 and the Human Brain Project.
  • Additionally PDC supports a wide variety of researchers from KTH and elsewhere in their research projects by providing HPC resources and expertise. In this capacity, PDC takes part in several projects at a national level (for example, through the Swedish e-Science Research Centre or SeRC, and the Swedish Research Council or VR), and also at the international level (for example, in relation to the European Commission and Nordforsk).

PDC Board


  • Lennart Johnsson - Department of Computer Science, University of Houston


  • Lars Nordström - Deputy Head, School of Electrical Engineering and Computer Science, KTH
  • Philipp Schlatter - Head of the Institute of Fluid Mechanics (LSTM), Friedrich Alexander University (FAU) Erlangen-Nürnberg
  • Mårten Ahlquist - Deputy Head of the Division of Theoretical Chemistry and Biology, School of Engineering Sciences in Chemistry, Biotechnology and Health, KTH
  • Ellen Sherwood - SciLifeLab and Department of Biochemistry and Biophysics, SU
  • Thorsten Mauritsen - Department of Meteorology (MISU), SU
  • Mattias Chevalier - Scania


  • Björn Alling - Director, NSC, LiU, and Acting Director, NAISS, LiU