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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.

Star-CCM+

Simcenter STAR-CCM+ is a commercial Computational Fluid Dynamics (CFD) based simulation software developed by Siemens Digital Industries Software. Simcenter STAR-CCM+ allows the modeling and analysis of a range of engineering problems involving fluid flow, heat transfer, stress, particulate flow, electromagnetics and related phenomena.

License

CSC does not have own Star-CCM+ licenses for customer use on CSC's computing platforms. Instead, you may purchase a Power-On-Demand (PoD) license to be used on the servers, for more information, see this web page.

Available

Several versions of Star-CCM+ are available on Roihu, Mahti and LUMI supercomputers. On Roihu, the software is available on both CPU and GPU (aarch64) partitions. Use command 

module available
on the server to check and check lines star-ccm+/<version number>. The double precision version will have the -R8 suffix on the end of the module version number.

On LUMI, you need to first load the module environment, and then give module spider command 

module use /appl/local/csc/modulefiles
module spider starccm+

Usage

There are example batch job scripts available on Roihu in directories: 

/appl/soft/manual/eng/x86_64/star-ccm+/example_batch_job_scripts
and 
/appl/soft/manual/eng/aarch64/star-ccm+/example_batch_job_scripts

On LUMI, the example batch job file is available here: 

/pfs/lustrep3/appl/local/csc/soft/eng/starccm+/parjob_starccm_lumi

Copy the file and modify it for your own use. Further instructions are given in the file and the documentations of the platforms.

Support

In a problem situation, please contact CSC Service Desk.

More information