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Dr. rer. nat. Marc Gebhardt
2024-10-24

Identifying and Resolving Performance Issues

This article shows you how to increase the performance of your simulation models.

Performance issues in simulation models can have many causes—ranging from outdated software versions to hardware bottlenecks and suboptimal settings. This article provides a systematic guide to identifying and resolving these issues.

Update

The issue you have encountered may already have been addressed in the latest version of the software. For further details on how to download this version, please refer to the following link:

Hardware

  • Please first make sure that your system fulfills the optimal hardware requirements. The single-core speed is particularly important for determining a processing time.
  • The scope of parallelization (simultaneous calculation on several cores) is described in the following FAQ and in the manual on the Dlubal website:
  • Please make sure that you are using the dedicated graphics card for RFEM:

Server, WebService, and Cloud Computing

  • To avoid the need to adjust your hardware, it may be helpful to run RFEM without the GUI (RFEM Server):
  • It is also possible to access the software via our WebService:
  • Performing the calculation directly on our cloud service further reduces the load on your system:

Settings

  • Poor performance is often caused by the antivirus program's real-time monitoring, which slows down the program:
  • Additional Settings in RFEM 6:
    • You can adjust the grid of surfaces/smooth it.
    • You can deactivate the table so it does not have to be updated.
    • For the graphics performance, there are some settings available under Options Program Options (multisampling (anti-aliasing), animate view changes, fading effect, and so on)

Model Adjustments

  • Another reason for poor performance might be overly detailed modeling. The following technical article shows how to avoid this:
  • The following article specifically addresses determining the correct FE mesh size:
  • Similarly, ignoring the rotational degrees of freedom in solid elements significantly speeds up the calculation and reduces memory usage. For typical large-scale systems (for example, geotechnical engineering analyses), this should not compromise the quality of the results. However, caution is advised for flat models subjected to bending loads.
  • Furthermore, you can try to work with partial models and transfer the support loads using the load wizard:
  • Regarding the generation of the printout report, you may find it helpful to know that you can also create multiple separate printout reports and then output them as a single document.
  • For more tips on improving performance with large models, click here:
Author

Marc works in Product Engineering with a focus on geotechnical engineering and also assists with customer support. He applies his technical expertise to address complex issues.

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