Altair PhysicsAI 2026 Release Notes

Automatic Vector Extraction

PhysicsAI can now automatically parse vector data contained in .out or .pch files with the same name and stored in the same subdirectory as the .h3d files used during dataset creation.

Depending on the file extension used, the nomenclature used for the extracted vectors is out {Type}–{Requests}-{Components} or pch {Type}–{Requests}-{Components}.

Migration to Pytorch

PhysicsAI now uses Pytorch. All the required libraries are packaged as part of the installation. GPUs are automatically detected and used.

Batch Utility Moved to Common Components

On Linux, the location of the batch utility has changed from <install_location>\hwdesktop\hw\eds\linux\edspy.sh to <install_location>\common\eds\linux\bin\linux\edspy.sh. On Windows, the location has changed from <install>\hwdesktop\hw\eds\bin\win64\edspy.bat to <install_location>\common\eds\win64\bin\win64\edspy.bat.