Altair ultraFluidX 2022.3 Release Notes
New Features
- Command-line based ultraFluidX post processing tool
- There is a new command-line based post-processing tool to analyze EnSight results and aerodynamic coefficients from previous ultraFluidX simulations. You can compute minimum, maximum, arithmetic mean, and standard deviation of field variables and aerodynamic coefficients. These values can be computed in a user-defined time interval and for each element in the input data set. Reduction operations, such as the computation of global minimum or maximum, are not supported yet. The tool can process merged and distributed EnSight files and does not require GPUs.
Enhancements
- Memory balance for multi-GPU overset mesh simulations
- This release introduces an improved domain decomposition algorithm that reduces the memory imbalance for overset mesh simulations running on multiple GPUs. The GPU memory allocation is more evenly distributed across multiple GPUs, which enables larger simulations.
- More efficient output of overset mesh regions
- There is now an option to deactivate the time-varying EnSight .geo output to reduce the memory footprint and the number of files on disk. Additionally, you can turn off the time-varying geometry output to improve performance for section cut and partial volume outputs that are intersecting with overset mesh regions. In this case, the output topology is not updated at runtime anymore, and the initial mesh topology of the section cut or partial volume is used for all subsequent outputs.
Resolved Issues
- The outlet pressure boundary condition has been improved to address vehicle aerodynamics cases with explicit ground plates intersecting with the outlet plane and cases with zero reference velocity.