Release 2025 R2 includes the following improvements to the solution process:
Enhancements include:
The default support for message passing interface (MPI) software has been upgraded to Intel MPI 2021.14.2 for both Linux and Windows. Previously, the default was Intel MPI 2021.13.0.
When using AMD processors, the default support for message passing interface (MPI) software has been updated to Open MPI 5.0.6. Previously, the default was Open MPI 4.0.5.
For details and other optional supported MPI software versions, see MPI Software in the Parallel Processing Guide.
Updates include:
The ROCm libraries have been updated to 6.3.3. The prior release used version 6.2.0.
The CUDA libraries have been updated to 12.8. The prior release used version 12.6.
The performance of the PCG solver has been improved when running with GPU acceleration as more equation solver calculations are offloaded on the GPU card(s).
For more information on GPU cards and their updates, see Requirements for the GPU Accelerator in Mechanical APDL (Linux) and Requirements for the GPU Accelerator in Mechanical APDL in the Ansys, Inc. Installation Guides (Windows).
For Linux and Windows, the following cards have been tested and added to the list of recommended GPU devices for the GPU accelerator:
NVIDIA B300
NVIDIA B200
For the complete list of recommended GPU accelerators, see Requirements for the GPU Accelerator in Mechanical APDL (Linux) and Requirements for the GPU Accelerator in Mechanical APDL in the Ansys, Inc. Installation Guides (Windows).
The mixed equation solver now supports all static thermal analyses except for quasi thermal analyses (THOPT,QUASI).