Note the following known limitations while using the Mechanical APDL application for Arm.
Table 7.1: Unsupported Features and Affected Commands
| Unsupported Feature | Affected Command(s) | Notes |
|---|---|---|
| Graphical user interface (GUI) | ||
| User programmable feature (UPF) |
Affects the | |
| Ansys Material Lab (AML) Python module | ||
| Macros | ||
| Python |
TBFT,AINI TBFT,AFIT | |
| Mechanical APDL plugins | ||
| Harmonic analysis (Variational Technology and Harmonic Balance methods) |
ANTYPE,HARMIC (only the full method will be selected) HROPT,AUTO (only the full method will be selected) HROPT,VT (unsupported) HROPT,HBM (unsupported) |
The default method for harmonic analysis will be the full method. |
| Damped system using the QR algorithm Mode-extraction method |
MODOPT,QRDAMP | |
| Shifted damp modal analysis |
DAMPOPT,SHIFT,ON | |
| Reinforcing elements | ||
| GPU acceleration |
ACCOPTION,ON |
Turning on GPU acceleration using this command is not supported. Use the |
| MNF export | You are unable to import or export .mnf files. | |
| EXB export |
CMSOPT,,,,,,,EXB | |
| SMART remesher |
CGROW,METHOD,SMART | |
| Resource prediction | ||
| Octree |
NLADAPTIVE,,,,OCTREE | |
| Pass command string to system | ||
| Ocean loads | ||
| Steady state rolling analysis | ||
| Transform and read a .cdb file | ||
| HD5 files | ||
| Hash key for license checks | Affects the -hs=AMI flag | |
| The Mechanical APDL Product Launcher | You are unable to run the launcher261 executable on Arm systems. |
Using the following commands will result in an error:
Table 7.2: Partially Supported Features and Affected Commands
| Partially Supported Feature | Affected Command(s) | Notes |
|---|---|---|
| JPEG export |
/SHOW,JPEG |
The JPEG library used in Mechanical APDL may conflict with the default library used on many Arm machines. As an alternative, you can use /SHOW,PNG. |
| PCG solver |
EQSLV,PCG |
Only symmetric matrices are supported. |
| Substructure analysis |
ANTYPE,SUBSTR |
Unsupported when run with generation and expansion passes and component mode synthesis. |
| Base mesh overloading and underloading |
Unsupported when generating a 3D smeared member (tri/quad) with more than four intersection points. |
Table 7.3: Partially Supported Features and Affected Elements
| Partially Supported Feature | Affected Element(s) | Notes |
|---|---|---|
| 22x coupled-field elements |
Structural, thermomagnetic, and/or thermoelectromagnetic contributions are not supported. | |
| Acoustic elements |
Nonlinear acoustic loads are not supported. |