Distributed Memory AC RL Solutions (Beta)
Q3D Extractor's Distributed Memory AC RL Solver (MPI-FMM) can take advantage of cloud computing platforms in order to simulate very large designs. By redistributing the mesh so that each MPI task handles only a partial mesh, and by parallelizing tasks, MPI-FMM allows Q3D Extractor to handle designs containing 10 million+ mesh elements.
Important:
- Ansys recommends using Distributed Memory AC RL solutions for applications that are large in size and cannot fit on a single node.
- Using too many tasks for smaller meshes will slow down the solver.
- For best performance, use a smaller number of cores per task (ideally 4).
Enabling Distributed Memory AC RL Solutions
As this is a Beta feature, it must first be enabled:
- From Electronics Desktop, select Tools > Options > General Options.
The General Options window appears.
- Click Beta Options to launch the Beta Options window.
- Under the Q3D subheading, select Enable ACRL Distributed Memory.
- Click OK.
- Restart Electronics Desktop to apply changes.
Submitting a Distributed Memory AC RL Solution
In order to distribute memory when running an AC RL analysis:
- Create an AC RL solution setup.
- Prepare to submit an HPC job.
- Enable AC RL Matrix Solver one of two ways:
- From the solution setup's General tab:
- Click HPC and Analysis Options.
- Select an HPC configuration and click Edit to launch the Analysis Configuration window.
- From the Job Distribution tab, select the check box next to Matrix Solver to enable it.

- Click OK.
- From the Submit Job window:
- Select the Compute Resources tab.
- Ensure Use Automatic Settings is not enabled.
- In the Job Distribution area, click Modify to launch the Job Distribution window.
- Select the check box next to Matrix Solver to enable it.

- Click OK.
- From the solution setup's General tab:
- Submit the job.