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:

  1. From Electronics Desktop, select Tools > Options > General Options.

    The General Options window appears.

  2. Click Beta Options to launch the Beta Options window.
  3. Under the Q3D subheading, select Enable ACRL Distributed Memory.
  4. Click OK.
  5. Restart Electronics Desktop to apply changes.

Submitting a Distributed Memory AC RL Solution

In order to distribute memory when running an AC RL analysis:

  1. Create an AC RL solution setup.
  2. Prepare to submit an HPC job.
  3. 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.

        Enable Matrix Solver from HPC and Analysis Options

      • 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.

        Enable Matrix Solver from Job Distribution Window

      • Click OK.
  4. Submit the job.