Solving Simulations in the Ansys Cloud

This procedure shows you how to solve simulations in the Cloud using Speos Core to specify the cluster configuration and Ansys Cloud as a job scheduler.

Prerequisites: Ansys Cloud Installation should be complete and your Speos Core environment should be configured.
  1. From the Speos interface, open Speos Core.
  2. Click File > Open to load an exported *.speos simulation.
  3. Click Speos HPC Simulation .


  4. In Job name, type a meaningful job simulation name that will help you identify the job in the job monitor.
    Note: By default this name is your user name with a simulation index. The index is incremented at each new simulation.
  5. From the Select Region drop-down list, select the Cloud region that is the closest to you.
    Note: A flexible region allows you to define the Total number of cores below.
  6. In Configuration choose from a list of pre-configured hardware configurations that have been optimized for the solver that you are using. Each configuration has a set number of cores, nodes, and Ansys Elastic Units (AEUs) per hour.
  7. With the Total number of cores slider, define the maximum number of cores to use for the simulation.

    We recommend you to use a multiple of the number of core available per machine, as job are launched on several nodes with the same number of cores per node. For example, for HB60rs, define a multiple of 60.

  8. Check Download results after completion if you want the results to be downloaded in the .speos folder.
  9. In Number of rays, define the number of rays used for simulation. This number is retrieved from the *.speos data set in Speos but can be adjusted if needed.
  10. In Simulation time, define maximum time the simulation can run.
    Note: This duration cannot exceed the "Maximum scheduler wall clock", that is 1 hour.
  11. Tick Disable ray files and lpf/lp3 output if you want to disable the generation of these outputs in order to improve simulation time and performance.
  12. Click Submit job.
    The job input files begin uploading to a storage directory in the Cloud. Once the files have been uploaded, the Cloud service will allocate resources for the job, and the job will start running on the Cloud hardware.
    Note: You will receive an email notification when a job starts, completes, fails, or is stopped, enabling you to keep track of jobs even when you are not using the Cloud portal.
  13. Once the simulation is complete, from the Ansys Cloud portal, click Jobs, select your job from the list, then click Files and download your output result files into the Speos isolated files folder.

The simulation is solved through Ansys Cloud and can be managed on the Cloud portal.

For more information on file transfers or job monitoring on the Cloud portal, refer to the Solving in the Cloud section of the Ansys Cloud Guide.

The configuration you defined will be the one that will be used when using the Speos HPC Compute command.