Python script to run a serie of simulations on EDEM

Julia Bonaldo
Julia Bonaldo Altair Community Member
edited October 2023 in Community Q&A

Hello,

I would like to know if someone has a script to run a series of simulations on EDEM. I can only run one simulation at a time, but it would be very helpful if I could set up a couple of simulations, and once one simulation is finished the next one on the list would automatically start.

It could be a draft of a script, I just need something as a base.

Thanks a lot.

Julia

Tagged:

Welcome!

It looks like you're new here. Sign in or register to get started.

Answers

  • PrasadAvilala
    PrasadAvilala
    Altair Employee
    edited October 2023

    Hi Julia,

     

    There is a bat file and pdf document explaining the procedure to submit jobs in batch mode.

    hope this helps.

     

     

    Thanks,

    Prasad A

  • Julia Bonaldo
    Julia Bonaldo Altair Community Member
    edited October 2023

    Hello Prasad,

    For some reason, I am not succeding in downloading your zip file. Where can I find this tutorial?


    Thanks 

  • PrasadAvilala
    PrasadAvilala
    Altair Employee
    edited October 2023

    Hello Prasad,

    For some reason, I am not succeding in downloading your zip file. Where can I find this tutorial?


    Thanks 

    Hi Julia,

     

    Please find the below link. 

    In this below link 3 tutorials please follow the instructions in 10.1 pdf document

     

    Tutorials, How To, Troubleshooting - EDEM Tutorial 10: Material Calibration and Batch Mode Simulations using EDEM Cal and EDEMpy (altair.com)

     

    Thanks,

    Prasad A

  • Stefan Pantaleev_21979
    Stefan Pantaleev_21979
    Altair Employee
    edited October 2023

    Hi Julia,

    You can find the tutorial here:

    EDEM Tutorial 10

    The first part covers running EDEM from command line and you can find further details on command flags in the EDEM documentation:

    EDEM batch mode docs

    There is also an easy graphical way to run EDEM simulations with varying parameters using HyperStudy which you would have access to under your units:

    EDEM-HyperStudy connector

    I recommend using the HyperStudy workflow so check out the how-to videos in the above link.

    Best regards,

    Stefan

  • Julia Bonaldo
    Julia Bonaldo Altair Community Member
    edited October 2023

    Thank you Stefan and Prasad for the answers.
    I've created a simple script shell if you use a Linux machine on SSH mode to run EDEM simulations. I checked the EDEM documentation, but it uses a .bat file, so I believe it's more applied to a Windows machine if I am not mistaken.

    As an example here I run 2 simulations in SSH, and once the first one is finished, the second one will start automatically:

    #!/bin/bash

    dos2unix run_simulations.sh

    # Define the simulation paths
    simulation_path1="enter_your_simulation1_path"
    simulation_path2="enter_your_simulation2_path"

    echo "Debug: Current directory is $(pwd)"  # Print the current working directory

    #to check if the path you entered is correct:

    echo "Debug: simulation_path1 is $simulation_path1"
    echo "Debug: simulation_path2 is $simulation_path2"

    # Run simulation 1 in the background
    echo "Running simulation 1: $simulation_path1"
    nohup edem -c -i "$simulation_path1/name_file.dem" -r 5 > simulation1.log 2>&1 &
    echo "Simulation 1 started in the background."

    # Wait for simulation 1 to finish
    wait

    # Run simulation 2 in the background
    echo "Running simulation 2: $simulation_path2"
    nohup edem -c -i "$simulation_path2/name_file.dem" -r 5 > simulation2.log 2>&1 &
    echo "Simulation 2 started in the background."

     

    In this case, I've added the command nohup, so The simulation will happen in the background. It means that if I turn off MobaXterm for example my simulation will keep running in the Linux machine.

    But I believe that if someone uses this script needs to be careful when killing a job as I am not sure if the last data will be saved.

     

    Please let me know if you have more suggestions to improve this shell.

     

    Julia

Welcome!

It looks like you're new here. Sign in or register to get started.

Welcome!

It looks like you're new here. Sign in or register to get started.