Can I use save/load functions in the python API?

Keelan_Brydon
Keelan_Brydon Altair Community Member
in Community Q&A

Hi there,

I am working with the Psim-Python API, and I would like to use the PSIM "save" function to pause and save my state in the simulation, and then the "load" function to continue the simulation from where I left off. I am wondering if it is possible to set the save and load flags through python?

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Answers

  • NikosDimitrakopoulos
    NikosDimitrakopoulos
    Altair Employee

    Hi @Keelan_Brydon,

    I know this is possible using the legacy PSIM scripting method with C. The same functions should be implemented with the Python API, so I will suggest the approach we have used until now.

    You can navigate to Script » Script Tool » Help » Simulation Functions»Simulate

    image.png
    image.png

    Looking forward to your feedback.

    BR,

    Nikos

  • Ignacio_Santana
    Ignacio_Santana Altair Community Member

    Hi NikosDimitrakopoulos,

    @Keelan_Brydon and I were working using the Python API, but when we call the simulation from Python using the command below, the system doesn't save the simulation:

    d3 = dict(Simview=-1, proportional_gain=kp, intergral_gain=ki, vout_set_point_volts=48
    
, buck_inductor_H=0.1e-3, buck_capacitor_F=0.1e-3, switching_frequency_hz=100e3,
    
TOTALTIME = SIM_TIME, SAVEFLAG = 1)    

    
 result = psim.PsimSimulate(BUCK_SIM_SIMULATION_FILE, BUCK_SIM_RESULT_FILE_SMV, **d3)

    Please let us know if we are doing something wrong, or if there is another way of doing it. the version of the package we are using is 2024.0:

    name='psimapipy',
description='A Python package for Altair PSIM Python APIs and commands',
version='2024.0',
url='https://www.altair.com/PSIM',
author='Altair Engineering',
packages=['psimapipy'],
package_data={"psimapipy": ["*.pyc"]}…

    Thank you very much,

    Ignacio

  • NikosDimitrakopoulos
    NikosDimitrakopoulos
    Altair Employee
    https://community.altair.com/discussion/comment/190512#Comment_190512

    Dear @Ignacio_Santana,

    We identified an issue with the Python Save/Load flags. Here is a workaround until the issue is fixed in next version with expected release in May:

    test1 1.py

    Please don't skip  "-i"  "-o"  "-v"

    As it won't work without them

    Hope this helps!

    BR,

    Nikos

  • Ignacio_Santana
    Ignacio_Santana Altair Community Member
    https://community.altair.com/discussion/comment/190610#Comment_190610

    Dear NikosDimitrakopoulos,

    Thank you for sharing this information. We'll Save/Load our simulation using this command until the new version is released.

    Thank you again,

    Ignacio Santana

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