How can I pass arguments to an ABAQUS python code?

Question

I have written a UMAT subroutine in which I call a Python code of ABAQUS simulation.

st1=SYSTEM('abaqus cae noGUI="c:\temp\pycode.py"')

I need to pass some variables from Fortran to my Python code and bring back some other values from Python to Fortran. Now, I write those variables in text files and load them in Python and Fortran. By this way, I cannot parallelize my code since all the cores wants to write in a file at the same time.

Miguel · Accepted Answer · 2019-01-31 11:15:49Z

3

Arguments can be passed into the script by entering -- on the command line, followed by the arguments separated by one or more spaces. These arguments will be ignored by the Abaqus/CAE execution procedure, but they will be accessible within the script. Example: abaqus cae noGUI=pythonScript -- -passedToPythonScript.

For more information, see “Abaqus/CAE execution,” Section 3.2.6 of the Abaqus Analysis User's Guide

answered Jan 31, 2019 at 11:15

Miguel

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5 Comments

RKM Over a year ago

Thanks for your response. I have seen it in the manual. However, I do not know how to get back the results of my python code to my UMAT.

Miguel Over a year ago

Passing back to Fortran is always a challenge. I don't think cae scripts are able to return anything. Using a file is the simplest way. Alternatively, you can create an always running server that responds to requests directly and that would solve your parallelism since once request gets one answer.

RKM Over a year ago

Would you please elaborate the second way more? Since it is parallel, creating a file and reading it is not possible

Daniel F Over a year ago

Maybe check out this

Miguel Over a year ago

Daniel F's answer is exactly what I meant.

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