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LiveLink for Creo is very slow
Posted 28.08.2025, 05:24 GMT-4 Structural Mechanics, Modeling Workflow, User Interface Version 6.3 1 Reply
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It seems that the time required to import a model from PTC Creo to COMSOL increases exponentially with the number of components.
At some amount of surfaces, or solids, or boundaries, or whatever - I have not managed to figure out what exactly triggers the slowdown - the time required seems to go to infinity.
Looking at the status bar a ticker walks leisurely like "generating associativity for entity 7734 of 12995" and sometimes it just stops at "processing selections" and waits for half an hour. Or fails entirely after prolonged waiting. Which is odd since I have no selections defined in Creo.
Importing the same model as a STEP is massively faster, but then I lose associativity with all the rest of the features, boundary loads, shell thicknesses, et cetera - and have to rebuild it every time.
Can this be improved? I have no high hopes, since I suspect it is a consequence of the Java interface to Creo - which is why I post it here as a concern and suggestion rather than a support issue.
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Turning off the associativity for edges in the settings for the LiveLink node might improve performance without influencing the associativity for the faces. I would recommend though that you open a support case where you can submit the PTC Creo files, so that we can investigate the issue.
Best regards, Lorant
