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How to Disable Auto-Execution of Animate Preview on Schematic Open to Fix Large Design Lag

Hopken
Hi everyone,
I'm encountering an issue where Animate Preview automatically runs immediately every time I open a schematic in Virtuoso. This causes severe lag and slow loading when working with large, complex circuits, as the preview process consumes significant system resources during schematic launch.
I want to completely disable the automatic execution of Animate Preview on schematic open, and only trigger it manually when needed. Could anyone share:
  1. The environment variables, SKILL variables, or configuration settings that control this auto-run behavior
  2. How to permanently disable the auto-preview feature
  3. Any workarounds to prevent Animate from running automatically at schematic load
Thanks  for your help!
  • Andrew Grantham

    Hi,

    Animate as default automatically runs on schematics which have less that 100 instances.  This can be changed using the env var : 

    PULSIC_ANIMATE_AUTOMATIC_RUN_MAX_INSTANCE_COUNT

    If you set this to 0, then Animate will only run when you press the play button on the Animate Assistant.

    Best Regards,

    Andrew

  • Hopken
    in reply to Andrew Grantham
    Hi Andrew,
    Thank you so much for your prompt and clear reply! The issue has been perfectly resolved with the environment variable you provided. I really appreciate your expert guidance and support！
    Best regards,
    JH202604155337

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