Plish in gradient step?

Started by avsfan92, February 04, 2026, 10:02:15 PM

Previous topic - Next topic

avsfan92

Hello,

During the optimization of a complex, the optimization crashed on step 72 with the error message fatal error in routine plisch.``. After using actual -r it seems to be working, but I was wondering what this error is and how to avoid it?

Thank you,
CO

yannickf

Hello,

plisch and plumm are subroutines to delete/replace/write to the control file with the help of a scratch file. Apparently, replacing data in your control failed due to a missing scratch file or not being able to open one (no unit available). actual -r resets the control file and allows you to restart the calculation. This time getting a unit seemed to work properly.

Best,

Yannick

avsfan92

Yannick,

Thank you, I appreciate your advice.

CO