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LS-DYNA Implicit single precision/double precision error

- November 2, 2021 at 1:40 pm
  
  robgics
  Subscriber
  
  A user has come to us saying that what was working for them in 2019R3 is now not working with 2021R1.
  *** Error 60022 (IMP+22)
     LS-DYNA Implicit is not supported in single precision.
     Please switch to DOUBLE Precision (I8R8) version.
  E r r o r  t e r m i n a t i o n
  
  This SOUNDS like an easy fix...just switch to double precision! But this apparently isn't ringing any bells with the user. What does "switch to DOUBLE precision version" actually mean?
  Thanks.
- November 3, 2021 at 12:38 pm
  
  Ram Gopisetti
  Ansys Employee
  
  each dyna solver has the single and double versions, for implicit you have to work in double precision and you can easy switch back in LSRUN.
  cheers, Ram
- November 3, 2021 at 1:50 pm
  
  robgics
  Subscriber
  
  Great, that answers where the selection is made.
  Our users frequently use the command line more so than the GUI, so we tried calling the _dp versions directly, but got a license error. It was looking for a local LSTC license. One of our engineers figured out that exporting LSTC_LICENSE=ANSYS solves that problem.
  We're checking with them now to see if that resolves all of their issues.
  Thanks for the help Rob

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