LS Dyna

LS Dyna

Topics related to LS-DYNA, Autodyn, Explicit STR and more.

LS-DYNA Implicit single precision/double precision error

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    • 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.

    • 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

    • 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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