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Failed to run Explicit Dynamic on ANSYS 18.1

    • rickywugunawan
      Subscriber

      Hi everyone, I am trying to run a model using Explicit Dynamics AUTODYN. It was okay before but suddenly I can't run my ANSYS using Explicit Dynamics AUTODYN anymore. I have already reinstalled the program a couple times but it still does not work. This is the preview of the "solution information" and "RSM"


      Explicit Dynamic Solution InformationRSM


      This is the second time I faced this problem. I manage to solve it on other computer by reinstalling and delete all of the ANSYS model inside my computer. I tried to do the same on the other computer but it did not work.


      I saw similar problem on this forum but no one answered yet. can anyone help me?


      Thank you so much

    • Wenlong
      Ansys Employee

      Hi,


      I am looking into this issue and will let you know once I find a solution. 


      Regards,


      Wenlong


       

    • Wenlong
      Ansys Employee

      Hi,


      Sorry for the late response. Just checking when you do the installation, have you installed the MPI?



      Regards,


      Wenlong


       

    • Wenlong
      Ansys Employee

      If you want to turn off distributed run and run SMP, Aniket pointed out how to turn if off in the old Mechanical interface: https://studentcommunity.ansys.com/thread/mpi-error-while-doing-hyperelastic-simulation/?order=all#comment-21f2cf48-8222-4eed-b1cd-ab9601140727


      Regards,


      Wenlong


       

    • rickywugunawan
      Subscriber

      Hi Wenlong, 


      Thank you so much for your time and responses.


      I did not install the MPI though, is it necessary? Because previously I can run my ANSYS just fine before.


      I also follow the Aniket advice to turn off the distributed run. But it still did not solve the problem and I still face the same problem.


       Stuck on


      Is it possible that the problem is on the Explicit Dynamic AUTODYN License?


      Because in my different computer, after the "AUTODYN PRE-SOLVER SETUP COMPLETE." appears, usually it says license acquired or something like that. But this time it can not get the license, thus it won't continue the process.


      Regards, 


      Ricky

    • Wenlong
      Ansys Employee

      Hi Ricky,


      Due to my limited knowledge, I don't have a direct answer.


      I found a post on the same issue as yours and it may be helpful to you. https://studentcommunity.ansys.com/thread/explicit-dynamics-on-hpc/.


      Let me ask experts in RSM for help and get back to you. 


      Regards,


      Wenlong


       


       

    • tsiriaks
      Ansys Employee

      Don't install the extra MPI.


      If this worked before and now showing this issue in RSM report, try this in CMD Prompt


      move "%appdata%ansys" "%appdata%ansys.old"


       


      If this doesn't help,


      Are you using VPN ?


      Make sure you connect to either LAN or Wi-FI but not both at the same time


      Can you try temporarily disabling all security (Anti-virus, Firewall) on the machine ?


      Thanks,


      Win

    • rickywugunawan
      Subscriber

      Hi Win,


      thank you for your response. This is the CMD result, it thinks it doesn't work


      I don't use a VPN. I already try disabling Anti-virus, Firewall, and the Internet. But nothing works.


      I will provide another setting in my model, hopefully, it will be helpful for you.



       


      Regards, 
      Ricky

    • tsiriaks
      Ansys Employee

      Hi Ricky,


      The fact that the first command doesn't work is a red flag. Somehow, you don't have access (mostly 'write' permission) to C:UsersUSERAppDataRoamingAnsys  , please check permissions settings and everything there.


      Thanks,


      Win

    • rickywugunawan
      Subscriber

      dear Win,


      Thank you for the advice. Finally, I decided to format my computer and reinstall my Windows and it works. I can use the explicit dynamics normally again now.


      Regards, 


      Ricky


       
    • tsiriaks
      Ansys Employee

      Hi Ricky,


      Great to hear that it's working for you now ! There was some write permission issue, so ANSYS can't write files there.


      Thanks,


      Win

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