Very extensive optimization durations for every run

Altair Forum User
Altair Forum User
Altair Employee
edited October 2020 in Community Q&A

Hello,

 

I don't have a question concerning the setup of an optimization, but rather why one of my computers takes extremely long to finish an optimization.

I have a laptop with the Student Version of the HyperWorks Suite and a desktop PC with the full version. The laptop finishes optimizations way faster than the PC, although the PC has way better hardware. This doesn't make sense. I checked the CPU and RAM usage and both are only about 5 to 6 % in use, so theoretically there is more capacity.

 

Is there a setting in HyperMesh/ Optistruct, where the reason for this could be?

Thank you very much for your answer!

 

Tagged:

Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2017

    Hi,

     

    Can you share the .out files from both laptop and PC, please?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2017

    Hello Prakash,

     

    I just send the files to your FileTransferLink

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2017

    Hi,

     

    From both the out files I see the difference between start and end time is almost same. 

    <?xml version="1.0" encoding="UTF-8"?>Computertime.PNG

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2017

    For that optimization it was fine. However, the more complex the optimization is, the bigger is the difference. I had a run with a very thick part and with the Laptop it lasted about 30 minutes and with the PC I had to cancel the operation because it was running iteration 10 after about 2 hours. 

    Since I cancelled the operation, I could not send you that out file.

    But the difference is definitely there.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2017

    Hi Kensei,

     

     

    It is difficult to comment at this point. We need information about PC, Laptop, (RAM, ROM, OS etc..) and solver written files (.stat, .out, etc...)

     

    Is the disk space same on both the machines?

     

    Issue could be  with scratch files... 

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2017

    Hello Prakash,

     

    thank you for your response. In the mean time I was able to find the issue. My PC has been used by other people before and they left me with almost no space on the hard drive.

    So, pretty simple solution.

     

    Best,

    Chris

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2017

    Hi Chris,

     

    Thank you for the update. Well my first suspect was RAM and ROM. 

Categories