Optistruct Running Job Problem

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

Hallo Guys,

 

i have a part with TETRA 1st oreder element optimized the running was quick (20 min) simulation time and it needed low memory, where i have used default value.

 

However i have changed the Element to 2ed Order TETRA to have better results. but the simulation does not run or maybe tooks to long i get a massage with :

 

 The amount of memory allocated for the run is 648 MB.
 This run will use minimum core processing in the solver.

 

 

What to do????

 

Thanks in advance

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Answers

  • tinh
    tinh Altair Community Member
    edited April 2016

    Hi,

    specify option ' -len 4000 ' to indicate using 4G RAM for running

    if message does not say 'this will use in core processing', try increasing -len option (you may need more RAM with 2nd order)

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited April 2016

    Hallo Mr. tinh,

     

    where i can specify this option len 4000. I am using GUI of Optistruct, i have only a memory default. do you mean that?

     

    Thanks for your reply.

    Tamer

  • tinh
    tinh Altair Community Member
    edited April 2016

    On Optistruct GUI, can you see 'Options:' entry box?

    and there is a button '...' on the right, click on it, then check on '-len', enter memory MB

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited April 2016

    Thanks for the answere, how do i know how many CPU is used by Optistruct as Default value?

  • tinh
    tinh Altair Community Member
    edited April 2016

    I don't know default NCPU

    But try run a job and open task manager, look for how many CPU working

    for more info about CPU, open '.stat' file to see

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited April 2016

    thsnks alot this is informative and rather simple!

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