Multithreading in HM2017

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

Hi,

I am trying to implement Multi-threading in HM 2017 using TCL to compute faster results.

Is it possible with HM2017 after adding Thread package to its tcl.

 

Thanks in Advance, for help.

 

Regards

Piyush

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Answers

  • tinh
    tinh Altair Community Member
    edited October 2017

    which results do you want to calculate?

    it is possible to create threads but i don't think they can access hm database

    creating threads is simple, but dividing jobs may be tough

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited October 2017

    Are you speaking about Solver?

    For Hypermesh (Pre-Post) I don't think you can do something about this: either works, either does not work, that's all. 

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2017

    Dear @tinh and @Q.Nguyen-Dai,

     

    1. I need to import a model and then extract its geometry in threads. Like I need to extract Faces , Edges & Elements in parallel threads to save time. 

    2. I also wan't to display a GUI, which goes into 'not responding' loop while long calculations. So I want to display this GUI using one more parallel thread.

     

    (P.S. : Not able to Display GUI in threads using HM. Whenever I source my GUI file, it does not display any GUI, but in Main Thread, its working fine.)

     

    Is it possible with Hypermesh 2017 ?

     

    Thanks for help.

     

    Regards

    Piyush

  • tinh
    tinh Altair Community Member
    edited October 2017

    what do you mean by 'extract face, edge, elem' ?

    could you give an example?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited October 2017

    Dear @tinh

    1. Import Geometry file in Hypermesh

    2. This Step is Divided into 3 steps (using Multithreading)

    2.1  eval *createmark elems 1 all;  set 3d_elems [hm_getmark elems 1];

    2.2 eval *createmark elems 1 all;  *findfaces elems 1; eval *createmark elems 2 'by collector name' '^faces';  set 2d_elems [hm_getmark elems 1];

    2.3 eval *createmark elems 1 $all ;   *findedges elems 1 0;  eval *createmark elems 1 'by collector name' '^edges';  set tempp [hm_getmark elems 1];

     

    I need to complete this 2nd step using 3 child threads parallel.

    This is just an example, via which I need to do computations simultaneously.

     

    And I also wan't to display a GUI, which gets 'not responding forever' while long computation again & again. 

    I wan't the GUI to be active in this condition.

     

    Best Regards

    Piyush 

     

  • tinh
    tinh Altair Community Member
    edited October 2017

    It is impossible,

    as I said, i am not sure how child threads can access hm database

    they just load an tcl interp to perform calculations, i think so.

    if you find a way to do that please tell me.

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited October 2017

    Good luck to Piyush  :D/emoticons/default_biggrin.png' srcset='/emoticons/biggrin@2x.png 2x' title=':D' width='20' />

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited November 2017

    Dear @tinh

     

    I have tried hm_database access using threads, I am not able to access.

     

    Then, Child Thread can display a GUI, which keeps updating even with Long Calculations in Hypermesh ?

    I am not able to display GUI (eg. A button widget) using Child Thread in Hypermesh.

    Is this also possible ?

     

    Best Regards

    Piyush

     

  • tinh
    tinh Altair Community Member
    edited November 2017

    forget MT in hm, it just mess up your codes. 

    simply use update command to keep gui updating

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