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direct and iterative solver

User: "hiranwale_bharat"
Altair Community Member
Updated by hiranwale_bharat

Hello everyone,

 

How do I choose between direct and iterative solver?

 

I have already used card named 'solvtyp' and used 'nlparmx'. and tried options there. But while solving I always get a comment saying solver used is direct sparse matrix solver.

 

How do I choose iterative solver?

 

Regards,

Bharat

 

 

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    User: "Rahul Rajan_21763"
    New Altair Community Member
    Updated by Rahul Rajan_21763

    Hi,

     

    Please have a look at reference guide for SOLVTYP . Read comments 4 & 5.

    Attached screenshot is for reference. 

     

    Regards 

    Rahul R

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    User: "hiranwale_bharat"
    Altair Community Member
    OP
    Updated by hiranwale_bharat

    Hello Rahul,

    thanks for the reply.

     

    i have already used all options in solvtype. But whenever I run any analysis I always get the message saying sparse direct solver selected.

     

    Can you share your comments on that?

     

    Regards,

    Bharat

    User: "Altair Forum User"
    Altair Employee
    Updated by Altair Forum User

    Bharat,

     

    Please check if you model has any of the below mentioned if you have linear static subcase with optimization

    <?xml version="1.0" encoding="UTF-8"?>post-7616-0-31126500-1446522144_thumb.jp

    User: "hiranwale_bharat"
    Altair Community Member
    OP
    Updated by hiranwale_bharat

     

    Bharat,

     

    Please check if you model has any of the below mentioned if you have linear static subcase with optimization

    Attached Thumbnails

    Hello Prakash,

     

    I am not performing optimization but only analysis.

     

    Thanks and Regards,

    Bharat