memory problem

VAL1
VAL1 Altair Community Member
edited October 2020 in Community Q&A

Which parameter should be changed?

 

*** ERROR # 381 ***
  Allocated working storage insufficient.
  Available memory = 2157 MB.
  Required memory = 3548 MB.
  Number of vectors in modal space = 5628.
  Number of eigenvectors = 6.
  Specifying number of modes in EIGRL card of modal subcase may solve
  this issue. Or, set param NUMEG to a value higher than the number of
  vectors in modal space.
  ...

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Answers

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2018

    Hi,

     

    You can either reduce the number of modes on EIGRL card or go to control cards>> PARAM>>NUMEG and specify a number higher than 1000 

  • VAL1
    VAL1 Altair Community Member
    edited August 2018

    Thank you

     

    I changed  number of modes on EIGRL from 6 to 3.

    set param NUMEG to 6000

    but same error happened. 

     

     *** ERROR # 381 ***
     Allocated working storage insufficient.
     Available memory = 2157 MB.
     Required memory = 3546 MB.
     Number of vectors in modal space = 5625.
     Number of eigenvectors = 3.
     Specifying number of modes in EIGRL card of modal subcase may solve 
     this issue. Or, set param NUMEG to a value higher than the number of
     vectors in modal space.

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2018

    Hi @naoki

     

    Is it possible to share the model file?

     

    Please use the file transfer link in my signature to share the model file
     

     

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2018

    Hi,

    Can you add SYSTETTING(MINLEN=5000) and check if that helps at your end?

     

    I am able to run the model on my machine with MINLEN of 5000

     

     

    <?xml version="1.0" encoding="UTF-8"?>MINLEN.png

  • VAL1
    VAL1 Altair Community Member
    edited August 2018

    I cannot find MINLEN in SYSSETTING card.

    So where should I see? same as OS_RAM_INIT?

    If I change memory size,  Required memory is increasing.

     

     *** ERROR # 381 ***
     Allocated working storage insufficient.
     Available memory = 4820 MB.
     Required memory = 6530 MB.
     Number of vectors in modal space = 7636.
     Number of eigenvectors = 6.
     Specifying number of modes in EIGRL card

  • Q.Nguyen-Dai
    Q.Nguyen-Dai Altair Community Member
    edited August 2018

    @naoki: How about your hardware? RAM? How many nodes/elems?

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited August 2018
    Altair Forum User said:

    I cannot find MINLEN in SYSSETTING card.

    So where should I see? same as OS_RAM_INIT?

    If I change memory size,  Required memory is increasing.

     

     *** ERROR # 381 ***
     Allocated working storage insufficient.
     Available memory = 4820 MB.
     Required memory = 6530 MB.
     Number of vectors in modal space = 7636.
     Number of eigenvectors = 6.
     Specifying number of modes in EIGRL card

    You can add MINLEN in .fem file. Open the .fem file in any text editor and add the same. I will share the file with you for reference. 

  • VAL1
    VAL1 Altair Community Member
    edited September 2018

    Hello, Prakash san

     

    It could be solved when I added MINLEN=5000 in .fem file directly.

    Thank you so much!

     

     

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