Optistruct - NLSTAT (Implicit) Analysis, errors and convergence issues

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

pl discuss if anyone received the following error messages (Ver13.0)?

 

 *** ERROR # 157 ***
 Error opening the scratch file ./1CAA-02G-001_CONROD_TEN-COMP_PL_5828_s40.rs~
    Fortran error code =      9
    This may be caused by not having the access right to open the file,
    not enough memory left for the system routines, or some other
    system setup related reasons.
  This might be caused by real time protection from antivirus.
 Disable real time protection at minimum for files with extension .rs~.
 This error was detected in subroutine opseqscr.

 *** ERROR # 158 ***
 Error encountered when accessing the scratch file.
    error from subroutine xdslrs
    Solver error no. =   -702
    This may be caused by insufficient disk space or some other
    system resource related limitations.
  This might be caused by real time protection from antivirus.
 Disable real time protection at minimum for files with extension .rs~.
 This error was detected in subroutine bcsprefct.

 

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Answers

  • Rahul_P1
    Rahul_P1
    Altair Employee
    edited May 2015

    1) Make sure your antivirus does not have real time protection for files of extension .rs

    2) There may not have been enough RAM for this analysis, Use -fixlen option

    To avoid over specifying the memory when using this option, it is suggested first to run OptiStruct with the -check option and use the results of that run to properly define the memory size for the -fixlen option.

    3)Check with your IT and see if there is any reason disk space would be reduced for you

    4)specify the c:\temp as the location for the scratch files and see

    You can do this by defining the TMPDIR control card in the model or using the -tmpdir c:\temp option when you submit the job. 

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