FEKO mpiexec Error

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

Hi.

When i try to simulate my geometry in FEKO, i get this error:

How can i solve this?

Thanks...

5ab4ffee52837_2018-03-23(2).png.a8a29c324ff9d8bd90a98dc52b15a7ba.png

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Answers

  • JIF
    JIF
    Altair Employee
    edited March 2018

    Hello mustaphos,

     

    Am I correct when I say that you don't get this error (hydra error) for every run, but it happens sporadically? We have seen this problem a few times and it is a bug in Intel MPI. It has been reported to them and we are looking at newer versions to see if the problem has been resolved, but thus far they have not been able to resolve the problem. Running the simulation a second time should not result in the same problem (that has been our experience thus far).

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

    Hello mustaphos,

     

    Am I correct when I say that you don't get this error (hydra error) for every run, but it happens sporadically? We have seen this problem a few times and it is a bug in Intel MPI. It has been reported to them and we are looking at newer versions to see if the problem has been resolved, but thus far they have not been able to resolve the problem. Running the simulation a second time should not result in the same problem (that has been our experience thus far).

    Hi JIF.

    No.

    The error was happening every time i run the simulation in FEKO 2017.

    The FEKO 2018 was out recently and the distributor send me licence file and i setup this version and everthing is OK i guess.

    The simulation is still running.

    If i observe any issue i will post it.

    By the way, i am not certain but it could be because of other processes.

    I observed that when i free the RAM with tools of Advanced System Care software, all of the CPU, RAM, Storage those used by FEKO kernel and CADFEKO immediately drops and then come backs to previous usage status.

    I don't know why but it is.

    I didn't detect relation between them but anyway, it was worth to mention.

    Regards...

  • Altair Forum User
    Altair Forum User
    Altair Employee
    edited March 2018

    Update

    My simulation was running for 6days and i got this error again.

    I updated the FEKO to 2018 and the error still exists.

    <?xml version="1.0" encoding="UTF-8"?>2018-03-30 (2).png

  • Madelé
    Madelé
    Altair Employee
    edited September 2018

    Hi mustaphos

     

    If you still running into this problem, you can try updating to FEKO 2018.1 or later. There were changes made to FEKO 2018.1 that should resolve these sporadic Intel MPI Hydra errors on parallel Windows systems.

     

    Kind regards

    Madelé

     

  • Israel Lopez
    Israel Lopez Altair Community Member
    edited November 2020

    Hello,

    I'm getting similar error with FEKO 2020.1.1. FEKO reports out of memory, but that's inaccurate. I have 756 GM of RAM in that computer, and my problem has 150,000 unknowns.

    I'm using MLFMM by the way.

  • Mel
    Mel Altair Community Member
    edited November 2020
    Israel Lopez said:

    Hello,

    I'm getting similar error with FEKO 2020.1.1. FEKO reports out of memory, but that's inaccurate. I have 756 GM of RAM in that computer, and my problem has 150,000 unknowns.

    I'm using MLFMM by the way.

    Please attach the OUT file.

    And if possible, the CFX file.

  • Mel
    Mel Altair Community Member
    edited December 2020

    @Israel Lopez 

    Please attach the OUT file.

    If you can, the CFX file too.

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