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Parallel mode stopped working

OpenLB – Open Source Lattice Boltzmann Code Forums on OpenLB Bug Reports Parallel mode stopped working

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  • #1874
    KlausB
    Member

    Hello,

    I ran some examples a couple of days ago and managed to run them in parallel without problems.

    Today I wanted to look at 3D cases like cylinder3d and found that no case, even the ones I looked at a couple of days ago would run in parallel.

    Compilation works fine and other programs using mpi work fine too.

    Re-installing everything from scratch didn’t help either.

    I am using Ubuntu 14.04.

    Any ideas what could cause the problem?

    Klaus

    #2474
    mathias
    Keymaster

    Dear Klaus,

    please follow the instructions in our user guide, check if the options in Makefile.inc are set correctly. Further, you may consider to come to our spring school in March 2017 which would give you a good start into OpenLB.

    Best
    Mathias

    #2478
    albert.mink
    Moderator

    Hi Klaus,

    it sounds like you have compiled OpenLB wrong, because other programs are working fine with mpi.
    Please ensure yourself that you clean the libraries (created some days before) by

    make cleanbuild

    Then check the Makefile.inc, see UserGuide http://optilb.com/openlb/wp-content/uploads/2016/03/olb_ug-1.0r0.pdf and compile the application again.

    Regards,
    Albert

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