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<div class="">Dear Dune people,</div>
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<div class="">I am currently working on a project to update a home made Dune module (peits) to the newest Dune modules. Peits was previously running fine with Dune modules (common, fem, grid, alugrid, geometry) v2.3.</div>
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<div class="">Now I am trying to update to the same Dune modules v2.6. I have managed to compile (under GNU compiler) and run serially Peits with Dune2.6 but the issue appears when I run in parallel using MPI. This occurs when the gridPtr is called, </div>
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<div class="">And trying to create the grid from a dgf file, especially the assertion:</div>
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<div class=""><a href="https://gitlab.dune-project.org/core/dune-grid/blob/master/dune/grid/io/file/dgfparser/gridptr.hh#L281" class="">https://gitlab.dune-project.org/core/dune-grid/blob/master/dune/grid/io/file/dgfparser/gridptr.hh#L281</a></div>
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<div class="">Basically, what I have narrowed down is:</div>
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<li class="">The MPI rank 0 runs fine. It fetches all parameters from files, calls the DGFGridFactory, initializes it etc.</li><li class="">The MPI rank 1 comes to the same point but I have checked that the initialisation of the DGFGridFactory is not setting the necessary parameters the same way, I.e. the elParam_ size is set to 0 (whereas ~57000 in MPI rank 0) causing the above assertion
to fail.</li></ul>
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<div class="">I wanted to know if there is a dedicated procedure to create a grid in parallel which I am missing at this point. Could you advise on this issue ?</div>
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<div class="">That would be really helpful.</div>
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<div class="">Kind regards,</div>
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Dr. Roland Guichard </div>
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Research Software Engineer</div>
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UCL-RITS</div>
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Internal Extension: 86947</div>
External Number: 02031086947
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