Parallel grid port to master additions

added 3 commits

• 5e801ebb - Partially port parallel grid
• 9d7b467b - [tests] Port parallel grid test
• fbfad683 - [idgrid] Implement subEntities for entities of all codims

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marked this merge request as ready

@simon.praetorius I'm also still getting a segfault when trying this with FoamGrid.

I parallel the element iterator seems to iterate past the enditerator. On one process it works.

Seems to come from Hierarchic iterator, there is no segfault if the grid is not refined (which was the case in my initial test). I'll first check if hierarchic iterator works in foamgrid or if there is a bug.

I also tried to reproduce the error in my case. One error happens inside the communicator, but it is really hard to debug. It is not a segfault, but an assert that is raised. But I don't understand what is wrong or what I might have done wrong.

However, the GlobalIndexSet works fine (on a non-refined grid)

I fixed the hierarchic iterator, the wrong constructor was called. I wonder why you didn't get this error? Maybe you used a different partitioner not the default ALUGridPartitioner? Ah maybe on a non-refined grid this worked...

Actually, I have not changed anything about the partitioner. Just used the defaults. Then I got an error that METIS is not enabled in ALUGrid and I had to do this. Afterwards, at least the partitioning went fine.

ah ok. I didn't want to enable/install metis so I just changed to the space-filling curve partitioner. I guess the hiearchic iterator only failed for refined grids.

With the newest commits I have now a working example with globally refined Foamgrid<1,3>, finite volumes and AMG+BiCGSTAB that works.

added 1 commit

• f904847f - [parallel][mpaccess] Use override and update interfaces

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• b8eeb429 - Cleanup parallelgrid iterator
• 926633b1 - [parallelgrid] Use space filling curve partitioner instead of metis

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added 3 commits

• e53c478a - [parallelgrid] Remove entitypointer interface
• c2d73bb5 - [parallelgrid] Overload hierarchic iterator interface for codim-0-entity to...
• bb03b4ec - [parallelgrid][partitioner] Use more range-based for loops

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• 61b1d52a - [gitignore] Add some useful things to gitignore

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added 2 commits

• d97bb6e7 - [parallelgrid] Use constexpr function to avoid internal compiler error with gcc9.3
• 198bd52f - [parallelgrid] Make entity default-constructible

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added 2 commits

• 92f836a2 - [grid] Fix entityseed for parallel grid
• 665fbf2e - [parallelgrid] count -> subEntities

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• f1e6f722 - [parallel][cleanup] Use more C++11
• 30b58783 - [parallelgrid] Implement InteriorBorder_InteriorBorder_Interface communication for elements as noop

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The CI doesn't seem to be enabled for forks

added 1 commit

• ea226eca - [parallelgrid][comm] Use more descriptive local variable name 'codim'

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superseded by !4

closed