WIP: Update ownership model to work in general forests and show tri-valent singular node fixup - #1250
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lroberts36 wants to merge 22 commits into
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WIP: Update ownership model to work in general forests and show tri-valent singular node fixup#1250lroberts36 wants to merge 22 commits into
lroberts36 wants to merge 22 commits into
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Yurlungur
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May 9, 2025
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| for (int point = 0; point < 2 * nblocks; ++point) { | ||
| nodes[point] = Node::create(point, {-std::sin(point * M_PI / nblocks) + xoffset, | ||
| -std::cos(point * M_PI / nblocks) + yoffset}); | ||
| } | ||
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| using edge_t = parthenon::forest::Edge; | ||
| for (int point = 0; point < 2 * nblocks; ++point) { | ||
| forest_def.AddBC( | ||
| edge_t({nodes[point % (2 * nblocks)], nodes[(point + 1) % (2 * nblocks)]})); | ||
| } |
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Are both nodes and edges required to define the forest? Or are you using nodes to define the edges?
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The forest is defined by a set of nodes, faces defined by an ordered set of four nodes, and boundary conditions on edges defined by a set of two nodes.
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@lroberts36 what's the status of this? |
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It is complete and working, but I need to go back and decide on if I like some of the interface choices. |
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PR Summary
Previously, the ownership model for shared elements was not updated to deal with general forests and non-trivial logical coordinate transformations between neighboring blocks. This PR inserts the necessary transformations to the ownership array so that everything is consistent.
Additionally, in the boundary communication example, we implement the fixup/internal boundary condition for nodal fields at tri-valent singular nodes in the forest as shown in the diagram below in the routine
FixTrivalentNodes2D.This seems to give reasonable results for communicating boundary coordinates on this box mesh:
grid_explosion.pdf
PR Checklist