feat: [WIP] Reconstruct neighbour mesh locally 2 #314
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- Before, we only are able to send the whole mesh structure - For performance reasons, we should only send a part of it - So here are the correspondinf functiosn that send only cells[id] of m_subdomain - TODO : delete update_mesh function - TODO : factorize the two functions for cells[id] and subdomain. It is maybe more complex
- Previously, we send the whole mesh structure - But it is not needed. - Here are the modified sends reduced in size that improve the performance
- Add definition - Add template mesh_id_t properly
- Add non-const to be able to write with operator[] - TODO : is it preferable to use a setter to preserve the [] as const ?
- Before: we send/recv the neighbourhood cells_and_ghosts - But we can avoid MPI comms by reconstructing it locally - At this point, the advection-2d case works fine
- I suggest decompose the mesh_id steps in subfunctions - This is now easier to reconstruct the subdomain mesh locally !!
- For each subdomain, we reconstruct cells_and_ghosts_ and reference and prijection. - TODO : there is a segfault for the periodic one.
- For now, lets check without periodic
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At this point, this PR works at least for advection-2D.
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- Now only for the rank mesh - TODO : resolve the issue when launched for the neighbour mesh
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Description
This PR is based on #307 so please review the PR#307 before
Related issue
How has this been tested?
advection-2d
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