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Both solvers accumulated the periodic volume and the number of neighbors on the same geometry, the heat solver now does it only without a flow solver. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013UkNcoCEH8nFNrHWzhJCar
The periodic communication adds the neighbors of the periodic match to the owned points only, the halo copies kept the old count, which is used by the centered schemes. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013UkNcoCEH8nFNrHWzhJCar
The division by the pressure was applied to the running maximum instead of the pressure difference of each edge. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_013UkNcoCEH8nFNrHWzhJCar
Test casesFiles (configurations, histories, meshes, statistics, scripts) for each case: periodicBoundaries/counts. 2 MPI ranks, "develop" = 1. Flow with the weakly coupled heat equation: periodic pin array with a body force (mesh of
New test 2. Neighbors of the halo points: the existing test The folder 3. MSW sensor: only visible with triangles at the periodic boundary and a strong pressure jump there. Existing testsUnchanged history files, develop against this PR: Additional tests (Oct 7)Reproducers, configurations, numeric logs and scripts: stencils. Develop =
This extends the original tests above. General intersecting rotational pairs and full-suite solution/reference effects remain pending. Combined release checks: serial and OpenMP2 pass 10 cases / 3175 assertions; partitioned MPI2 and MPI2×OpenMP2 pass on both ranks (2334 / 2238 assertions). These are combined-source checks, not standalone builds of every branch. Complete branch CI and full regression/reference checks remain pending. |
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…and limiters (#2961) ## Proposed Changes This is one of **seven related periodic-boundary bug-fix PRs**. | PR | Scope | |---|---| | #2961 (this PR) | Rotational Jacobian, multigrid velocity rotation and limiters | | #2963 | Axis points, slip-wall normals and moving donor volumes | | #2964 | Periodic volumes, neighbor counts, sensors, stencils and coarse flags | | #2965 | Streamwise periodicity, auxiliary gradients and flamelet metadata | | #2966 | Inverse affine transforms in the parser and FEM | | #2968 | Diagnostics for unsupported periodic solver combinations | | #2969 | Translated wall-distance images | The other bug-fix PRs are drafts with their remaining validation and implementation limits documented. Their grouping does not imply a linear merge order; #2963 depends on this PR. The fully coupled implicit operator proposed in #2967 is a separate experimental enhancement. It has been closed and deferred because no overall benefit has been established and convergence/validation issues remain. This PR retains the existing implicit approximation. Three fixes for rotational periodic boundaries, one commit each. The test cases are in the comment below. - **Implicit runs:** the Jacobian block that a periodic point gets from its match was rotated on one side only. It is now rotated on both sides. - **Multigrid:** the coarse levels did not rotate the velocity, so the run did not converge. The velocity is now rotated on all levels. - **Limiters:** the limiters of the velocity components were rotated like a vector, but they are separate numbers. On the periodic boundary one velocity component became first order, and limiters could be negative. Each side now sends the velocity bounds and reconstruction increments in the frame of the other side, so each limiter uses the complete stencil. Nothing changes for a translation. New tests `periodic2d_no_limiter` and `periodic2d_multigrid`; `periodic2d` is now also in the MPI regression. Their x86 reference values pass in CI. Existing reference values that change: `aachen_turbine_restart`, `jones_turbocharger_restart` and `multi_interface` (rotational periodic, the Jacobian block), and the hybrid `periodic2d` (the Jacobian block and the limiters). The x86 periodic tests and the other changed cases pass in CI; the Jones restart residual references were refreshed from the serial, MPI and hybrid CI logs. The aarch64 references still need the CI runs. No conflict with #2945 and #2959. #2956 also changes the reference values of `jones_turbocharger_restart`; whichever is merged second takes them from the CI. ## Related Work - #652 added the present implementation of the periodic boundaries. - #1563 fixed the rotation in 2D and added the `periodic2D` case used here. - #1467, #763 and #1585 discuss the incomplete linear system at periodic points; this PR keeps the existing approximation. ## PR Checklist - [x] I am submitting my contribution to the develop branch. - [x] My contribution generates no new compiler warnings (try with --warnlevel=3 when using meson). - [x] My contribution is commented and consistent with SU2 style (https://su2code.github.io/docs_v7/Style-Guide/). - [x] I used the pre-commit hook to prevent dirty commits and used `pre-commit run --all` to format old commits. - [x] I have added a test case that demonstrates my contribution, if necessary. - [ ] I have updated appropriate documentation (Tutorials, Docs Page, config_template.cpp), if necessary. --------- Co-authored-by: rois1995 <rauxa1995@hotmail.it> Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com> Co-authored-by: Josh Kelly <81244680+joshkellyjak@users.noreply.github.com> Co-authored-by: Nijso <bigfootedrockmidget@hotmail.com>
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Proposed Changes
Periodic geometry was counted twice with weak heat, halo neighbor counts were stale, and intersecting or one-cell periodic directions lost stencil contributions. This PR corrects the volume/count bookkeeping and completes the affected sensors, Laplacians and least-squares stencils.
The geometry bookkeeping prevents the weak heat solver from adding periodic geometry twice, refresh halo neighbor counts and correct the MSW pressure sensor. Stencil communication completes counts, sensors, Laplacians and least-squares stencils at intersecting periodic pairs using shared-face weights. It also inherits boundary flags on coarse nodes and preserves opposite-face neighbors in a one-cell periodic direction.
Tests cover two/three translated pairs, diagonal edges, compressible/incompressible JST, MSW, primitive least squares, coarse flags and a one-cell BOX. The
inc_periodic_weak_heatregression checks flow/heat consistency. The existing MPIsbs_backward_stepreference change is explained in the testcase comment; further full-suite reference impact remains to be checked. General intersecting rotational pairs still need solution-level validation.Validation of the combined periodic source passes serial, partitioned MPI2, OpenMP2 and MPI2×OpenMP2 (10 cases / 3175 serial assertions). Individual branch CI and complete regression/reference checks are pending. Test configurations, meshes, logs and before/after values are in the testcase comment. New regression references are local x86 values and need CI confirmation.
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