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MMPDE mover silently does nothing on graded meshes (partition-dependent area floor)

bugSomething isn't workingSomething isn't working

Status: Open.

#419 In underworldcode/underworld3;

· lmoresi opened on Jul 25, 2026

Repeated rotated free-slip Stokes solves rebuild solver state and grow RSS until OOM

Status: Open.

#417 In underworldcode/underworld3;

· gthyagi opened on Jul 25, 2026

sympy.Max/Min(UWexpression, plain number) crashes at construction: AttributeError '_prec'

Status: Open.

#415 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

Curved-boundary P2 VERTEX flux/traction values converge only slowly — document and steer consumers to midpoint/fitted quantities

Status: Open.

#414 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

boundary_flux: 2D P1 traces crash with a bare KeyError in the lumped line-mass assembly

Status: Open.

#413 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

compute_volume_residual_fields / boundary sibling still strip Dirichlet values (the #407 fix was applied to one of three duplicated variants)

Status: Open.

#411 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

Time-dependent Dirichlet BCs are broken in solve(): essential values inserted at PETSC_MIN_REAL, mesh.t kernels see -1.8e308

Status: Open.

#410 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

boundary_flux 3D assembly gathers the full global boundary onto every rank (memory scaling)

Status: Open.

#408 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

Empty-rank support, layer 2: evaluate/points_in_domain, radii/centroid reductions, gather_data NaN-stripping

Status: Open.

#405 In underworldcode/underworld3;

· lmoresi opened on Jul 24, 2026

Finish rotated free-slip prescribed-normal datum: wire FreeSurface consistent solve, pyx API, parallel, nonlinear

Status: Open.

#403 In underworldcode/underworld3;

· lmoresi opened on Jul 23, 2026

FreeSurface: composition transport is level-set-only; can't drive temperature convection without private access

Status: Open.

#402 In underworldcode/underworld3;

· lmoresi opened on Jul 23, 2026

3D NVB refinement count diverges across PETSc patch versions from an identical base mesh (5198 vs 4816)

Status: Open.

#387 In underworldcode/underworld3;

· lmoresi opened on Jul 22, 2026