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QF Solver 0.2.7

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@emptiesvoid-cloud emptiesvoid-cloud released this 06 Sep 07:34
· 296 commits to main since this release
v0.2.7
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QF Solver 0.2.7

QF Solver 0.2.7 is a major consolidation release focused on qualification, scalability, solver robustness, and reproducible verification.

Highlights

  • Extended qualification coverage for TET4, TET10, HEX8 and HEX20
  • Added and consolidated linear buckling analysis
  • Added an initial frictionless node-to-triangle contact implementation
  • Improved WEDGE6 support, including bounded modal qualification
  • Strengthened J2 small-strain plasticity workflows
  • Improved static, modal, harmonic and transient analysis routes
  • Extended PETSc/MPI distributed solving
  • Demonstrated large-scale runs up to approximately 10.1 million DOFs
  • Added stronger qualification matrices, evidence packs and reproducibility records
  • Improved solver diagnostics, determinism checks and failure reporting
  • Expanded automated verification and regression coverage

Large-scale solving

The 0.2.7 validation campaign includes distributed PETSc/MPI runs at approximately:

  • 1.0M DOFs
  • 3.0M DOFs
  • 5.0M DOFs
  • 10.1M DOFs

These results demonstrate the current distributed linear-solving capability of QF Solver under the documented configurations.

They should not be interpreted as universal performance or scalability claims across all element types, nonlinear workflows, hardware configurations or mixed meshes.

Qualification

The release introduces a more explicit capability classification:

  • QUALIFIED_BOUNDED
  • EXPERIMENTAL
  • NOT_QUALIFIED

Qualification is intentionally limited to the combinations for which sufficient numerical evidence is available.

Key solid-element routes based on TET4, TET10, HEX8 and HEX20 now have bounded qualification coverage.

Some capabilities remain experimental, including parts of the shell, WEDGE6 static, contact and mixed-element workflows.

Verification and validation

0.2.7 significantly expands the verification infrastructure with:

  • numerical baselines
  • regression tests
  • deterministic replay checks
  • residual, energy and equilibrium checks
  • external solver correlations where applicable
  • machine-readable qualification records
  • reproducible evidence linked to release commits

The objective is to clearly distinguish between a feature being implemented, tested and actually qualified.

Current limitations

The following areas remain outside the fully qualified scope of this release:

  • general frictional contact
  • production-grade finite sliding
  • large-strain plasticity
  • general nonlinear HPC scaling
  • mixed TET/WEDGE/HEX production workflows
  • WEDGE15 and PYRAMID5
  • complete shell qualification
  • GPU solving

These limitations are documented intentionally and will guide future releases.

Compatibility

QF Solver 0.2.7 remains focused on Python-based structural finite-element analysis while progressively extending its PETSc/MPI backend for larger models.

Users upgrading from earlier 0.2.x releases should consult the changelog and qualification documentation before relying on newly introduced analysis routes.

Full changelog and qualification evidence are available in the repository documentation.

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