Issues

• Verification spine: pull numerical-correctness verification (FD tangent + golden model + gates) to the front

  NumSim-Stack/numsim-codegen#90 · Filter by author petlenz opened on Jun 12, 2026

• Mixed-rank coupled LocalNewtonSystem (scalar + vector + tensor unknowns in one solve)

  NumSim-Stack/numsim-codegen#86 · Filter by author petlenz opened on Jun 10, 2026

• Local-Newton robustness: detect non-convergence + guard singular Jacobian (scalar + coupled)

  NumSim-Stack/numsim-codegen#85 · Filter by author petlenz opened on Jun 10, 2026

• Scalar-type abstraction in generated code (enable float / fixed-point / autodiff)

  NumSim-Stack/numsim-codegen#84 · Filter by author petlenz opened on Jun 9, 2026

• Reserve derived names (<sv>_residual / _jacobian / _out) against output/symbol collisions

  enhancement
  NumSim-Stack/numsim-codegen#79 · Filter by author petlenz opened on Jun 7, 2026

• Phase 4: value-based CSE for cross-pass cas-derived expressions

  enhancement
  NumSim-Stack/numsim-codegen#72 · Filter by author petlenz opened on Jun 4, 2026

• StateVariable IR ergonomics: Handle accessors, free types, Role tagging

  enhancement
  NumSim-Stack/numsim-codegen#61 · Filter by author petlenz opened on Jun 2, 2026

• revisit ‎examples/recipe_registry.h‎

  NumSim-Stack/numsim-codegen#49 · Filter by author petlenz opened on Jun 1, 2026
  1

• tensor_inv rank-4 emit (blocks on numsim-cas exposing the contraction-index pair)

  enhancement
  NumSim-Stack/numsim-codegen#43 · Filter by author petlenz opened on May 31, 2026
  2

• Cross-cutting — Debugging story for generated code (--emit-debug-comments, source maps, recipe REPL)

  enhancement
  NumSim-Stack/numsim-codegen#39 · Filter by author petlenz opened on May 31, 2026

• Cross-cutting — Generated-code performance story (CSE, inline hints, benchmark suite)

  enhancement
  NumSim-Stack/numsim-codegen#38 · Filter by author petlenz opened on May 31, 2026

• Phase 5 — MOOSE + Standalone state-variable + algorithmic-tangent wiring

  enhancement
  NumSim-Stack/numsim-codegen#37 · Filter by author petlenz opened on May 31, 2026
  1

• Phase 4 — Verification framework + material drivers + report generation

  enhancement
  NumSim-Stack/numsim-codegen#36 · Filter by author petlenz opened on May 31, 2026

• Phase 3b — Algorithmic tangent + Kuhn-Tucker lowering

  enhancement
  NumSim-Stack/numsim-codegen#35 · Filter by author petlenz opened on May 31, 2026
  1

• Phase 3a — Time integration + LocalNewton lowering

  enhancement
  NumSim-Stack/numsim-codegen#34 · Filter by author petlenz opened on May 31, 2026
  1

• Phase 2 — Material IR extensions (StateVariable, Equation, Constraint, LocalNewtonSystem)

  enhancement
  NumSim-Stack/numsim-codegen#33 · Filter by author petlenz opened on May 31, 2026
  1

• Phase 1.1 — Implement currently-stubbed emit cases

  enhancement
  NumSim-Stack/numsim-codegen#30 · Filter by author petlenz opened on May 31, 2026
  2

• Epic: NumSim constitutive-model compiler — Phase 0-6 roadmap

  enhancement
  NumSim-Stack/numsim-codegen#28 · Filter by author petlenz opened on May 31, 2026

• CI: add CPM source cache to avoid re-cloning numsim-cas every build

  enhancement
  NumSim-Stack/numsim-codegen#27 · Filter by author petlenz opened on May 21, 2026

• Consider MLIR as the lowering infrastructure for #18 (decision deferred)

  question
  NumSim-Stack/numsim-codegen#24 · Filter by author petlenz opened on May 21, 2026

• Pipe emitted files through clang-format at emit time (optional, opt-in)

  enhancement
  NumSim-Stack/numsim-codegen#23 · Filter by author petlenz opened on May 21, 2026

• Migrate emit sites from std::ostringstream to std::format

  enhancement
  NumSim-Stack/numsim-codegen#22 · Filter by author petlenz opened on May 21, 2026

• Adopt inja for backend file templating (eliminates ostringstream walls)

  enhancement
  NumSim-Stack/numsim-codegen#20 · Filter by author petlenz opened on May 21, 2026
  2

• Extract reusable C++ FEM-framework scaffolding (CxxFrameworkTarget + TypeMap + TmechBoundaryAdaptor)

  enhancement
  NumSim-Stack/numsim-codegen#19 · Filter by author petlenz opened on May 21, 2026

• Split Layer 2 into language-agnostic compile() + C++ render step (unlocks non-C++ backends)

  enhancement
  NumSim-Stack/numsim-codegen#18 · Filter by author petlenz opened on May 21, 2026