A full-precision signed-heat diagnostic route is prepared
The current in-memory trapped gyro-Landau fluid (TGLF) wrapper returns integrated fluxes but does not expose mode spectra. The next diagnostic therefore uses an original driver linked to the installed solver library. It writes signed heat flux separately for electrons, main ions and impurities, plus low-k totals, eigenvalues and heat spectra by field, wavenumber and mode at full precision.
The driver also has an independent synthetic writer fixture. It fills arrays directly and never calls the physical solver. This caught a runtime-library path omission before physics execution. Input checks found that the native parser spells shape parameters differently from the wrapper; the adapter maps those names while preserving every value.
| preparation evidence | result |
|---|---|
| synthetic checks, parsing and source quality | 55 focused checks pass in each mode, including 22 direct-output and settings checks; all 79 source modules pass typing; the compiled synthetic writer preserves signed species heat and passes total/low-k spectral parity without calling TGLFC-197 |
| direct physical heat or mode evidence | requires the prepared bounded run |
The report preserves tiny negative numbers, impurity cancellation and backend differences. Native spectral quadrature is compared with integrated heat in the same declared units. Eigenvalues from the native sheared double-pass algorithm can describe its unsheared first pass; they are not automatically a mode identity or an independently certified convergence result.
The owner authorized continued M4 runs shorter than six hours (OQ-33). Each request still has a frozen package, an explicit purpose and allocation, checks, an announced submission and native accounting. This compute permission changes no physics contract or acceptance threshold. The diagnostic stays separate from training, normalization and smoke fixtures. It advances no coupled trajectory.
The current model and guard remain selected, and K-030 stays open. Reference admissibility and formal candidate temperature acceptance remain unresolved. No artifact synchronization is authorized.
What’s next. Collect the bounded diagnostic, audit its signed channels and spectra, then review whether the evidence identifies a justified reference remedy.
Technical details → Verification › direct heat diagnostic route
Decisions → OQ-32 · OQ-33