Omar SobhandClaude Opus 5.5 e80b122854 R4-m: RTX_FSI2O_NODE_CSV — per-node accepted load and displacement along the flag every coupled step ...

Each wetted node's (dx, dy, fx, fy) grouped bottom / tip / top (sidecar
<path>.nodes.csv: group, node, reference x, y, arc length) plus the
centreline uy at s = 1/4 (mean of the two straddling nodes) and 1/2.
Default off; gate on the R4-l line slice 6.0 -> 6.2 s (CPU V-cycle,
floor 7.5e-8, rtol 1e-3): main vs branch knob-off vs knob-on march CSV
and step CSV byte-identical (md5 70dcf484..., dd535386...); the node
sums equal the step CSV's fx_nodal / fy_nodal.

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

2026-09-24 22:36:17 -05:00

..

march.rs

PERF-2: red-black symmetric Gauss–Seidel smoother behind a knob (MgSmoother::RedBlack; default lexicographic = the recorded regime, bit-identical) — red/black cell lists per level, the symmetric pair red,black,black,red, the operator cache keyed on the smoother; EmbeddedParameters::poisson_smoother, harness knobs RTX_FSI2O_MG_RB (overset) and RTX_FSI2_MG_RB (embedded, the noise probe); pin: solves the masked problem to the same stop, agrees with lexicographic to 2e-12, cached = uncached bit for bit

2026-09-15 23:48:55 -05:00

mod.rs

R4-m: RTX_FSI2O_NODE_CSV — per-node accepted load and displacement along the flag every coupled step

2026-09-24 22:36:17 -05:00

node_csv.rs

R4-m: RTX_FSI2O_NODE_CSV — per-node accepted load and displacement along the flag every coupled step

2026-09-24 22:36:17 -05:00

overset_march.rs

R4-m: RTX_FSI2O_NODE_CSV — per-node accepted load and displacement along the flag every coupled step

2026-09-24 22:36:17 -05:00

overset.rs

R4-i + R5 design pass: RTX_FSI2O_REGEN_ONCE (one patch regeneration per coupled step; dies at step 0 — the registered test is void), the step CSV's subit/dres_y/dres_norm/fx_nodal/fy_nodal columns; the cut predictor's per-face term probe (enable_term_probe) and the curved instrument's exact side/wall viscous integrals — the static convex wall's flat residual is the viscous closure's first-order relative accuracy on O(1/h) fluxes

2026-09-22 07:39:54 -05:00

replay.rs

P5-3 energy discriminator: prescribed motion on the overset fluid alone — fsi2_harness/replay.rs (a march's saved instants as cubic-Hermite kinematics with the saved velocities as slopes, the prescribed wall velocity the interpolant's exact derivative; a smooth ramp) with a knot/derivative pin, and fsi2_overset_prescribed_motion (RTX_FSI2O_REPLAY=dir: replay from RTX_FSI2O_REPLAY_T0 on RTX_FSI2O_LOAD's rigid state at any ny; per-step CSV of tip uy, drag, lift, the fluid's power on the flag Σ F·ḋ, wall flux vs area rate; window summary) — at a fixed motion, does the fluid's work per cycle grow with h the way the coupled amplitude ladder (91.2 → 94.8 → 98.0 mm) does?

2026-09-09 13:13:59 -07:00

rescue.rs

test(rtx-fsi): coupling rescue rung C (CRESCUE_COARSE, burst-local s=2 coarsening) + INCTRACE per-step increment dump — both default off

2026-09-02 22:09:49 -07:00