feat: FP stability CI (Verrou) + reduced-energy scheme + HLLC xi-factor fix#1403

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sbryngelson wants to merge 24 commits intoMFlowCode:masterfrom

sbryngelson:fp-stability

Commits on May 6, 2026

feat: add fp-stability command for Verrou-based FP instability testing
sbryngelson
committed
ci: add weekly FP stability workflow using Verrou
sbryngelson
committed
ci: trigger fp-stability on every push
sbryngelson
committed
ci: remove concurrency group from fp-stability
sbryngelson
committed
style: collapse multi-line raise ValueError to satisfy CI ruff formatter
sbryngelson
committed
feat: add sod_standard baseline, enlarge cases, run dd_sym on failure
sbryngelson
committed
feat: add float proxy, VPREC sweep, dd_line, air_water_interface case
sbryngelson
committed
fix: add missing air_water_interface case input files
sbryngelson
committed
fix: add alpha(2) for both patches in air_water_interface pre_process.inp
sbryngelson
committed
fix: add reduced-energy (E-tilde) scheme for model_eqns=2 FP stability
sbryngelson
committed
ci: increase fp-stability case step counts to 50 for better sweep coverage
sbryngelson
committed
revert: remove reduced-energy (E-tilde) scheme — moving to separate PR
sbryngelson
committed
fix: protect HLLC xi-factor denominators from division by zero with sgm_eps
sbryngelson
committed
ci: loosen water_stiffened threshold to 1e-8 until Etilde scheme merges
sbryngelson
committed
ci: GitHub step summary, file annotations, and float-proxy metric in fp-stability
sbryngelson
committed
ci: remove pass/fail markers from VPREC sweep table
sbryngelson
committed
fix: move cons.unindent into finally block; use MFC_ROOT_DIR in _find_binary
sbryngelson
committed
ci: always run dd_line to surface FP hotspots on every run
sbryngelson
committed
ci: add bubble_rp and low_mach FP cases; fix dd threshold to use median
sbryngelson
committed
fix: bubble_rp pre_process.inp (remove bubble_model); loosen low_mach threshold to 1e-7
sbryngelson
committed
fix: loosen bubble_rp threshold to 1e-8 (RP ODE cancellation observed ~2e-9)
sbryngelson
committed

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feat: FP stability CI (Verrou) + reduced-energy scheme + HLLC xi-factor fix#1403

feat: FP stability CI (Verrou) + reduced-energy scheme + HLLC xi-factor fix#1403
sbryngelson wants to merge 24 commits intoMFlowCode:masterfrom
sbryngelson:fp-stability

Commits on May 6, 2026

feat: add fp-stability command for Verrou-based FP instability testing

ci: add weekly FP stability workflow using Verrou

ci: trigger fp-stability on every push

ci: remove concurrency group from fp-stability

style: collapse multi-line raise ValueError to satisfy CI ruff formatter

feat: add sod_standard baseline, enlarge cases, run dd_sym on failure

feat: add float proxy, VPREC sweep, dd_line, air_water_interface case

fix: add missing air_water_interface case input files

fix: add alpha(2) for both patches in air_water_interface pre_process.inp

fix: add reduced-energy (E-tilde) scheme for model_eqns=2 FP stability

ci: increase fp-stability case step counts to 50 for better sweep coverage

revert: remove reduced-energy (E-tilde) scheme — moving to separate PR

fix: protect HLLC xi-factor denominators from division by zero with sgm_eps

ci: loosen water_stiffened threshold to 1e-8 until Etilde scheme merges

ci: GitHub step summary, file annotations, and float-proxy metric in fp-stability

ci: remove pass/fail markers from VPREC sweep table

fix: move cons.unindent into finally block; use MFC_ROOT_DIR in _find_binary

ci: always run dd_line to surface FP hotspots on every run

ci: add bubble_rp and low_mach FP cases; fix dd threshold to use median

fix: bubble_rp pre_process.inp (remove bubble_model); loosen low_mach threshold to 1e-7

fix: loosen bubble_rp threshold to 1e-8 (RP ODE cancellation observed ~2e-9)

Commits on May 7, 2026

ci: use float-mode dd bisection (deterministic, nruns=1) instead of random

fix: dd_run.sh must honour VERROU_ROUNDING_MODE=nearest for reference run

feat: add cancellation detection, MCA sig-bits, and float-max checks to fp-stability