Which Tapenade build do you use to regenerate reverse-mode AD? Recent develop builds crash on sa.F90

[yixin-cfd]

Hi, I'm trying to regenerate the AD code with make -f Makefile_tapenade ad_reverse and Tapenade crashes. I'd like to know which exact Tapenade build the team
uses, since the committed AD files don't match what current builds produce.

The committed reverse files were generated with an older build. The header of src/adjoint/outputReverse/sa_b.f90 (and the others) says:

! tapenade 3.16 (develop) - 22 aug 2023 15:51

With recent develop builds, ad_reverse crashes. I tested two:

• 3.16 (develop) - 25 Feb 2026 (rev 3.16-v2-1304)
• 3.16 (develop) - 2 Jun 2026 (rev 3.16-v2-1337)

Both throw the same uncaught exception during the reverse TBR dependency analysis:

Uncaught exception - Index 71 out of bounds for length 70
java.lang.ArrayIndexOutOfBoundsException: Index 71 out of bounds for length 70
at fr.inria.tapenade.utils.BoolVector.set(BoolVector.java:167)
at fr.inria.tapenade.analysis.ADTBRAnalyzer.fixpointDependents(ADTBRAnalyzer.java:3340)
...

I bisected the -head list down to the trigger. Forward mode works fine. Reverse mode works for every routine except two in src/turbulence/sa.F90 — running
either one alone (with all input files present) reproduces the crash:

• sa%saSource(...) → Index 71 out of bounds for length 70
• sa%saViscous(...) → Index 70 out of bounds for length 70

turbAdvection and saResScale in the same file are fine, so the Tapenade binary itself
is healthy — the ADflow sa.F90 input triggers a bug in these develop builds.

Questions:

1. Which exact Tapenade build do you use to regenerate the reverse AD code? Is the 22 Aug 2023 develop build still the recommended one, and is it available
   somewhere?
2. Is there a known-good Tapenade version pinned for ADflow, beyond TAPENADE_VERSION: "3.16" in the Azure pipeline?

Environment: Ubuntu 24.04, OpenJDK 21.0.11, gfortran 13.3.0, ADflow at commit 8155e98.

Thanks!

[yixin-cfd]

Is there a Docker image that has Tapenade installed and can perform ad_reverse? The Docker images I downloaded from mdolab are mdolab/public:u24-gcc-ompi-latest and mdolab/public:u24-gcc-ompi-stable, and neither of them has Tapenade configured.

[yixin-cfd]

The variables real(kind=realType) :: cv13, kar2Inv, cw36, cb3Inv only need to be carefully redefined and correctly assigned inside saSource, saViscous, and saSolve to fix this problem.