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Tests
ADAM uses a multi-level testing strategy to ensure correctness across backends and configurations.
Unit Tests
Finite difference operator tests with trigonometric analytical solutions:
bash
# Build a specific test
fobis build --mode test-fdv-gradient-trigonometric-gnu
fobis build --mode test-fdv-divergence-trigonometric-gnu
fobis build --mode test-fdv-curl-trigonometric-gnu
fobis build --mode test-fdv-laplacian-trigonometric-gnu
fobis build --mode test-fdv-operators-trigonometric-gnu
fobis build --mode test-fdv-operators-step-gnu
# Run with MPI
mpirun -np <N> exe/<test_executable>Regression Tests
The PRISM regression suite is the structural-change baseline for the Maxwell/EM solver: CI-tuned two-rank cases run on both the CPU and FNL (GPU) backends, compared tolerance-aware against committed field-digest and residuals goldens. It covers the forest multi-realm seam machinery (α/β cadence, inter-realm 1:1 mirror seams), the intra-realm 2:1 AMR seams (with check.sh-driven div(B) oracles), reflux, and the fWLayer. See the Forest guide for the seam machinery itself.
Integration Tests
NASTO integration tests with known CFD benchmarks:
| Test | Description |
|---|---|
| Sod-X | 1D Riemann Problem of Sod along X axis |
| Sod-Y | 1D Riemann Problem of Sod along Y axis |
| Sod-Z | 1D Riemann Problem of Sod along Z axis |
| Shock-Sphere | Shock-sphere interaction simulation |
Compiler Testing Matrix
All changes affecting core numerics or parallel logic must pass:
- GNU gfortran — baseline CPU, strict bounds checking
- NVIDIA nvfortran — GPU targets (CUDA Fortran, OpenACC)
- Intel ifort/ifx — aggressive optimization, vectorization reports
Use -fbounds-check -fcheck=all (GNU) or -check all -traceback (Intel) during development.