AIDA-AREPO Validation Summary

LEV1: DMO Validation

Snapshot 57, z~0.757

Comparison setup

• Left: AIDA-AREPO CDM-only result

• Right: Original TNG-100-3-Dark result

Conclusion: The gravity-only CDM run shows good agreement with the original TNG-100-3-Dark result.

Status: Passed

LEV2: SIDM Module Validation

SIDM Test, Snapshot 38, z~1.604

Test setup

• Constant self-interaction cross section: $\sigma /m=1$$\sigma/m = 1$

• Purpose: sanity check of the SIDM implementation

Conclusion: The SIDM module behaves as expected in this test.

Running log looks great, time-steps obviously more than CDM:

• to z~1.587

  • CDM: 4758 steps

  • SIDM: 36947 steps

No obvious abnormal features are found.

Status: Passed (at least for constant SIDM)

LEV3: Full-Physics Validation

Snapshot 16, z~5.228

Comparison setup

• Left: AIDA-AREPO full-physics result

  • Top: dark matter

  • Bottom: gas

• Right: Original TNG-100-3 full-physics result

  • Top: dark matter

  • Bottom: gas

Sampled position difference using the same particle IDs

Snapshot 28, z~2.577

Group Catalog at Snapshot 28

Note: Different MPI/rank configurations may introduce small-scale stochastic differences, especially in the full-physics run. However, the overall agreement remains acceptable for this validation level.

Conclusion: The full-physics implementation reproduces the original TNG-100-3-FP results at an acceptable level.

Status: Passed