ABACUS3.10.1 P100GPU Fe2/Ni2O2 magnetism

Readactual reference data: bash analyze.sh
Full12condition serial1GPUworkflow: sbatch submit.slurm
1MPI/1thread/GPUdouble;GNU13.3,HPCX2.50/OpenMPI5.0.10rc2,CUDA12.8,OpenBLAS0.3.30.
Fiveprimary workflows: FM/AFM, fixedtotalspin, noSOCnoncollinearrotation, matchedfullyrelPPSOCswitch, NiO+U. Numericparametercontrols/replays notnewindependentproperties.
Twoanalysistools: spin-density/Mulliken integrals; native5x5Hubbardoccupation analysis.
Coarse3x3x3 fixedgeometry teaching only, scf1e-6. No convergedmagneticphasediagram,anisotropy orcalibratedU claim.
Upstream3.10.1 intentionally rejects sc_mag_switch; twoexpectedguardprobes keptprivate andnotcounted. No localconstraint resultprovided; nupdown fixes onlytotalspin.
