Refactor DeltaSpin step 2: add Tests and refactor - #7883

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mohanchen:2026-08-30-line1

Commits on Aug 30, 2026

Test: add DeltaSpin integration tests with force/stress (PW + LCAO, nspin=2/4)
abacus_fixer
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3a96cd7
Refactor DeltaSpin, steps 1-2: extract ScState and solver-independent init
abacus_fixer
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c4e9da6
Refactor DeltaSpin, step 3: extract LCAO magnetic-moment path to free functions
abacus_fixer
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6b52e0e
Fix CUDA build: qualify tpiba via state_ in update_psi_charge_pw_gpu
abacus_fixer
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c49c67b
Refactor DeltaSpin, step 4: encapsulate PW subspace cache in SubspaceCache
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592e7d1
Refactor DeltaSpin, step 5: move PW implementation back to module_deltaspin
abacus_fixer
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dae8f04

Commits on Aug 31, 2026

tests/03_NAO_multik/scf_deltaspin4: relax per-case threshold for known chaotic stress
abacus_fixer
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2178b2d

Commits on Sep 1, 2026

remove deltaspin pw tests on GPU
abacus_fixer
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0275246