Default FLU_INT_SCHEME based on SUPPORT_SPECTRAL_INT #500
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hyschive
approved these changes
Dec 18, 2025
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@vivi235711 Thanks for the contribution and for providing evidence to support this change! |
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When enable
SUPPORT_SPECTRAL_INT, the defaultOPT__FLU_INT_SCHEMEandOPT__REF_FLU_INT_SCHEMEwould be changed fromINT_CQUARtoINT_SPECTRALif model =ELBDM.The spectral interpolation is more conservative when running FDM cosmogical simulation. For same initial condition and same input parameter, the
Mass_Psi_RErrare:INT_SPECTRAL : -4.0195863e-03
INT_CQUAR : 7.2203990e-02
Furthermore, when the resolution is insufficient to cover all areas, the density profile of the halo may not be the same. However, spectral interpolation can yield halos of the same mass as sufficient resolution, suggesting that spectral interpolation may be a better interpolation scheme.
