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Avoid some heavy instructions in xtb/hamiltonian #1299

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Merged
merged 3 commits into from
Jun 8, 2025

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@foxtran foxtran commented May 31, 2025

This patch slightly speeds up evaluation of build_SDQH0, build_dSDQH0, build_dSDQH0_noreset routines by avoiding pow calls in shellPoly and dshellPoly routines with GCC (Intel compilers use constant propagation here) and sometimes useless divisions in intgrad.f90.

@thfroitzheim thfroitzheim merged commit 90980d6 into grimme-lab:main Jun 8, 2025
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