DFT Calculations converge ok in direct mode but not when integrals are stored incore

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Forum Vet

2:12:16 PM PDT - Thu, Apr 16th 2015
Cristián Please remove the line `semidirect memsize 1500000000 filesize 0` from your first input file, since 1) it has no effect on the SCF when CD basis set is used 2) it's used only when the starting guess is generated and, as you can see, it has the adverse effect of generating a poorer guess than the default one. My suggestion is not to play with the semidirect options, since -- as you can see -- can have unpredictable effects on the calculation accuracy