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RI in SCF calculations

Considerable savings in CPU times are achieved with the RI technique for both Coulomb J and exchange K terms in SCF calculations, the RI-JK method [25], provided large basis sets are employed, e.g. TZVPP, cc-pVTZ, or cc-pVQZ. With rijk you get:
STATUS OF RI-OPTIONS:
    RI IS NOT USED
    Memory for RI:           200 MB
    Filename for auxbasis: auxbasis

 ENTER RI-OPTION TO BE MODIFIED
      m: CHANGE MEMORY FOR RI
      f: CHANGE FILENAME
  jkbas: ASSIGN AUXILIARY RI-JK BASIS SETS
     on: TO SWITCH ON  RI
 Use <ENTER>, q, end, or * to leave this menu
For an explanation of the menu items see Section 4.4.1. RI-JK calculations can be carried out with the program ridft.



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