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29 LOCAL CORRELATION TREATMENTS 210<br />

SAVORB=record<br />

DOMONLY=value<br />

DSTMLT=level<br />

INTERACT<br />

Parameters for energy partitioning:<br />

IEPART=value<br />

EPART=cutoff<br />

NPASEL options) in order to use another domain criterion. If localized<br />

orbitals are found in the orbital record, but the type does not coincide,<br />

the orbitals are again localized according to method and used<br />

in the calculation.<br />

Allows the localized and projected orbitals to be saved in record=name.ifil<br />

for later use (e.g. plotting). The two orbital sets are stored in the same<br />

dump record and can be restored at later stages using<br />

ORBITAL,record,[TYPE=]LOCAL or<br />

ORBITAL,record,[TYPE=]PROJECTED, respectively.<br />

If value> 0 only domains are made, but no energy is computed. This<br />

can be used to check and save the domains for later use.<br />

Determines the expansion level of the multipole expansion of distant<br />

pairs (e.g. 1 means dipole approximation, 2 quadrupole approximation<br />

and so on). The default for MULTP is 3.<br />

Automatically determine individual molecules in a calculation and set<br />

appropriate pair lists for computing interaction energies. See section<br />

29.9.8 for more details.<br />

enables/disables energy partitioning.<br />

iepart=0: Energy partitioning is disabled.<br />

iepart=1: Energy partitioning is enabled.<br />

iepart=2: Energy partitioning is enabled. Additionally, a list of all<br />

pair energies and their components is printed.<br />

Cutoff parameter to determine individual monomers in a cluster (i.e.<br />

centre groups). Should be somewhat larger than the largest intramolecular<br />

bond length (given in a.u.).<br />

Miscellaneous options:<br />

SKIPDIST=skipdist<br />

ASYDOM=jiterm<br />

Test-parameter. Its value should only affect the efficiency but not influence<br />

the results.<br />

skipdist=-1: Weak and distant pairs are set to zero after MP2 but are<br />

not eliminated from the pair list and not skipped in any loop.<br />

skipdist=0: No pairs are deleted from pair list, but weak and distant<br />

pairs are skipped in the loops were appropriate.<br />

skipdist=1: Very distant pairs are neglected from the beginning. Distant<br />

pairs are eliminated after MP2.<br />

skipdist=2: As skipdist=1, but also weak pairs are eliminated after<br />

MP2.<br />

skipdist=3: As skipdist=2, but distant pairs are eliminated from the<br />

operator list in case of LMP2 with multipole approximations for distant<br />

pairs. This is the default.<br />

Experimental test parameter. Enables the use of asymmetric domains<br />

for distant pairs. The asymmetric domain approximation supplements<br />

the multipole approximation for distant pairs, as it suppresses the<br />

treatment of configurations for which no integrals can be computed<br />

by multipole expansion. This leads to computational savings and improved<br />

numerical stability.<br />

jiterm=0: Disable asymmetric domains.<br />

jiterm=-1: Enable asymmetric domains (default).

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