$COSGMS group                              (optional)
 
    The presence of this group in the input turns on the
use of the conductor-like screening model (COSMO) with
molecular shaped cavity for closed and open shell HF, DFT,
and MP2.  Open shells may be high spin-restricted or any
sort of spin-unrestricted case.  The energy and/or the
gradient can be computed for each of these.
 
    The implementation of the COSMO cavity has a limit of
about 150-200 atoms.  Like other limits in GAMESS, this can
be raised according to directions in the Programmer's
Reference.
 
 
EPSI   = the dielectric constant, 80 is often used for H2O
         This parameter must be given, except for the
         perfect conductor approximation (see PRFCND).
 
PRFCND = perfect conductor approximation, sets EPSI
         equal to infinity.  Relevant only if EPSI is
         not given. (default=.FALSE.)
 
COSRAD = the multiplicative factor for the van der Waals
         radii used for cavity construction. (default=1.2)
 
NSPA   = the number of surface points on each atomic
         sphere that form the cavity. (default=92)
 
DISEX  = parameter for the refinement of crevices
         (default=10.0D+00)
 
OUTCHG   select the method for the correction of the
         outlying charge error (OCE).
       = DMULTI sets the multipole expansion method.
       = DBLCAV sets the double cavity method (default).
 
COSWRT = flag to generate the .cosmo output file, used as
         input to the COSMO-RS program, from the company
         COSMOlogic.  A replacement output source file is
         needed (full version of cosprt.src).  Users need
         to sign a special license agreement to enable this
         option, see http://ocikbws.uzh.ch/gamess
         COSWRT forces PRFCND=.T. and requires GBASIS=KTZVP
         and DFTTYP=BP86, because COSMO-RS is parametrized
         for use only with this specific setup.
         (default=.FALSE.)
 
DCOSMO = flag to use the DCOSMO-RS method.  This requires
         reading in a supplementary .pot file, obtained
         by processing COSWRT's .cosmo output with the
         COSMO-RS software.  (default is .FALSE.)
 
COSBUG = flag to turn on debugging printout.
 
     Additional information on the COSMO model can be
     found in the References chapter of this manual.
 
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