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root/OpenMD/trunk/src/UseTheForce/notifyCutoffs.F90
Revision: 507
Committed: Fri Apr 15 22:04:00 2005 UTC (20 years, 3 months ago) by gezelter
File size: 4045 byte(s)
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# User Rev Content
1 gezelter 246 !!
2     !! Copyright (c) 2005 The University of Notre Dame. All Rights Reserved.
3     !!
4     !! The University of Notre Dame grants you ("Licensee") a
5     !! non-exclusive, royalty free, license to use, modify and
6     !! redistribute this software in source and binary code form, provided
7     !! that the following conditions are met:
8     !!
9     !! 1. Acknowledgement of the program authors must be made in any
10     !! publication of scientific results based in part on use of the
11     !! program. An acceptable form of acknowledgement is citation of
12     !! the article in which the program was described (Matthew
13     !! A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher
14     !! J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented
15     !! Parallel Simulation Engine for Molecular Dynamics,"
16     !! J. Comput. Chem. 26, pp. 252-271 (2005))
17     !!
18     !! 2. Redistributions of source code must retain the above copyright
19     !! notice, this list of conditions and the following disclaimer.
20     !!
21     !! 3. Redistributions in binary form must reproduce the above copyright
22     !! notice, this list of conditions and the following disclaimer in the
23     !! documentation and/or other materials provided with the
24     !! distribution.
25     !!
26     !! This software is provided "AS IS," without a warranty of any
27     !! kind. All express or implied conditions, representations and
28     !! warranties, including any implied warranty of merchantability,
29     !! fitness for a particular purpose or non-infringement, are hereby
30     !! excluded. The University of Notre Dame and its licensors shall not
31     !! be liable for any damages suffered by licensee as a result of
32     !! using, modifying or distributing the software or its
33     !! derivatives. In no event will the University of Notre Dame or its
34     !! licensors be liable for any lost revenue, profit or data, or for
35     !! direct, indirect, special, consequential, incidental or punitive
36     !! damages, however caused and regardless of the theory of liability,
37     !! arising out of the use of or inability to use software, even if the
38     !! University of Notre Dame has been advised of the possibility of
39     !! such damages.
40     !!
41    
42 tim 9 module notifyCutoffs
43 gezelter 507
44 tim 9 use definitions
45 gezelter 117 use doForces, only: setRlistDF
46 tim 9 use reaction_field, only: setCutoffsRF
47     use lj, only: setCutoffLJ
48     use eam, only: setCutoffEAM
49     use switcheroo, only: set_switch
50     use status
51     implicit none
52    
53     PRIVATE
54    
55     character(len = statusMsgSize) :: errMsg
56    
57     #define __FORTRAN90
58     #include "UseTheForce/fSwitchingFunction.h"
59    
60     public::cutoffNotify
61 gezelter 507
62 tim 9 contains
63 gezelter 507
64 tim 9 subroutine cutoffNotify( this_rcut, this_rsw, this_rlist )
65 gezelter 507
66 tim 9 real(kind=dp), intent(in) :: this_rcut, this_rsw, this_rlist
67 gezelter 507
68 tim 9 real(kind=dp) :: rsw, rcut, rlist
69     integer :: localError
70     logical :: do_shift
71 gezelter 507
72 tim 9 rcut = this_rcut
73     rsw = this_rsw
74     rlist = this_rlist
75 gezelter 507
76 tim 9 if (rcut .lt. rsw) then
77 gezelter 507
78 tim 9 write(errMsg, *) 'cutoffRadius is ', rcut, newline // tab, &
79 gezelter 507 'but switchingRadius is set larger at ', rsw , newline // tab, &
80     'That is probably not what you wanted to do!'
81    
82 tim 9 call handleWarning("cutoffNotify", errMsg)
83    
84 gezelter 507 endif
85 tim 9
86 gezelter 507 if (rlist .lt. rcut) then
87 tim 9
88 gezelter 507 write(errMsg, *) 'neighborListRadius is ', rlist, newline &
89     // tab, 'but cutoffRadius is set larger at ', rcut , newline &
90     // tab, 'That is probably a programming error!'
91 tim 9
92 gezelter 507 call handleWarning("cutoffNotify", errMsg)
93 tim 9
94 gezelter 507 endif
95 tim 9
96 gezelter 507 do_shift = .false.
97     if (abs(rcut-rsw) .lt. 0.0001) then
98    
99     write(errMsg, *) &
100     'cutoffRadius and switchingRadius are set to the same', newline &
101     // tab, 'value. OOPSE will use shifted Lennard-Jones', newline &
102     // tab, 'potentials instead of switching functions.'
103    
104     call handleInfo("cutoffNotify", errMsg)
105    
106     do_shift = .true.
107    
108     endif
109    
110     call setRlistDF( rlist )
111     call setCutoffsRF( rcut, rsw )
112     call setCutoffLJ( rcut, do_shift, localError )
113     call setCutoffEAM( rcut, localError)
114     call set_switch(GROUP_SWITCH, rsw, rcut)
115    
116     end subroutine cutoffNotify
117    
118     end module notifyCutoffs