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!! |
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!! Copyright (c) 2005 The University of Notre Dame. All Rights Reserved. |
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!! |
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!! The University of Notre Dame grants you ("Licensee") a |
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!! non-exclusive, royalty free, license to use, modify and |
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!! redistribute this software in source and binary code form, provided |
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!! that the following conditions are met: |
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!! |
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!! 1. Acknowledgement of the program authors must be made in any |
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!! publication of scientific results based in part on use of the |
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!! program. An acceptable form of acknowledgement is citation of |
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!! the article in which the program was described (Matthew |
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!! A. Meineke, Charles F. Vardeman II, Teng Lin, Christopher |
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!! J. Fennell and J. Daniel Gezelter, "OOPSE: An Object-Oriented |
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!! Parallel Simulation Engine for Molecular Dynamics," |
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!! J. Comput. Chem. 26, pp. 252-271 (2005)) |
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!! |
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!! 2. Redistributions of source code must retain the above copyright |
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!! notice, this list of conditions and the following disclaimer. |
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!! |
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!! 3. Redistributions in binary form must reproduce the above copyright |
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!! notice, this list of conditions and the following disclaimer in the |
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!! documentation and/or other materials provided with the |
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!! distribution. |
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!! |
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!! This software is provided "AS IS," without a warranty of any |
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!! kind. All express or implied conditions, representations and |
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!! warranties, including any implied warranty of merchantability, |
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!! fitness for a particular purpose or non-infringement, are hereby |
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!! excluded. The University of Notre Dame and its licensors shall not |
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!! be liable for any damages suffered by licensee as a result of |
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!! using, modifying or distributing the software or its |
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!! derivatives. In no event will the University of Notre Dame or its |
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!! licensors be liable for any lost revenue, profit or data, or for |
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!! direct, indirect, special, consequential, incidental or punitive |
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!! damages, however caused and regardless of the theory of liability, |
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!! arising out of the use of or inability to use software, even if the |
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!! University of Notre Dame has been advised of the possibility of |
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!! such damages. |
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!! |
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|
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module switcheroo |
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|
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use definitions |
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'set_switch: one of the switches is negative!' |
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return |
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endif |
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< |
|
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> |
|
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rin(SwitchType) = rinner |
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rout(SwitchType) = router |
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rin2(SwitchType) = rinner * rinner |
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|
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if (r2.lt.rout2(SwitchType)) then |
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if (r2.lt.rin2(SwitchType)) then |
118 |
< |
|
118 |
> |
|
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sw = 1.0d0 |
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dswdr = 0.0d0 |
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return |
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< |
|
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> |
|
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else |
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< |
|
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> |
|
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r = dsqrt(r2) |
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< |
|
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> |
|
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ron = rin(SwitchType) |
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roff = rout(SwitchType) |
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< |
|
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> |
|
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sw = (roff + 2.0d0*r - 3.0d0*ron)*(roff-r)**2/ ((roff-ron)**3) |
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dswdr = 6.0d0*(r*r - r*ron - r*roff +roff*ron)/((roff-ron)**3) |
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< |
|
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> |
|
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in_switching_region = .true. |
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return |
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endif |
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else |
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return |
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< |
endif |
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< |
|
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> |
endif |
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> |
|
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end subroutine get_switch |
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end module switcheroo |