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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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 * 1. 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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> | 
 * 2. 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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 * 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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 * SUPPORT OPEN SCIENCE!  If you use OpenMD or its source code in your | 
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 * research, please cite the appropriate papers when you publish your | 
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 * work.  Good starting points are: | 
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 *                                                                       | 
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 * [1]  Meineke, et al., J. Comp. Chem. 26, 252-271 (2005).              | 
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 * [2]  Fennell & Gezelter, J. Chem. Phys. 124, 234104 (2006).           | 
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+ | 
 * [3]  Sun, Lin & Gezelter, J. Chem. Phys. 128, 24107 (2008).           | 
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 * [4]  Vardeman & Gezelter, in progress (2009).                         | 
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 */ | 
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   | 
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/** | 
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#include "utils/NumericConstant.hpp" | 
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#include "utils/simError.h" | 
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#include "utils/Utility.hpp" | 
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namespace oopse { | 
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#include <cstdio> | 
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 | 
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namespace OpenMD { | 
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 | 
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  void  Snapshot::setHmat(const Mat3x3d& m) { | 
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    const double orthoTolerance = NumericConstant::epsilon; | 
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    hmat_ = m; | 
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    invHmat_ = hmat_.inverse(); | 
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     | 
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 | 
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    //prepare fortran Hmat  | 
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    double fortranHmat[9]; | 
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    double fortranInvHmat[9]; | 
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    RealType fortranHmat[9]; | 
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    RealType fortranInvHmat[9]; | 
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    hmat_.getArray(fortranHmat); | 
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    invHmat_.getArray(fortranInvHmat); | 
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 | 
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    //determine whether the box is orthoTolerance or not | 
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    int oldOrthoRhombic = orthoRhombic_; | 
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     | 
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    double smallDiag = fabs(hmat_(0, 0)); | 
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    RealType smallDiag = fabs(hmat_(0, 0)); | 
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    if(smallDiag > fabs(hmat_(1, 1))) smallDiag = fabs(hmat_(1, 1)); | 
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    if(smallDiag > fabs(hmat_(2, 2))) smallDiag = fabs(hmat_(2, 2));     | 
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    double tol = smallDiag * orthoTolerance; | 
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    RealType tol = smallDiag * orthoTolerance_; | 
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 | 
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    orthoRhombic_ = 1; | 
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 | 
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 | 
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      if( orthoRhombic_ ) { | 
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        sprintf( painCave.errMsg, | 
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                 "OOPSE is switching from the default Non-Orthorhombic\n" | 
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                 "OpenMD is switching from the default Non-Orthorhombic\n" | 
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                 "\tto the faster Orthorhombic periodic boundary computations.\n" | 
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                 "\tThis is usually a good thing, but if you wan't the\n" | 
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                 "\tThis is usually a good thing, but if you want the\n" | 
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                 "\tNon-Orthorhombic computations, make the orthoBoxTolerance\n" | 
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                 "\tvariable ( currently set to %G ) smaller.\n", | 
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                 orthoTolerance); | 
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        painCave.severity = OOPSE_INFO; | 
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                 orthoTolerance_); | 
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        painCave.severity = OPENMD_INFO; | 
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        simError(); | 
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      } | 
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      else { | 
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        sprintf( painCave.errMsg, | 
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                 "OOPSE is switching from the faster Orthorhombic to the more\n" | 
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                 "OpenMD is switching from the faster Orthorhombic to the more\n" | 
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                 "\tflexible Non-Orthorhombic periodic boundary computations.\n" | 
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                 "\tThis is usually because the box has deformed under\n" | 
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                 "\tNPTf integration. If you wan't to live on the edge with\n" | 
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                 "\tNPTf integration. If you want to live on the edge with\n" | 
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                 "\tthe Orthorhombic computations, make the orthoBoxTolerance\n" | 
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                 "\tvariable ( currently set to %G ) larger.\n", | 
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                 orthoTolerance); | 
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        painCave.severity = OOPSE_WARNING; | 
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                 orthoTolerance_); | 
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        painCave.severity = OPENMD_WARNING; | 
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        simError(); | 
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      } | 
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    }     | 
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 | 
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  } | 
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 | 
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  Vector3d Snapshot::getCOM() { | 
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    if( !hasCOM_ ) { | 
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      sprintf( painCave.errMsg, "COM was requested before COM was computed!\n"); | 
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      painCave.severity = OPENMD_ERROR; | 
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      simError(); | 
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    } | 
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    return COM_; | 
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  } | 
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   | 
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  Vector3d Snapshot::getCOMvel() { | 
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    if( !hasCOM_ ) { | 
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      sprintf( painCave.errMsg, "COMvel was requested before COM was computed!\n"); | 
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      painCave.severity = OPENMD_ERROR; | 
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      simError(); | 
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    } | 
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    return COMvel_; | 
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  } | 
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   | 
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  Vector3d Snapshot::getCOMw() { | 
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    if( !hasCOM_ ) { | 
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      sprintf( painCave.errMsg, "COMw was requested before COM was computed!\n"); | 
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      painCave.severity = OPENMD_ERROR; | 
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      simError(); | 
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    } | 
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    return COMw_; | 
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  } | 
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  | 
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  | 
} | 
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   |