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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. 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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 * 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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 * | 
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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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 * 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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#include "brains/Snapshot.hpp" | 
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#include "integrators/Integrator.hpp" | 
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#include "utils/simError.h" | 
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namespace OpenMD { | 
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  Integrator::Integrator(SimInfo* info)  | 
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    : info_(info), forceMan_(NULL) , needPotential(false), needStress(false),  | 
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      needReset(false), velocitizer_(NULL), needVelocityScaling(false),  | 
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      rnemd_(NULL), useRNEMD(false), | 
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      dumpWriter(NULL), statWriter(NULL), thermo(info), | 
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      currentSnapshot_(info->getSnapshotManager()->getCurrentSnapshot()) { | 
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      simParams = info->getSimParams(); | 
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      if (simParams->haveDt()) { | 
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        dt = simParams->getDt(); | 
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      } else { | 
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        sprintf(painCave.errMsg, | 
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                "Integrator Error: dt is not set\n"); | 
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        painCave.isFatal = 1; | 
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        simError(); | 
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      } | 
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     | 
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      if (simParams->haveRunTime()) { | 
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        runTime = simParams->getRunTime(); | 
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      } else { | 
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        sprintf(painCave.errMsg, | 
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                "Integrator Error: runTime is not set\n"); | 
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        painCave.isFatal = 1; | 
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        simError(); | 
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      } | 
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      // set the status, sample, and thermal kick times | 
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      if (simParams->haveSampleTime()){ | 
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        sampleTime = simParams->getSampleTime(); | 
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        statusTime = sampleTime; | 
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      } else{ | 
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        sampleTime = simParams->getRunTime(); | 
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        statusTime = sampleTime; | 
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      } | 
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      if (simParams->haveStatusTime()){ | 
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        statusTime = simParams->getStatusTime(); | 
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      } | 
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      if (simParams->haveThermalTime()){ | 
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        thermalTime = simParams->getThermalTime(); | 
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      } else { | 
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        thermalTime = simParams->getRunTime(); | 
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      } | 
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      if (!simParams->getUseInitalTime()) { | 
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        currentSnapshot_->setTime(0.0); | 
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      } | 
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      if (simParams->haveResetTime()) { | 
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        needReset = true; | 
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        resetTime = simParams->getResetTime(); | 
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      } | 
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       | 
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      // Create a default ForceManager: If the subclass wants to use  | 
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      // a different ForceManager, use setForceManager | 
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      forceMan_ = new ForceManager(info); | 
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      // check for the temperature set flag (velocity scaling)       | 
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      if (simParams->haveTempSet()) { | 
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        needVelocityScaling = simParams->getTempSet(); | 
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        if (simParams->haveTargetTemp()) { | 
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          targetScalingTemp = simParams->getTargetTemp(); | 
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        } | 
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        else { | 
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          sprintf(painCave.errMsg, | 
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                  "Integrator Error: Target Temperature is not set\n"); | 
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          painCave.isFatal = 1; | 
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          simError(); | 
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        } | 
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      } | 
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       | 
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      // Create a default a velocitizer: If the subclass wants to use  | 
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      // a different velocitizer, use setVelocitizer | 
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      velocitizer_ = new Velocitizer(info); | 
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      if (simParams->haveUseRNEMD()) { | 
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        if (simParams->getUseRNEMD()) { | 
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          // Create a default a RNEMD. | 
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          rnemd_ = new RNEMD(info); | 
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          useRNEMD = simParams->getUseRNEMD(); | 
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          if (simParams->haveRNEMD_exchangeTime()) { | 
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            RNEMD_exchangeTime = simParams->getRNEMD_exchangeTime(); | 
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          }  | 
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        } | 
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      } | 
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  } | 
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   | 
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  Integrator::~Integrator(){ | 
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    delete forceMan_; | 
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    delete velocitizer_; | 
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    delete rnemd_; | 
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    delete dumpWriter; | 
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    delete statWriter; | 
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  } | 
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} | 
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