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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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#include <algorithm> | 
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 | 
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#include "RadialDistrFunc.hpp" | 
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#include "io/DumpReader.hpp" | 
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#include "primitives/Molecule.hpp" | 
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namespace oopse { | 
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 | 
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  RadialDistrFunc::RadialDistrFunc(SimInfo* info, const std::string& filename, const std::string& sele1, const std::string& sele2) | 
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    : StaticAnalyser(info, filename),  | 
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      selectionScript1_(sele1), selectionScript2_(sele2), evaluator1_(info), evaluator2_(info),  | 
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      seleMan1_(info), seleMan2_(info), common_(info), sele1_minus_common_(info), sele2_minus_common_(info){ | 
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           | 
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      evaluator1_.loadScriptString(sele1); | 
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      evaluator2_.loadScriptString(sele2); | 
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 | 
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      if (!evaluator1_.isDynamic()) { | 
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        seleMan1_.setSelectionSet(evaluator1_.evaluate()); | 
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        validateSelection1(seleMan1_); | 
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      } | 
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      if (!evaluator2_.isDynamic()) { | 
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        seleMan2_.setSelectionSet(evaluator2_.evaluate()); | 
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        validateSelection2(seleMan2_); | 
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      } | 
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 | 
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      if (!evaluator1_.isDynamic() && !evaluator2_.isDynamic()) { | 
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        //if all selections are static,  we can precompute the number of real pairs     | 
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        common_ = seleMan1_ & seleMan2_; | 
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        sele1_minus_common_ = seleMan1_ - common_; | 
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        sele2_minus_common_ = seleMan2_ - common_;       | 
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 | 
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        int nSelected1 = seleMan1_.getSelectionCount(); | 
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        int nSelected2 = seleMan2_.getSelectionCount(); | 
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        int nIntersect = common_.getSelectionCount(); | 
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         | 
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        nPairs_ = nSelected1 * nSelected2 - (nIntersect +1) * nIntersect/2;             | 
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      } | 
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     | 
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    } | 
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 | 
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  void RadialDistrFunc::process() { | 
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    Molecule* mol; | 
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    RigidBody* rb; | 
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    SimInfo::MoleculeIterator mi; | 
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    Molecule::RigidBodyIterator rbIter; | 
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     | 
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    preProcess(); | 
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     | 
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    DumpReader reader(info_, dumpFilename_);     | 
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    int nFrames = reader.getNFrames(); | 
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    nProcessed_ = nFrames / step_; | 
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 | 
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    for (int i = 0; i < nFrames; i += step_) { | 
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      reader.readFrame(i); | 
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      currentSnapshot_ = info_->getSnapshotManager()->getCurrentSnapshot(); | 
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 | 
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      if (evaluator1_.isDynamic()) { | 
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        seleMan1_.setSelectionSet(evaluator1_.evaluate()); | 
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        validateSelection1(seleMan1_); | 
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      } | 
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      if (evaluator2_.isDynamic()) { | 
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        seleMan2_.setSelectionSet(evaluator2_.evaluate()); | 
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        validateSelection2(seleMan2_); | 
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      } | 
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 | 
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      for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) { | 
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 | 
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        //change the positions of atoms which belong to the rigidbodies | 
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        for (rb = mol->beginRigidBody(rbIter); rb != NULL; rb = mol->nextRigidBody(rbIter)) { | 
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          rb->updateAtoms(); | 
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        } | 
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      } | 
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         | 
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      initalizeHistogram(); | 
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 | 
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 | 
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         | 
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      //selections may overlap. | 
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      // | 
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      // |s1 -c | c | | 
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      //            | c |s2 - c| | 
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      // | 
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      // s1 : number of selected stuntdoubles in selection1 | 
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      // s2 : number of selected stuntdoubles in selection2 | 
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      // c   : number of intersect stuntdouble between selection1 and selection2 | 
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      //when loop over the pairs, we can divide the looping into 3 stages | 
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      //stage 1 :     [s1-c]      [s2] | 
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      //stage 2 :     [c]            [s2 - c] | 
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      //stage 3 :     [c]            [c] | 
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      //stage 1 and stage 2 are completly non-overlapping | 
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      //stage 3 are completely overlapping | 
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 | 
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      if (evaluator1_.isDynamic() || evaluator2_.isDynamic()) { | 
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 | 
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        common_ = seleMan1_ & seleMan2_; | 
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        sele1_minus_common_ = seleMan1_ - common_; | 
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        sele2_minus_common_ = seleMan2_ - common_;             | 
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        int nSelected1 = seleMan1_.getSelectionCount(); | 
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        int nSelected2 = seleMan2_.getSelectionCount(); | 
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        int nIntersect = common_.getSelectionCount(); | 
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             | 
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        nPairs_ = nSelected1 * nSelected2 - (nIntersect +1) * nIntersect/2;                       | 
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      } | 
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      processNonOverlapping(sele1_minus_common_, seleMan2_); | 
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      processNonOverlapping(common_, sele2_minus_common_);         | 
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      processOverlapping(common_); | 
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         | 
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         | 
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      processHistogram(); | 
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         | 
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    } | 
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 | 
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    postProcess(); | 
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 | 
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    writeRdf(); | 
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  } | 
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 | 
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  void RadialDistrFunc::processNonOverlapping( SelectionManager& sman1, SelectionManager& sman2) { | 
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    StuntDouble* sd1; | 
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    StuntDouble* sd2; | 
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    int i;     | 
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    int j; | 
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     | 
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    for (sd1 = sman1.beginSelected(i); sd1 != NULL; sd1 = sman1.nextSelected(i)) { | 
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 | 
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      for (sd2 = sman2.beginSelected(j); sd2 != NULL; sd2 = sman2.nextSelected(j)) { | 
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        collectHistogram(sd1, sd2); | 
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      }             | 
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    } | 
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 | 
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  } | 
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 | 
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  void RadialDistrFunc::processOverlapping( SelectionManager& sman) { | 
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    StuntDouble* sd1; | 
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    StuntDouble* sd2; | 
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    int i;     | 
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    int j; | 
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 | 
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    //basically, it is the same as below loop | 
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    //for (int i = 0;  i < n; ++i ) | 
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    //  for (int j = i + 1; j < n; ++j) {} | 
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     | 
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    for (sd1 = sman.beginSelected(i); sd1 != NULL; sd1 = sman.nextSelected(i)) {                     | 
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      for (j  = i, sd2 = sman.nextSelected(j); sd2 != NULL; sd2 = sman.nextSelected(j)) { | 
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        collectHistogram(sd1, sd2); | 
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      }             | 
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    } | 
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 | 
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  } | 
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 | 
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} |