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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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#include "parallel/ForceMatrixDecomposition.hpp" |
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#include "math/SquareMatrix3.hpp" |
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#include "nonbonded/NonBondedInteraction.hpp" |
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#include "brains/SnapshotManager.hpp" |
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#include "brains/PairList.hpp" |
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#include "primitives/Molecule.hpp" |
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|
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using namespace std; |
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namespace OpenMD { |
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|
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ForceMatrixDecomposition::ForceMatrixDecomposition(SimInfo* info, InteractionManager* iMan) : |
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ForceDecomposition(info, iMan) { |
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// In a parallel computation, row and colum scans must visit all |
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// surrounding cells (not just the 14 upper triangular blocks that |
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// are used when the processor can see all pairs) |
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#ifdef IS_MPI |
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cellOffsets_.push_back( Vector3i(-1, 0, 0) ); |
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cellOffsets_.push_back( Vector3i(-1,-1, 0) ); |
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cellOffsets_.push_back( Vector3i( 0,-1, 0) ); |
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cellOffsets_.push_back( Vector3i( 1,-1, 0) ); |
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cellOffsets_.push_back( Vector3i( 0, 0,-1) ); |
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cellOffsets_.push_back( Vector3i(-1, 0, 1) ); |
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cellOffsets_.push_back( Vector3i(-1,-1,-1) ); |
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cellOffsets_.push_back( Vector3i( 0,-1,-1) ); |
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cellOffsets_.push_back( Vector3i( 1,-1,-1) ); |
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cellOffsets_.push_back( Vector3i( 1, 0,-1) ); |
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cellOffsets_.push_back( Vector3i( 1, 1,-1) ); |
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cellOffsets_.push_back( Vector3i( 0, 1,-1) ); |
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cellOffsets_.push_back( Vector3i(-1, 1,-1) ); |
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#endif |
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} |
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|
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/** |
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* distributeInitialData is essentially a copy of the older fortran |
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* SimulationSetup |
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*/ |
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void ForceMatrixDecomposition::distributeInitialData() { |
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snap_ = sman_->getCurrentSnapshot(); |
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storageLayout_ = sman_->getStorageLayout(); |
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ff_ = info_->getForceField(); |
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nLocal_ = snap_->getNumberOfAtoms(); |
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|
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nGroups_ = info_->getNLocalCutoffGroups(); |
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// gather the information for atomtype IDs (atids): |
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idents = info_->getIdentArray(); |
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AtomLocalToGlobal = info_->getGlobalAtomIndices(); |
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cgLocalToGlobal = info_->getGlobalGroupIndices(); |
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vector<int> globalGroupMembership = info_->getGlobalGroupMembership(); |
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|
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massFactors = info_->getMassFactors(); |
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|
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PairList* excludes = info_->getExcludedInteractions(); |
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PairList* oneTwo = info_->getOneTwoInteractions(); |
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PairList* oneThree = info_->getOneThreeInteractions(); |
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PairList* oneFour = info_->getOneFourInteractions(); |
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|
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#ifdef IS_MPI |
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|
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MPI::Intracomm row = rowComm.getComm(); |
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MPI::Intracomm col = colComm.getComm(); |
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|
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AtomPlanIntRow = new Plan<int>(row, nLocal_); |
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AtomPlanRealRow = new Plan<RealType>(row, nLocal_); |
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AtomPlanVectorRow = new Plan<Vector3d>(row, nLocal_); |
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AtomPlanMatrixRow = new Plan<Mat3x3d>(row, nLocal_); |
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AtomPlanPotRow = new Plan<potVec>(row, nLocal_); |
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|
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AtomPlanIntColumn = new Plan<int>(col, nLocal_); |
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AtomPlanRealColumn = new Plan<RealType>(col, nLocal_); |
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AtomPlanVectorColumn = new Plan<Vector3d>(col, nLocal_); |
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AtomPlanMatrixColumn = new Plan<Mat3x3d>(col, nLocal_); |
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AtomPlanPotColumn = new Plan<potVec>(col, nLocal_); |
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|
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cgPlanIntRow = new Plan<int>(row, nGroups_); |
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cgPlanVectorRow = new Plan<Vector3d>(row, nGroups_); |
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cgPlanIntColumn = new Plan<int>(col, nGroups_); |
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cgPlanVectorColumn = new Plan<Vector3d>(col, nGroups_); |
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|
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nAtomsInRow_ = AtomPlanIntRow->getSize(); |
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nAtomsInCol_ = AtomPlanIntColumn->getSize(); |
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nGroupsInRow_ = cgPlanIntRow->getSize(); |
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nGroupsInCol_ = cgPlanIntColumn->getSize(); |
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|
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// Modify the data storage objects with the correct layouts and sizes: |
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atomRowData.resize(nAtomsInRow_); |
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atomRowData.setStorageLayout(storageLayout_); |
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atomColData.resize(nAtomsInCol_); |
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atomColData.setStorageLayout(storageLayout_); |
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cgRowData.resize(nGroupsInRow_); |
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cgRowData.setStorageLayout(DataStorage::dslPosition); |
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cgColData.resize(nGroupsInCol_); |
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cgColData.setStorageLayout(DataStorage::dslPosition); |
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|
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identsRow.resize(nAtomsInRow_); |
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identsCol.resize(nAtomsInCol_); |
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|
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AtomPlanIntRow->gather(idents, identsRow); |
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AtomPlanIntColumn->gather(idents, identsCol); |
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|
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// allocate memory for the parallel objects |
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atypesRow.resize(nAtomsInRow_); |
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atypesCol.resize(nAtomsInCol_); |
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|
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for (int i = 0; i < nAtomsInRow_; i++) |
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atypesRow[i] = ff_->getAtomType(identsRow[i]); |
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for (int i = 0; i < nAtomsInCol_; i++) |
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atypesCol[i] = ff_->getAtomType(identsCol[i]); |
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|
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pot_row.resize(nAtomsInRow_); |
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pot_col.resize(nAtomsInCol_); |
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|
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AtomRowToGlobal.resize(nAtomsInRow_); |
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AtomColToGlobal.resize(nAtomsInCol_); |
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AtomPlanIntRow->gather(AtomLocalToGlobal, AtomRowToGlobal); |
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AtomPlanIntColumn->gather(AtomLocalToGlobal, AtomColToGlobal); |
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|
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cerr << "Atoms in Local:\n"; |
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for (int i = 0; i < AtomLocalToGlobal.size(); i++) |
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{ |
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cerr << "i =\t" << i << "\t localAt =\t" << AtomLocalToGlobal[i] << "\n"; |
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} |
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cerr << "Atoms in Row:\n"; |
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for (int i = 0; i < AtomRowToGlobal.size(); i++) |
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{ |
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cerr << "i =\t" << i << "\t rowAt =\t" << AtomRowToGlobal[i] << "\n"; |
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} |
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cerr << "Atoms in Col:\n"; |
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for (int i = 0; i < AtomColToGlobal.size(); i++) |
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{ |
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cerr << "i =\t" << i << "\t colAt =\t" << AtomColToGlobal[i] << "\n"; |
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} |
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|
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cgRowToGlobal.resize(nGroupsInRow_); |
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cgColToGlobal.resize(nGroupsInCol_); |
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cgPlanIntRow->gather(cgLocalToGlobal, cgRowToGlobal); |
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cgPlanIntColumn->gather(cgLocalToGlobal, cgColToGlobal); |
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|
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cerr << "Gruops in Local:\n"; |
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for (int i = 0; i < cgLocalToGlobal.size(); i++) |
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{ |
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cerr << "i =\t" << i << "\t localCG =\t" << cgLocalToGlobal[i] << "\n"; |
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} |
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cerr << "Groups in Row:\n"; |
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for (int i = 0; i < cgRowToGlobal.size(); i++) |
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{ |
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cerr << "i =\t" << i << "\t rowCG =\t" << cgRowToGlobal[i] << "\n"; |
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} |
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cerr << "Groups in Col:\n"; |
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for (int i = 0; i < cgColToGlobal.size(); i++) |
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{ |
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cerr << "i =\t" << i << "\t colCG =\t" << cgColToGlobal[i] << "\n"; |
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} |
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|
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massFactorsRow.resize(nAtomsInRow_); |
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massFactorsCol.resize(nAtomsInCol_); |
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AtomPlanRealRow->gather(massFactors, massFactorsRow); |
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AtomPlanRealColumn->gather(massFactors, massFactorsCol); |
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|
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groupListRow_.clear(); |
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groupListRow_.resize(nGroupsInRow_); |
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for (int i = 0; i < nGroupsInRow_; i++) |
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{ |
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int gid = cgRowToGlobal[i]; |
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for (int j = 0; j < nAtomsInRow_; j++) |
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{ |
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int aid = AtomRowToGlobal[j]; |
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if (globalGroupMembership[aid] == gid) |
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groupListRow_[i].push_back(j); |
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} |
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} |
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|
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groupListCol_.clear(); |
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groupListCol_.resize(nGroupsInCol_); |
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for (int i = 0; i < nGroupsInCol_; i++) |
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{ |
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int gid = cgColToGlobal[i]; |
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for (int j = 0; j < nAtomsInCol_; j++) |
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{ |
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int aid = AtomColToGlobal[j]; |
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if (globalGroupMembership[aid] == gid) |
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groupListCol_[i].push_back(j); |
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} |
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} |
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|
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excludesForAtom.clear(); |
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excludesForAtom.resize(nAtomsInRow_); |
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toposForAtom.clear(); |
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toposForAtom.resize(nAtomsInRow_); |
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topoDist.clear(); |
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topoDist.resize(nAtomsInRow_); |
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for (int i = 0; i < nAtomsInRow_; i++) |
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{ |
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int iglob = AtomRowToGlobal[i]; |
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|
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for (int j = 0; j < nAtomsInCol_; j++) |
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{ |
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int jglob = AtomColToGlobal[j]; |
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|
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if (excludes->hasPair(iglob, jglob)) |
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excludesForAtom[i].push_back(j); |
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|
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if (oneTwo->hasPair(iglob, jglob)) |
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{ |
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toposForAtom[i].push_back(j); |
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topoDist[i].push_back(1); |
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} else |
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{ |
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if (oneThree->hasPair(iglob, jglob)) |
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{ |
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toposForAtom[i].push_back(j); |
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topoDist[i].push_back(2); |
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} else |
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{ |
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if (oneFour->hasPair(iglob, jglob)) |
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{ |
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toposForAtom[i].push_back(j); |
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topoDist[i].push_back(3); |
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} |
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} |
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} |
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} |
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} |
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|
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#endif |
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|
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// allocate memory for the parallel objects |
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atypesLocal.resize(nLocal_); |
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|
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for (int i = 0; i < nLocal_; i++) |
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atypesLocal[i] = ff_->getAtomType(idents[i]); |
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|
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groupList_.clear(); |
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groupList_.resize(nGroups_); |
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for (int i = 0; i < nGroups_; i++) |
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{ |
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int gid = cgLocalToGlobal[i]; |
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for (int j = 0; j < nLocal_; j++) |
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{ |
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int aid = AtomLocalToGlobal[j]; |
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if (globalGroupMembership[aid] == gid) |
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{ |
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groupList_[i].push_back(j); |
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} |
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} |
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} |
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|
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excludesForAtom.clear(); |
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excludesForAtom.resize(nLocal_); |
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toposForAtom.clear(); |
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toposForAtom.resize(nLocal_); |
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topoDist.clear(); |
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topoDist.resize(nLocal_); |
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|
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for (int i = 0; i < nLocal_; i++) |
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{ |
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int iglob = AtomLocalToGlobal[i]; |
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|
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for (int j = 0; j < nLocal_; j++) |
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{ |
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int jglob = AtomLocalToGlobal[j]; |
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|
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if (excludes->hasPair(iglob, jglob)) |
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excludesForAtom[i].push_back(j); |
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|
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if (oneTwo->hasPair(iglob, jglob)) |
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{ |
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toposForAtom[i].push_back(j); |
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topoDist[i].push_back(1); |
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} else |
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{ |
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if (oneThree->hasPair(iglob, jglob)) |
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{ |
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toposForAtom[i].push_back(j); |
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topoDist[i].push_back(2); |
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} else |
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{ |
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if (oneFour->hasPair(iglob, jglob)) |
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{ |
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toposForAtom[i].push_back(j); |
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topoDist[i].push_back(3); |
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} |
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} |
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} |
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} |
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} |
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|
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Globals* simParams_ = info_->getSimParams(); |
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if (simParams_->haveNeighborListReorderFreq()) |
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{ |
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neighborListReorderFreq = simParams_->getNeighborListReorderFreq(); |
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} else |
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{ |
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neighborListReorderFreq = 0; |
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} |
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reorderFreqCounter = 1; |
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|
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createGtypeCutoffMap(); |
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|
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} |
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|
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void ForceMatrixDecomposition::createGtypeCutoffMap() { |
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|
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RealType tol = 1e-6; |
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largestRcut_ = 0.0; |
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RealType rc; |
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int atid; |
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set<AtomType*> atypes = info_->getSimulatedAtomTypes(); |
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|
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map<int, RealType> atypeCutoff; |
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|
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for (set<AtomType*>::iterator at = atypes.begin(); at != atypes.end(); ++at) |
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{ |
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atid = (*at)->getIdent(); |
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if (userChoseCutoff_) |
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atypeCutoff[atid] = userCutoff_; |
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else |
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atypeCutoff[atid] = interactionMan_->getSuggestedCutoffRadius(*at); |
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} |
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|
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vector<RealType> gTypeCutoffs; |
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// first we do a single loop over the cutoff groups to find the |
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// largest cutoff for any atypes present in this group. |
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#ifdef IS_MPI |
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vector<RealType> groupCutoffRow(nGroupsInRow_, 0.0); |
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groupRowToGtype.resize(nGroupsInRow_); |
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for (int cg1 = 0; cg1 < nGroupsInRow_; cg1++) |
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{ |
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vector<int> atomListRow = getAtomsInGroupRow(cg1); |
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for (vector<int>::iterator ia = atomListRow.begin(); |
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ia != atomListRow.end(); ++ia) |
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{ |
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int atom1 = (*ia); |
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atid = identsRow[atom1]; |
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if (atypeCutoff[atid] > groupCutoffRow[cg1]) |
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{ |
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groupCutoffRow[cg1] = atypeCutoff[atid]; |
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} |
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} |
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|
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bool gTypeFound = false; |
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for (int gt = 0; gt < gTypeCutoffs.size(); gt++) |
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{ |
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if (abs(groupCutoffRow[cg1] - gTypeCutoffs[gt]) < tol) |
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{ |
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groupRowToGtype[cg1] = gt; |
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gTypeFound = true; |
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} |
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} |
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if (!gTypeFound) |
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{ |
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gTypeCutoffs.push_back( groupCutoffRow[cg1] ); |
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groupRowToGtype[cg1] = gTypeCutoffs.size() - 1; |
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} |
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|
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} |
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vector<RealType> groupCutoffCol(nGroupsInCol_, 0.0); |
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groupColToGtype.resize(nGroupsInCol_); |
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for (int cg2 = 0; cg2 < nGroupsInCol_; cg2++) |
| 399 |
{ |
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vector<int> atomListCol = getAtomsInGroupColumn(cg2); |
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for (vector<int>::iterator jb = atomListCol.begin(); |
| 402 |
jb != atomListCol.end(); ++jb) |
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{ |
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int atom2 = (*jb); |
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atid = identsCol[atom2]; |
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if (atypeCutoff[atid] > groupCutoffCol[cg2]) |
| 407 |
{ |
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groupCutoffCol[cg2] = atypeCutoff[atid]; |
| 409 |
} |
| 410 |
} |
| 411 |
bool gTypeFound = false; |
| 412 |
for (int gt = 0; gt < gTypeCutoffs.size(); gt++) |
| 413 |
{ |
| 414 |
if (abs(groupCutoffCol[cg2] - gTypeCutoffs[gt]) < tol) |
| 415 |
{ |
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groupColToGtype[cg2] = gt; |
| 417 |
gTypeFound = true; |
| 418 |
} |
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} |
| 420 |
if (!gTypeFound) |
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{ |
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gTypeCutoffs.push_back( groupCutoffCol[cg2] ); |
| 423 |
groupColToGtype[cg2] = gTypeCutoffs.size() - 1; |
| 424 |
} |
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} |
| 426 |
#else |
| 427 |
|
| 428 |
vector<RealType> groupCutoff(nGroups_, 0.0); |
| 429 |
groupToGtype.resize(nGroups_); |
| 430 |
for (int cg1 = 0; cg1 < nGroups_; cg1++) |
| 431 |
{ |
| 432 |
groupCutoff[cg1] = 0.0; |
| 433 |
vector<int> atomList = getAtomsInGroupRow(cg1); |
| 434 |
for (vector<int>::iterator ia = atomList.begin(); ia != atomList.end(); ++ia) |
| 435 |
{ |
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int atom1 = (*ia); |
| 437 |
atid = idents[atom1]; |
| 438 |
if (atypeCutoff[atid] > groupCutoff[cg1]) |
| 439 |
groupCutoff[cg1] = atypeCutoff[atid]; |
| 440 |
} |
| 441 |
|
| 442 |
bool gTypeFound = false; |
| 443 |
for (int gt = 0; gt < gTypeCutoffs.size(); gt++) |
| 444 |
{ |
| 445 |
if (abs(groupCutoff[cg1] - gTypeCutoffs[gt]) < tol) |
| 446 |
{ |
| 447 |
groupToGtype[cg1] = gt; |
| 448 |
gTypeFound = true; |
| 449 |
} |
| 450 |
} |
| 451 |
if (!gTypeFound) |
| 452 |
{ |
| 453 |
gTypeCutoffs.push_back(groupCutoff[cg1]); |
| 454 |
groupToGtype[cg1] = gTypeCutoffs.size() - 1; |
| 455 |
} |
| 456 |
} |
| 457 |
#endif |
| 458 |
|
| 459 |
// Now we find the maximum group cutoff value present in the simulation |
| 460 |
|
| 461 |
RealType groupMax = *max_element(gTypeCutoffs.begin(), gTypeCutoffs.end()); |
| 462 |
|
| 463 |
#ifdef IS_MPI |
| 464 |
MPI::COMM_WORLD.Allreduce(&groupMax, &groupMax, 1, MPI::REALTYPE, |
| 465 |
MPI::MAX); |
| 466 |
#endif |
| 467 |
|
| 468 |
RealType tradRcut = groupMax; |
| 469 |
|
| 470 |
for (int i = 0; i < gTypeCutoffs.size(); i++) |
| 471 |
{ |
| 472 |
for (int j = 0; j < gTypeCutoffs.size(); j++) |
| 473 |
{ |
| 474 |
RealType thisRcut; |
| 475 |
switch (cutoffPolicy_) { |
| 476 |
case TRADITIONAL: |
| 477 |
thisRcut = tradRcut; |
| 478 |
break; |
| 479 |
case MIX: |
| 480 |
thisRcut = 0.5 * (gTypeCutoffs[i] + gTypeCutoffs[j]); |
| 481 |
break; |
| 482 |
case MAX: |
| 483 |
thisRcut = max(gTypeCutoffs[i], gTypeCutoffs[j]); |
| 484 |
break; |
| 485 |
default: |
| 486 |
sprintf(painCave.errMsg, "ForceMatrixDecomposition::createGtypeCutoffMap " |
| 487 |
"hit an unknown cutoff policy!\n"); |
| 488 |
painCave.severity = OPENMD_ERROR; |
| 489 |
painCave.isFatal = 1; |
| 490 |
simError(); |
| 491 |
break; |
| 492 |
} |
| 493 |
|
| 494 |
pair<int, int> key = make_pair(i, j); |
| 495 |
gTypeCutoffMap[key].first = thisRcut; |
| 496 |
if (thisRcut > largestRcut_) |
| 497 |
largestRcut_ = thisRcut; |
| 498 |
gTypeCutoffMap[key].second = thisRcut * thisRcut; |
| 499 |
gTypeCutoffMap[key].third = pow(thisRcut + skinThickness_, 2); |
| 500 |
// sanity check |
| 501 |
|
| 502 |
if (userChoseCutoff_) |
| 503 |
{ |
| 504 |
if (abs(gTypeCutoffMap[key].first - userCutoff_) > 0.0001) |
| 505 |
{ |
| 506 |
sprintf(painCave.errMsg, "ForceMatrixDecomposition::createGtypeCutoffMap " |
| 507 |
"user-specified rCut (%lf) does not match computed group Cutoff\n", userCutoff_); |
| 508 |
painCave.severity = OPENMD_ERROR; |
| 509 |
painCave.isFatal = 1; |
| 510 |
simError(); |
| 511 |
} |
| 512 |
} |
| 513 |
} |
| 514 |
} |
| 515 |
} |
| 516 |
|
| 517 |
groupCutoffs ForceMatrixDecomposition::getGroupCutoffs(int cg1, int cg2) { |
| 518 |
int i, j; |
| 519 |
#ifdef IS_MPI |
| 520 |
i = groupRowToGtype[cg1]; |
| 521 |
j = groupColToGtype[cg2]; |
| 522 |
#else |
| 523 |
i = groupToGtype[cg1]; |
| 524 |
j = groupToGtype[cg2]; |
| 525 |
#endif |
| 526 |
return gTypeCutoffMap[make_pair(i, j)]; |
| 527 |
} |
| 528 |
|
| 529 |
int ForceMatrixDecomposition::getTopologicalDistance(int atom1, int atom2) { |
| 530 |
for (int j = 0; j < toposForAtom[atom1].size(); j++) |
| 531 |
{ |
| 532 |
if (toposForAtom[atom1][j] == atom2) |
| 533 |
return topoDist[atom1][j]; |
| 534 |
} |
| 535 |
return 0; |
| 536 |
} |
| 537 |
|
| 538 |
void ForceMatrixDecomposition::zeroWorkArrays() { |
| 539 |
pairwisePot = 0.0; |
| 540 |
embeddingPot = 0.0; |
| 541 |
|
| 542 |
#ifdef IS_MPI |
| 543 |
if (storageLayout_ & DataStorage::dslForce) |
| 544 |
{ |
| 545 |
fill(atomRowData.force.begin(), atomRowData.force.end(), V3Zero); |
| 546 |
fill(atomColData.force.begin(), atomColData.force.end(), V3Zero); |
| 547 |
} |
| 548 |
|
| 549 |
if (storageLayout_ & DataStorage::dslTorque) |
| 550 |
{ |
| 551 |
fill(atomRowData.torque.begin(), atomRowData.torque.end(), V3Zero); |
| 552 |
fill(atomColData.torque.begin(), atomColData.torque.end(), V3Zero); |
| 553 |
} |
| 554 |
|
| 555 |
fill(pot_row.begin(), pot_row.end(), |
| 556 |
Vector<RealType, N_INTERACTION_FAMILIES> (0.0)); |
| 557 |
|
| 558 |
fill(pot_col.begin(), pot_col.end(), |
| 559 |
Vector<RealType, N_INTERACTION_FAMILIES> (0.0)); |
| 560 |
|
| 561 |
if (storageLayout_ & DataStorage::dslParticlePot) |
| 562 |
{ |
| 563 |
fill(atomRowData.particlePot.begin(), atomRowData.particlePot.end(), |
| 564 |
0.0); |
| 565 |
fill(atomColData.particlePot.begin(), atomColData.particlePot.end(), |
| 566 |
0.0); |
| 567 |
} |
| 568 |
|
| 569 |
if (storageLayout_ & DataStorage::dslDensity) |
| 570 |
{ |
| 571 |
fill(atomRowData.density.begin(), atomRowData.density.end(), 0.0); |
| 572 |
fill(atomColData.density.begin(), atomColData.density.end(), 0.0); |
| 573 |
} |
| 574 |
|
| 575 |
if (storageLayout_ & DataStorage::dslFunctional) |
| 576 |
{ |
| 577 |
fill(atomRowData.functional.begin(), atomRowData.functional.end(), |
| 578 |
0.0); |
| 579 |
fill(atomColData.functional.begin(), atomColData.functional.end(), |
| 580 |
0.0); |
| 581 |
} |
| 582 |
|
| 583 |
if (storageLayout_ & DataStorage::dslFunctionalDerivative) |
| 584 |
{ |
| 585 |
fill(atomRowData.functionalDerivative.begin(), |
| 586 |
atomRowData.functionalDerivative.end(), 0.0); |
| 587 |
fill(atomColData.functionalDerivative.begin(), |
| 588 |
atomColData.functionalDerivative.end(), 0.0); |
| 589 |
} |
| 590 |
|
| 591 |
if (storageLayout_ & DataStorage::dslSkippedCharge) |
| 592 |
{ |
| 593 |
fill(atomRowData.skippedCharge.begin(), |
| 594 |
atomRowData.skippedCharge.end(), 0.0); |
| 595 |
fill(atomColData.skippedCharge.begin(), |
| 596 |
atomColData.skippedCharge.end(), 0.0); |
| 597 |
} |
| 598 |
|
| 599 |
#endif |
| 600 |
// even in parallel, we need to zero out the local arrays: |
| 601 |
|
| 602 |
if (storageLayout_ & DataStorage::dslParticlePot) |
| 603 |
{ |
| 604 |
fill(snap_->atomData.particlePot.begin(), snap_->atomData.particlePot.end(), 0.0); |
| 605 |
} |
| 606 |
|
| 607 |
if (storageLayout_ & DataStorage::dslDensity) |
| 608 |
{ |
| 609 |
fill(snap_->atomData.density.begin(), snap_->atomData.density.end(), 0.0); |
| 610 |
} |
| 611 |
if (storageLayout_ & DataStorage::dslFunctional) |
| 612 |
{ |
| 613 |
fill(snap_->atomData.functional.begin(), snap_->atomData.functional.end(), 0.0); |
| 614 |
} |
| 615 |
if (storageLayout_ & DataStorage::dslFunctionalDerivative) |
| 616 |
{ |
| 617 |
fill(snap_->atomData.functionalDerivative.begin(), snap_->atomData.functionalDerivative.end(), 0.0); |
| 618 |
} |
| 619 |
if (storageLayout_ & DataStorage::dslSkippedCharge) |
| 620 |
{ |
| 621 |
fill(snap_->atomData.skippedCharge.begin(), snap_->atomData.skippedCharge.end(), 0.0); |
| 622 |
} |
| 623 |
|
| 624 |
} |
| 625 |
|
| 626 |
void ForceMatrixDecomposition::distributeData() { |
| 627 |
snap_ = sman_->getCurrentSnapshot(); |
| 628 |
storageLayout_ = sman_->getStorageLayout(); |
| 629 |
#ifdef IS_MPI |
| 630 |
|
| 631 |
// gather up the atomic positions |
| 632 |
AtomPlanVectorRow->gather(snap_->atomData.position, |
| 633 |
atomRowData.position); |
| 634 |
AtomPlanVectorColumn->gather(snap_->atomData.position, |
| 635 |
atomColData.position); |
| 636 |
|
| 637 |
// gather up the cutoff group positions |
| 638 |
|
| 639 |
cerr << "before gather\n"; |
| 640 |
for (int i = 0; i < snap_->cgData.position.size(); i++) |
| 641 |
{ |
| 642 |
cerr << "cgpos = " << snap_->cgData.position[i] << "\n"; |
| 643 |
} |
| 644 |
|
| 645 |
cgPlanVectorRow->gather(snap_->cgData.position, |
| 646 |
cgRowData.position); |
| 647 |
|
| 648 |
cerr << "after gather\n"; |
| 649 |
for (int i = 0; i < cgRowData.position.size(); i++) |
| 650 |
{ |
| 651 |
cerr << "cgRpos = " << cgRowData.position[i] << "\n"; |
| 652 |
} |
| 653 |
|
| 654 |
cgPlanVectorColumn->gather(snap_->cgData.position, |
| 655 |
cgColData.position); |
| 656 |
for (int i = 0; i < cgColData.position.size(); i++) |
| 657 |
{ |
| 658 |
cerr << "cgCpos = " << cgColData.position[i] << "\n"; |
| 659 |
} |
| 660 |
|
| 661 |
// if needed, gather the atomic rotation matrices |
| 662 |
if (storageLayout_ & DataStorage::dslAmat) |
| 663 |
{ |
| 664 |
AtomPlanMatrixRow->gather(snap_->atomData.aMat, |
| 665 |
atomRowData.aMat); |
| 666 |
AtomPlanMatrixColumn->gather(snap_->atomData.aMat, |
| 667 |
atomColData.aMat); |
| 668 |
} |
| 669 |
|
| 670 |
// if needed, gather the atomic eletrostatic frames |
| 671 |
if (storageLayout_ & DataStorage::dslElectroFrame) |
| 672 |
{ |
| 673 |
AtomPlanMatrixRow->gather(snap_->atomData.electroFrame, |
| 674 |
atomRowData.electroFrame); |
| 675 |
AtomPlanMatrixColumn->gather(snap_->atomData.electroFrame, |
| 676 |
atomColData.electroFrame); |
| 677 |
} |
| 678 |
|
| 679 |
#endif |
| 680 |
} |
| 681 |
|
| 682 |
/* collects information obtained during the pre-pair loop onto local |
| 683 |
* data structures. |
| 684 |
*/ |
| 685 |
void ForceMatrixDecomposition::collectIntermediateData() { |
| 686 |
snap_ = sman_->getCurrentSnapshot(); |
| 687 |
storageLayout_ = sman_->getStorageLayout(); |
| 688 |
#ifdef IS_MPI |
| 689 |
|
| 690 |
if (storageLayout_ & DataStorage::dslDensity) |
| 691 |
{ |
| 692 |
|
| 693 |
AtomPlanRealRow->scatter(atomRowData.density, |
| 694 |
snap_->atomData.density); |
| 695 |
|
| 696 |
int n = snap_->atomData.density.size(); |
| 697 |
vector<RealType> rho_tmp(n, 0.0); |
| 698 |
AtomPlanRealColumn->scatter(atomColData.density, rho_tmp); |
| 699 |
for (int i = 0; i < n; i++) |
| 700 |
snap_->atomData.density[i] += rho_tmp[i]; |
| 701 |
} |
| 702 |
#endif |
| 703 |
} |
| 704 |
|
| 705 |
/* |
| 706 |
* redistributes information obtained during the pre-pair loop out to |
| 707 |
* row and column-indexed data structures |
| 708 |
*/ |
| 709 |
void ForceMatrixDecomposition::distributeIntermediateData() { |
| 710 |
snap_ = sman_->getCurrentSnapshot(); |
| 711 |
storageLayout_ = sman_->getStorageLayout(); |
| 712 |
#ifdef IS_MPI |
| 713 |
if (storageLayout_ & DataStorage::dslFunctional) |
| 714 |
{ |
| 715 |
AtomPlanRealRow->gather(snap_->atomData.functional, |
| 716 |
atomRowData.functional); |
| 717 |
AtomPlanRealColumn->gather(snap_->atomData.functional, |
| 718 |
atomColData.functional); |
| 719 |
} |
| 720 |
|
| 721 |
if (storageLayout_ & DataStorage::dslFunctionalDerivative) |
| 722 |
{ |
| 723 |
AtomPlanRealRow->gather(snap_->atomData.functionalDerivative, |
| 724 |
atomRowData.functionalDerivative); |
| 725 |
AtomPlanRealColumn->gather(snap_->atomData.functionalDerivative, |
| 726 |
atomColData.functionalDerivative); |
| 727 |
} |
| 728 |
#endif |
| 729 |
} |
| 730 |
|
| 731 |
void ForceMatrixDecomposition::collectData() { |
| 732 |
snap_ = sman_->getCurrentSnapshot(); |
| 733 |
storageLayout_ = sman_->getStorageLayout(); |
| 734 |
#ifdef IS_MPI |
| 735 |
int n = snap_->atomData.force.size(); |
| 736 |
vector<Vector3d> frc_tmp(n, V3Zero); |
| 737 |
|
| 738 |
AtomPlanVectorRow->scatter(atomRowData.force, frc_tmp); |
| 739 |
for (int i = 0; i < n; i++) |
| 740 |
{ |
| 741 |
snap_->atomData.force[i] += frc_tmp[i]; |
| 742 |
frc_tmp[i] = 0.0; |
| 743 |
} |
| 744 |
|
| 745 |
AtomPlanVectorColumn->scatter(atomColData.force, frc_tmp); |
| 746 |
for (int i = 0; i < n; i++) |
| 747 |
{ |
| 748 |
snap_->atomData.force[i] += frc_tmp[i]; |
| 749 |
} |
| 750 |
|
| 751 |
if (storageLayout_ & DataStorage::dslTorque) |
| 752 |
{ |
| 753 |
|
| 754 |
int nt = snap_->atomData.torque.size(); |
| 755 |
vector<Vector3d> trq_tmp(nt, V3Zero); |
| 756 |
|
| 757 |
AtomPlanVectorRow->scatter(atomRowData.torque, trq_tmp); |
| 758 |
for (int i = 0; i < nt; i++) |
| 759 |
{ |
| 760 |
snap_->atomData.torque[i] += trq_tmp[i]; |
| 761 |
trq_tmp[i] = 0.0; |
| 762 |
} |
| 763 |
|
| 764 |
AtomPlanVectorColumn->scatter(atomColData.torque, trq_tmp); |
| 765 |
for (int i = 0; i < nt; i++) |
| 766 |
snap_->atomData.torque[i] += trq_tmp[i]; |
| 767 |
} |
| 768 |
|
| 769 |
if (storageLayout_ & DataStorage::dslSkippedCharge) |
| 770 |
{ |
| 771 |
|
| 772 |
int ns = snap_->atomData.skippedCharge.size(); |
| 773 |
vector<RealType> skch_tmp(ns, 0.0); |
| 774 |
|
| 775 |
AtomPlanRealRow->scatter(atomRowData.skippedCharge, skch_tmp); |
| 776 |
for (int i = 0; i < ns; i++) |
| 777 |
{ |
| 778 |
snap_->atomData.skippedCharge[i] += skch_tmp[i]; |
| 779 |
skch_tmp[i] = 0.0; |
| 780 |
} |
| 781 |
|
| 782 |
AtomPlanRealColumn->scatter(atomColData.skippedCharge, skch_tmp); |
| 783 |
for (int i = 0; i < ns; i++) |
| 784 |
snap_->atomData.skippedCharge[i] += skch_tmp[i]; |
| 785 |
} |
| 786 |
|
| 787 |
nLocal_ = snap_->getNumberOfAtoms(); |
| 788 |
|
| 789 |
vector<potVec> pot_temp(nLocal_, |
| 790 |
Vector<RealType, N_INTERACTION_FAMILIES> (0.0)); |
| 791 |
|
| 792 |
// scatter/gather pot_row into the members of my column |
| 793 |
|
| 794 |
AtomPlanPotRow->scatter(pot_row, pot_temp); |
| 795 |
|
| 796 |
for (int ii = 0; ii < pot_temp.size(); ii++ ) |
| 797 |
pairwisePot += pot_temp[ii]; |
| 798 |
|
| 799 |
fill(pot_temp.begin(), pot_temp.end(), |
| 800 |
Vector<RealType, N_INTERACTION_FAMILIES> (0.0)); |
| 801 |
|
| 802 |
AtomPlanPotColumn->scatter(pot_col, pot_temp); |
| 803 |
|
| 804 |
for (int ii = 0; ii < pot_temp.size(); ii++ ) |
| 805 |
pairwisePot += pot_temp[ii]; |
| 806 |
#endif |
| 807 |
|
| 808 |
// cerr << "pairwisePot = " << pairwisePot << "\n"; |
| 809 |
} |
| 810 |
|
| 811 |
int ForceMatrixDecomposition::getNAtomsInRow() { |
| 812 |
#ifdef IS_MPI |
| 813 |
return nAtomsInRow_; |
| 814 |
#else |
| 815 |
return nLocal_; |
| 816 |
#endif |
| 817 |
} |
| 818 |
|
| 819 |
/** |
| 820 |
* returns the list of atoms belonging to this group. |
| 821 |
*/ |
| 822 |
vector<int> ForceMatrixDecomposition::getAtomsInGroupRow(int cg1) { |
| 823 |
#ifdef IS_MPI |
| 824 |
return groupListRow_[cg1]; |
| 825 |
#else |
| 826 |
return groupList_[cg1]; |
| 827 |
#endif |
| 828 |
} |
| 829 |
|
| 830 |
vector<int> ForceMatrixDecomposition::getAtomsInGroupColumn(int cg2) { |
| 831 |
#ifdef IS_MPI |
| 832 |
return groupListCol_[cg2]; |
| 833 |
#else |
| 834 |
return groupList_[cg2]; |
| 835 |
#endif |
| 836 |
} |
| 837 |
|
| 838 |
Vector3d ForceMatrixDecomposition::getIntergroupVector(int cg1, int cg2) { |
| 839 |
Vector3d d; |
| 840 |
|
| 841 |
#ifdef IS_MPI |
| 842 |
d = cgColData.position[cg2] - cgRowData.position[cg1]; |
| 843 |
cerr << "cg1 = " << cg1 << "\tcg1p = " << cgRowData.position[cg1] << "\n"; |
| 844 |
cerr << "cg2 = " << cg2 << "\tcg2p = " << cgColData.position[cg2] << "\n"; |
| 845 |
#else |
| 846 |
d = snap_->cgData.position[cg2] - snap_->cgData.position[cg1]; |
| 847 |
cerr << "cg1 = " << cg1 << "\tcg1p = " << snap_->cgData.position[cg1] << "\n"; |
| 848 |
cerr << "cg2 = " << cg2 << "\tcg2p = " << snap_->cgData.position[cg2] << "\n"; |
| 849 |
#endif |
| 850 |
|
| 851 |
snap_->wrapVector(d); |
| 852 |
return d; |
| 853 |
} |
| 854 |
|
| 855 |
Vector3d ForceMatrixDecomposition::getIntergroupVector(CutoffGroup *cg1, CutoffGroup *cg2) { |
| 856 |
Vector3d d; |
| 857 |
|
| 858 |
d = snap_->cgData.position[cg2->getLocalIndex()] - snap_->cgData.position[cg1->getLocalIndex()]; |
| 859 |
/* cerr << "cg1_gid = " << cg1->getGlobalIndex() << "\tcg1_lid = " << cg1->getLocalIndex() << "\tcg1p = " |
| 860 |
<< snap_->cgData.position[cg1->getLocalIndex()] << "\n"; |
| 861 |
cerr << "cg2_gid = " << cg2->getGlobalIndex() << "\tcg2_lid = " << cg2->getLocalIndex() << "\tcg2p = " |
| 862 |
<< snap_->cgData.position[cg2->getLocalIndex()] << "\n";*/ |
| 863 |
|
| 864 |
snap_->wrapVector(d); |
| 865 |
return d; |
| 866 |
} |
| 867 |
|
| 868 |
Vector3d ForceMatrixDecomposition::getAtomToGroupVectorRow(int atom1, int cg1) { |
| 869 |
|
| 870 |
Vector3d d; |
| 871 |
|
| 872 |
#ifdef IS_MPI |
| 873 |
d = cgRowData.position[cg1] - atomRowData.position[atom1]; |
| 874 |
#else |
| 875 |
d = snap_->cgData.position[cg1] - snap_->atomData.position[atom1]; |
| 876 |
#endif |
| 877 |
|
| 878 |
snap_->wrapVector(d); |
| 879 |
return d; |
| 880 |
} |
| 881 |
|
| 882 |
Vector3d ForceMatrixDecomposition::getAtomToGroupVectorColumn(int atom2, int cg2) { |
| 883 |
Vector3d d; |
| 884 |
|
| 885 |
#ifdef IS_MPI |
| 886 |
d = cgColData.position[cg2] - atomColData.position[atom2]; |
| 887 |
#else |
| 888 |
d = snap_->cgData.position[cg2] - snap_->atomData.position[atom2]; |
| 889 |
#endif |
| 890 |
|
| 891 |
snap_->wrapVector(d); |
| 892 |
return d; |
| 893 |
} |
| 894 |
|
| 895 |
RealType ForceMatrixDecomposition::getMassFactorRow(int atom1) { |
| 896 |
#ifdef IS_MPI |
| 897 |
return massFactorsRow[atom1]; |
| 898 |
#else |
| 899 |
return massFactors[atom1]; |
| 900 |
#endif |
| 901 |
} |
| 902 |
|
| 903 |
RealType ForceMatrixDecomposition::getMassFactorColumn(int atom2) { |
| 904 |
#ifdef IS_MPI |
| 905 |
return massFactorsCol[atom2]; |
| 906 |
#else |
| 907 |
return massFactors[atom2]; |
| 908 |
#endif |
| 909 |
|
| 910 |
} |
| 911 |
|
| 912 |
Vector3d ForceMatrixDecomposition::getInteratomicVector(int atom1, int atom2) { |
| 913 |
Vector3d d; |
| 914 |
|
| 915 |
#ifdef IS_MPI |
| 916 |
d = atomColData.position[atom2] - atomRowData.position[atom1]; |
| 917 |
#else |
| 918 |
d = snap_->atomData.position[atom2] - snap_->atomData.position[atom1]; |
| 919 |
#endif |
| 920 |
|
| 921 |
snap_->wrapVector(d); |
| 922 |
return d; |
| 923 |
} |
| 924 |
|
| 925 |
vector<int> ForceMatrixDecomposition::getExcludesForAtom(int atom1) { |
| 926 |
return excludesForAtom[atom1]; |
| 927 |
} |
| 928 |
|
| 929 |
/** |
| 930 |
* We need to exclude some overcounted interactions that result from |
| 931 |
* the parallel decomposition. |
| 932 |
*/ |
| 933 |
bool ForceMatrixDecomposition::skipAtomPair(int atom1, int atom2) { |
| 934 |
int unique_id_1, unique_id_2; |
| 935 |
|
| 936 |
// cerr << "sap with atom1, atom2 =\t" << atom1 << "\t" << atom2 << "\n"; |
| 937 |
#ifdef IS_MPI |
| 938 |
// in MPI, we have to look up the unique IDs for each atom |
| 939 |
unique_id_1 = AtomRowToGlobal[atom1]; |
| 940 |
unique_id_2 = AtomColToGlobal[atom2]; |
| 941 |
|
| 942 |
cerr << "sap with uid1, uid2 =\t" << unique_id_1 << "\t" << unique_id_2 << "\n"; |
| 943 |
// this situation should only arise in MPI simulations |
| 944 |
if (unique_id_1 == unique_id_2) return true; |
| 945 |
|
| 946 |
// this prevents us from doing the pair on multiple processors |
| 947 |
if (unique_id_1 < unique_id_2) |
| 948 |
{ |
| 949 |
if ((unique_id_1 + unique_id_2) % 2 == 0) return true; |
| 950 |
} else |
| 951 |
{ |
| 952 |
if ((unique_id_1 + unique_id_2) % 2 == 1) return true; |
| 953 |
} |
| 954 |
#endif |
| 955 |
return false; |
| 956 |
} |
| 957 |
|
| 958 |
/** |
| 959 |
* We need to handle the interactions for atoms who are involved in |
| 960 |
* the same rigid body as well as some short range interactions |
| 961 |
* (bonds, bends, torsions) differently from other interactions. |
| 962 |
* We'll still visit the pairwise routines, but with a flag that |
| 963 |
* tells those routines to exclude the pair from direct long range |
| 964 |
* interactions. Some indirect interactions (notably reaction |
| 965 |
* field) must still be handled for these pairs. |
| 966 |
*/ |
| 967 |
bool ForceMatrixDecomposition::excludeAtomPair(int atom1, int atom2) { |
| 968 |
int unique_id_2; |
| 969 |
#ifdef IS_MPI |
| 970 |
// in MPI, we have to look up the unique IDs for the row atom. |
| 971 |
unique_id_2 = AtomColToGlobal[atom2]; |
| 972 |
#else |
| 973 |
// in the normal loop, the atom numbers are unique |
| 974 |
unique_id_2 = atom2; |
| 975 |
#endif |
| 976 |
|
| 977 |
for (vector<int>::iterator i = excludesForAtom[atom1].begin(); i != excludesForAtom[atom1].end(); ++i) |
| 978 |
{ |
| 979 |
if ((*i) == unique_id_2) |
| 980 |
return true; |
| 981 |
} |
| 982 |
|
| 983 |
return false; |
| 984 |
} |
| 985 |
|
| 986 |
void ForceMatrixDecomposition::addForceToAtomRow(int atom1, Vector3d fg) { |
| 987 |
#ifdef IS_MPI |
| 988 |
atomRowData.force[atom1] += fg; |
| 989 |
#else |
| 990 |
snap_->atomData.force[atom1] += fg; |
| 991 |
#endif |
| 992 |
} |
| 993 |
|
| 994 |
void ForceMatrixDecomposition::addForceToAtomColumn(int atom2, Vector3d fg) { |
| 995 |
#ifdef IS_MPI |
| 996 |
atomColData.force[atom2] += fg; |
| 997 |
#else |
| 998 |
snap_->atomData.force[atom2] += fg; |
| 999 |
#endif |
| 1000 |
} |
| 1001 |
|
| 1002 |
// filling interaction blocks with pointers |
| 1003 |
void ForceMatrixDecomposition::fillInteractionData(InteractionData &idat, int atom1, int atom2) { |
| 1004 |
|
| 1005 |
idat.excluded = excludeAtomPair(atom1, atom2); |
| 1006 |
|
| 1007 |
#ifdef IS_MPI |
| 1008 |
idat.atypes = make_pair( atypesRow[atom1], atypesCol[atom2]); |
| 1009 |
//idat.atypes = make_pair( ff_->getAtomType(identsRow[atom1]), |
| 1010 |
// ff_->getAtomType(identsCol[atom2]) ); |
| 1011 |
|
| 1012 |
if (storageLayout_ & DataStorage::dslAmat) |
| 1013 |
{ |
| 1014 |
idat.A1 = &(atomRowData.aMat[atom1]); |
| 1015 |
idat.A2 = &(atomColData.aMat[atom2]); |
| 1016 |
} |
| 1017 |
|
| 1018 |
if (storageLayout_ & DataStorage::dslElectroFrame) |
| 1019 |
{ |
| 1020 |
idat.eFrame1 = &(atomRowData.electroFrame[atom1]); |
| 1021 |
idat.eFrame2 = &(atomColData.electroFrame[atom2]); |
| 1022 |
} |
| 1023 |
|
| 1024 |
if (storageLayout_ & DataStorage::dslTorque) |
| 1025 |
{ |
| 1026 |
idat.t1 = &(atomRowData.torque[atom1]); |
| 1027 |
idat.t2 = &(atomColData.torque[atom2]); |
| 1028 |
} |
| 1029 |
|
| 1030 |
if (storageLayout_ & DataStorage::dslDensity) |
| 1031 |
{ |
| 1032 |
idat.rho1 = &(atomRowData.density[atom1]); |
| 1033 |
idat.rho2 = &(atomColData.density[atom2]); |
| 1034 |
} |
| 1035 |
|
| 1036 |
if (storageLayout_ & DataStorage::dslFunctional) |
| 1037 |
{ |
| 1038 |
idat.frho1 = &(atomRowData.functional[atom1]); |
| 1039 |
idat.frho2 = &(atomColData.functional[atom2]); |
| 1040 |
} |
| 1041 |
|
| 1042 |
if (storageLayout_ & DataStorage::dslFunctionalDerivative) |
| 1043 |
{ |
| 1044 |
idat.dfrho1 = &(atomRowData.functionalDerivative[atom1]); |
| 1045 |
idat.dfrho2 = &(atomColData.functionalDerivative[atom2]); |
| 1046 |
} |
| 1047 |
|
| 1048 |
if (storageLayout_ & DataStorage::dslParticlePot) |
| 1049 |
{ |
| 1050 |
idat.particlePot1 = &(atomRowData.particlePot[atom1]); |
| 1051 |
idat.particlePot2 = &(atomColData.particlePot[atom2]); |
| 1052 |
} |
| 1053 |
|
| 1054 |
if (storageLayout_ & DataStorage::dslSkippedCharge) |
| 1055 |
{ |
| 1056 |
idat.skippedCharge1 = &(atomRowData.skippedCharge[atom1]); |
| 1057 |
idat.skippedCharge2 = &(atomColData.skippedCharge[atom2]); |
| 1058 |
} |
| 1059 |
|
| 1060 |
#else |
| 1061 |
|
| 1062 |
idat.atypes = make_pair(atypesLocal[atom1], atypesLocal[atom2]); |
| 1063 |
//idat.atypes = make_pair( ff_->getAtomType(idents[atom1]), |
| 1064 |
// ff_->getAtomType(idents[atom2]) ); |
| 1065 |
|
| 1066 |
if (storageLayout_ & DataStorage::dslAmat) |
| 1067 |
{ |
| 1068 |
idat.A1 = &(snap_->atomData.aMat[atom1]); |
| 1069 |
idat.A2 = &(snap_->atomData.aMat[atom2]); |
| 1070 |
} |
| 1071 |
|
| 1072 |
if (storageLayout_ & DataStorage::dslElectroFrame) |
| 1073 |
{ |
| 1074 |
idat.eFrame1 = &(snap_->atomData.electroFrame[atom1]); |
| 1075 |
idat.eFrame2 = &(snap_->atomData.electroFrame[atom2]); |
| 1076 |
} |
| 1077 |
|
| 1078 |
if (storageLayout_ & DataStorage::dslTorque) |
| 1079 |
{ |
| 1080 |
idat.t1 = &(snap_->atomData.torque[atom1]); |
| 1081 |
idat.t2 = &(snap_->atomData.torque[atom2]); |
| 1082 |
} |
| 1083 |
|
| 1084 |
if (storageLayout_ & DataStorage::dslDensity) |
| 1085 |
{ |
| 1086 |
idat.rho1 = &(snap_->atomData.density[atom1]); |
| 1087 |
idat.rho2 = &(snap_->atomData.density[atom2]); |
| 1088 |
} |
| 1089 |
|
| 1090 |
if (storageLayout_ & DataStorage::dslFunctional) |
| 1091 |
{ |
| 1092 |
idat.frho1 = &(snap_->atomData.functional[atom1]); |
| 1093 |
idat.frho2 = &(snap_->atomData.functional[atom2]); |
| 1094 |
} |
| 1095 |
|
| 1096 |
if (storageLayout_ & DataStorage::dslFunctionalDerivative) |
| 1097 |
{ |
| 1098 |
idat.dfrho1 = &(snap_->atomData.functionalDerivative[atom1]); |
| 1099 |
idat.dfrho2 = &(snap_->atomData.functionalDerivative[atom2]); |
| 1100 |
} |
| 1101 |
|
| 1102 |
if (storageLayout_ & DataStorage::dslParticlePot) |
| 1103 |
{ |
| 1104 |
idat.particlePot1 = &(snap_->atomData.particlePot[atom1]); |
| 1105 |
idat.particlePot2 = &(snap_->atomData.particlePot[atom2]); |
| 1106 |
} |
| 1107 |
|
| 1108 |
if (storageLayout_ & DataStorage::dslSkippedCharge) |
| 1109 |
{ |
| 1110 |
idat.skippedCharge1 = &(snap_->atomData.skippedCharge[atom1]); |
| 1111 |
idat.skippedCharge2 = &(snap_->atomData.skippedCharge[atom2]); |
| 1112 |
} |
| 1113 |
#endif |
| 1114 |
} |
| 1115 |
|
| 1116 |
void ForceMatrixDecomposition::unpackInteractionData(InteractionData &idat, int atom1, int atom2) { |
| 1117 |
#ifdef IS_MPI |
| 1118 |
pot_row[atom1] += 0.5 * *(idat.pot); |
| 1119 |
pot_col[atom2] += 0.5 * *(idat.pot); |
| 1120 |
|
| 1121 |
atomRowData.force[atom1] += *(idat.f1); |
| 1122 |
atomColData.force[atom2] -= *(idat.f1); |
| 1123 |
#else |
| 1124 |
pairwisePot += *(idat.pot); |
| 1125 |
|
| 1126 |
snap_->atomData.force[atom1] += *(idat.f1); |
| 1127 |
snap_->atomData.force[atom2] -= *(idat.f1); |
| 1128 |
#endif |
| 1129 |
|
| 1130 |
} |
| 1131 |
|
| 1132 |
void ForceMatrixDecomposition::reorderGroupCutoffs(vector<int> &order) { |
| 1133 |
vector<int> tmp = vector<int> (groupToGtype.size()); |
| 1134 |
|
| 1135 |
for (int i = 0; i < groupToGtype.size(); ++i) |
| 1136 |
{ |
| 1137 |
tmp[i] = groupToGtype[i]; |
| 1138 |
} |
| 1139 |
|
| 1140 |
for (int i = 0; i < groupToGtype.size(); ++i) |
| 1141 |
{ |
| 1142 |
groupToGtype[i] = tmp[order[i]]; |
| 1143 |
} |
| 1144 |
} |
| 1145 |
|
| 1146 |
void ForceMatrixDecomposition::reorderPosition(vector<int> &order) { |
| 1147 |
Snapshot* snap_ = info_->getSnapshotManager()->getCurrentSnapshot(); |
| 1148 |
DataStorage* cgConfig = &(snap_->cgData); |
| 1149 |
vector<Vector3d> tmp = vector<Vector3d> (nGroups_); |
| 1150 |
|
| 1151 |
for (int i = 0; i < nGroups_; ++i) |
| 1152 |
{ |
| 1153 |
tmp[i] = snap_->cgData.position[i]; |
| 1154 |
} |
| 1155 |
|
| 1156 |
vector<int> mapPos = vector<int> (nGroups_); |
| 1157 |
for (int i = 0; i < nGroups_; ++i) |
| 1158 |
{ |
| 1159 |
snap_->cgData.position[i] = tmp[order[i]]; |
| 1160 |
mapPos[order[i]] = i; |
| 1161 |
} |
| 1162 |
|
| 1163 |
SimInfo::MoleculeIterator mi; |
| 1164 |
Molecule* mol; |
| 1165 |
Molecule::CutoffGroupIterator ci; |
| 1166 |
CutoffGroup* cg; |
| 1167 |
|
| 1168 |
for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) |
| 1169 |
{ |
| 1170 |
for (cg = mol->beginCutoffGroup(ci); cg != NULL; cg = mol->nextCutoffGroup(ci)) |
| 1171 |
{ |
| 1172 |
cg->setLocalIndex(mapPos[cg->getLocalIndex()]); |
| 1173 |
} |
| 1174 |
} |
| 1175 |
|
| 1176 |
/* if (info_->getNCutoffGroups() > 0) |
| 1177 |
{ |
| 1178 |
for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) |
| 1179 |
{ |
| 1180 |
for (cg = mol->beginCutoffGroup(ci); cg != NULL; cg = mol->nextCutoffGroup(ci)) |
| 1181 |
{ |
| 1182 |
printf("gbI:%d locI:%d x:%f y:%f z:%f\n", cg->getGlobalIndex(), cg->getLocalIndex(), |
| 1183 |
cgConfig->position[cg->getLocalIndex()].x(), cgConfig->position[cg->getLocalIndex()].y(), |
| 1184 |
cgConfig->position[cg->getLocalIndex()].z()); |
| 1185 |
} |
| 1186 |
} |
| 1187 |
} else |
| 1188 |
{ |
| 1189 |
// center of mass of the group is the same as position of the atom |
| 1190 |
// if cutoff group does not exist |
| 1191 |
printf("ERROR!!!!!!!!!!!!!!!!!!!!!!!!!!!\n"); |
| 1192 |
// cgConfig->position = config->position; |
| 1193 |
}*/ |
| 1194 |
} |
| 1195 |
|
| 1196 |
void ForceMatrixDecomposition::reorderGroupList(vector<int> &order) { |
| 1197 |
vector<vector<int> > tmp = vector<vector<int> > (groupList_.size()); |
| 1198 |
|
| 1199 |
for (int i = 0; i < groupList_.size(); ++i) |
| 1200 |
{ |
| 1201 |
tmp[i] = groupList_[i]; |
| 1202 |
} |
| 1203 |
|
| 1204 |
for (int i = 0; i < groupList_.size(); ++i) |
| 1205 |
{ |
| 1206 |
groupList_[i] = tmp[order[i]]; |
| 1207 |
} |
| 1208 |
} |
| 1209 |
|
| 1210 |
void ForceMatrixDecomposition::reorderMemory(vector<vector<CutoffGroup *> > &H_c_l) { |
| 1211 |
int n = 0; |
| 1212 |
// printf("Reorder memory time:%f!!!!!!!!!!!!!!!!!!!!!!!!!!!\n", |
| 1213 |
// info_->getSnapshotManager()->getCurrentSnapshot()->getTime()); |
| 1214 |
|
| 1215 |
/* record the reordered atom indices */ |
| 1216 |
vector<int> k = vector<int> (nGroups_); |
| 1217 |
|
| 1218 |
for (int c = 0; c < H_c_l.size(); ++c) |
| 1219 |
{ |
| 1220 |
for (vector<CutoffGroup *>::iterator cg = H_c_l[c].begin(); cg != H_c_l[c].end(); ++cg) |
| 1221 |
{ |
| 1222 |
int i = (*cg)->getGlobalIndex(); |
| 1223 |
k[n] = i; |
| 1224 |
++n; |
| 1225 |
} |
| 1226 |
} |
| 1227 |
|
| 1228 |
// reorderGroupCutoffs(k); |
| 1229 |
// reorderGroupList(k); |
| 1230 |
reorderPosition(k); |
| 1231 |
} |
| 1232 |
|
| 1233 |
vector<vector<CutoffGroup *> > ForceMatrixDecomposition::buildLayerBasedNeighborList() { |
| 1234 |
// printf("buildLayerBasedNeighborList; nGroups:%d\n", nGroups_); |
| 1235 |
// Na = nGroups_ |
| 1236 |
/* cell occupancy counter */ |
| 1237 |
// vector<int> k_c; |
| 1238 |
/* c_i - has cell containing atom i (size Na) */ |
| 1239 |
vector<int> c = vector<int> (nGroups_); |
| 1240 |
/* l_i - layer containing atom i (size Na) */ |
| 1241 |
// vector<int> l; |
| 1242 |
|
| 1243 |
RealType rList_ = (largestRcut_ + skinThickness_); |
| 1244 |
Snapshot* snap_ = sman_->getCurrentSnapshot(); |
| 1245 |
Mat3x3d Hmat = snap_->getHmat(); |
| 1246 |
Vector3d Hx = Hmat.getColumn(0); |
| 1247 |
Vector3d Hy = Hmat.getColumn(1); |
| 1248 |
Vector3d Hz = Hmat.getColumn(2); |
| 1249 |
|
| 1250 |
nCells_.x() = (int) (Hx.length()) / rList_; |
| 1251 |
nCells_.y() = (int) (Hy.length()) / rList_; |
| 1252 |
nCells_.z() = (int) (Hz.length()) / rList_; |
| 1253 |
|
| 1254 |
Mat3x3d invHmat = snap_->getInvHmat(); |
| 1255 |
Vector3d rs, scaled, dr; |
| 1256 |
Vector3i whichCell; |
| 1257 |
int cellIndex; |
| 1258 |
int nCtot = nCells_.x() * nCells_.y() * nCells_.z(); |
| 1259 |
|
| 1260 |
// k_c = vector<int> (nCtot, 0); |
| 1261 |
|
| 1262 |
SimInfo::MoleculeIterator mi; |
| 1263 |
Molecule* mol; |
| 1264 |
Molecule::CutoffGroupIterator ci; |
| 1265 |
CutoffGroup* cg; |
| 1266 |
|
| 1267 |
for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) |
| 1268 |
{ |
| 1269 |
for (cg = mol->beginCutoffGroup(ci); cg != NULL; cg = mol->nextCutoffGroup(ci)) |
| 1270 |
{ |
| 1271 |
rs = snap_->cgData.position[cg->getLocalIndex()]; |
| 1272 |
|
| 1273 |
// scaled positions relative to the box vectors |
| 1274 |
scaled = invHmat * rs; |
| 1275 |
|
| 1276 |
// wrap the vector back into the unit box by subtracting integer box |
| 1277 |
// numbers |
| 1278 |
for (int j = 0; j < 3; j++) |
| 1279 |
{ |
| 1280 |
scaled[j] -= roundMe(scaled[j]); |
| 1281 |
scaled[j] += 0.5; |
| 1282 |
} |
| 1283 |
|
| 1284 |
// find xyz-indices of cell that cutoffGroup is in. |
| 1285 |
whichCell.x() = nCells_.x() * scaled.x(); |
| 1286 |
whichCell.y() = nCells_.y() * scaled.y(); |
| 1287 |
whichCell.z() = nCells_.z() * scaled.z(); |
| 1288 |
|
| 1289 |
// printf("pos x:%f y:%f z:%f cell x:%d y:%d z:%d\n", rs.x(), rs.y(), rs.z(), whichCell.x(), whichCell.y(), |
| 1290 |
// whichCell.z()); |
| 1291 |
|
| 1292 |
// find single index of this cell: |
| 1293 |
cellIndex = Vlinear(whichCell, nCells_); |
| 1294 |
|
| 1295 |
c[cg->getGlobalIndex()] = cellIndex; |
| 1296 |
} |
| 1297 |
} |
| 1298 |
|
| 1299 |
// int k_c_curr; |
| 1300 |
// int k_c_max = 0; |
| 1301 |
/* the cell-layer occupancy matrix */ |
| 1302 |
vector<vector<CutoffGroup *> > H_c_l = vector<vector<CutoffGroup *> > (nCtot); |
| 1303 |
|
| 1304 |
for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) |
| 1305 |
{ |
| 1306 |
for (cg = mol->beginCutoffGroup(ci); cg != NULL; cg = mol->nextCutoffGroup(ci)) |
| 1307 |
|
| 1308 |
{ |
| 1309 |
// k_c_curr = ++k_c[c[cg1->getGlobalIndex()]]; |
| 1310 |
// l.push_back(k_c_curr); |
| 1311 |
// |
| 1312 |
// /* determines the number of layers in use */ |
| 1313 |
// if (k_c_max < k_c_curr) |
| 1314 |
// { |
| 1315 |
// k_c_max = k_c_curr; |
| 1316 |
// } |
| 1317 |
H_c_l[c[cg->getGlobalIndex()]].push_back(/*l[*/cg/*]*/); |
| 1318 |
} |
| 1319 |
} |
| 1320 |
|
| 1321 |
/* Frequency of reordering the memory */ |
| 1322 |
if (neighborListReorderFreq != 0) |
| 1323 |
{ |
| 1324 |
if (reorderFreqCounter == neighborListReorderFreq) |
| 1325 |
{ |
| 1326 |
//printf("neighborListReorderFreq:%d\n", neighborListReorderFreq); |
| 1327 |
reorderMemory(H_c_l); |
| 1328 |
reorderFreqCounter = 1; |
| 1329 |
} else |
| 1330 |
{ |
| 1331 |
reorderFreqCounter++; |
| 1332 |
} |
| 1333 |
} |
| 1334 |
|
| 1335 |
int m; |
| 1336 |
/* the neighbor matrix */ |
| 1337 |
vector<vector<CutoffGroup *> > neighborMatW = vector<vector<CutoffGroup *> > (nGroups_); |
| 1338 |
|
| 1339 |
groupCutoffs cuts; |
| 1340 |
CutoffGroup *cg1; |
| 1341 |
|
| 1342 |
/* loops over objects(atoms, rigidBodies, cutoffGroups, etc.) */ |
| 1343 |
for (mol = info_->beginMolecule(mi); mol != NULL; mol = info_->nextMolecule(mi)) |
| 1344 |
{ |
| 1345 |
for (cg1 = mol->beginCutoffGroup(ci); cg1 != NULL; cg1 = mol->nextCutoffGroup(ci)) |
| 1346 |
{ |
| 1347 |
/* c' */ |
| 1348 |
int c1 = c[cg1->getGlobalIndex()]; |
| 1349 |
Vector3i c1v = idxToV(c1, nCells_); |
| 1350 |
|
| 1351 |
/* loops over the neighboring cells c'' */ |
| 1352 |
for (vector<Vector3i>::iterator os = cellOffsets_.begin(); os != cellOffsets_.end(); ++os) |
| 1353 |
{ |
| 1354 |
Vector3i c2v = c1v + (*os); |
| 1355 |
|
| 1356 |
if (c2v.x() >= nCells_.x()) |
| 1357 |
{ |
| 1358 |
c2v.x() = 0; |
| 1359 |
} else if (c2v.x() < 0) |
| 1360 |
{ |
| 1361 |
c2v.x() = nCells_.x() - 1; |
| 1362 |
} |
| 1363 |
|
| 1364 |
if (c2v.y() >= nCells_.y()) |
| 1365 |
{ |
| 1366 |
c2v.y() = 0; |
| 1367 |
} else if (c2v.y() < 0) |
| 1368 |
{ |
| 1369 |
c2v.y() = nCells_.y() - 1; |
| 1370 |
} |
| 1371 |
|
| 1372 |
if (c2v.z() >= nCells_.z()) |
| 1373 |
{ |
| 1374 |
c2v.z() = 0; |
| 1375 |
} else if (c2v.z() < 0) |
| 1376 |
{ |
| 1377 |
c2v.z() = nCells_.z() - 1; |
| 1378 |
} |
| 1379 |
|
| 1380 |
int c2 = Vlinear(c2v, nCells_); |
| 1381 |
/* loops over layers l to access the neighbor atoms */ |
| 1382 |
for (vector<CutoffGroup *>::iterator cg2 = H_c_l[c2].begin(); cg2 != H_c_l[c2].end(); ++cg2) |
| 1383 |
{ |
| 1384 |
// if i'' = 0 then break // doesn't apply to vector implementation of matrix |
| 1385 |
// if(i != *j) |
| 1386 |
if (c2 != c1 || (*cg2)->getGlobalIndex() < cg1->getGlobalIndex()) |
| 1387 |
{ |
| 1388 |
dr = snap_->cgData.position[(*cg2)->getLocalIndex()] - snap_->cgData.position[cg1->getLocalIndex()]; |
| 1389 |
snap_->wrapVector(dr); |
| 1390 |
cuts = getGroupCutoffs(cg1->getGlobalIndex(), (*cg2)->getGlobalIndex()); |
| 1391 |
if (dr.lengthSquare() < cuts.third) |
| 1392 |
{ |
| 1393 |
/* transposed version of Rapaport W mat, to occupy successive memory locations on CPU */ |
| 1394 |
neighborMatW[cg1->getGlobalIndex()].push_back((*cg2)); |
| 1395 |
} |
| 1396 |
} |
| 1397 |
} |
| 1398 |
} |
| 1399 |
} |
| 1400 |
} |
| 1401 |
|
| 1402 |
// save the local cutoff group positions for the check that is |
| 1403 |
// done on each loop: |
| 1404 |
saved_CG_positions_.clear(); |
| 1405 |
for (int i = 0; i < nGroups_; i++) |
| 1406 |
saved_CG_positions_.push_back(snap_->cgData.position[i]); |
| 1407 |
|
| 1408 |
return neighborMatW; |
| 1409 |
} |
| 1410 |
|
| 1411 |
/* |
| 1412 |
* buildNeighborList |
| 1413 |
* |
| 1414 |
* first element of pair is row-indexed CutoffGroup |
| 1415 |
* second element of pair is column-indexed CutoffGroup |
| 1416 |
*/ |
| 1417 |
vector<pair<int, int> > ForceMatrixDecomposition::buildNeighborList() { |
| 1418 |
|
| 1419 |
vector<pair<int, int> > neighborList; |
| 1420 |
groupCutoffs cuts; |
| 1421 |
bool doAllPairs = false; |
| 1422 |
|
| 1423 |
#ifdef IS_MPI |
| 1424 |
cellListRow_.clear(); |
| 1425 |
cellListCol_.clear(); |
| 1426 |
#else |
| 1427 |
cellList_.clear(); |
| 1428 |
#endif |
| 1429 |
|
| 1430 |
RealType rList_ = (largestRcut_ + skinThickness_); |
| 1431 |
RealType rl2 = rList_ * rList_; |
| 1432 |
Snapshot* snap_ = sman_->getCurrentSnapshot(); |
| 1433 |
Mat3x3d Hmat = snap_->getHmat(); |
| 1434 |
Vector3d Hx = Hmat.getColumn(0); |
| 1435 |
Vector3d Hy = Hmat.getColumn(1); |
| 1436 |
Vector3d Hz = Hmat.getColumn(2); |
| 1437 |
|
| 1438 |
nCells_.x() = (int) (Hx.length()) / rList_; |
| 1439 |
nCells_.y() = (int) (Hy.length()) / rList_; |
| 1440 |
nCells_.z() = (int) (Hz.length()) / rList_; |
| 1441 |
|
| 1442 |
// handle small boxes where the cell offsets can end up repeating cells |
| 1443 |
|
| 1444 |
if (nCells_.x() < 3) |
| 1445 |
doAllPairs = true; |
| 1446 |
if (nCells_.y() < 3) |
| 1447 |
doAllPairs = true; |
| 1448 |
if (nCells_.z() < 3) |
| 1449 |
doAllPairs = true; |
| 1450 |
|
| 1451 |
Mat3x3d invHmat = snap_->getInvHmat(); |
| 1452 |
Vector3d rs, scaled, dr; |
| 1453 |
Vector3i whichCell; |
| 1454 |
int cellIndex; |
| 1455 |
int nCtot = nCells_.x() * nCells_.y() * nCells_.z(); |
| 1456 |
|
| 1457 |
#ifdef IS_MPI |
| 1458 |
cellListRow_.resize(nCtot); |
| 1459 |
cellListCol_.resize(nCtot); |
| 1460 |
#else |
| 1461 |
cellList_.resize(nCtot); |
| 1462 |
#endif |
| 1463 |
|
| 1464 |
if (!doAllPairs) |
| 1465 |
{ |
| 1466 |
#ifdef IS_MPI |
| 1467 |
|
| 1468 |
for (int i = 0; i < nGroupsInRow_; i++) |
| 1469 |
{ |
| 1470 |
rs = cgRowData.position[i]; |
| 1471 |
|
| 1472 |
// scaled positions relative to the box vectors |
| 1473 |
scaled = invHmat * rs; |
| 1474 |
|
| 1475 |
// wrap the vector back into the unit box by subtracting integer box |
| 1476 |
// numbers |
| 1477 |
for (int j = 0; j < 3; j++) |
| 1478 |
{ |
| 1479 |
scaled[j] -= roundMe(scaled[j]); |
| 1480 |
scaled[j] += 0.5; |
| 1481 |
} |
| 1482 |
|
| 1483 |
// find xyz-indices of cell that cutoffGroup is in. |
| 1484 |
whichCell.x() = nCells_.x() * scaled.x(); |
| 1485 |
whichCell.y() = nCells_.y() * scaled.y(); |
| 1486 |
whichCell.z() = nCells_.z() * scaled.z(); |
| 1487 |
|
| 1488 |
// find single index of this cell: |
| 1489 |
cellIndex = Vlinear(whichCell, nCells_); |
| 1490 |
|
| 1491 |
// add this cutoff group to the list of groups in this cell; |
| 1492 |
cellListRow_[cellIndex].push_back(i); |
| 1493 |
} |
| 1494 |
for (int i = 0; i < nGroupsInCol_; i++) |
| 1495 |
{ |
| 1496 |
rs = cgColData.position[i]; |
| 1497 |
|
| 1498 |
// scaled positions relative to the box vectors |
| 1499 |
scaled = invHmat * rs; |
| 1500 |
|
| 1501 |
// wrap the vector back into the unit box by subtracting integer box |
| 1502 |
// numbers |
| 1503 |
for (int j = 0; j < 3; j++) |
| 1504 |
{ |
| 1505 |
scaled[j] -= roundMe(scaled[j]); |
| 1506 |
scaled[j] += 0.5; |
| 1507 |
} |
| 1508 |
|
| 1509 |
// find xyz-indices of cell that cutoffGroup is in. |
| 1510 |
whichCell.x() = nCells_.x() * scaled.x(); |
| 1511 |
whichCell.y() = nCells_.y() * scaled.y(); |
| 1512 |
whichCell.z() = nCells_.z() * scaled.z(); |
| 1513 |
|
| 1514 |
// find single index of this cell: |
| 1515 |
cellIndex = Vlinear(whichCell, nCells_); |
| 1516 |
|
| 1517 |
// add this cutoff group to the list of groups in this cell; |
| 1518 |
cellListCol_[cellIndex].push_back(i); |
| 1519 |
} |
| 1520 |
#else |
| 1521 |
for (int i = 0; i < nGroups_; i++) |
| 1522 |
{ |
| 1523 |
rs = snap_->cgData.position[i]; |
| 1524 |
|
| 1525 |
// scaled positions relative to the box vectors |
| 1526 |
scaled = invHmat * rs; |
| 1527 |
|
| 1528 |
// wrap the vector back into the unit box by subtracting integer box |
| 1529 |
// numbers |
| 1530 |
for (int j = 0; j < 3; j++) |
| 1531 |
{ |
| 1532 |
scaled[j] -= roundMe(scaled[j]); |
| 1533 |
scaled[j] += 0.5; |
| 1534 |
} |
| 1535 |
|
| 1536 |
// find xyz-indices of cell that cutoffGroup is in. |
| 1537 |
whichCell.x() = nCells_.x() * scaled.x(); |
| 1538 |
whichCell.y() = nCells_.y() * scaled.y(); |
| 1539 |
whichCell.z() = nCells_.z() * scaled.z(); |
| 1540 |
|
| 1541 |
// find single index of this cell: |
| 1542 |
cellIndex = Vlinear(whichCell, nCells_); |
| 1543 |
|
| 1544 |
// add this cutoff group to the list of groups in this cell; |
| 1545 |
cellList_[cellIndex].push_back(i); |
| 1546 |
} |
| 1547 |
#endif |
| 1548 |
|
| 1549 |
for (int m1z = 0; m1z < nCells_.z(); m1z++) |
| 1550 |
{ |
| 1551 |
for (int m1y = 0; m1y < nCells_.y(); m1y++) |
| 1552 |
{ |
| 1553 |
for (int m1x = 0; m1x < nCells_.x(); m1x++) |
| 1554 |
{ |
| 1555 |
Vector3i m1v(m1x, m1y, m1z); |
| 1556 |
int m1 = Vlinear(m1v, nCells_); |
| 1557 |
|
| 1558 |
for (vector<Vector3i>::iterator os = cellOffsets_.begin(); os != cellOffsets_.end(); ++os) |
| 1559 |
{ |
| 1560 |
|
| 1561 |
Vector3i m2v = m1v + (*os); |
| 1562 |
|
| 1563 |
if (m2v.x() >= nCells_.x()) |
| 1564 |
{ |
| 1565 |
m2v.x() = 0; |
| 1566 |
} else if (m2v.x() < 0) |
| 1567 |
{ |
| 1568 |
m2v.x() = nCells_.x() - 1; |
| 1569 |
} |
| 1570 |
|
| 1571 |
if (m2v.y() >= nCells_.y()) |
| 1572 |
{ |
| 1573 |
m2v.y() = 0; |
| 1574 |
} else if (m2v.y() < 0) |
| 1575 |
{ |
| 1576 |
m2v.y() = nCells_.y() - 1; |
| 1577 |
} |
| 1578 |
|
| 1579 |
if (m2v.z() >= nCells_.z()) |
| 1580 |
{ |
| 1581 |
m2v.z() = 0; |
| 1582 |
} else if (m2v.z() < 0) |
| 1583 |
{ |
| 1584 |
m2v.z() = nCells_.z() - 1; |
| 1585 |
} |
| 1586 |
|
| 1587 |
int m2 = Vlinear(m2v, nCells_); |
| 1588 |
|
| 1589 |
#ifdef IS_MPI |
| 1590 |
for (vector<int>::iterator j1 = cellListRow_[m1].begin(); |
| 1591 |
j1 != cellListRow_[m1].end(); ++j1) |
| 1592 |
{ |
| 1593 |
for (vector<int>::iterator j2 = cellListCol_[m2].begin(); |
| 1594 |
j2 != cellListCol_[m2].end(); ++j2) |
| 1595 |
{ |
| 1596 |
|
| 1597 |
// In parallel, we need to visit *all* pairs of row & |
| 1598 |
// column indicies and will truncate later on. |
| 1599 |
dr = cgColData.position[(*j2)] - cgRowData.position[(*j1)]; |
| 1600 |
snap_->wrapVector(dr); |
| 1601 |
cuts = getGroupCutoffs( (*j1), (*j2) ); |
| 1602 |
if (dr.lengthSquare() < cuts.third) |
| 1603 |
{ |
| 1604 |
neighborList.push_back(make_pair((*j1), (*j2))); |
| 1605 |
} |
| 1606 |
} |
| 1607 |
} |
| 1608 |
#else |
| 1609 |
|
| 1610 |
for (vector<int>::iterator j1 = cellList_[m1].begin(); j1 != cellList_[m1].end(); ++j1) |
| 1611 |
{ |
| 1612 |
for (vector<int>::iterator j2 = cellList_[m2].begin(); j2 != cellList_[m2].end(); ++j2) |
| 1613 |
{ |
| 1614 |
|
| 1615 |
// Always do this if we're in different cells or if |
| 1616 |
// we're in the same cell and the global index of the |
| 1617 |
// j2 cutoff group is less than the j1 cutoff group |
| 1618 |
|
| 1619 |
if (m2 != m1 || (*j2) < (*j1)) |
| 1620 |
{ |
| 1621 |
dr = snap_->cgData.position[(*j2)] - snap_->cgData.position[(*j1)]; |
| 1622 |
snap_->wrapVector(dr); |
| 1623 |
cuts = getGroupCutoffs((*j1), (*j2)); |
| 1624 |
if (dr.lengthSquare() < cuts.third) |
| 1625 |
{ |
| 1626 |
neighborList.push_back(make_pair((*j1), (*j2))); |
| 1627 |
} |
| 1628 |
} |
| 1629 |
} |
| 1630 |
} |
| 1631 |
#endif |
| 1632 |
} |
| 1633 |
} |
| 1634 |
} |
| 1635 |
} |
| 1636 |
} else |
| 1637 |
{ |
| 1638 |
// branch to do all cutoff group pairs |
| 1639 |
#ifdef IS_MPI |
| 1640 |
for (int j1 = 0; j1 < nGroupsInRow_; j1++) |
| 1641 |
{ |
| 1642 |
for (int j2 = 0; j2 < nGroupsInCol_; j2++) |
| 1643 |
{ |
| 1644 |
dr = cgColData.position[j2] - cgRowData.position[j1]; |
| 1645 |
snap_->wrapVector(dr); |
| 1646 |
cuts = getGroupCutoffs( j1, j2 ); |
| 1647 |
if (dr.lengthSquare() < cuts.third) |
| 1648 |
{ |
| 1649 |
neighborList.push_back(make_pair(j1, j2)); |
| 1650 |
} |
| 1651 |
} |
| 1652 |
} |
| 1653 |
#else |
| 1654 |
for (int j1 = 0; j1 < nGroups_ - 1; j1++) |
| 1655 |
{ |
| 1656 |
for (int j2 = j1 + 1; j2 < nGroups_; j2++) |
| 1657 |
{ |
| 1658 |
dr = snap_->cgData.position[j2] - snap_->cgData.position[j1]; |
| 1659 |
snap_->wrapVector(dr); |
| 1660 |
cuts = getGroupCutoffs(j1, j2); |
| 1661 |
if (dr.lengthSquare() < cuts.third) |
| 1662 |
{ |
| 1663 |
neighborList.push_back(make_pair(j1, j2)); |
| 1664 |
} |
| 1665 |
} |
| 1666 |
} |
| 1667 |
#endif |
| 1668 |
} |
| 1669 |
|
| 1670 |
// save the local cutoff group positions for the check that is |
| 1671 |
// done on each loop: |
| 1672 |
saved_CG_positions_.clear(); |
| 1673 |
for (int i = 0; i < nGroups_; i++) |
| 1674 |
saved_CG_positions_.push_back(snap_->cgData.position[i]); |
| 1675 |
|
| 1676 |
return neighborList; |
| 1677 |
} |
| 1678 |
} //end namespace OpenMD |
