1 | /*! |
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2 | \file generic_algorithm_transformation.hpp |
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3 | \author Ha NGUYEN |
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4 | \since 14 May 2015 |
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5 | \date 29 June 2015 |
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6 | |
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7 | \brief Interface for all transformation algorithms. |
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8 | */ |
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9 | #include "generic_algorithm_transformation.hpp" |
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10 | |
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11 | namespace xios { |
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12 | |
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13 | CGenericAlgorithmTransformation::CGenericAlgorithmTransformation() |
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14 | : transformationMapping_(), transformationWeight_() |
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15 | { |
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16 | } |
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17 | |
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18 | /*! |
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19 | This function computes the global indexes of grid source, which the grid destination is in demand. |
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20 | \param[in] elementPositionInGrid position of an element in a grid .E.g: if grid is composed of domain and axis (in order), |
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21 | then position of axis in grid is 2 (since a domain is considered to contain 2 elements (axis) |
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22 | \param[in] gridDestGlobalDim global size of each dimension of grid source (all dimension must have the same size except of the one on which transformation is performed) |
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23 | \param[in] gridSrcGlobalDim dimension size of source grid (it should share the same size for all dimension, maybe except the domain on which transformation is performed) |
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24 | \param[in] globalIndexGridDestSendToServer global index of grid destination on the current client to send to server |
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25 | \param[in/out] globaIndexWeightFromDestToSource mapping between transformed global index of grid destination |
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26 | and the weighted value as long as global index from grid index source |
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27 | */ |
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28 | void CGenericAlgorithmTransformation::computeGlobalSourceIndex(int elementPositionInGrid, |
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29 | const std::vector<int>& gridDestGlobalDim, |
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30 | const std::vector<int>& gridSrcGlobalDim, |
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31 | const std::vector<size_t>& globalIndexGridDestSendToServer, |
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32 | std::map<size_t, std::vector<std::pair<size_t,double> > >& globaIndexWeightFromDestToSource) |
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33 | { |
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34 | std::map<int, std::vector<int> >::const_iterator itbTransMap = transformationMapping_.begin(), itTransMap, |
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35 | iteTransMap = transformationMapping_.end(); |
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36 | std::map<int, std::vector<double> >::const_iterator itTransWeight = transformationWeight_.begin(); |
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37 | std::vector<std::vector<size_t> > globalIndexSrcGrid; |
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38 | CArray<size_t,1> globalIndexDestGrid; |
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39 | std::vector<size_t> vecGlobalIndexGridSendToServer(globalIndexGridDestSendToServer.begin(), globalIndexGridDestSendToServer.end()); |
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40 | std::sort(vecGlobalIndexGridSendToServer.begin(), vecGlobalIndexGridSendToServer.end()); |
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41 | for (itTransMap = itbTransMap; itTransMap != iteTransMap; ++itTransMap, ++itTransWeight) |
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42 | { |
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43 | this->computeGlobalGridIndexFromGlobalIndexElement(itTransMap->first, |
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44 | itTransMap->second, |
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45 | elementPositionInGrid, |
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46 | gridDestGlobalDim, |
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47 | gridSrcGlobalDim, |
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48 | vecGlobalIndexGridSendToServer, |
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49 | globalIndexDestGrid, |
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50 | globalIndexSrcGrid); |
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51 | size_t globalIndexSize = globalIndexDestGrid.numElements(); |
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52 | const std::vector<double>& currentVecWeight = itTransWeight->second; |
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53 | for (size_t idx = 0; idx < globalIndexSize; ++idx) |
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54 | { |
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55 | size_t globalIndex = globalIndexDestGrid(idx); |
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56 | for (int i = 0; i < globalIndexSrcGrid[idx].size(); ++i) |
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57 | { |
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58 | globaIndexWeightFromDestToSource[globalIndex].push_back(make_pair(globalIndexSrcGrid[idx][i], currentVecWeight[i])); |
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59 | } |
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60 | } |
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61 | } |
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62 | } |
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63 | |
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64 | } |
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