[1985] | 1 | /*! |
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| 2 | \file domain_algorithm_generate_rectilinear.cpp |
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| 3 | \author Ha NGUYEN |
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| 4 | \since 31 Aug 2015 |
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| 5 | \date 31 Aug 2015 |
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| 6 | |
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| 7 | \brief Algorithm for automatic generation of rectilinear domain. |
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| 8 | */ |
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| 9 | #include "domain_algorithm_generate_rectilinear.hpp" |
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| 10 | #include "grid.hpp" |
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| 11 | #include "domain.hpp" |
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| 12 | #include "context.hpp" |
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| 13 | #include "context_client.hpp" |
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| 14 | #include "generate_rectilinear_domain.hpp" |
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[1988] | 15 | #include "grid_transformation_factory_impl.hpp" |
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[1985] | 16 | |
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| 17 | namespace xios { |
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| 18 | |
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[1988] | 19 | |
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| 20 | CGenericAlgorithmTransformation* CDomainAlgorithmGenerateRectilinear::create(bool isSource, CGrid* gridDst, CGrid* gridSrc, |
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| 21 | CTransformation<CDomain>* transformation, |
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| 22 | int elementPositionInGrid, |
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| 23 | std::map<int, int>& elementPositionInGridSrc2ScalarPosition, |
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| 24 | std::map<int, int>& elementPositionInGridSrc2AxisPosition, |
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| 25 | std::map<int, int>& elementPositionInGridSrc2DomainPosition, |
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| 26 | std::map<int, int>& elementPositionInGridDst2ScalarPosition, |
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| 27 | std::map<int, int>& elementPositionInGridDst2AxisPosition, |
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| 28 | std::map<int, int>& elementPositionInGridDst2DomainPosition) |
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| 29 | TRY |
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| 30 | { |
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| 31 | std::vector<CDomain*> domainListDestP = gridDst->getDomains(); |
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| 32 | std::vector<CDomain*> domainListSrcP = gridSrc->getDomains(); |
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| 33 | |
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| 34 | CGenerateRectilinearDomain* transform = dynamic_cast<CGenerateRectilinearDomain*> (transformation); |
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| 35 | int domainDstIndex = elementPositionInGridDst2DomainPosition[elementPositionInGrid]; |
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| 36 | int domainSrcIndex = elementPositionInGridSrc2DomainPosition[elementPositionInGrid]; |
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| 37 | |
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| 38 | return (new CDomainAlgorithmGenerateRectilinear(isSource, domainListDestP[domainDstIndex], domainListSrcP[domainSrcIndex], gridDst, gridSrc, transform)); |
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| 39 | } |
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| 40 | CATCH |
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| 41 | |
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| 42 | bool CDomainAlgorithmGenerateRectilinear::dummyRegistered_ = CDomainAlgorithmGenerateRectilinear::registerTrans(); |
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| 43 | |
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| 44 | bool CDomainAlgorithmGenerateRectilinear::registerTrans() |
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| 45 | TRY |
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| 46 | { |
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| 47 | return CGridTransformationFactory<CDomain>::registerTransformation(TRANS_GENERATE_RECTILINEAR_DOMAIN, create); |
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| 48 | } |
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| 49 | CATCH |
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| 50 | |
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| 51 | |
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| 52 | |
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| 53 | CDomainAlgorithmGenerateRectilinear::CDomainAlgorithmGenerateRectilinear(bool isSource, CDomain* domainDestination, CDomain* domainSource, |
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[1985] | 54 | CGrid* gridDest, CGrid* gridSource, |
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| 55 | CGenerateRectilinearDomain* genRectDomain) |
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[1998] | 56 | : CAlgorithmTransformationNoDataModification(isSource), nbDomainDistributedPart_(0), domainDest_(domainDestination) |
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[1985] | 57 | TRY |
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| 58 | { |
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| 59 | genRectDomain->checkValid(domainDestination); |
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| 60 | if (0 != gridSource) computeDistributionGridSource(gridSource); |
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| 61 | else |
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| 62 | { |
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| 63 | computeDistributionGridDestination(gridDest); |
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| 64 | } |
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| 65 | fillInAttributesDomainDestination(); |
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[2016] | 66 | domainDestination->checkAttributes() ; |
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[1985] | 67 | } |
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| 68 | CATCH |
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| 69 | |
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| 70 | /*! |
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| 71 | Compute the index mapping between domain on grid source and one on grid destination |
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| 72 | */ |
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| 73 | void CDomainAlgorithmGenerateRectilinear::computeIndexSourceMapping_(const std::vector<CArray<double,1>* >& dataAuxInputs) |
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| 74 | { |
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| 75 | /* Nothing to do */ |
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| 76 | } |
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| 77 | |
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| 78 | /*! |
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| 79 | Calculate the number of distributed parts on domain source |
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| 80 | */ |
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| 81 | void CDomainAlgorithmGenerateRectilinear::computeDistributionGridSource(CGrid* gridSrc) |
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| 82 | TRY |
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| 83 | { |
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| 84 | CContext* context = CContext::getCurrent(); |
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| 85 | int clientSize = context->intraCommSize_ ; |
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| 86 | int clientRank = context->intraCommRank_ ; |
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| 87 | |
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| 88 | std::vector<CDomain*> domListSrcP = gridSrc->getDomains(); |
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| 89 | std::vector<CAxis*> axisListSrcP = gridSrc->getAxis(); |
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| 90 | |
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| 91 | for (int i = 0; i < domListSrcP.size(); ++i) // support we have only domain, more than one, for now, dont know how to process |
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| 92 | { |
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| 93 | // First, find (roundly) distribution of associated axis (if any) |
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| 94 | if (axisListSrcP.empty()) nbDomainDistributedPart_ = clientSize; |
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| 95 | else |
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| 96 | { |
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| 97 | gridSrc->solveAxisRef(false); |
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| 98 | int nbAxis = axisListSrcP.size(); |
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| 99 | std::vector<int> nbLocalAxis(nbAxis, 0); |
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| 100 | for (int j = 0; j < nbAxis; ++j) |
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| 101 | { |
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| 102 | std::vector<int> globalAxisIndex(axisListSrcP[j]->n); |
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| 103 | for (int idx = 0; idx < axisListSrcP[j]->n; ++idx) |
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| 104 | globalAxisIndex[idx] = axisListSrcP[j]->begin + idx; |
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| 105 | HashXIOS<int> hashFunc; |
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| 106 | StdSize hashValue = hashFunc.hashVec(globalAxisIndex); |
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| 107 | std::vector<StdSize> recvBuff(clientSize); |
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| 108 | MPI_Gather(&hashValue, 1, MPI_UNSIGNED_LONG, |
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| 109 | &recvBuff[0], 1, MPI_UNSIGNED_LONG, |
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| 110 | 0, |
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| 111 | context->intraComm_); |
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| 112 | if (0 == clientRank) |
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| 113 | { |
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| 114 | std::set<StdSize> setTmp; |
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| 115 | for (int k = 0; k < recvBuff.size(); ++k) |
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| 116 | { |
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| 117 | if (setTmp.end() == setTmp.find(recvBuff[k])) |
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| 118 | { |
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| 119 | ++nbLocalAxis[j]; |
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| 120 | setTmp.insert(recvBuff[k]); |
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| 121 | } |
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| 122 | } |
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| 123 | } |
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| 124 | |
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| 125 | MPI_Bcast(&nbLocalAxis[0], nbAxis, MPI_INT, |
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| 126 | 0, context->intraComm_); |
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| 127 | } |
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| 128 | |
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| 129 | int nbAxisDistributedPart = 1; |
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| 130 | for (int j = 0; j < nbAxis; ++j) nbAxisDistributedPart *= nbLocalAxis[j]; |
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| 131 | nbDomainDistributedPart_ = clientSize/nbAxisDistributedPart; |
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| 132 | } |
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| 133 | } |
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| 134 | } |
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| 135 | CATCH |
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| 136 | |
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| 137 | /*! |
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| 138 | Compute the distribution of the domain destination by using available information provided by user such as n_distributed_partition of axis |
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| 139 | */ |
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| 140 | void CDomainAlgorithmGenerateRectilinear::computeDistributionGridDestination(CGrid* gridDest) |
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| 141 | TRY |
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| 142 | { |
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| 143 | // For now, just suppose that the grid contains only one domain |
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| 144 | std::vector<CAxis*> axisListDestP = gridDest->getAxis(); |
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| 145 | int nbPartition = 1, idx = 0; |
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| 146 | for (int i = 0; i < gridDest->axis_domain_order.numElements(); ++i) |
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| 147 | { |
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| 148 | if (false == (gridDest->axis_domain_order)(i)) |
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| 149 | { |
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| 150 | nbPartition *= (axisListDestP[idx]->n_distributed_partition.isEmpty()) ? 1: (axisListDestP[idx]->n_distributed_partition.getValue()); |
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| 151 | ++idx; |
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| 152 | } |
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| 153 | } |
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| 154 | |
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| 155 | CContext* context = CContext::getCurrent(); |
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| 156 | int modPart = (context->intraCommSize_) % nbPartition; |
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| 157 | if (0 != modPart) |
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| 158 | ERROR("CDomainAlgorithmGenerateRectilinear::computeDistributionGridDestination(CGrid* gridDest)", |
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| 159 | << "The grid " <<gridDest->getId() << " is not well-distributed. There is an incompatibility between distribution of axis and domain."); |
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| 160 | nbDomainDistributedPart_ = context->intraCommSize_/nbPartition; |
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| 161 | |
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| 162 | } |
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| 163 | CATCH |
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| 164 | |
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| 165 | /*! |
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| 166 | Fill in all necessary attributes of domain destination and their values |
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| 167 | */ |
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| 168 | void CDomainAlgorithmGenerateRectilinear::fillInAttributesDomainDestination() |
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| 169 | TRY |
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| 170 | { |
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| 171 | if (!domainDest_->distributionAttributesHaveValue()) |
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| 172 | domainDest_->redistribute(nbDomainDistributedPart_); |
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| 173 | domainDest_->fillInLonLat(); |
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| 174 | } |
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| 175 | CATCH |
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| 176 | } |
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