1 | #include "spatial_transform_filter.hpp" |
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2 | #include "grid_transformation.hpp" |
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3 | #include "context.hpp" |
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4 | #include "context_client.hpp" |
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5 | |
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6 | namespace xios |
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7 | { |
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8 | CSpatialTransformFilter::CSpatialTransformFilter(CGarbageCollector& gc, CSpatialTransformFilterEngine* engine) |
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9 | : CFilter(gc, 1, engine) |
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10 | { /* Nothing to do */ } |
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11 | |
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12 | std::pair<boost::shared_ptr<CSpatialTransformFilter>, boost::shared_ptr<CSpatialTransformFilter> > |
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13 | CSpatialTransformFilter::buildFilterGraph(CGarbageCollector& gc, CGrid* srcGrid, CGrid* destGrid) |
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14 | { |
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15 | if (!srcGrid || !destGrid) |
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16 | ERROR("std::pair<boost::shared_ptr<CSpatialTransformFilter>, boost::shared_ptr<CSpatialTransformFilter> >" |
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17 | "buildFilterGraph(CGarbageCollector& gc, CGrid* srcGrid, CGrid* destGrid)", |
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18 | "Impossible to build the filter graph if either the source or the destination grid are null."); |
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19 | |
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20 | // TODO: Implement the real path finding algorithm after a solution has been found |
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21 | // to support initializing grid transformations during parsing. |
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22 | CSpatialTransformFilterEngine* engine = CSpatialTransformFilterEngine::get(destGrid->getTransformations()); |
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23 | boost::shared_ptr<CSpatialTransformFilter> filter(new CSpatialTransformFilter(gc, engine)); |
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24 | |
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25 | return std::make_pair(filter, filter); |
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26 | } |
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27 | |
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28 | CSpatialTransformFilterEngine::CSpatialTransformFilterEngine(CGridTransformation* gridTransformation) |
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29 | : gridTransformation(gridTransformation) |
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30 | { |
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31 | if (!gridTransformation) |
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32 | ERROR("CSpatialTransformFilterEngine::CSpatialTransformFilterEngine(CGridTransformation* gridTransformation)", |
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33 | "Impossible to construct a spatial transform filter engine without a valid grid transformation."); |
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34 | } |
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35 | |
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36 | std::map<CGridTransformation*, boost::shared_ptr<CSpatialTransformFilterEngine> > CSpatialTransformFilterEngine::engines; |
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37 | |
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38 | CSpatialTransformFilterEngine* CSpatialTransformFilterEngine::get(CGridTransformation* gridTransformation) |
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39 | { |
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40 | if (!gridTransformation) |
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41 | ERROR("CSpatialTransformFilterEngine& CSpatialTransformFilterEngine::get(CGridTransformation* gridTransformation)", |
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42 | "Impossible to get the requested engine, the grid transformation is invalid."); |
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43 | |
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44 | std::map<CGridTransformation*, boost::shared_ptr<CSpatialTransformFilterEngine> >::iterator it = engines.find(gridTransformation); |
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45 | if (it == engines.end()) |
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46 | { |
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47 | boost::shared_ptr<CSpatialTransformFilterEngine> engine(new CSpatialTransformFilterEngine(gridTransformation)); |
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48 | it = engines.insert(std::make_pair(gridTransformation, engine)).first; |
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49 | } |
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50 | |
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51 | return it->second.get(); |
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52 | } |
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53 | |
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54 | CDataPacketPtr CSpatialTransformFilterEngine::apply(std::vector<CDataPacketPtr> data) |
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55 | { |
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56 | CDataPacketPtr packet(new CDataPacket); |
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57 | packet->date = data[0]->date; |
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58 | packet->timestamp = data[0]->timestamp; |
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59 | packet->status = data[0]->status; |
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60 | |
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61 | if (packet->status == CDataPacket::NO_ERROR) |
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62 | { |
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63 | packet->data.resize(gridTransformation->getGridDestination()->storeIndex_client.numElements()); |
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64 | apply(data[0]->data, packet->data); |
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65 | } |
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66 | |
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67 | return packet; |
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68 | } |
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69 | |
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70 | void CSpatialTransformFilterEngine::apply(const CArray<double, 1>& dataSrc, CArray<double,1>& dataDest) |
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71 | { |
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72 | CContextClient* client = CContext::getCurrent()->client; |
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73 | |
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74 | const std::map<int, CArray<int,1> >& localIndexToSend = gridTransformation->getLocalIndexToSendFromGridSource(); |
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75 | const std::map<int, std::vector<std::vector<std::pair<int,double> > > >& localIndexToReceive = gridTransformation->getLocalIndexToReceiveOnGridDest(); |
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76 | |
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77 | dataDest = 0.0; |
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78 | |
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79 | // Sending data from field sources to do transformations |
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80 | std::map<int, CArray<int,1> >::const_iterator itbSend = localIndexToSend.begin(), itSend, |
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81 | iteSend = localIndexToSend.end(); |
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82 | int idxSendBuff = 0; |
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83 | std::vector<double*> sendBuff(localIndexToSend.size()); |
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84 | for (itSend = itbSend; itSend != iteSend; ++itSend, ++idxSendBuff) |
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85 | { |
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86 | if (0 != itSend->second.numElements()) |
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87 | sendBuff[idxSendBuff] = new double[itSend->second.numElements()]; |
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88 | } |
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89 | |
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90 | idxSendBuff = 0; |
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91 | std::vector<MPI_Request> sendRequest; |
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92 | for (itSend = itbSend; itSend != iteSend; ++itSend, ++idxSendBuff) |
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93 | { |
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94 | int destRank = itSend->first; |
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95 | const CArray<int,1>& localIndex_p = itSend->second; |
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96 | int countSize = localIndex_p.numElements(); |
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97 | for (int idx = 0; idx < countSize; ++idx) |
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98 | { |
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99 | sendBuff[idxSendBuff][idx] = dataSrc(localIndex_p(idx)); |
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100 | } |
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101 | sendRequest.push_back(MPI_Request()); |
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102 | MPI_Isend(sendBuff[idxSendBuff], countSize, MPI_DOUBLE, destRank, 12, client->intraComm, &sendRequest.back()); |
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103 | } |
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104 | |
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105 | // Receiving data on destination fields |
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106 | std::map<int,std::vector<std::vector<std::pair<int,double> > > >::const_iterator itbRecv = localIndexToReceive.begin(), itRecv, |
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107 | iteRecv = localIndexToReceive.end(); |
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108 | int recvBuffSize = 0; |
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109 | for (itRecv = itbRecv; itRecv != iteRecv; ++itRecv) recvBuffSize = (recvBuffSize < itRecv->second.size()) |
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110 | ? itRecv->second.size() : recvBuffSize; |
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111 | double* recvBuff; |
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112 | if (0 != recvBuffSize) recvBuff = new double[recvBuffSize]; |
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113 | for (itRecv = itbRecv; itRecv != iteRecv; ++itRecv) |
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114 | { |
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115 | MPI_Status status; |
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116 | int srcRank = itRecv->first; |
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117 | int countSize = itRecv->second.size(); |
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118 | MPI_Recv(recvBuff, recvBuffSize, MPI_DOUBLE, srcRank, 12, client->intraComm, &status); |
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119 | int countBuff = 0; |
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120 | MPI_Get_count(&status, MPI_DOUBLE, &countBuff); |
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121 | if (countBuff != countSize) |
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122 | ERROR("CSpatialTransformFilterEngine::apply(const CArray<double, 1>& dataSrc, CArray<double,1>& dataDest)", |
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123 | "Incoherent between the received size and expected size"); |
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124 | for (int idx = 0; idx < countSize; ++idx) |
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125 | { |
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126 | const std::vector<std::pair<int,double> >& localIndex_p = itRecv->second[idx]; |
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127 | int numIndex = localIndex_p.size(); |
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128 | for (int i = 0; i < numIndex; ++i) |
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129 | { |
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130 | dataDest(localIndex_p[i].first) += recvBuff[idx] * localIndex_p[i].second; |
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131 | } |
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132 | } |
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133 | } |
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134 | |
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135 | |
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136 | if (!sendRequest.empty()) MPI_Waitall(sendRequest.size(), &sendRequest[0], MPI_STATUSES_IGNORE); |
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137 | idxSendBuff = 0; |
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138 | for (itSend = itbSend; itSend != iteSend; ++itSend, ++idxSendBuff) |
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139 | { |
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140 | if (0 != itSend->second.numElements()) |
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141 | delete [] sendBuff[idxSendBuff]; |
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142 | } |
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143 | if (0 != recvBuffSize) delete [] recvBuff; |
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144 | } |
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145 | } // namespace xios |
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