git-svn-id: svn://scm.gforge.inria.fr/svnroot/paradiseo@2027 331e1502-861f-0410-8da2-ba01fb791d7f
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1 changed files with 65 additions and 6 deletions
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@ -76,7 +76,7 @@ public:
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}
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}
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/**
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/**
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* Compute fitness for all solution neighbors in device
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* Compute fitness for all solution neighbors(vector of simple type) in device
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* @param _sol the solution which generate the neighborhood
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* @param _sol the solution which generate the neighborhood
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*/
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*/
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@ -90,23 +90,82 @@ public:
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* @param _Kswap the number of swap
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* @param _Kswap the number of swap
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*/
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*/
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void neighborhoodEval(EOT & _sol, unsigned * _mapping, unsigned _Kswap) {
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void neighborhoodKswapEval(EOT & _sol, unsigned * _mapping, unsigned _Kswap) {
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// the solution vector size
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// the solution size
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unsigned _size = _sol.size();
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// Get Current solution fitness
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Fitness fitness = _sol.fitness();
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//Case of Permutation
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if (_Kswap == 1) {
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//Allocate the space for solution in the device global memory
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cudaMalloc((void**) &device_solution.vect, _size * sizeof(T));
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//Copy the solution vector from the host to device
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cudaMemcpy(device_solution.vect, _sol.vect, _size * sizeof(T),
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cudaMemcpyHostToDevice);
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//Launch the Kernel to compute all permutation neighbors fitness
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kernelPermutation<EOT,Fitness,Neighbor,IncrementEval><<<kernel_Dim,BLOCK_SIZE >>>(incrEval,device_solution,device_FitnessArray,fitness,neighborhoodSize,_mapping,_size);
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//Copy the result from device to host
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cudaMemcpy(host_FitnessArray, device_FitnessArray, neighborhoodSize
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* sizeof(Fitness), cudaMemcpyDeviceToHost);
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}
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//Case Kswap
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else if (_Kswap > 1) {
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//NeighborhoodSize copy of solution
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EOT device_setSolution;
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//NeighborhoodSize element of EOT
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EOT device_tmp;
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//Vector of neighborhoodSize copy of solution
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T * vect = new T[neighborhoodSize * _size];
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for (int i = 0; i < neighborhoodSize; i++) {
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for (int j = 0; j < _size; j++) {
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vect[j + i * _size] = _sol.vect[j];
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}
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}
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//Allocate the space for set of solution in the device global memory
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cudaMalloc((void**) &device_setSolution.vect, neighborhoodSize
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* _size * sizeof(T));
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//Copy the set of solution from the host to device
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cudaMemcpy(device_setSolution.vect, vect, neighborhoodSize * _size
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* sizeof(T), cudaMemcpyHostToDevice);
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//Allocate the space to save temporary EOT element to swap
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cudaMalloc((void**) &device_tmp.vect, neighborhoodSize * sizeof(T));
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//Launch the Kernel to compute all Kswap neighbors fitness
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kernelKswap<EOT,Fitness,Neighbor,IncrementEval><<<kernel_Dim,BLOCK_SIZE >>>(incrEval,device_setSolution,device_tmp,device_FitnessArray,fitness,neighborhoodSize,_mapping,_Kswap,_size);
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//Copy the result from device to host
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cudaMemcpy(host_FitnessArray, device_FitnessArray, neighborhoodSize
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* sizeof(Fitness), cudaMemcpyDeviceToHost);
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}
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}
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/**
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* Compute fitness for all solution neighbors(K-flip of binary solution) in device
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* @param _sol the solution which generate the neighborhood
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* @param _mapping the array of indices mapping
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* @param _Kflip the number of flip to do
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*/
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void neighborhoodKflipEval(EOT & _sol, unsigned * _mapping, unsigned _Kflip) {
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// the solution size
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unsigned _size = _sol.size();
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unsigned _size = _sol.size();
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// Get Current solution fitness
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// Get Current solution fitness
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Fitness fitness = _sol.fitness();
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Fitness fitness = _sol.fitness();
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//Allocate the space for solution in the global memory of device
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//Allocate the space for solution in the device global memory
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cudaMalloc((void**) &device_solution.vect, _size * sizeof(T));
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cudaMalloc((void**) &device_solution.vect, _size * sizeof(T));
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//Copy the solution vector from the host to device
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//Copy the solution vector from the host to device
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cudaMemcpy(device_solution.vect, _sol.vect, _size * sizeof(T),
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cudaMemcpy(device_solution.vect, _sol.vect, _size * sizeof(T),
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cudaMemcpyHostToDevice);
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cudaMemcpyHostToDevice);
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//Launch the Kernel to compute all neighbors fitness
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//Launch the Kernel to compute all flip neighbors fitness
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kernelKswap<EOT,Fitness,Neighbor,IncrementEval><<<kernel_Dim,BLOCK_SIZE >>>(incrEval,device_solution,device_FitnessArray,fitness,neighborhoodSize,_mapping,_Kswap);
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kernelKflip<EOT,Fitness,Neighbor,IncrementEval><<<kernel_Dim,BLOCK_SIZE >>>(incrEval,device_solution,device_FitnessArray,fitness,neighborhoodSize,_mapping,_Kflip);
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//Copy the result from device to host
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//Copy the result from device to host
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cudaMemcpy(host_FitnessArray, device_FitnessArray, neighborhoodSize
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cudaMemcpy(host_FitnessArray, device_FitnessArray, neighborhoodSize
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* sizeof(Fitness), cudaMemcpyDeviceToHost);
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* sizeof(Fitness), cudaMemcpyDeviceToHost);
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