forked from lijiext/lammps
79 lines
2.3 KiB
C++
79 lines
2.3 KiB
C++
/***************************************************************************
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neighbor_shared.cpp
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-------------------
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W. Michael Brown (ORNL)
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Class for management of data shared by all neighbor lists
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__________________________________________________________________________
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This file is part of the LAMMPS Accelerator Library (LAMMPS_AL)
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__________________________________________________________________________
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begin :
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email : brownw@ornl.gov
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***************************************************************************/
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#include "lal_precision.h"
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#include "lal_neighbor_shared.h"
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#if defined(USE_OPENCL)
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#include "neighbor_cpu_cl.h"
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#include "neighbor_gpu_cl.h"
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#elif defined(USE_CUDART)
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const char *neighbor_cpu=0;
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const char *neighbor_gpu=0;
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#else
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#include "neighbor_cpu_cubin.h"
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#include "neighbor_gpu_cubin.h"
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#endif
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using namespace LAMMPS_AL;
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void NeighborShared::clear() {
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if (_compiled) {
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if (_gpu_nbor>0) {
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if (_gpu_nbor==1) {
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k_cell_id.clear();
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k_cell_counts.clear();
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}
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k_build_nbor.clear();
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k_transpose.clear();
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k_special.clear();
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delete build_program;
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} else {
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k_nbor.clear();
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delete nbor_program;
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}
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_compiled=false;
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}
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}
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void NeighborShared::compile_kernels(UCL_Device &dev, const int gpu_nbor) {
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if (_compiled)
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return;
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_gpu_nbor=gpu_nbor;
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std::string flags="-cl-fast-relaxed-math -cl-mad-enable "+
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std::string(OCL_PRECISION_COMPILE)+" -D"+
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std::string(OCL_VENDOR);
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if (_gpu_nbor==0) {
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nbor_program=new UCL_Program(dev);
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nbor_program->load_string(neighbor_cpu,flags.c_str());
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k_nbor.set_function(*nbor_program,"kernel_unpack");
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} else {
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build_program=new UCL_Program(dev);
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build_program->load_string(neighbor_gpu,flags.c_str());
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if (_gpu_nbor==1) {
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k_cell_id.set_function(*build_program,"calc_cell_id");
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k_cell_counts.set_function(*build_program,"kernel_calc_cell_counts");
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}
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k_build_nbor.set_function(*build_program,"calc_neigh_list_cell");
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k_transpose.set_function(*build_program,"transpose");
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k_special.set_function(*build_program,"kernel_special");
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neigh_tex.get_texture(*build_program,"pos_tex");
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}
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_compiled=true;
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}
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