forked from lijiext/lammps
72 lines
2.3 KiB
C++
72 lines
2.3 KiB
C++
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/* ----------------------------------------------------------------------
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LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
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http://lammps.sandia.gov, Sandia National Laboratories
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Steve Plimpton, sjplimp@sandia.gov
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Copyright (2003) Sandia Corporation. Under the terms of Contract
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DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
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certain rights in this software. This software is distributed under
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the GNU General Public License.
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See the README file in the top-level LAMMPS directory.
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------------------------------------------------------------------------- */
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/* ----------------------------------------------------------------------
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Contributing authors: Mike Brown (ORNL), brownw@ornl.gov
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------------------------------------------------------------------------- */
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#include "pair_gpu_nbor_shared.h"
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#ifdef USE_OPENCL
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#include "pair_gpu_nbor_cl.h"
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#else
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#include "pair_gpu_nbor_ptx.h"
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#include "pair_gpu_build_ptx.h"
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#endif
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void PairGPUNborShared::clear() {
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if (_compiled) {
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if (_gpu_nbor) {
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k_cell_id.clear();
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k_cell_counts.clear();
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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 PairGPUNborShared::compile_kernels(UCL_Device &dev, const bool 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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if (gpu_nbor==false) {
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nbor_program=new UCL_Program(dev);
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nbor_program->load_string(pair_gpu_nbor_kernel,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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#ifdef USE_OPENCL
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std::cerr << "CANNOT CURRENTLY USE GPU NEIGHBORING WITH OPENCL\n";
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exit(1);
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#else
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build_program->load_string(pair_gpu_build_kernel,flags.c_str());
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#endif
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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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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,"neigh_tex");
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}
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_compiled=true;
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}
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