hipKernels.hpp

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/*
  Copyright 2024 Equinor ASA
 
  This file is part of the Open Porous Media project (OPM).
 
  OPM is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.
 
  OPM is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.
 
  You should have received a copy of the GNU General Public License
  along with OPM.  If not, see <http://www.gnu.org/licenses/>.
*/
 
#ifndef OPM_HIPKERNELS_HPP
#define OPM_HIPKERNELS_HPP
 
#include <string>
#include <memory>
#include <cstddef>
 
#include <hip/hip_runtime_api.h>
#include <hip/hip_version.h>
 
namespace Opm {
 
template<class Scalar>
class HipKernels
{
private:
    static int  verbosity;
    static bool initialized;
    
    HipKernels();
    
public:
    static void init(int verbosity);
    
    static void full_to_pressure_restriction(const Scalar* fine_y,
                                             Scalar* weights,
                                             Scalar* coarse_y,
                                             int Nb,
                                             hipStream_t stream);
 
    static void add_coarse_pressure_correction(Scalar* coarse_x,
                                               Scalar* fine_x,
                                               int pressure_idx,
                                               int Nb,
                                               hipStream_t stream);
 
 
    static void vmul(const Scalar alpha,
                     Scalar* in1,
                     Scalar* in2,
                     Scalar* out,
                     int N,
                     hipStream_t stream);
    
    static void prolongate_vector(const Scalar* in,
                                  Scalar* out,
                                  const int* cols,
                                  int N,
                                  hipStream_t stream);
 
    static void residual(Scalar* vals,
                         int* cols,
                         int* rows,
                         Scalar* x,
                         const Scalar* rhs,
                         Scalar* out,
                         int Nb,
                         unsigned int block_size,
                         hipStream_t stream);
 
    static void spmv(Scalar* vals,
                     int* cols,
                     int* rows,
                     Scalar* x,
                     Scalar* y,
                     int Nb,
                     unsigned int block_size,
                     hipStream_t stream);
};
 
} // namespace Opm
 
#endif