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37 * \brief Declaration of class which sends PME Force from GPU memory to PP task
39 * \author Alan Gray <alang@nvidia.com>
41 * \ingroup module_ewald
43 #ifndef GMX_PMEFORCESENDERGPU_IMPL_H
44 #define GMX_PMEFORCESENDERGPU_IMPL_H
46 #include "gromacs/ewald/pme_force_sender_gpu.h"
47 #include "gromacs/gpu_utils/gpueventsynchronizer.cuh"
48 #include "gromacs/utility/arrayref.h"
53 /*! \internal \brief Class with interfaces and data for CUDA version of PME Force sending functionality*/
55 class PmeForceSenderGpu::Impl
59 /*! \brief Creates PME GPU Force sender object
60 * \param[in] pmeStream CUDA stream used for PME computations
61 * \param[in] comm Communicator used for simulation
62 * \param[in] ppRanks List of PP ranks
64 Impl(const DeviceStream& pmeStream, MPI_Comm comm, gmx::ArrayRef<PpRanks> ppRanks);
68 * sends force buffer address to PP rank
69 * \param[in] d_f force buffer in GPU memory
71 void sendForceBufferAddressToPpRanks(rvec* d_f);
74 * Send PP data to PP rank
75 * \param[in] ppRank PP rank to receive data
77 void sendFToPpCudaDirect(int ppRank);
80 //! CUDA stream for PME operations
81 const DeviceStream& pmeStream_;
82 //! Event triggered when to allow remote PP stream to syn with pme stream
83 GpuEventSynchronizer pmeSync_;
84 //! communicator for simulation
87 gmx::ArrayRef<PpRanks> ppRanks_;