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35 /*! \libinternal \file
36 * \brief Declaration of class which sends PME Force from GPU memory to PP task
38 * \author Alan Gray <alang@nvidia.com>
40 * \ingroup module_ewald
42 #ifndef GMX_PMEFORCESENDERGPU_H
43 #define GMX_PMEFORCESENDERGPU_H
47 #include "gromacs/math/vectypes.h"
48 #include "gromacs/gpu_utils/devicebuffer_datatype.h"
49 #include "gromacs/utility/gmxmpi.h"
51 class GpuEventSynchronizer;
54 * \brief Contains information about the PP ranks that partner this PME rank. */
57 //! The MPI rank ID of this partner PP rank.
59 //! The number of atoms to communicate with this partner PP rank.
70 * \brief Manages sending forces from PME-only ranks to their PP ranks. */
71 class PmeForceSenderGpu
75 /*! \brief Creates PME GPU Force sender object
76 * \param[in] pmeForcesReady Event synchronizer marked when PME forces are ready on the GPU
77 * \param[in] comm Communicator used for simulation
78 * \param[in] ppRanks List of PP ranks
80 PmeForceSenderGpu(GpuEventSynchronizer* pmeForcesReady, MPI_Comm comm, gmx::ArrayRef<PpRanks> ppRanks);
84 * Initialization of GPU PME Force sender
85 * \param[in] d_f force buffer in GPU memory
87 void sendForceBufferAddressToPpRanks(DeviceBuffer<RVec> d_f);
90 * Send force synchronizer to PP rank
91 * \param[in] ppRank PP rank to receive data
93 void sendFToPpCudaDirect(int ppRank);
97 std::unique_ptr<Impl> impl_;