src/gromacs/ewald/pme_coordinate_receiver_gpu.h

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  35 /*! \libinternal \file
  36  * \brief Declaration of class which receives coordinates to GPU memory on PME task
  37  *
  38  * \author Alan Gray <alang@nvidia.com>
  39  * \inlibraryapi
  40  * \ingroup module_ewald
  41  */
  42 #ifndef GMX_PMECOORDINATERECEIVERGPU_H
  43 #define GMX_PMECOORDINATERECEIVERGPU_H
  44
  45 #include "gromacs/ewald/pme.h"
  46 #include "gromacs/ewald/pme_force_sender_gpu.h"
  47 #include "gromacs/utility/classhelpers.h"
  48 #include "gromacs/utility/gmxmpi.h"
  49
  50 namespace gmx
  51 {
  52
  53 class PmeCoordinateReceiverGpu
  54 {
  55
  56 public:
  57     /*! \brief Creates PME GPU coordinate receiver object
  58      * \param[in] pmeStream       CUDA stream used for PME computations
  59      * \param[in] comm            Communicator used for simulation
  60      * \param[in] ppRanks         List of PP ranks
  61      */
  62     PmeCoordinateReceiverGpu(void* pmeStream, MPI_Comm comm, gmx::ArrayRef<PpRanks> ppRanks);
  63     ~PmeCoordinateReceiverGpu();
  64
  65     /*! \brief
  66      * send coordinates buffer address to PP rank
  67      * \param[in] d_x   coordinates buffer in GPU memory
  68      */
  69     void sendCoordinateBufferAddressToPpRanks(rvec* d_x);
  70
  71
  72     /*! \brief
  73      * launch receive of coordinate data from PP rank
  74      * \param[in] ppRank  PP rank to send data
  75      */
  76     void launchReceiveCoordinatesFromPpCudaDirect(int ppRank);
  77
  78     /*! \brief
  79      * enqueue wait for coordinate data from PP ranks
  80      */
  81     void enqueueWaitReceiveCoordinatesFromPpCudaDirect();
  82
  83 private:
  84     class Impl;
  85     gmx::PrivateImplPointer<Impl> impl_;
  86 };
  87
  88 } // namespace gmx
  89
  90 #endif