src/gromacs/ewald/pme_pp_comm_gpu_impl.cpp

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  35 /*! \internal \file
  36  *
  37  * \brief May be used to implement PME-PP GPU comm interfaces for non-GPU builds.
  38  *
  39  * Currently, reports and exits if any of the interfaces are called.
  40  * Needed to satisfy compiler on systems, where CUDA is not available.
  41  *
  42  * \author Alan Gray <alang@nvidia.com>
  43  *
  44  * \ingroup module_ewald
  45  */
  46 #include "gmxpre.h"
  47
  48 #include "config.h"
  49
  50 #include "gromacs/ewald/pme_pp_comm_gpu.h"
  51 #include "gromacs/utility/gmxassert.h"
  52 #include "gromacs/utility/gmxmpi.h"
  53
  54 #if !GMX_GPU_CUDA
  55
  56 namespace gmx
  57 {
  58
  59 /*!\brief \internal Impl class stub. */
  60 class PmePpCommGpu::Impl
  61 {
  62 };
  63
  64 /*!\brief Constructor stub. */
  65 PmePpCommGpu::PmePpCommGpu(MPI_Comm /* comm */,
  66                            int /* pmeRank */,
  67                            const DeviceContext& /* deviceContext */,
  68                            const DeviceStream& /* deviceStream */) :
  69     impl_(nullptr)
  70 {
  71     GMX_ASSERT(!impl_,
  72                "A CPU stub for PME-PP GPU communication was called instead of the correct "
  73                "implementation.");
  74 }
  75
  76 PmePpCommGpu::~PmePpCommGpu() = default;
  77
  78 /*!\brief init PME-PP GPU communication stub */
  79 void PmePpCommGpu::reinit(int /* size */)
  80 {
  81     GMX_ASSERT(!impl_,
  82                "A CPU stub for PME-PP GPU communication initialization was called instead of the "
  83                "correct implementation.");
  84 }
  85
  86 void PmePpCommGpu::receiveForceFromPmeCudaDirect(void* /* recvPtr */,
  87                                                  int /* recvSize */,
  88                                                  bool /* receivePmeForceToGpu */)
  89 {
  90     GMX_ASSERT(!impl_,
  91                "A CPU stub for PME-PP GPU communication was called instead of the correct "
  92                "implementation.");
  93 }
  94
  95 void PmePpCommGpu::sendCoordinatesToPmeCudaDirect(void* /* sendPtr */,
  96                                                   int /* sendSize */,
  97                                                   bool /* sendPmeCoordinatesFromGpu */,
  98                                                   GpuEventSynchronizer* /* coordinatesOnDeviceEvent */)
  99 {
 100     GMX_ASSERT(!impl_,
 101                "A CPU stub for PME-PP GPU communication was called instead of the correct "
 102                "implementation.");
 103 }
 104
 105 void* PmePpCommGpu::getGpuForceStagingPtr()
 106 {
 107     GMX_ASSERT(!impl_,
 108                "A CPU stub for PME-PP GPU communication was called instead of the correct "
 109                "implementation.");
 110     return nullptr;
 111 }
 112
 113 void* PmePpCommGpu::getForcesReadySynchronizer()
 114 {
 115     GMX_ASSERT(!impl_,
 116                "A CPU stub for PME-PP GPU communication was called instead of the correct "
 117                "implementation.");
 118     return nullptr;
 119 }
 120
 121 } // namespace gmx
 122
 123 #endif // !GMX_GPU_CUDA