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MemoryTransferKernelsDevice.h
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MemoryTransferKernelsDevice.h
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// ---------------------------------------------------------------------
//
// Copyright (c) 2017-2022 The Regents of the University of Michigan and DFT-FE
// authors.
//
// This file is part of the DFT-FE code.
//
// The DFT-FE code is free software; you can use it, redistribute
// it, and/or modify it under the terms of the GNU Lesser General
// Public License as published by the Free Software Foundation; either
// version 2.1 of the License, or (at your option) any later version.
// The full text of the license can be found in the file LICENSE at
// the top level of the DFT-FE distribution.
//
// ---------------------------------------------------------------------
/*
* @author Sambit Das
*/
#ifndef dftfeMemoryTransferKernelsDevice_h
#define dftfeMemoryTransferKernelsDevice_h
#ifdef DFTFE_WITH_DEVICE
# include <TypeConfig.h>
namespace dftfe
{
namespace utils
{
namespace memoryTransferKernelsDevice
{
/**
* @brief Copy array from device to host
* @param count The memory size in bytes of the array
*/
void
deviceMemcpyD2H(void *dst, const void *src, std::size_t count);
/**
* @brief Copy array from device to device
* @param count The memory size in bytes of the array
*/
void
deviceMemcpyD2D(void *dst, const void *src, std::size_t count);
/**
* @brief Copy array from host to device
* @param count The memory size in bytes of the array
*/
void
deviceMemcpyH2D(void *dst, const void *src, std::size_t count);
}; // namespace memoryTransferKernelsDevice
} // namespace utils
} // namespace dftfe
#endif // DFTFE_WITH_DEVICE
#endif // dftfeMemoryTransferKernels_h