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/*
//
// Copyright 2010 SRI International
//
// This file is part of the Computational Morphometry Toolkit.
//
// http://www.nitrc.org/projects/cmtk/
//
// The Computational Morphometry Toolkit is free software: you can
// redistribute it and/or modify it under the terms of the GNU General Public
// License as published by the Free Software Foundation, either version 3 of
// the License, or (at your option) any later version.
//
// The Computational Morphometry Toolkit is distributed in the hope that it
// will be useful, but WITHOUT ANY WARRANTY; without even the implied
// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License along
// with the Computational Morphometry Toolkit. If not, see
// <http://www.gnu.org/licenses/>.
//
// $Revision: 5436 $
//
// $LastChangedDate: 2018-12-10 19:01:20 -0800 (Mon, 10 Dec 2018) $
//
// $LastChangedBy: torstenrohlfing $
//
*/
#include "cmtkDeviceMemoryCUDA.h"
#include <GPU/cmtkCUDA.h>
#include <cuda_runtime_api.h>
namespace
cmtk
{
DeviceMemoryCUDA
::DeviceMemoryCUDA( const size_t nBytes, const size_t padToMultiple )
{
this->m_NumberOfBytesAllocated = (((nBytes-1) / padToMultiple)+1) * padToMultiple;
cmtkCheckCallCUDA( cudaMalloc( &(this->m_PointerDevice), this->m_NumberOfBytesAllocated ) );
}
DeviceMemoryCUDA
::~DeviceMemoryCUDA()
{
if ( this->m_PointerDevice )
cmtkCheckCallCUDA( cudaFree( this->m_PointerDevice ) );
}
void
DeviceMemoryCUDA
::CopyToDevice( const void *const srcPtrHost, const size_t nBytes )
{
cmtkCheckCallCUDA( cudaMemcpy( this->m_PointerDevice, srcPtrHost, nBytes, cudaMemcpyHostToDevice ) );
}
void
DeviceMemoryCUDA
::CopyToHost( void *const dstPtrHost, const size_t nBytes ) const
{
cmtkCheckCallCUDA( cudaMemcpy( dstPtrHost, this->m_PointerDevice, nBytes, cudaMemcpyDeviceToHost ) );
}
void
DeviceMemoryCUDA
::CopyOnDevice( const Self& srcPtrDevice, const size_t nBytes )
{
cmtkCheckCallCUDA( cudaMemcpy( this->m_PointerDevice, srcPtrDevice.m_PointerDevice, nBytes, cudaMemcpyDeviceToDevice ) );
}
void
DeviceMemoryCUDA
::Memset( const int value, const size_t nBytes )
{
cmtkCheckCallCUDA( cudaMemset( this->m_PointerDevice, value, nBytes ) );
}
} // namespace cmtk
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