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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: 2398 $
//
// $LastChangedDate: 2010-10-05 14:54:37 -0700 (Tue, 05 Oct 2010) $
//
// $LastChangedBy: torstenrohlfing $
//
*/
#include <GPU/cmtkDeviceMemory.h>
#include <cuda_runtime_api.h>
// test "DeviceMemory" class
int
testDeviceMemory()
{
size_t memFreeBefore, memTotalBefore;
cudaError_t status = cudaMemGetInfo( &memFreeBefore, &memTotalBefore );
if ( status != cudaSuccess )
{
std::cerr << "Call to cudaMemGetInfo() failed with error " << cudaGetErrorString( status ) << std::endl;
return 1;
}
try
{
float floatHost[100];
cmtk::DeviceMemory<float>::SmartPtr floatDevice = cmtk::DeviceMemory<float>::Create( 100 );
floatDevice->CopyToDevice( floatHost, 100 );
floatDevice->CopyToHost( floatHost, 100 );
int intHost[100];
cmtk::DeviceMemory<int>::SmartPtr intDevice = cmtk::DeviceMemory<int>::Create( 100 );
intDevice->CopyToDevice( intHost, 100 );
intDevice->CopyToHost( intHost, 100 );
char charHost[100];
cmtk::DeviceMemory<char>::SmartPtr charDevice = cmtk::DeviceMemory<char>::Create( 100 );
charDevice->CopyToDevice( charHost, 100 );
charDevice->CopyToHost( charHost, 100 );
cmtk::DeviceMemory<float>::SmartPtr float2Device = cmtk::DeviceMemory<float>::Create( 100 );
float2Device->CopyOnDevice( *floatDevice, 100 );
size_t memFreeAfter, memTotalAfter;
if ( cudaMemGetInfo( &memFreeAfter, &memTotalAfter ) != cudaSuccess )
{
std::cerr << "Second call to cudaMemGetInfo() failed." << std::endl;
return 1;
}
if ( memFreeBefore == memFreeAfter )
{
std::cerr << "Free device memory constant despite allocation at" << memFreeBefore << std::endl;
return 1;
}
}
catch ( std::bad_alloc )
{
std::cerr << "Caught bad_alloc()" << std::endl;
return 1;
}
size_t memFreeAfter, memTotalAfter;
if ( cudaMemGetInfo( &memFreeAfter, &memTotalAfter ) != cudaSuccess )
{
std::cerr << "Third call to cudaMemGetInfo() failed." << std::endl;
return 1;
}
if ( memTotalBefore != memTotalAfter )
{
std::cerr << "Total device memory changed by " << (memTotalBefore - memTotalAfter) << std::endl;
return 1;
}
if ( memFreeBefore != memFreeAfter )
{
std::cerr << "Free device memory changed by" << (memFreeBefore - memFreeAfter) << std::endl;
return 1;
}
return 0;
}
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