time_gpu.h
/*
* Software License Agreement (BSD License)
*
* Copyright (c) 2010, Willow Garage, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of Willow Garage, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
* $Id$
*
*/
#pragma once
#include <cuda.h>
#include <pcl/cuda/cutil_inline.h>
namespace pcl
{
namespace cuda
{
/**
* \brief Class to measure the time spent in a scope
*
* To use this class, e.g. to measure the time spent in a function,
* just create an instance at the beginning of the function.
*/
class ScopeTimeGPU
{
public:
/** \brief Constructor. */
inline ScopeTimeGPU (const char* title) : title_ (title)
{
start ();
}
/** \brief Destructor. */
inline ~ScopeTimeGPU ()
{
stop ();
std::cerr << title_ << " took " << elapsed_time_ << "ms.\n";
}
/** \brief Start the timer. */
inline void
start ()
{
CUT_CHECK_ERROR ("dude");
cutilSafeCall (cudaEventCreate (&start_));
cutilSafeCall (cudaEventCreate (&end_));
cutilSafeCall (cudaEventRecord (start_, 0));
}
/** \brief Stop the timer. */
inline void
stop ()
{
CUT_CHECK_ERROR ("dude");
// Measure time needed to copy data
cutilSafeCall (cudaDeviceSynchronize ());
cutilSafeCall (cudaEventRecord (end_, 0));
cutilSafeCall (cudaEventSynchronize (end_));
cutilSafeCall (cudaEventElapsedTime (&elapsed_time_, start_, end_));
cutilSafeCall (cudaEventDestroy (end_));
cutilSafeCall (cudaEventDestroy (start_));
}
/** \brief Stop and print the timer. */
inline void stop_print ()
{
stop ();
std::cerr << title_ << " took " << elapsed_time_ << "ms.\n";
}
private:
cudaEvent_t start_;
cudaEvent_t end_;
float elapsed_time_;
std::string title_;
};
} // namespace
} // namespace
pcl
This file defines compatibility wrappers for low level I/O functions.
Definition: convolution.h:45
pcl::cuda::ScopeTimeGPU::stop_print
void stop_print()
Stop and print the timer.
Definition: time_gpu.h:96
pcl::cuda::ScopeTimeGPU::ScopeTimeGPU
ScopeTimeGPU(const char *title)
Constructor.
Definition: time_gpu.h:57
pcl::cuda::ScopeTimeGPU::start
void start()
Start the timer.
Definition: time_gpu.h:71
pcl::cuda::ScopeTimeGPU::stop
void stop()
Stop the timer.
Definition: time_gpu.h:82
pcl::cuda::ScopeTimeGPU::~ScopeTimeGPU
~ScopeTimeGPU()
Destructor.
Definition: time_gpu.h:63
pcl::cuda::ScopeTimeGPU
Class to measure the time spent in a scope.
Definition: time_gpu.h:53