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/*
* Copyright 2008-2009 NVIDIA Corporation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
// A simple timer class
#include <cuda.h>
class timer
{
cudaEvent_t start;
cudaEvent_t end;
public:
timer()
{
cudaEventCreate(&start);
cudaEventCreate(&end);
cudaEventRecord(start,0);
}
~timer()
{
cudaEventDestroy(start);
cudaEventDestroy(end);
}
float milliseconds_elapsed()
{
float elapsed_time;
cudaEventRecord(end, 0);
cudaEventSynchronize(end);
cudaEventElapsedTime(&elapsed_time, start, end);
return elapsed_time;
}
float seconds_elapsed()
{
return milliseconds_elapsed() / 1000.0;
}
};
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