Point Cloud Library (PCL) 1.15.0
Loading...
Searching...
No Matches
timers_cuda.hpp
1/*
2 * Software License Agreement (BSD License)
3 *
4 * Copyright (c) 2011, Willow Garage, Inc.
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 *
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above
14 * copyright notice, this list of conditions and the following
15 * disclaimer in the documentation and/or other materials provided
16 * with the distribution.
17 * * Neither the name of Willow Garage, Inc. nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
29 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
31 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
32 * POSSIBILITY OF SUCH DAMAGE.
33 *
34 * Author: Anatoly Baskeheev, Itseez Ltd, (myname.mysurname@mycompany.com)
35 */
36
37#ifndef _PCL_CUDA_TIMERS_HPP_
38#define _PCL_CUDA_TIMERS_HPP_
39
40#include <cuda_runtime_api.h>
41#include <cstdio>
42
43namespace pcl
44{
45 namespace gpu
46 {
47 struct Timer
48 {
49 cudaEvent_t start_, stop_;
50 Timer(bool runTimer = false)
51 {
52 cudaEventCreate(&start_);
53 cudaEventCreate(&stop_);
54 if (runTimer)
55 start();
56 }
58 {
59 cudaEventDestroy(start_);
60 cudaEventDestroy(stop_);
61 }
62
63 void start() const { cudaEventRecord(start_, 0); }
64 Timer& stop() { cudaEventRecord(stop_, 0); cudaEventSynchronize(stop_); return *this; }
65
66 float time() const
67 {
68 float elapsed_time;
69 cudaEventElapsedTime(&elapsed_time, start_, stop_);
70 return elapsed_time;
71 }
72 };
73
75 {
76 const char* name;
77 cudaEvent_t start, stop;
78 ScopeTimer(const char* name_) : name(name_)
79 {
80 cudaEventCreate(&start);
81 cudaEventCreate(&stop);
82 cudaEventRecord(start);
83 }
85 {
86 float elapsed_time;
87 cudaEventRecord(stop);
88 cudaEventSynchronize(stop);
89 cudaEventElapsedTime(&elapsed_time, start, stop);
90 printf("Time(%s) = %fms\n", name, elapsed_time);
91 cudaEventDestroy(start);
92 cudaEventDestroy(stop);
93 }
94 };
95 }
96}
97
98#endif /* _PCL_CUDA_TIMERS_HPP_ */
ScopeTimer(const char *name_)
Timer(bool runTimer=false)
void start() const
cudaEvent_t start_
cudaEvent_t stop_
float time() const