mirror of
https://github.com/NVIDIA/cuda-samples.git
synced 2024-11-24 17:19:16 +08:00
466 lines
16 KiB
C++
466 lines
16 KiB
C++
/* Copyright (c) 2022, NVIDIA CORPORATION. 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 NVIDIA CORPORATION 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 ``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.
|
|
*/
|
|
|
|
// Helper Timing Functions
|
|
#ifndef COMMON_HELPER_TIMER_H_
|
|
#define COMMON_HELPER_TIMER_H_
|
|
|
|
#ifndef EXIT_WAIVED
|
|
#define EXIT_WAIVED 2
|
|
#endif
|
|
|
|
// includes, system
|
|
#include <vector>
|
|
|
|
// includes, project
|
|
#include <exception.h>
|
|
|
|
// Definition of the StopWatch Interface, this is used if we don't want to use
|
|
// the CUT functions But rather in a self contained class interface
|
|
class StopWatchInterface {
|
|
public:
|
|
StopWatchInterface() {}
|
|
virtual ~StopWatchInterface() {}
|
|
|
|
public:
|
|
//! Start time measurement
|
|
virtual void start() = 0;
|
|
|
|
//! Stop time measurement
|
|
virtual void stop() = 0;
|
|
|
|
//! Reset time counters to zero
|
|
virtual void reset() = 0;
|
|
|
|
//! Time in msec. after start. If the stop watch is still running (i.e. there
|
|
//! was no call to stop()) then the elapsed time is returned, otherwise the
|
|
//! time between the last start() and stop call is returned
|
|
virtual float getTime() = 0;
|
|
|
|
//! Mean time to date based on the number of times the stopwatch has been
|
|
//! _stopped_ (ie finished sessions) and the current total time
|
|
virtual float getAverageTime() = 0;
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////
|
|
// Begin Stopwatch timer class definitions for all OS platforms //
|
|
//////////////////////////////////////////////////////////////////
|
|
#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
|
|
// includes, system
|
|
#define WINDOWS_LEAN_AND_MEAN
|
|
#include <windows.h>
|
|
#undef min
|
|
#undef max
|
|
|
|
//! Windows specific implementation of StopWatch
|
|
class StopWatchWin : public StopWatchInterface {
|
|
public:
|
|
//! Constructor, default
|
|
StopWatchWin()
|
|
: start_time(),
|
|
end_time(),
|
|
diff_time(0.0f),
|
|
total_time(0.0f),
|
|
running(false),
|
|
clock_sessions(0),
|
|
freq(0),
|
|
freq_set(false) {
|
|
if (!freq_set) {
|
|
// helper variable
|
|
LARGE_INTEGER temp;
|
|
|
|
// get the tick frequency from the OS
|
|
QueryPerformanceFrequency(reinterpret_cast<LARGE_INTEGER *>(&temp));
|
|
|
|
// convert to type in which it is needed
|
|
freq = (static_cast<double>(temp.QuadPart)) / 1000.0;
|
|
|
|
// rememeber query
|
|
freq_set = true;
|
|
}
|
|
}
|
|
|
|
// Destructor
|
|
~StopWatchWin() {}
|
|
|
|
public:
|
|
//! Start time measurement
|
|
inline void start();
|
|
|
|
//! Stop time measurement
|
|
inline void stop();
|
|
|
|
//! Reset time counters to zero
|
|
inline void reset();
|
|
|
|
//! Time in msec. after start. If the stop watch is still running (i.e. there
|
|
//! was no call to stop()) then the elapsed time is returned, otherwise the
|
|
//! time between the last start() and stop call is returned
|
|
inline float getTime();
|
|
|
|
//! Mean time to date based on the number of times the stopwatch has been
|
|
//! _stopped_ (ie finished sessions) and the current total time
|
|
inline float getAverageTime();
|
|
|
|
private:
|
|
// member variables
|
|
|
|
//! Start of measurement
|
|
LARGE_INTEGER start_time;
|
|
//! End of measurement
|
|
LARGE_INTEGER end_time;
|
|
|
|
//! Time difference between the last start and stop
|
|
float diff_time;
|
|
|
|
//! TOTAL time difference between starts and stops
|
|
float total_time;
|
|
|
|
//! flag if the stop watch is running
|
|
bool running;
|
|
|
|
//! Number of times clock has been started
|
|
//! and stopped to allow averaging
|
|
int clock_sessions;
|
|
|
|
//! tick frequency
|
|
double freq;
|
|
|
|
//! flag if the frequency has been set
|
|
bool freq_set;
|
|
};
|
|
|
|
// functions, inlined
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Start time measurement
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline void StopWatchWin::start() {
|
|
QueryPerformanceCounter(reinterpret_cast<LARGE_INTEGER *>(&start_time));
|
|
running = true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Stop time measurement and increment add to the current diff_time summation
|
|
//! variable. Also increment the number of times this clock has been run.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline void StopWatchWin::stop() {
|
|
QueryPerformanceCounter(reinterpret_cast<LARGE_INTEGER *>(&end_time));
|
|
diff_time = static_cast<float>(((static_cast<double>(end_time.QuadPart) -
|
|
static_cast<double>(start_time.QuadPart)) /
|
|
freq));
|
|
|
|
total_time += diff_time;
|
|
clock_sessions++;
|
|
running = false;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Reset the timer to 0. Does not change the timer running state but does
|
|
//! recapture this point in time as the current start time if it is running.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline void StopWatchWin::reset() {
|
|
diff_time = 0;
|
|
total_time = 0;
|
|
clock_sessions = 0;
|
|
|
|
if (running) {
|
|
QueryPerformanceCounter(reinterpret_cast<LARGE_INTEGER *>(&start_time));
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Time in msec. after start. If the stop watch is still running (i.e. there
|
|
//! was no call to stop()) then the elapsed time is returned added to the
|
|
//! current diff_time sum, otherwise the current summed time difference alone
|
|
//! is returned.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline float StopWatchWin::getTime() {
|
|
// Return the TOTAL time to date
|
|
float retval = total_time;
|
|
|
|
if (running) {
|
|
LARGE_INTEGER temp;
|
|
QueryPerformanceCounter(reinterpret_cast<LARGE_INTEGER *>(&temp));
|
|
retval += static_cast<float>(((static_cast<double>(temp.QuadPart) -
|
|
static_cast<double>(start_time.QuadPart)) /
|
|
freq));
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Time in msec. for a single run based on the total number of COMPLETED runs
|
|
//! and the total time.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline float StopWatchWin::getAverageTime() {
|
|
return (clock_sessions > 0) ? (total_time / clock_sessions) : 0.0f;
|
|
}
|
|
#else
|
|
// Declarations for Stopwatch on Linux and Mac OSX
|
|
// includes, system
|
|
#include <sys/time.h>
|
|
#include <ctime>
|
|
|
|
//! Windows specific implementation of StopWatch
|
|
class StopWatchLinux : public StopWatchInterface {
|
|
public:
|
|
//! Constructor, default
|
|
StopWatchLinux()
|
|
: start_time(),
|
|
diff_time(0.0),
|
|
total_time(0.0),
|
|
running(false),
|
|
clock_sessions(0) {}
|
|
|
|
// Destructor
|
|
virtual ~StopWatchLinux() {}
|
|
|
|
public:
|
|
//! Start time measurement
|
|
inline void start();
|
|
|
|
//! Stop time measurement
|
|
inline void stop();
|
|
|
|
//! Reset time counters to zero
|
|
inline void reset();
|
|
|
|
//! Time in msec. after start. If the stop watch is still running (i.e. there
|
|
//! was no call to stop()) then the elapsed time is returned, otherwise the
|
|
//! time between the last start() and stop call is returned
|
|
inline float getTime();
|
|
|
|
//! Mean time to date based on the number of times the stopwatch has been
|
|
//! _stopped_ (ie finished sessions) and the current total time
|
|
inline float getAverageTime();
|
|
|
|
private:
|
|
// helper functions
|
|
|
|
//! Get difference between start time and current time
|
|
inline float getDiffTime();
|
|
|
|
private:
|
|
// member variables
|
|
|
|
//! Start of measurement
|
|
struct timeval start_time;
|
|
|
|
//! Time difference between the last start and stop
|
|
float diff_time;
|
|
|
|
//! TOTAL time difference between starts and stops
|
|
float total_time;
|
|
|
|
//! flag if the stop watch is running
|
|
bool running;
|
|
|
|
//! Number of times clock has been started
|
|
//! and stopped to allow averaging
|
|
int clock_sessions;
|
|
};
|
|
|
|
// functions, inlined
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Start time measurement
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline void StopWatchLinux::start() {
|
|
gettimeofday(&start_time, 0);
|
|
running = true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Stop time measurement and increment add to the current diff_time summation
|
|
//! variable. Also increment the number of times this clock has been run.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline void StopWatchLinux::stop() {
|
|
diff_time = getDiffTime();
|
|
total_time += diff_time;
|
|
running = false;
|
|
clock_sessions++;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Reset the timer to 0. Does not change the timer running state but does
|
|
//! recapture this point in time as the current start time if it is running.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline void StopWatchLinux::reset() {
|
|
diff_time = 0;
|
|
total_time = 0;
|
|
clock_sessions = 0;
|
|
|
|
if (running) {
|
|
gettimeofday(&start_time, 0);
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Time in msec. after start. If the stop watch is still running (i.e. there
|
|
//! was no call to stop()) then the elapsed time is returned added to the
|
|
//! current diff_time sum, otherwise the current summed time difference alone
|
|
//! is returned.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline float StopWatchLinux::getTime() {
|
|
// Return the TOTAL time to date
|
|
float retval = total_time;
|
|
|
|
if (running) {
|
|
retval += getDiffTime();
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Time in msec. for a single run based on the total number of COMPLETED runs
|
|
//! and the total time.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline float StopWatchLinux::getAverageTime() {
|
|
return (clock_sessions > 0) ? (total_time / clock_sessions) : 0.0f;
|
|
}
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline float StopWatchLinux::getDiffTime() {
|
|
struct timeval t_time;
|
|
gettimeofday(&t_time, 0);
|
|
|
|
// time difference in milli-seconds
|
|
return static_cast<float>(1000.0 * (t_time.tv_sec - start_time.tv_sec) +
|
|
(0.001 * (t_time.tv_usec - start_time.tv_usec)));
|
|
}
|
|
#endif // WIN32
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Timer functionality exported
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Create a new timer
|
|
//! @return true if a time has been created, otherwise false
|
|
//! @param name of the new timer, 0 if the creation failed
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline bool sdkCreateTimer(StopWatchInterface **timer_interface) {
|
|
// printf("sdkCreateTimer called object %08x\n", (void *)*timer_interface);
|
|
#if defined(WIN32) || defined(_WIN32) || defined(WIN64) || defined(_WIN64)
|
|
*timer_interface = reinterpret_cast<StopWatchInterface *>(new StopWatchWin());
|
|
#else
|
|
*timer_interface =
|
|
reinterpret_cast<StopWatchInterface *>(new StopWatchLinux());
|
|
#endif
|
|
return (*timer_interface != NULL) ? true : false;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Delete a timer
|
|
//! @return true if a time has been deleted, otherwise false
|
|
//! @param name of the timer to delete
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline bool sdkDeleteTimer(StopWatchInterface **timer_interface) {
|
|
// printf("sdkDeleteTimer called object %08x\n", (void *)*timer_interface);
|
|
if (*timer_interface) {
|
|
delete *timer_interface;
|
|
*timer_interface = NULL;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Start the time with name \a name
|
|
//! @param name name of the timer to start
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline bool sdkStartTimer(StopWatchInterface **timer_interface) {
|
|
// printf("sdkStartTimer called object %08x\n", (void *)*timer_interface);
|
|
if (*timer_interface) {
|
|
(*timer_interface)->start();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Stop the time with name \a name. Does not reset.
|
|
//! @param name name of the timer to stop
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline bool sdkStopTimer(StopWatchInterface **timer_interface) {
|
|
// printf("sdkStopTimer called object %08x\n", (void *)*timer_interface);
|
|
if (*timer_interface) {
|
|
(*timer_interface)->stop();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Resets the timer's counter.
|
|
//! @param name name of the timer to reset.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline bool sdkResetTimer(StopWatchInterface **timer_interface) {
|
|
// printf("sdkResetTimer called object %08x\n", (void *)*timer_interface);
|
|
if (*timer_interface) {
|
|
(*timer_interface)->reset();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Return the average time for timer execution as the total time
|
|
//! for the timer dividied by the number of completed (stopped) runs the timer
|
|
//! has made.
|
|
//! Excludes the current running time if the timer is currently running.
|
|
//! @param name name of the timer to return the time of
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline float sdkGetAverageTimerValue(StopWatchInterface **timer_interface) {
|
|
// printf("sdkGetAverageTimerValue called object %08x\n", (void
|
|
// *)*timer_interface);
|
|
if (*timer_interface) {
|
|
return (*timer_interface)->getAverageTime();
|
|
} else {
|
|
return 0.0f;
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
//! Total execution time for the timer over all runs since the last reset
|
|
//! or timer creation.
|
|
//! @param name name of the timer to obtain the value of.
|
|
////////////////////////////////////////////////////////////////////////////////
|
|
inline float sdkGetTimerValue(StopWatchInterface **timer_interface) {
|
|
// printf("sdkGetTimerValue called object %08x\n", (void *)*timer_interface);
|
|
if (*timer_interface) {
|
|
return (*timer_interface)->getTime();
|
|
} else {
|
|
return 0.0f;
|
|
}
|
|
}
|
|
|
|
#endif // COMMON_HELPER_TIMER_H_
|