1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
|
/*
* (c) 2007 The Board of Trustees of the University of Illinois.
*/
#ifdef __cplusplus
extern "C" {
#endif
#include <unistd.h>
/* Command line parameters for benchmarks */
struct pb_Parameters {
char *outFile; /* If not NULL, the raw output of the
* computation should be saved to this
* file. The string is owned. */
char **inpFiles; /* A NULL-terminated array of strings
* holding the input file(s) for the
* computation. The array and strings
* are owned. */
int synchronizeGpu; /* Controls behavior of CUDA benchmarks.
* If nonzero, a CUDA runtime
* synchronization call should happen
* after each data transfer to the GPU
* and after each kernel call. This
* is necessary for accurate timing
* measurement. */
};
/* Read command-line parameters.
*
* The argc and argv parameters to main are read, and any parameters
* interpreted by this function are removed from the argument list.
*
* A new instance of struct pb_Parameters is returned.
* If there is an error, then an error message is printed on stderr
* and NULL is returned.
*/
struct pb_Parameters *
pb_ReadParameters(int *_argc, char **argv);
/* Free an instance of struct pb_Parameters.
*/
void
pb_FreeParameters(struct pb_Parameters *p);
/* Count the number of input files in a pb_Parameters instance.
*/
int
pb_Parameters_CountInputs(struct pb_Parameters *p);
/* A time or duration. */
#if _POSIX_VERSION >= 200112L
typedef unsigned long long pb_Timestamp; /* time in microseconds */
#else
# error "Timestamps not implemented"
#endif
enum pb_TimerState {
pb_Timer_STOPPED,
pb_Timer_RUNNING,
};
struct pb_Timer {
enum pb_TimerState state;
pb_Timestamp elapsed; /* Amount of time elapsed so far */
pb_Timestamp init; /* Beginning of the current time interval,
* if state is RUNNING. Undefined
* otherwise. */
};
/* Reset a timer.
* Use this to initialize a timer or to clear
* its elapsed time. The reset timer is stopped.
*/
void
pb_ResetTimer(struct pb_Timer *timer);
/* Start a timer. The timer is set to RUNNING mode and
* time elapsed while the timer is running is added to
* the timer.
* The timer should not already be running.
*/
void
pb_StartTimer(struct pb_Timer *timer);
/* Stop a timer.
* This stops adding elapsed time to the timer.
* The timer should not already be stopped.
*/
void
pb_StopTimer(struct pb_Timer *timer);
/* Get the elapsed time in seconds. */
double
pb_GetElapsedTime(struct pb_Timer *timer);
/* Execution time is assigned to one of these categories. */
enum pb_TimerID {
pb_TimerID_NONE = 0,
pb_TimerID_IO, /* Time spent in input/output */
pb_TimerID_GPU, /* Time spent computing on the GPU */
pb_TimerID_COPY, /* Time spent moving data to/from GPU and
* allocating/freeing memory on the GPU */
pb_TimerID_COMPUTE, /* Time for all program execution other
* than parsing command line arguments,
* I/O, GPU, and copy */
pb_TimerID_LAST /* Number of timer IDs */
};
/* A set of timers for recording execution times. */
struct pb_TimerSet {
enum pb_TimerID current;
struct pb_Timer timers[pb_TimerID_LAST];
};
/* Reset all timers in the set. */
void
pb_InitializeTimerSet(struct pb_TimerSet *timers);
/* Select which timer the next interval of time should be accounted
* to. The selected timer is started and other timers are stopped.
* Using pb_TimerID_NONE stops all timers. */
void
pb_SwitchToTimer(struct pb_TimerSet *timers, enum pb_TimerID timer);
/* Print timer values to standard output. */
void
pb_PrintTimerSet(struct pb_TimerSet *timers);
#ifdef __cplusplus
}
#endif
|
