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
|
.TH "PAPI_set_cmp_granularity" 3 "Mon Jun 30 2014" "Version 5.3.2.0" "PAPI" \" -*- nroff -*-
.ad l
.nh
.SH NAME
PAPI_set_cmp_granularity \-
.PP
Set the default counting granularity for eventsets bound to the specified component\&.
.SH SYNOPSIS
.br
.PP
.SH "Detailed Description"
.PP
.PP
.nf
@par C Prototype:
\#include <papi.h> @n
int PAPI_set_cmp_granularity( int granularity, int cidx );
@param granularity one of the following constants as defined in the papi.h header file
@arg PAPI_GRN_THR Count each individual thread
@arg PAPI_GRN_PROC Count each individual process
@arg PAPI_GRN_PROCG Count each individual process group
@arg PAPI_GRN_SYS Count the current CPU
@arg PAPI_GRN_SYS_CPU Count all CPUs individually
@arg PAPI_GRN_MIN The finest available granularity
@arg PAPI_GRN_MAX The coarsest available granularity
@param cidx
An integer identifier for a component.
By convention, component 0 is always the cpu component.
.fi
.PP
.PP
\fBReturn values:\fP
.RS 4
\fIPAPI_OK\fP
.br
\fIPAPI_EINVAL\fP One or more of the arguments is invalid\&.
.br
\fIPAPI_ENOCMP\fP The argument cidx is not a valid component\&.
.RE
.PP
\fBPAPI_set_cmp_granularity\fP sets the default counting granularity for all new event sets, and requires an explicit component argument\&. Event sets that are already in existence are not affected\&.
.PP
To change the granularity of an existing event set, please see \fBPAPI_set_opt\fP\&. The reader should note that the granularity of an event set affects only the mode in which the counter continues to run\&.
.PP
\fBExample:\fP
.RS 4
.PP
.nf
int ret;
// Initialize the library
ret = PAPI_library_init(PAPI_VER_CURRENT);
if (ret > 0 && ret != PAPI_VER_CURRENT) {
fprintf(stderr,"PAPI library version mismatch!\n");
exit(1);
}
if (ret < 0) handle_error(ret);
// Set the default granularity for the cpu component
ret = PAPI_set_cmp_granularity(PAPI_GRN_PROC, 0);
if (ret != PAPI_OK) handle_error(ret);
ret = PAPI_create_eventset(&EventSet);
if (ret != PAPI_OK) handle_error(ret);
*
.fi
.PP
.RE
.PP
\fBSee Also:\fP
.RS 4
\fBPAPI_set_granularity\fP \fBPAPI_set_domain\fP \fBPAPI_set_opt\fP \fBPAPI_get_opt\fP
.RE
.PP
.SH "Author"
.PP
Generated automatically by Doxygen for PAPI from the source code\&.
|
