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.TH "PAPI_set_granularity" 3 "Thu Feb 27 2020" "Version 6.0.0.0" "PAPI" \" -*- nroff -*-
.ad l
.nh
.SH NAME
PAPI_set_granularity \-
.PP
Set the default counting granularity for eventsets bound to the cpu component\&.
.SH SYNOPSIS
.br
.PP
.SH "Detailed Description"
.PP
.PP
.nf
@par C Prototype:
\#include <papi.h> @n
int PAPI_set_granularity( int granularity );
@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
.fi
.PP
.PP
\fBReturn values:\fP
.RS 4
\fIPAPI_OK\fP
.br
\fIPAPI_EINVAL\fP One or more of the arguments is invalid\&.
.RE
.PP
\fBPAPI_set_granularity\fP sets the default counting granularity for all new event sets created by \fBPAPI_create_eventset\fP\&. This call implicitly sets the granularity for the cpu component (component 0) and is included to preserve backward compatibility\&.
.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_granularity(PAPI_GRN_PROC);
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_cmp_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\&.
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