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PAPI_set_granularity(3) PAPI PAPI_set_granularity(3)
NAME
PAPI_set_granularity -
Set the default counting granularity for eventsets bound to the cpu
component.
SYNOPSIS
Detailed Description
C Prototype:
#include <papi.h>
int PAPI_set_granularity( int granularity );
Parameters:
-- granularity one of the following constants as defined in the
papi.h header file
· PAPI_GRN_THR -- Count each individual thread
· PAPI_GRN_PROC -- Count each individual process
· PAPI_GRN_PROCG -- Count each individual process group
· PAPI_GRN_SYS -- Count the current CPU
· PAPI_GRN_SYS_CPU -- Count all CPUs individually
· PAPI_GRN_MIN -- The finest available granularity
· PAPI_GRN_MAX -- The coarsest available granularity
Return values:
PAPI_OK
PAPI_EINVAL One or more of the arguments is invalid.
PAPI_set_granularity sets the default counting granularity for all new
event sets created by PAPI_create_eventset. This call implicitly sets
the granularity for the cpu component (component 0) and is included to
preserve backward compatibility.
Example:
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!0);
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);
See also:
PAPI_set_cmp_granularity PAPI_set_domain PAPI_set_opt PAPI_get_opt
Author
Generated automatically by Doxygen for PAPI from the source code.
Version 5.1.1.0 Tue May 21 2013 PAPI_set_granularity(3)
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