Man page - papi_set_granularity(3)

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Manual

PAPI_set_granularity

NAME
SYNOPSIS
Detailed Description
Author

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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!\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);

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.

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