PAPI_set_cmp_granularity - Set the default counting granularity for eventsets bound to the specified

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Version 7.1.0.0                                  Thu Dec 14 2023                     PAPI_set_cmp_granularity(3)

CPrototype:
           #include <papi.h>
            int PAPI_set_cmp_granularity(intgranularity,intcidx);

       Parametersgranularity 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
           cidx An integer identifier for a component. By convention, component 0 is always the cpu component.

       ReturnvaluesPAPI_OKPAPI_EINVAL One or more of the arguments is invalid.
           PAPI_ENOCMP The argument cidx is not a valid component.

       PAPI_set_cmp_granularity  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.
       To change the granularity of an existing event set, please see PAPI_set_opt. The reader should note  that
       the granularity of an event set affects only the mode in which the counter continues to run.
       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_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);

       SeealsoPAPI_set_granularityPAPI_set_domainPAPI_set_optPAPI_get_opt

       PAPI_set_cmp_granularity - Set the default counting granularity for eventsets bound to the specified
       component.