how to exit status of a piped process ??? Post: 302554228

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papi_set_granularity

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
       @par C Prototype:
	       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

       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 5.2.0.0 						  Tue Jun 17 2014					   PAPI_set_granularity(3)

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