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papi_get_virt_cyc(3) [centos man page]

PAPI_get_virt_cyc(3)						       PAPI						      PAPI_get_virt_cyc(3)

NAME
PAPI_get_virt_cyc - get virtual time counter value in clock cycles SYNOPSIS
Detailed Description @retval PAPI_ECNFLCT If there is no master event set. This will happen if the library has not been initialized, or for threaded applications, if there has been no thread id function defined by the PAPI_thread_init function. @retval PAPI_ENOMEM For threaded applications, if there has not yet been any thread specific master event created for the current thread, and if the allocation of such an event set fails, the call will return PAPI_ENOMEM or PAPI_ESYS . This function returns the total number of virtual units from some arbitrary starting point. Virtual units accrue every time the process is running in user-mode on behalf of the process. Like the real time counters, this count is guaranteed to exist on every platform PAPI supports. However on some platforms, the resolution can be as bad as 1/Hz as defined by the operating system. @par Examples: s = PAPI_get_virt_cyc(); your_slow_code(); e = PAPI_get_virt_cyc(); printf("Process has run for cycles: %lld ",e-s); * Author Generated automatically by Doxygen for PAPI from the source code. Version 5.2.0.0 Tue Jun 17 2014 PAPI_get_virt_cyc(3)

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PAPI_add_named_event(3) 					       PAPI						   PAPI_add_named_event(3)

NAME
PAPI_add_named_event - add PAPI preset or native hardware event by name to an EventSet SYNOPSIS
Detailed Description @par C Interface: int PAPI_add_named_event( int EventSet, char *EventName ); PAPI_add_named_event adds one event to a PAPI EventSet. @n A hardware event can be either a PAPI preset or a native hardware event code. For a list of PAPI preset events, see PAPI_presets or run the avail test case in the PAPI distribution. PAPI presets can be passed to PAPI_query_event to see if they exist on the underlying architecture. For a list of native events available on current platform, run the papi_native_avail utility in the PAPI distribution. @param EventSet An integer handle for a PAPI Event Set as created by PAPI_create_eventset. @param EventCode A defined event such as PAPI_TOT_INS. @retval Positive-Integer The number of consecutive elements that succeeded before the error. @retval PAPI_EINVAL One or more of the arguments is invalid. @retval PAPI_ENOINIT The PAPI library has not been initialized. @retval PAPI_ENOMEM Insufficient memory to complete the operation. @retval PAPI_ENOEVST The event set specified does not exist. @retval PAPI_EISRUN The event set is currently counting events. @retval PAPI_ECNFLCT The underlying counter hardware can not count this event and other events in the event set simultaneously. @retval PAPI_ENOEVNT The PAPI preset is not available on the underlying hardware. @retval PAPI_EBUG Internal error, please send mail to the developers. @par Examples: * char EventName = "PAPI_TOT_INS"; * int EventSet = PAPI_NULL; * unsigned int native = 0x0; * if ( PAPI_create_eventset( &EventSet ) != PAPI_OK ) * handle_error( 1 ); * // Add Total Instructions Executed to our EventSet * if ( PAPI_add_named_event( EventSet, EventName ) != PAPI_OK ) * handle_error( 1 ); * // Add native event PM_CYC to EventSet * if ( PAPI_add_named_event( EventSet, "PM_CYC" ) != PAPI_OK ) * handle_error( 1 ); * @see PAPI_add_event @n PAPI_query_named_event @n PAPI_remove_named_event.fi Author Generated automatically by Doxygen for PAPI from the source code. Version 5.2.0.0 Tue Jun 17 2014 PAPI_add_named_event(3)
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