PAPI_set_opt(3) PAPI PAPI_set_opt(3)NAMEPAPI_set_opt-
Set PAPI library or event set options.
SYNOPSISDetailed Description
C Interface:
#include <papi.h>
int PAPI_set_opt( int option, PAPI_option_t * ptr );
Parameters:
option Defines the option to be set. Possible values are briefly
described in the table below.
ptr Pointer to a structure determined by the selected option. See
PAPI_option_t for a description of possible structures.
Return values:
PAPI_OK
PAPI_EINVAL The specified option or parameter is invalid.
PAPI_ENOEVST The EventSet specified does not exist.
PAPI_EISRUN The EventSet is currently counting events.
PAPI_ECMP The option is not implemented for the current component.
PAPI_ENOINIT PAPI has not been initialized.
PAPI_EINVAL_DOM Invalid domain has been requested.
PAPI_set_opt() changes the options of the PAPI library or a specific
EventSet created by PAPI_create_eventset. Some options may require that
the EventSet be bound to a component before they can execute
successfully. This can be done either by adding an event or by
explicitly calling PAPI_assign_eventset_component.
Ptr is a pointer to the PAPI_option_t structure, which is actually a
union of different structures for different options. Not all options
require or return information in these structures. Each requires
different values to be set. Some options require a component index to
be provided. These options are handled implicitly through the option
structures.
Note:
Some options, such as PAPI_DOMAIN and PAPI_MULTIPLEX are also
available as separate entry points in both C and Fortran.
The reader is encouraged to peruse the ctests code in the PAPI
distribution for examples of usage of PAPI_set_opt.
Possible values for the PAPI_set_opt option parameter
OPTION DEFINITION PAPI_DEFDOM Set default counting
domain for newly created event sets. Requires a
component index. PAPI_DEFGRN Set default
counting granularity. Requires a component index. PAPI_DEBUG
Set the PAPI debug state and the debug handler. The debug state is
specified in ptr->debug.level. The debug handler is
specified in
ptr->debug.handler. For further information
regarding debug states and
the behavior of the handler, see PAPI_set_debug.
PAPI_MULTIPLEX Enable specified EventSet for multiplexing.
PAPI_DEF_ITIMER Set the type of itimer used in software
multiplexing, overflowing
and profiling. PAPI_DEF_MPX_NS Set the sampling
time slice in nanoseconds for multiplexing and overflow.
PAPI_DEF_ITIMER_NS See PAPI_DEF_MPX_NS. PAPI_ATTACH Attach
EventSet specified in ptr->attach.eventset to thread or process id
specified in in ptr->attach.tid. PAPI_CPU_ATTACH
Attach EventSet specified in ptr->cpu.eventset to cpu specified in
in
ptr->cpu.cpu_num. PAPI_DETACH Detach EventSet
specified in ptr->attach.eventset from any thread
or process id. PAPI_DOMAIN Set domain for
EventSet specified in ptr->domain.eventset.
Will error if eventset is not bound to a component.
PAPI_GRANUL Set granularity for EventSet specified in
ptr->granularity.eventset.
Will error if eventset is not bound to a component.
PAPI_INHERIT Enable or disable inheritance for specified
EventSet. PAPI_DATA_ADDRESS Set data address range to restrict
event counting for EventSet specified
in ptr->addr.eventset. Starting and ending
addresses are specified in
ptr->addr.start and ptr->addr.end, respectively. If
exact addresses
cannot be instantiated, offsets are returned in
ptr->addr.start_off and
ptr->addr.end_off. Currently implemented on Itanium
only. PAPI_INSTR_ADDRESS Set instruction address range as
described above. Itanium only.
See Also:
PAPI_set_debug
PAPI_set_multiplex
PAPI_set_domain
PAPI_option_t
Author
Generated automatically by Doxygen for PAPI from the source code.
Version 5.2.0.0 Mon Oct 28 2013 PAPI_set_opt(3)
