PAPI_get_opt(3) PAPI PAPI_get_opt(3)NAMEPAPI_get_opt-
Get PAPI library or event set options.
SYNOPSISDetailed Description
C Interface:
#include <papi.h>
int PAPI_get_opt( int option, PAPI_option_t * ptr );
Parameters:
option Defines the option to get. 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_ECMP The option is not implemented for the current component.
PAPI_ENOINIT PAPI has not been initialized.
PAPI_get_opt() queries the options of the PAPI library or a specific
event set 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 returns
different values in the structure. Some options require a component
index to be provided. These options are handled explicitly by the
PAPI_get_cmp_opt() call.
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_get_opt option parameter
OPTION DEFINITION PAPI_DEFDOM Get default counting
domain for newly created event sets. Requires a component index.
PAPI_DEFGRN Get default counting granularity. Requires a
component index. PAPI_DEBUG Get 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
Get current multiplexing state for specified EventSet.
PAPI_DEF_ITIMER Get the type of itimer used in software
multiplexing, overflowing and profiling. PAPI_DEF_MPX_NS Get the
sampling time slice in nanoseconds for multiplexing and overflow.
PAPI_DEF_ITIMER_NS See PAPI_DEF_MPX_NS. PAPI_ATTACH Get
thread or process id to which event set is attached. Returns TRUE
if currently attached. PAPI_CPU_ATTACH Get ptr->cpu.cpu_num and
Attach state for EventSet specified in ptr->cpu.eventset.
PAPI_DETACH Get thread or process id to which event set is
attached. Returns TRUE if currently attached. PAPI_DOMAIN Get
domain for EventSet specified in ptr->domain.eventset. Will error
if eventset is not bound to a component. PAPI_GRANUL Get
granularity for EventSet specified in ptr->granularity.eventset.
Will error if eventset is not bound to a component. PAPI_INHERIT
Get current inheritance state for specified EventSet. PAPI_PRELOAD
Get LD_PRELOAD environment equivalent. PAPI_CLOCKRATE Get
clockrate in MHz. PAPI_MAX_CPUS Get number of CPUs.
PAPI_EXEINFO Get Executable addresses for text/data/bss.
PAPI_HWINFO Get information about the hardware.
PAPI_LIB_VERSION Get the full PAPI version of the library.
PAPI_MAX_HWCTRS Get number of counters. Requires a component index.
PAPI_MAX_MPX_CTRS Get maximum number of multiplexing counters.
Requires a component index. PAPI_SHLIBINFO Get shared library
information used by the program. PAPI_COMPONENTINFO Get the PAPI
features the specified component supports. Requires a component
index.
See Also:
PAPI_get_multiplex
PAPI_get_cmp_opt
PAPI_set_opt
PAPI_option_t
Author
Generated automatically by Doxygen for PAPI from the source code.
Version 5.2.0.0 Mon Oct 28 2013 PAPI_get_opt(3)
