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PAPI_enum_event(3) PAPI PAPI_enum_event(3)

NAME

PAPI_enum_event - Enumerate PAPI preset or native events.

SYNOPSIS

Detailed Description

C Interface:

#include <papi.h>
int PAPI_enum_event( int * EventCode, int modifier );

Given a preset or native event code, PAPI_enum_event replaces the event code with the next available event in either the preset or native table. The modifier argument affects which events are returned. For all platforms and event types, a value of PAPI_ENUM_ALL (zero) directs the function to return all possible events.
For preset events, a TRUE (non-zero) value currently directs the function to return event codes only for PAPI preset events available on this platform. This may change in the future. For native events, the effect of the modifier argument is different on each platform. See the discussion below for platform-specific definitions.

Parameters

*EventCode A defined preset or native event such as PAPI_TOT_INS.
modifier Modifies the search logic. See below for full list. For native events, each platform behaves differently. See platform-specific documentation for details.

Return values

PAPI_ENOEVNT The next requested PAPI preset or native event is not available on the underlying hardware.

Examples:

// Scan for all supported native events on this platform
printf( "Name\t\t\t       Code\t   Description\n" );
do {


    retval = PAPI_get_event_info( i, &info );


    if ( retval == PAPI_OK ) {


    printf( "%-30s %#-10x\n%s\n", info.symbol, info.event_code, info.long_descr );


    }
} while ( PAPI_enum_event( &i, PAPI_ENUM_ALL ) == PAPI_OK );


@par Generic Modifiers


The following values are implemented for preset events

  • PAPI_ENUM_EVENTS -- Enumerate all (default)
  • PAPI_ENUM_FIRST -- Enumerate first event (preset or native) preset/native chosen based on type of EventCode

@par Native Modifiers


The following values are implemented for native events

  • PAPI_NTV_ENUM_UMASKS -- Given an event, iterate through possible umasks one at a time
  • PAPI_NTV_ENUM_UMASK_COMBOS -- Given an event, iterate through all possible combinations of umasks. This is not implemented on libpfm4.

Preset Modifiers

The following values are implemented for preset events
•
PAPI_PRESET_ENUM_AVAIL -- enumerate only available presets

See also

PAPI
PAPIF
PAPI_enum_cmp_event
PAPI_get_event_info
PAPI_event_name_to_code
PAPI_preset
PAPI_native

Author

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Mon Feb 24 2025 21:11:21 Version 7.2.0.0b2