PAPI_get_multiplex(3)

NAME
PAPI_get_multiplex -

Get the multiplexing status of specified event set.

SYNOPSIS

Detailed Description

C Interface:
    #include <papi.h>
     int PAPI_get_multiplex( int EventSet );

Fortran Interface:
    #include fpapi.h
     PAPIF_get_multiplex( C_INT EventSet, C_INT check )

Parameters:
    EventSet an integer handle for a PAPI event set as created by PAPI_create_eventset

Return values:
    PAPI_OK
    PAPI_EINVAL One or more of the arguments is invalid, or the EventSet is already multiplexed.
    PAPI_ENOEVST The EventSet specified does not exist.
    PAPI_EISRUN The EventSet is currently counting events.
    PAPI_ENOMEM Insufficient memory to complete the operation.

PAPI_get_multiplex tests the state of the PAPI_MULTIPLEXING flag in the specified event set, returning TRUE if a PAPI event set is multiplexed, or FALSE if not.

Example:

        int EventSet = PAPI_NULL;
        int ret;

        // Create an empty EventSet
        ret = PAPI_create_eventset(&EventSet);
        if (ret != PAPI_OK) handle_error(ret);

        // Bind it to the CPU component
        ret = PAPI_assign_eventset_component(EventSet, 0);
        if (ret != PAPI_OK) handle_error(ret);

        // Check  current multiplex status
        ret = PAPI_get_multiplex(EventSet);
        if (ret == TRUE) printf('This event set is ready for multiplexing')
        if (ret == FALSE) printf('This event set is not enabled for multiplexing')
        if (ret < 0) handle_error(ret);

        // Turn on multiplexing
        ret = PAPI_set_multiplex(EventSet);
        if ((ret == PAPI_EINVAL) && (PAPI_get_multiplex(EventSet) == TRUE))
          printf('This event set already has multiplexing enabled);
        else if (ret != PAPI_OK) handle_error(ret);

See also:
    PAPI_multiplex_init

    PAPI_set_opt

    PAPI_create_eventset

Author

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