def cpu_count():
    """ Returns the default number of slave processes to be spawned.

        The default value is the number of physical cpu cores seen by python.
        :code:`OMP_NUM_THREADS` environment variable overrides it.

        On PBS/torque systems if OMP_NUM_THREADS is empty, we try to
        use the value of :code:`PBS_NUM_PPN` variable.

        Notes
        -----
        On some machines the physical number of cores does not equal
        the number of cpus shall be used. PSC Blacklight for example.

    """
    num = os.getenv("OMP_NUM_THREADS")
    if num is None:
        num = os.getenv("PBS_NUM_PPN")
    try:
        return int(num)
    except:
        return multiprocessing.cpu_count()
def cpu_count():
    """ Returns the default number of slave processes to be spawned.

        The default value is the number of physical cpu cores seen by python.
        :code:`OMP_NUM_THREADS` environment variable overrides it.

        On PBS/torque systems if OMP_NUM_THREADS is empty, we try to
        use the value of :code:`PBS_NUM_PPN` variable.

        Notes
        -----
        On some machines the physical number of cores does not equal
        the number of cpus shall be used. PSC Blacklight for example.

    """
    num = os.getenv("OMP_NUM_THREADS")
    if num is None:
        num = os.getenv("PBS_NUM_PPN")
    try:
        return int(num)
    except:
        return multiprocessing.cpu_count()
def cpu_count ( ) : num = os . getenv ( "OMP_NUM_THREADS" ) if num is None : num = os . getenv ( "PBS_NUM_PPN" ) try : return int ( num ) except : return multiprocessing . cpu_count ( )
Returns the default number of slave processes to be spawned.

        The default value is the number of physical cpu cores seen by python.
        :code:`OMP_NUM_THREADS` environment variable overrides it.

        On PBS/torque systems if OMP_NUM_THREADS is empty, we try to
        use the value of :code:`PBS_NUM_PPN` variable.

        Notes
        -----
        On some machines the physical number of cores does not equal
        the number of cpus shall be used. PSC Blacklight for example.
Returns the default number of slave processes to be spawned .