def __init__(self):
try:
cpus = cpu_count()
except NotImplementedError:
cpus = 1
self._taskqueue = Queue(maxsize=(2 * cpus))
Pool.__init__(self)
def __init__(self, processes=None, initializer=None, initargs=(), process=None): """ @param process: Process subclass to use """ if process is not None: self.Process = process Pool.__init__(self, processes, initializer, initargs)
def __init__(self):
try:
cpus = cpu_count()
except NotImplementedError:
cpus = 1
self._taskqueue = Queue(maxsize=(2 * cpus))
Pool.__init__(self)
def __init__(self,
processes=None,
initializer=None,
initargs=(),
maxtasksperchild=None):
if max_top_workers:
processes = int(max_top_workers)
Pool.__init__(self, processes, initializer, initargs, maxtasksperchild)
def __init__(self,
ncpu,
initializer=None,
initargs=(),
maxtasksperchild=None,
limit=True):
"""
INPUTS
------
ncpu: int (default 0, i.e, built-in map behavior)
number of cpu to use for the mapping.
0 is equivalent to calling the built-in map function
<0 is equivalent to requesting all cpus
initializer: callable
if set, each worker process will call initializer(*initargs) when
it starts.
initargs: tuple
arguments to use with the initializer
maxtasksperchild: int
number of tasks a worker process can complete before it will exit
and be replaced with a fresh worker process, to enable unused
resources to be freed. The default maxtasksperchild is None, which
means worker processes will live as long as the pool.
limit: bool (default True)
if ncpu is greater than the number of available cpus, setting this
keyword will limit the request to the maximum available
Note: sometimes the os load controller does awesome and some speed-up
could be obtained when requesting more cpus than available
"""
_n = _mp.cpu_count()
if (ncpu <= 0): # use all available cpus
self._n = _n
elif (ncpu > _n) & (limit is True):
self._n = _n
else:
self._n = ncpu
new_initializer = Partial(_initializer_wrapper, initializer)
_Pool.__init__(self,
processes=self._n,
initializer=new_initializer,
initargs=initargs,
maxtasksperchild=maxtasksperchild)
def __init__(self, *args, **kwargs):
handler = None
if logging.getLogger().handlers:
# Use an existing lo handler if already setup.
handler = logging.getLogger().handlers[0]
else:
# Otherwise use some good defaults.
handler = logging.StreamHandler(sys.stderr)
handler.setLevel(logging.INFO)
handler.setFormat(
logging.Formatter(
'%(created)f %(filename)s:%(lineno)s [%(funcName)s] %(message)s'))
multiprocessing.get_logger().addHandler(handler)
kwargs['initializer'] = lambda: signal.signal(signal.SIGINT,
signal.SIG_IGN)
NativePool.__init__(self, *args, **kwargs)
self.results = []
self.prev_message = None
def __init__(self, *args, **kwargs):
handler = None
if logging.getLogger().handlers:
# Use an existing lo handler if already setup.
handler = logging.getLogger().handlers[0]
else:
# Otherwise use some good defaults.
handler = logging.StreamHandler(sys.stderr)
handler.setLevel(logging.INFO)
handler.setFormat(
logging.Formatter(
'%(created)f %(filename)s:%(lineno)s [%(funcName)s] %(message)s'
))
multiprocessing.get_logger().addHandler(handler)
kwargs['initializer'] = lambda: signal.signal(signal.SIGINT, signal.
SIG_IGN)
NativePool.__init__(self, *args, **kwargs)
self.results = []
self.prev_message = None
def __init__(self, *args, **kwds):
Pool.__init__(self, *args, **kwds)
self.results = []
self.int_results = []
def __init__(self, *args, **kwds):
Pool.__init__(self, *args, **kwds)
self.results = []
self.int_results = []
def __init__(self, *args, **kwargs):
self.Process = CAProcess
Pool.__init__(self, *args, **kwargs)
def __init__(self, processes):
Pool.__init__(self, processes, ignoreSigInt)
def __init__(self, process_num):
Pool.__init__(self, process_num)
self.process_num = process_num
def __init__( self, processes ):
Pool.__init__( self, processes, ignoreSigInt )
def __init__(self, processes=None):
"""
MyPoolwithPipe的构造函数
:param processes: 最大进程数
"""
BasePool.__init__(self, processes)
def __init__(self, processes=None, initializer=None, initargs=()):
Pool.__init__(self, processes, initializer, initargs)
self._taskqueue.maxsize = self._processes
self._inqueue.maxsize = self._processes
self._outqueue.maxsize = self._processes
def __init__(self, processes=None, initializer=None, initargs=()):
Pool.__init__(self, processes, initializer, initargs)
self._taskqueue.maxsize = self._processes
self._inqueue.maxsize = self._processes
self._outqueue.maxsize = self._processes
def __init__(self, *args, **kwargs):
self.Process = CAProcess
Pool.__init__(self, *args, **kwargs)
def __init__(self, processes=None, initializer=None, initargs=()):
if max_top_workers:
processes = int(max_top_workers)
Pool.__init__(self, processes, initializer, initargs)