/usr/share/pyshared/deap/dtm/manager.py is in python-deap 0.7.1-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 | # This file is part of DEAP.
#
# DEAP is free software: you can redistribute it and/or modify
# it under the terms of the GNU Lesser General Public License as
# published by the Free Software Foundation, either version 3 of
# the License, or (at your option) any later version.
#
# DEAP is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with DEAP. If not, see <http://www.gnu.org/licenses/>.
import threading
import time
import math
import random
try:
import Queue
except ImportError:
import queue as Queue
import copy
import pickle
import logging
import sys
import os
PRETTY_PRINT_SUPPORT = False
try:
from lxml import etree
PRETTY_PRINT_SUPPORT = True
except ImportError:
try:
import xml.etree.cElementTree as etree
except ImportError:
# Python 2.5
import xml.etree.ElementTree as etree
from deap.dtm.dtmTypes import *
logging.basicConfig(level=logging.DEBUG, stream=sys.stdout)
_logger = logging.getLogger("dtm.control")
# Constantes
DTM_CONTROL_THREAD_LATENCY = 0.05
MSG_COMM_TYPE = 0
MSG_SENDER_INFO = 1
MSG_NODES_INFOS = 2
DTM_LOGDIR_DEFAULT_NAME = "DtmLog"
try:
from math import erf
except ImportError:
def erf(x):
# See http://stackoverflow.com/questions/457408/is-there-an-easily-available-implementation-of-erf-for-python
# save the sign of x
sign = 1
if x < 0:
sign = -1
x = abs(x)
# constants
a1 = 0.254829592
a2 = -0.284496736
a3 = 1.421413741
a4 = -1.453152027
a5 = 1.061405429
p = 0.3275911
# A&S formula 7.1.26
t = 1.0 / (1.0 + p * x)
y = 1.0 - (((((a5 * t + a4) * t) + a3) * t + a2) * t + a1) * t * math.exp(-x * x)
return sign * y # erf(-x) = -erf(x)
class TaskIdGenerator(object):
"""
A thread-safe ID generator.
A DTM task ID is a tuple looking like (workerId, uniqId)
With MPI, workerId is an integer (rank) and the uniqIds start from 0,
but workerId can be virtually any immutable object (as it is used as
a dictionnary key)
"""
def __init__(self, rank, initId=0):
self.r = rank
self.wtid = 0
self.generatorLock = threading.Lock()
@property
def tid(self):
self.generatorLock.acquire()
newId = self.wtid
self.wtid += 1
self.generatorLock.release()
return (self.r, newId)
class ExecInfo(object):
"""
Contains the information about the current task
"""
def __init__(self, tStats, tStatsLock):
self.eLock = threading.Lock()
self.tStats = tStats
self.tStatsLock = tStatsLock
self.eCurrent = None
self.mainThread = threading.currentThread()
self.piSqrt = math.sqrt(math.pi)
self.sqrt2 = 2 ** 0.5
def _execTimeRemaining(self, mean, stdDev, alreadyDone):
if alreadyDone == 0.:
# If not started yet, return mean
return mean
#
# Else compute the mass center of the remaining part of the gaussian
# For instance, if we have a gaussian (mu, sigma) = (3, 4)
# and that the task is executing for 3 seconds, then we may estimate
# that it will probably finished at :
# int(x*gaussian) / int(gaussian) over [3, +inf[
# (where int is integral)
#
# We get 6.192 seconds, that is an expected remaining time of
# 6.192 - 3 = 3.192 seconds
# Evaluate primitive at point 'alreadyDone'
commonPart = erf(self.sqrt2 * (alreadyDone - mean) / (stdDev * 2))
areaPart1 = 0.5 * commonPart
massCenterPart1 = (self.sqrt2 / (4 * self.piSqrt)) * (-2 * stdDev * math.exp(-0.5 * ((alreadyDone - mean) ** 2) / (stdDev ** 2)) + mean * (self.piSqrt) * (self.sqrt2) * commonPart)
# Evaluate primitive at the infinite
# erf(+inf) = 1, so
areaPart2 = 0.5
# exp(-inf) = 0, and erf(+inf) = 1, so
massCenterPart2 = mean / 2.
if areaPart1 == areaPart2:
# So far from the mean that erf(alreadyDone - moyenne) = 1
previsionPoint = alreadyDone + 0.5 # Hack : lets assume that there's 0.5 sec left...
else:
previsionPoint = (massCenterPart2 - massCenterPart1) / (areaPart2 - areaPart1)
return previsionPoint - alreadyDone
def acquire(self, forTask, blocking=True):
if self.eLock.acquire(blocking):
self.eCurrent = forTask
return True
else:
return False
def isLocked(self):
if self.eLock.acquire(False):
self.eLock.release()
return False
return True
def release(self):
self.eCurrent = None
self.eLock.release()
def getLoad(self):
try:
self.tStatsLock.acquire()
tInfo = self.tStats.get(self.eCurrent.target, StatsContainer(rAvg=1., rStdDev=1., rSquareSum=0., execCount=0))
val = self._execTimeRemaining(tInfo.rAvg, tInfo.rStdDev, self.eCurrent.threadObject.timeExec)
self.tStatsLock.release()
return val
except AttributeError:
self.tStatsLock.release()
return 0.
class TaskQueue(object):
"""
"""
def __init__(self, tasksStatsStruct, tasksStatsLock):
self.tStats = tasksStatsStruct
self.tStatsLock = tasksStatsLock
self.previousLoad = 0.
self.piSqrt = math.sqrt(math.pi)
self.sqrt2 = 2 ** 0.5
self._tQueue = Queue.PriorityQueue()
self._tDict = {}
self._actionLock = threading.Lock()
self.changed = True
def _getTimeInfoAbout(self, task):
if task.threadObject is None:
timeDone = 0.
else:
timeDone = task.threadObject.timeExec
self.tStatsLock.acquire()
tInfo = self.tStats.get(task.target, StatsContainer(rAvg=1., rStdDev=1., rSquareSum=0., execCount=0))
self.tStatsLock.release()
return self._execTimeRemaining(tInfo.rAvg, tInfo.rStdDev, timeDone)
def _execTimeRemaining(self, mean, stdDev, alreadyDone):
if alreadyDone == 0. or stdDev == 0:
return mean
#
# Else compute the mass center of the remaining part of the gaussian
# For instance, if we have a gaussian (mu, sigma) = (3, 4)
# and that the task is executing for 3 seconds, then we may estimate
# that it will probably finished at :
# int(x*gaussian) / int(gaussian) over [3, +inf[
# (where int is integral)
#
# We get 6.192 seconds, that is an expected remaining time of
# 6.192 - 3 = 3.192 seconds
# Evaluate primitive at point 'alreadyDone'
commonPart = erf(self.sqrt2 * (alreadyDone - mean) / (stdDev * 2))
areaPart1 = 0.5 * commonPart
massCenterPart1 = (self.sqrt2 / (4 * self.piSqrt)) * (-2 * stdDev * math.exp(-0.5 * ((alreadyDone - mean) ** 2) / (stdDev ** 2)) + mean * (self.piSqrt) * (self.sqrt2) * commonPart)
# Evaluate primitive at the infinite
# erf(+inf) = 1, so
areaPart2 = 0.5
# exp(-inf) = 0, and erf(+inf) = 1, so
massCenterPart2 = mean / 2.
if areaPart1 == areaPart2:
# So far from the mean that erf(alreadyDone - moyenne) = 1
previsionPoint = alreadyDone + 0.5 # Hack : lets assume that there's 0.5 sec left...
else:
previsionPoint = (massCenterPart2 - massCenterPart1) / (areaPart2 - areaPart1)
return previsionPoint - alreadyDone
def put(self, taskObject):
self.putList((taskObject,))
def putList(self, tasksList):
self._actionLock.acquire()
for taskObject in tasksList:
self._tDict[taskObject.tid] = taskObject
self._tQueue.put(taskObject)
self.changed = True
self._actionLock.release()
def getTask(self):
self._actionLock.acquire()
while True:
try:
taskObject = self._tQueue.get_nowait()
except Queue.Empty:
self._actionLock.release()
raise Queue.Empty
if taskObject.tid in self._tDict:
del self._tDict[taskObject.tid]
self.changed = True
self._actionLock.release()
return taskObject
def isTaskIn(self, taskId):
return taskId in self._tDict
def _getApproximateLoad(self):
return self.previousLoad
def getLen(self):
return len(self._tDict)
def getLoad(self):
tmpLoad = 0.
self._actionLock.acquire()
if not self.changed:
self._actionLock.release()
return self.previousLoad
for tid, tObj in self._tDict.items():
tmpLoad += self._getTimeInfoAbout(tObj)
self.previousLoad = tmpLoad
self.changed = False
self._actionLock.release()
return self.previousLoad
def getSpecificTask(self, taskId):
self._actionLock.acquire()
if taskId in self._tDict:
task = self._tDict[taskId]
del self._tDict[taskId]
self.changed = True
else:
task = None
self._actionLock.release()
return task
def getTaskByExecTime(self, execTimeWanted, maxDiff= -1.):
# maxDiff is the max difference wanted
# If there is no task with the execTimeWanted +- maxDiff,
# return None
# maxDiff = -1 means that there is no max difference
mostClose = None
self._actionLock.acquire()
for tid, tObj in self._tDict.items():
timeDiff = math.abs(execTimeWanted - self._getTimeInfoAbout(tObj))
if mostClose is None or mostClose[1] > timeDiff:
mostClose = (tid, timeDiff)
self._actionLock.release()
if mostClose is None or (maxDiff >= 0 and mostClose[1] > maxDiff):
return None
else:
return self.getSpecificTask(mostClose[0])
def getTasksIDsWithExecTime(self, execTimeWanted, maxDiff= -1.):
# Return task list containing tasks which the durations approximately
# sum to execTimeWanted
returnList = []
totalTime = 0.
self._actionLock.acquire()
for tid, tObj in self._tDict.items():
timeInfo = self._getTimeInfoAbout(tObj)
if totalTime + timeInfo <= execTimeWanted:
returnList.append(tid)
totalTime += timeInfo
#
# Hack to avoid the starting bug (few jobs but very long)
#
if len(returnList) == 0 and maxDiff == -1 and len(self._tDict) > 1:
it = list(filter(lambda x: self._getTimeInfoAbout(x[1]) != 0, self._tDict.items()))
if len(it) != 0:
returnList.append(it[0][0])
totalTime += self._getTimeInfoAbout(it[0][1])
self._actionLock.release()
return returnList, totalTime
class Control(object):
"""
Control is the main DTM class. The dtm object you receive when you use ``from deap import dtm``
is a proxy over an instance of this class.
Most of its methods are used by your program, in the execution tasks; however, two of thems (start() and setOptions()) MUST be called
in the MainThread (i.e. the thread started by the Python interpreter).
As this class is instancied directly in the module, initializer takes no arguments.
"""
def __init__(self):
self.sTime = time.time()
# Key : Target, Value : StatsContainer
self.tasksStats = {}
self.tasksStatsLock = threading.Lock()
# Global execution lock
self.dtmExecLock = ExecInfo(self.tasksStats, self.tasksStatsLock)
self.waitingThreadsQueue = TaskQueue(self.tasksStats, self.tasksStatsLock)
# Key : task ID, Value : WaitInfoContainer
self.waitingThreads = {}
self.waitingThreadsLock = threading.Lock()
self.launchTaskLock = threading.Lock()
self.waitingForRestartQueue = TaskQueue(self.tasksStats, self.tasksStatsLock)
self.execQueue = TaskQueue(self.tasksStats, self.tasksStatsLock)
self.recvQueue = Queue.Queue() # Contains MessageContainer
self.sendQueue = Queue.Queue() # Contains MessageContainer
self.exitStatus = threading.Event()
self.commExitNotification = threading.Event()
self.commReadyEvent = threading.Event()
self.exitState = (None, None)
self.exitSetHere = False
# Will stop the main thread until an event occurs
self.runningFlag = threading.Event()
self.runningFlag.set()
self.commManagerType = "deap.dtm.commManagerMpi4py"
self.loadBalancerType = "deap.dtm.loadBalancerPDB"
self.printExecSummary = True
self.isStarted = False
self.traceMode = False
self.traceRoot = None # Root element of the XML log
self.traceTasks = None # XML elements
self.traceComm = None # defined if traceMode == True
self.traceLoadB = None
self.traceLock = threading.Lock()
self.refTime = 1.
self.loadBalancer = None
self.lastRetValue = None
self.dtmRandom = random.Random()
def _doCleanUp(self):
"""
Clean up function, called at this end of the execution.
Should NOT be called by the user.
"""
#if self.printExecSummary:
#_logger.info("[%s] did %i tasks", str(self.workerId), self._DEBUG_COUNT_EXEC_TASKS)
if self.exitSetHere:
for n in self.commThread.iterOverIDs():
if n == self.workerId:
continue
self.sendQueue.put(MessageContainer(msgType = DTM_MSG_EXIT,
senderWid = self.workerId,
receiverWid = n,
loadsDict = None,
targetsStats = None,
prepTime = time.time(),
sendTime = 0,
ackNbr = -1,
msg = (0, "Exit with success")))
self.commExitNotification.set()
self.commThread.join()
del self.execQueue
del self.sendQueue
del self.recvQueue
countThreads = sum([1 for th in threading.enumerate() if not th.daemon])
if countThreads > 1:
_logger.warning("[%s] There's more than 1 active thread (%i) at the exit.", str(self.workerId), threading.activeCount())
if self.commThread.isRootWorker:
if self.printExecSummary:
msgT = " Tasks execution times summary :\n"
for target, times in self.tasksStats.items():
msgT += "\t" + str(target) + " : Avg=" + str(times.rAvg * self.refTime) + ", StdDev=" + str(times.rStdDev * self.refTime) + "\n\n"
_logger.info(msgT)
_logger.info("DTM execution ended (no more tasks)")
_logger.info("Total execution time : %s", str(time.time() - self.sTime))
if self.traceMode:
_logger.info("Writing log to the log files...")
self.traceLock.acquire()
fstat = etree.SubElement(self.traceRoot, "finalStats")
for target, times in self.tasksStats.items():
etree.SubElement(fstat, "taskinfo", {"target" : str(target), "avg" : repr(times.rAvg * self.refTime), "stddev" : repr(times.rStdDev * self.refTime), "execcount" : str(times.execCount)})
flog = open(DTM_LOGDIR_DEFAULT_NAME + "/log" + str(self.workerId) + ".xml", 'w')
if PRETTY_PRINT_SUPPORT:
flog.write(etree.tostring(self.traceRoot, pretty_print=True))
else:
flog.write(etree.tostring(self.traceRoot))
flog.close()
self.traceLock.release()
if self.exitSetHere:
if self.lastRetValue[0]:
return self.lastRetValue[1]
else:
raise self.lastRetValue[1]
def _addTaskStat(self, taskKey, timeExec):
# The execution time is based on the calibration ref time
comparableLoad = timeExec / self.refTime
# We do not keep up all the execution times, but
# update the mean and stddev realtime
self.tasksStatsLock.acquire()
if not taskKey in self.tasksStats:
self.tasksStats[taskKey] = StatsContainer(rAvg = timeExec,
rStdDev = 0.,
rSquareSum = timeExec * timeExec,
execCount = 1)
else:
oldAvg = self.tasksStats[taskKey].rAvg
oldStdDev = self.tasksStats[taskKey].rStdDev
oldSum2 = self.tasksStats[taskKey].rSquareSum
oldExecCount = self.tasksStats[taskKey].execCount
self.tasksStats[taskKey].rAvg = (timeExec + oldAvg * oldExecCount) / (oldExecCount + 1)
self.tasksStats[taskKey].rSquareSum = oldSum2 + timeExec * timeExec
self.tasksStats[taskKey].rStdDev = abs(self.tasksStats[taskKey].rSquareSum / (oldExecCount + 1) - self.tasksStats[taskKey].rAvg ** 2) ** 0.5
self.tasksStats[taskKey].execCount = oldExecCount + 1
self.tasksStatsLock.release()
def _calibrateExecTime(self, runsN=3):
"""
Small calibration test, run at startup
Should not be called by user
"""
timesList = []
for r in range(runsN):
timeS = time.clock()
a = 0.
for i in range(10000):
a = math.sqrt(self.dtmRandom.random() / (self.dtmRandom.uniform(0, i) + 1))
strT = ""
for i in range(5000):
strT += str(self.dtmRandom.randint(0, 9999))
for i in range(500):
pickStr = pickle.dumps(strT)
strT = pickle.loads(pickStr)
timesList.append(time.clock() - timeS)
return sorted(timesList)[int(runsN / 2)]
def _getLoadTuple(self):
return (self.dtmExecLock.getLoad(), self.execQueue.getLoad(), self.waitingForRestartQueue.getLoad(), self.waitingThreadsQueue.getLoad())
def _returnResult(self, idToReturn, resultInfo):
"""
Called by the execution threads when they have to return a result
Should NOT be called explicitly by the user
"""
if idToReturn == self.workerId:
self._dispatchResults((resultInfo,))
else:
self.sendQueue.put(MessageContainer(msgType = DTM_MSG_RESULT,
senderWid = self.workerId,
receiverWid = idToReturn,
loadsDict = self.loadBalancer.getNodesDict(),
targetsStats = self.tasksStats,
prepTime = time.time(),
sendTime = 0,
ackNbr = -1,
msg = (resultInfo,)))
def _updateStats(self, msg):
"""
Called by the control thread to update its dictionnary
Should NOT be called explicitly by the user
"""
self.loadBalancer.mergeNodeStatus(msg.loadsDict)
self.tasksStatsLock.acquire()
for key, val in msg.targetsStats.items():
if not key in self.tasksStats or val.execCount > self.tasksStats[key].execCount:
self.tasksStats[key] = val
self.tasksStatsLock.release()
def _dispatchResults(self, resultsList):
"""
Called by the control thread when a message is received;
Dispatch it to the task waiting for it.
Should NOT be called explicitly by the user
"""
for result in resultsList:
self.waitingThreadsLock.acquire()
# We look for the task waiting for each result
foundKey = None
for taskKey in self.waitingThreads[result.parentTid].rWaitingDict:
try:
self.waitingThreads[result.parentTid].rWaitingDict[taskKey].tids.remove(result.tid)
except ValueError:
# The ID is not in this waiting list, continue with other worker
continue
foundKey = taskKey
if isinstance(self.waitingThreads[result.parentTid].rWaitingDict[taskKey].result, list):
if not result.success:
# Exception occured
self.waitingThreads[result.parentTid].rWaitingDict[taskKey].result = result.result
else:
self.waitingThreads[result.parentTid].rWaitingDict[taskKey].result[result.taskIndex] = result.result
break
assert not foundKey is None, "Parent task not found for result dispatch!" # Debug
if len(self.waitingThreads[result.parentTid].rWaitingDict[foundKey].tids) == 0:
# All tasks done
self.waitingThreads[result.parentTid].rWaitingDict[foundKey].finished = True
if isinstance(self.waitingThreads[result.parentTid].rWaitingDict[foundKey].result, list):
self.waitingThreads[result.parentTid].rWaitingDict[foundKey].success = True
canRestart = False
if self.waitingThreads[result.parentTid].rWaitingDict[foundKey].waitingOn == True or self.waitingThreads[result.parentTid].waitingMode == DTM_WAIT_ALL:
if (self.waitingThreads[result.parentTid].waitingMode == DTM_WAIT_ALL and len(self.waitingThreads[result.parentTid].rWaitingDict) == 1)\
or self.waitingThreads[result.parentTid].waitingMode == DTM_WAIT_ANY:
canRestart = True
elif self.waitingThreads[result.parentTid].waitingMode == DTM_WAIT_SOME:
canRestart = True
for rKey in self.waitingThreads[result.parentTid].rWaitingDict:
if self.waitingThreads[result.parentTid].rWaitingDict[rKey].waitingOn and rKey != foundKey:
canRestart = False
if not self.waitingThreads[result.parentTid].rWaitingDict[taskKey].callbackFunc is None:
self.waitingThreads[result.parentTid].rWaitingDict[taskKey].callbackFunc()
if canRestart:
wTask = self.waitingThreadsQueue.getSpecificTask(result.parentTid)
assert not wTask is None
self.waitingForRestartQueue.put(wTask)
self.waitingThreadsLock.release()
def _startNewTask(self):
"""
Start a new task (if there's one available)
Return True if so
Should NOT be called explicitly by the user
"""
taskLauched = False
self.launchTaskLock.acquire()
if not self.dtmExecLock.isLocked():
try:
wTask = self.waitingForRestartQueue.getTask()
self.dtmExecLock.acquire(wTask)
wTask.threadObject.waitingFlag.set()
taskLauched = True
except Queue.Empty:
pass
if not taskLauched:
try:
newTask = self.execQueue.getTask()
if self.traceMode:
self.traceLock.acquire()
newTaskElem = etree.SubElement(self.traceTasks, "task",
{"id" : str(newTask.tid),
"creatorTid" : str(newTask.creatorTid),
"creatorWid" : str(newTask.creatorWid),
"taskIndex" : str(newTask.taskIndex),
"creationTime" : repr(newTask.creationTime)})
try:
newTaskTarget = etree.SubElement(newTaskElem, "target",
{"name" : str(newTask.target.__name__)})
except AttributeError:
newTaskTarget = etree.SubElement(newTaskElem, "target",
{"name" : str(newTask.target)})
for i, a in enumerate(newTask.args):
newTaskTarget.set("arg" + str(i), str(a))
for k in newTask.kwargs:
newTaskTarget.set("kwarg_" + str(k), str(newTask.kwargs[k]))
newTaskPath = etree.SubElement(newTaskElem, "path", {"data" : str(newTask.taskRoute)})
self.traceLock.release()
newThread = DtmThread(newTask, self, newTaskElem)
else:
newThread = DtmThread(newTask, self)
self.dtmExecLock.acquire(newTask)
newThread.start()
taskLauched = True
except Queue.Empty:
pass
self.launchTaskLock.release()
return taskLauched
def _main(self):
"""
Main loop of the control thread
Should NOT be called explicitly by the user
"""
timeBegin = time.time()
while True:
self.runningFlag.wait() # WARNING, may deadlock on very specific conditions
self.runningFlag.clear() # (if the _last_ task do a set() between those 2 lines, nothing will wake up the main thread)
while True:
try:
recvMsg = self.recvQueue.get_nowait()
if recvMsg.msgType == DTM_MSG_EXIT:
self.exitStatus.set()
self.exitState = (recvMsg.msg[1], recvMsg.msg[0])
break
elif recvMsg.msgType == DTM_MSG_TASK:
self.execQueue.putList(recvMsg.msg)
self.loadBalancer.updateSelfStatus(self._getLoadTuple())
self.sendQueue.put(MessageContainer(msgType = DTM_MSG_ACK_RECEIVED_TASK,
senderWid = self.workerId,
receiverWid = recvMsg.senderWid,
loadsDict = self.loadBalancer.getNodesDict(),
targetsStats = self.tasksStats,
prepTime = time.time(),
sendTime = 0,
ackNbr = -1,
msg = recvMsg.ackNbr))
self._updateStats(recvMsg)
elif recvMsg.msgType == DTM_MSG_RESULT:
self._dispatchResults(recvMsg.msg)
self._updateStats(recvMsg)
elif recvMsg.msgType == DTM_MSG_REQUEST_TASK:
self._updateStats(recvMsg)
elif recvMsg.msgType == DTM_MSG_ACK_RECEIVED_TASK:
self.loadBalancer.acked(recvMsg.senderWid, recvMsg.msg)
self._updateStats(recvMsg)
else:
_logger.warning("[%s] Unknown message type %s received will be ignored.", str(self.workerId), str(recvMsg.msgType))
except Queue.Empty:
break
if self.exitStatus.is_set():
break
currentNodeStatus = self._getLoadTuple()
self.loadBalancer.updateSelfStatus(currentNodeStatus)
sendUpdateList, sendTasksList = self.loadBalancer.takeDecision()
self.tasksStatsLock.acquire()
for sendInfo in sendTasksList:
self.sendQueue.put(MessageContainer(msgType = DTM_MSG_TASK,
senderWid = self.workerId,
receiverWid = sendInfo[0],
loadsDict = self.loadBalancer.getNodesDict(),
targetsStats = self.tasksStats,
prepTime = time.time(),
sendTime = 0,
ackNbr = sendInfo[2],
msg = sendInfo[1]))
for updateTo in sendUpdateList:
self.sendQueue.put(DtmMessageContainer(msgType = DTM_MSG_REQUEST_TASK,
senderWid = self.workerId,
receiverWid = updateTo,
loadsDict = self.loadBalancer.getNodesDict(),
targetsStats = self.tasksStats,
prepTime = time.time(),
sendTime = 0,
ackNbr = -1,
msg = None))
self.tasksStatsLock.release()
self._startNewTask()
return self._doCleanUp()
def setOptions(self, *args, **kwargs):
"""
Set a DTM global option.
.. warning::
This function must be called BEFORE ``start()``. It is also the user responsability to ensure that the same option is set on every worker.
Currently, the supported options are :
* **communicationManager** : can be *deap.dtm.mpi4py* (default) or *deap.dtm.commManagerTCP*.
* **loadBalancer** : currently only the default *PDB* is available.
* **printSummary** : if set, DTM will print a task execution summary at the end (mean execution time of each tasks, how many tasks did each worker do, ...)
* **setTraceMode** : if set, will enable a special DTM tracemode. In this mode, DTM logs all its activity in XML files (one by worker). Mainly for DTM debug purpose, but can also be used for profiling.
This function can be called more than once. Any unknown parameter will have no effect.
"""
if self.isStarted:
if self.commThread.isRootWorker:
_logger.warning("dtm.setOptions() was called after dtm.start(); options will not be considered")
return
for opt in kwargs:
if opt == "communicationManager":
self.commManagerType = kwargs[opt]
elif opt == "loadBalancer":
self.loadBalancerType = kwargs[opt]
elif opt == "printSummary":
self.printExecSummary = kwargs[opt]
elif opt == "setTraceMode":
self.traceMode = kwargs[opt]
elif self.commThread.isRootWorker:
_logger.warning("Unknown option '%s'", opt)
def start(self, initialTarget, *args, **kwargs):
"""
Start the execution with the target `initialTarget`.
Calling this function create and launch the first task on the root worker
(defined by the communication manager, for instance, with MPI, the root worker is the worker with rank 0.).
.. warning::
This function must be called only ONCE, and after the target has been parsed by the Python interpreter.
"""
self.isStarted = True
try:
tmpImport = __import__(self.commManagerType, globals(), locals(), ['CommThread'], 0)
if not hasattr(tmpImport, 'CommThread'):
raise ImportError
CommThread = tmpImport.CommThread
except ImportError:
_logger.warning("Warning : %s is not a suitable communication manager. Default to commManagerMpi4py.", self.commManagerType)
tmpImport = __import__('deap.dtm.commManagerMpi4py', globals(), locals(), ['CommThread'], 0)
CommThread = tmpImport.CommThread
try:
tmpImport = __import__(self.loadBalancerType, globals(), locals(), ['LoadBalancer'], 0)
if not hasattr(tmpImport, 'LoadBalancer'):
raise ImportError
LoadBalancer = tmpImport.LoadBalancer
except ImportError:
_logger.warning("Warning : %s is not a suitable load balancer. Default to loadBalancerPDB.", self.loadBalancerType)
tmpImport = __import__('deap.dtm.loadBalancerPDB', globals(), locals(), ['LoadBalancer'], 0)
LoadBalancer = tmpImport.LoadBalancer
self.commThread = CommThread(self.recvQueue, self.sendQueue, self.runningFlag, self.commExitNotification, self.commReadyEvent, self.dtmRandom, sys.argv)
self.commThread.start()
self.refTime = self._calibrateExecTime()
self.commReadyEvent.wait()
if self.commThread.isLaunchProcess:
sys.exit()
self.poolSize = self.commThread.poolSize
self.workerId = self.commThread.workerId
self.idGenerator = TaskIdGenerator(self.workerId)
self.loadBalancer = LoadBalancer(self.commThread.iterOverIDs(), self.workerId, self.execQueue, self.dtmRandom)
if self.traceMode:
self.traceLock.acquire()
self.traceRoot = etree.Element("dtm", {"version" : str(0.7), "workerId" : str(self.workerId), "timeBegin" : repr(self.sTime)})
self.traceTasks = etree.SubElement(self.traceRoot, "tasksLog")
self.traceComm = etree.SubElement(self.traceRoot, "commLog")
self.traceLoadB = etree.SubElement(self.traceRoot, "loadBalancerLog")
self.traceLock.release()
self.commThread.setTraceModeOn(self.traceComm)
self.loadBalancer.setTraceModeOn(self.traceLoadB)
if self.commThread.isRootWorker:
if self.traceMode:
# Create the log folder
try:
os.mkdir(DTM_LOGDIR_DEFAULT_NAME)
except OSError:
_logger.warning("Log folder '" + DTM_LOGDIR_DEFAULT_NAME + "' already exists!")
_logger.info("DTM started with %i workers", self.poolSize)
_logger.info("DTM load balancer is %s, and communication manager is %s", self.loadBalancerType, self.commManagerType)
initTask = TaskContainer(tid = self.idGenerator.tid,
creatorWid = self.workerId,
creatorTid = None,
taskIndex = 0,
taskRoute = [self.workerId],
creationTime = time.time(),
target = initialTarget,
args = args,
kwargs = kwargs,
threadObject = None,
taskState = DTM_TASK_STATE_IDLE)
self.execQueue.put(initTask)
return self._main()
# The following methods are NOT called by the control thread, but by the EXECUTION THREADS
# All the non-local objects used MUST be thread-safe
def map(self, function, *iterables, **kwargs):
"""
A parallel equivalent of the :func:`map` built-in function. It blocks till the result is ready.
This method chops the iterables into a number of chunks determined by DTM in order to get the most efficient use of the workers.
It takes any number of iterables (though it will shrink all of them to the len of the smallest one), and any others kwargs that will be
transmitted as is to the *function* target.
"""
cThread = threading.currentThread()
currentId = cThread.tid
zipIterable = list(zip(*iterables))
listResults = [None] * len(zipIterable)
listTasks = []
listTids = []
for index, elem in enumerate(zipIterable):
task = TaskContainer(tid = self.idGenerator.tid,
creatorWid = self.workerId,
creatorTid = currentId,
taskIndex = index,
taskRoute = [self.workerId],
creationTime = time.time(),
target = function,
args = elem,
kwargs = kwargs,
threadObject = None,
taskState = DTM_TASK_STATE_IDLE)
listTasks.append(task)
listTids.append(task.tid)
if self.traceMode:
self.traceLock.acquire()
newTaskElem = etree.SubElement(cThread.xmlTrace, "event",
{"type" : "map",
"time" : repr(time.time()),
"target" : str(function.__name__),
"childTasks" : str(listTids)})
self.traceLock.release()
self.waitingThreadsLock.acquire()
if currentId not in self.waitingThreads.keys():
self.waitingThreads[currentId] = WaitInfoContainer(threadObject = cThread,
eventObject = cThread.waitingFlag,
waitBeginningTime = 0,
tasksWaitingCount = 0,
waitingMode = DTM_WAIT_NONE,
rWaitingDict = {})
resultKey = listTids[0]
self.waitingThreads[currentId].rWaitingDict[resultKey] = ExceptedResultContainer(tids = listTids,
waitingOn = True,
finished = False,
success = False,
callbackFunc = None,
result = listResults)
self.waitingThreads[currentId].tasksWaitingCount += len(listTasks)
self.waitingThreads[currentId].waitingMode = DTM_WAIT_SOME
self.waitingThreadsQueue.put(cThread.taskInfo)
self.waitingThreads[currentId].waitBeginningTime = time.time()
self.waitingThreadsLock.release()
self.execQueue.putList(listTasks)
cThread.waitForResult()
self.waitingThreadsLock.acquire()
ret = self.waitingThreads[currentId].rWaitingDict[resultKey].result
if self.waitingThreads[currentId].rWaitingDict[resultKey].success == False:
# Exception occured
del self.waitingThreads[currentId].rWaitingDict[resultKey]
self.waitingThreadsLock.release()
raise ret
else:
del self.waitingThreads[currentId].rWaitingDict[resultKey]
self.waitingThreadsLock.release()
return ret
def map_async(self, function, iterable, callback=None):
"""
A non-blocking variant of the :func:`~deap.dtm.taskmanager.Control.map` method which returns a :class:`~deap.dtm.taskmanager.AsyncResult` object.
.. note::
As on version 0.2, callback is not implemented.
"""
cThread = threading.currentThread()
currentId = cThread.tid
listResults = [None] * len(iterable)
listTasks = []
listTids = []
for index, elem in enumerate(iterable):
task = TaskContainer(tid = self.idGenerator.tid,
creatorWid = self.workerId,
creatorTid = currentId,
taskIndex = index,
taskRoute = [self.workerId],
creationTime = time.time(),
target = function,
args = (elem,),
kwargs = {},
threadObject = None,
taskState = DTM_TASK_STATE_IDLE)
listTasks.append(task)
listTids.append(task.tid)
resultKey = listTids[0]
if self.traceMode:
newTaskElem = etree.SubElement(cThread.xmlTrace, "event",
{"type" : "map_async",
"time" : repr(time.time()),
"target" : str(function.__name__),
"childTasks" : str(listTids)})
self.waitingThreadsLock.acquire()
if currentId not in self.waitingThreads.keys():
self.waitingThreads[currentId] = WaitInfoContainer(threadObject = cThread,
eventObject = cThread.waitingFlag,
waitBeginningTime = 0,
tasksWaitingCount = 0,
waitingMode = DTM_WAIT_NONE,
rWaitingDict = {})
self.waitingThreads[currentId].rWaitingDict[resultKey] = ExceptedResultContainer(tids = listTids,
waitingOn = False,
finished = False,
success = False,
callbackFunc = None,
result = listResults)
self.waitingThreads[currentId].waitingMode = DTM_WAIT_NONE
asyncRequest = AsyncResult(self, self.waitingThreads[currentId], resultKey)
self.waitingThreads[currentId].rWaitingDict[resultKey].callbackFunc = asyncRequest._dtmCallback
self.waitingThreadsLock.release()
self.execQueue.putList(listTasks)
self.runningFlag.set()
return asyncRequest
def apply(self, function, *args, **kwargs):
"""
Equivalent of the :func:`apply` built-in function. It blocks till the result is ready.
Given this blocks, :func:`~deap.dtm.taskmanager.Control.apply_async()` is better suited for performing work in parallel.
Additionally, the passed in function is only executed in one of the workers of the pool.
"""
cThread = threading.currentThread()
currentId = cThread.tid
task = TaskContainer(tid = self.idGenerator.tid,
creatorWid = self.workerId,
creatorTid = currentId,
taskIndex = 0,
taskRoute = [self.workerId],
creationTime = time.time(),
target = function,
args = args,
kwargs = kwargs,
threadObject = None,
taskState = DTM_TASK_STATE_IDLE)
if self.traceMode:
newTaskElem = etree.SubElement(cThread.xmlTrace, "event",
{"type" : "apply",
"time" : repr(time.time()),
"target" : str(function.__name__),
"childTasks" : str([task.tid])})
self.waitingThreadsLock.acquire()
if currentId not in self.waitingThreads.keys():
self.waitingThreads[currentId] = WaitInfoContainer(threadObject = cThread,
eventObject = cThread.waitingFlag,
waitBeginningTime = 0,
tasksWaitingCount = 0,
waitingMode = DTM_WAIT_NONE,
rWaitingDict = {})
resultKey = task.tid
self.waitingThreads[currentId].rWaitingDict[resultKey] = ExceptedResultContainer(tids = [task.tid],
waitingOn = True,
finished = False,
success = False,
callbackFunc = None,
result = [None])
self.waitingThreads[currentId].tasksWaitingCount += 1
self.waitingThreads[currentId].waitingMode = DTM_WAIT_SOME
self.waitingThreadsQueue.put(cThread.taskInfo)
self.waitingThreads[currentId].waitBeginningTime = time.time()
self.waitingThreadsLock.release()
self.execQueue.put(task)
cThread.waitForResult()
self.waitingThreadsLock.acquire()
ret = self.waitingThreads[currentId].rWaitingDict[resultKey].result
if self.waitingThreads[currentId].rWaitingDict[resultKey].success == False:
# Exception occured
del self.waitingThreads[currentId].rWaitingDict[resultKey]
self.waitingThreadsLock.release()
raise ret
else:
del self.waitingThreads[currentId].rWaitingDict[resultKey]
self.waitingThreadsLock.release()
return ret[0]
def apply_async(self, function, *args, **kwargs):
"""
A non-blocking variant of the :func:`~deap.dtm.taskmanager.Control.apply` method which returns a :class:`~deap.dtm.taskmanager.AsyncResult` object.
"""
cThread = threading.currentThread()
currentId = cThread.tid
task = TaskContainer(tid = self.idGenerator.tid,
creatorWid = self.workerId,
creatorTid = currentId,
taskIndex = 0,
taskRoute = [self.workerId],
creationTime = time.time(),
target = function,
args = args,
kwargs = kwargs,
threadObject = None,
taskState = DTM_TASK_STATE_IDLE)
if self.traceMode:
newTaskElem = etree.SubElement(cThread.xmlTrace, "event",
{"type" : "apply_async",
"time" : repr(time.time()),
"target" : str(function.__name__),
"childTasks" : str([task.tid])})
self.waitingThreadsLock.acquire()
if currentId not in self.waitingThreads.keys():
self.waitingThreads[currentId] = WaitInfoContainer(threadObject = cThread,
eventObject = cThread.waitingFlag,
waitBeginningTime = 0,
tasksWaitingCount = 0,
waitingMode = DTM_WAIT_NONE,
rWaitingDict = {})
resultKey = task.tid
self.waitingThreads[currentId].rWaitingDict[resultKey] = ExceptedResultContainer(tids = [task.tid],
waitingOn = False,
finished = False,
success = False,
callbackFunc = None,
result = [None])
self.waitingThreads[currentId].waitingMode = DTM_WAIT_NONE
asyncRequest = AsyncResult(self, self.waitingThreads[currentId], resultKey)
self.waitingThreads[currentId].rWaitingDict[resultKey].callbackFunc = asyncRequest._dtmCallback
self.waitingThreadsLock.release()
self.execQueue.put(task)
self.runningFlag.set()
return asyncRequest
def imap(self, function, iterable, chunksize=1):
"""
An equivalent of :func:`itertools.imap`.
The chunksize argument can be used to tell DTM how many elements should be computed at the same time.
For very long iterables using a large value for chunksize can make make the job complete much faster than using the default value of 1.
"""
currentIndex = 0
while currentIndex < len(iterable):
maxIndex = currentIndex + chunksize if currentIndex + chunksize < len(iterable) else len(iterable)
asyncResults = [None] * (maxIndex - currentIndex)
for i in range(currentIndex, maxIndex):
asyncResults[i % chunksize] = self.apply_async(function, iterable[i])
for result in asyncResults:
ret = result.get()
yield ret
currentIndex = maxIndex
def imap_unordered(self, function, iterable, chunksize=1):
"""
Not implemented yet.
"""
raise NotImplementedError
def filter(self, function, iterable):
"""
Same behavior as the built-in :func:`filter`. The filtering is done localy, but the computation is distributed.
"""
results = self.map(function, iterable)
return [item for result, item in zip(results, iterable) if result]
def repeat(self, function, n, *args, **kwargs):
"""
Repeat the function *function* *n* times, with given args and keyworded args.
Return a list containing the results.
"""
cThread = threading.currentThread()
currentId = cThread.tid
listResults = [None] * n
listTasks = []
listTids = []
for index in range(n):
task = TaskContainer(tid = self.idGenerator.tid,
creatorWid = self.workerId,
creatorTid = currentId,
taskIndex = index,
taskRoute = [self.workerId],
creationTime = time.time(),
target = function,
args = args,
kwargs = kwargs,
threadObject = None,
taskState = DTM_TASK_STATE_IDLE)
listTasks.append(task)
listTids.append(task.tid)
self.waitingThreadsLock.acquire()
if currentId not in self.waitingThreads.keys():
self.waitingThreads[currentId] = WaitInfoContainer(threadObject = cThread,
eventObject = cThread.waitingFlag,
waitBeginningTime = 0,
tasksWaitingCount = 0,
waitingMode = DTM_WAIT_NONE,
rWaitingDict = {})
resultKey = listTids[0]
self.waitingThreads[currentId].rWaitingDict[resultKey] = ExceptedResultContainer(tids = listTids,
waitingOn = True,
finished = False,
success = False,
callbackFunc = None,
result = listResults)
self.waitingThreads[currentId].tasksWaitingCount += len(listTasks)
self.waitingThreads[currentId].waitingMode = DTM_WAIT_SOME
self.waitingThreadsQueue.put(cThread.taskInfo)
self.waitingThreads[currentId].waitBeginningTime = time.time()
self.waitingThreadsLock.release()
self.execQueue.putList(listTasks)
cThread.waitForResult()
self.waitingThreadsLock.acquire()
ret = self.waitingThreads[currentId].rWaitingDict[resultKey].result
if self.waitingThreads[currentId].rWaitingDict[resultKey].success == False:
# Exception occured
del self.waitingThreads[currentId].rWaitingDict[resultKey]
self.waitingThreadsLock.release()
raise ret
else:
del self.waitingThreads[currentId].rWaitingDict[resultKey]
self.waitingThreadsLock.release()
return ret
def waitForAll(self):
"""
Wait for all pending asynchronous results. When this function returns,
DTM guarantees that all ready() call on asynchronous tasks will
return true.
"""
threadId = threading.currentThread().tid
self.waitingThreadsLock.acquire()
if threadId in self.waitingThreads and len(self.waitingThreads[threadId].rWaitingDict) > 0:
self.waitingThreads[threadId].waitingMode = DTM_WAIT_ALL
self.waitingThreadsQueue.put(threading.currentThread().taskInfo)
self.waitingThreadsLock.release()
threading.currentThread().waitForResult()
self.waitingThreadsLock.acquire()
self.waitingThreads[threadId].waitingMode = DTM_WAIT_NONE
self.waitingThreadsLock.release()
else:
self.waitingThreadsLock.release()
return
return None
def testAllAsync(self):
"""
Check whether all pending asynchronous tasks are done.
It does not lock if it is not the case, but returns false.
"""
threadId = threading.currentThread().tid
self.waitingThreadsLock.acquire()
if threadId in self.waitingThreads:
ret = len(self.waitingThreads[threadId].rWaitingDict)
self.waitingThreadsLock.release()
return False
else:
self.waitingThreadsLock.release()
return True
def getWorkerId(self):
"""
Return a unique ID for the current worker. Depending of the
communication manager type, it can be virtually any Python
immutable type.
.. note::
With MPI, the value returned is the MPI slot number.
"""
return self.workerId
class DtmThread(threading.Thread):
"""
DTM execution threads. Those are one of the main parts of DTM.
They should not be created or called directly by the user.
"""
def __init__(self, structInfo, controlThread, xmlTrace=None):
threading.Thread.__init__(self)
self.taskInfo = structInfo # TaskContainer
self.taskInfo.threadObject = self # Remind that we are the exec thread
self.tid = structInfo.tid
self.t = structInfo.target
self.control = controlThread
self.waitingFlag = threading.Event()
self.waitingFlag.clear()
self.timeExec = 0
self.timeBegin = 0
if structInfo.creatorTid is None:
self.isRootTask = True
else:
self.isRootTask = False
self.xmlTrace = xmlTrace
def run(self):
# The lock is already acquired for us
self.taskInfo.taskState = DTM_TASK_STATE_RUNNING
success = True
self.timeBegin = time.time()
if not self.xmlTrace is None:
# Debug output in xml object
self.control.traceLock.acquire()
etree.SubElement(self.xmlTrace, "event", {"type" : "begin", "worker" : str(self.control.workerId), "time" : repr(self.timeBegin)})
self.control.traceLock.release()
try:
returnedR = self.t(*self.taskInfo.args, **self.taskInfo.kwargs)
except Exception as expc:
returnedR = expc
strWarn = "An exception of type " + str(type(expc)) + " occured on worker " + str(self.control.workerId) + " while processing task " + str(self.tid)
_logger.warning(strWarn)
_logger.warning("This will be transfered to the parent task.")
_logger.warning("Exception details : " + str(expc))
success = False
self.timeExec += time.time() - self.timeBegin
self.control.dtmExecLock.release()
if not self.xmlTrace is None:
# Debug output in xml object
self.control.traceLock.acquire()
etree.SubElement(self.xmlTrace, "event", {"type" : "end", "worker" : str(self.control.workerId), "time" : repr(time.time()), "execTime" : repr(self.timeExec), "success" : str(success)})
self.control.traceLock.release()
if success:
try:
self.control._addTaskStat(self.t.__name__, self.timeExec)
except AttributeError:
self.control._addTaskStat(str(self.t), self.timeExec)
if self.isRootTask:
# Is this task the root task (launch by dtm.start)? If so, we quit
self.control.lastRetValue = (success, returnedR)
self.control.exitSetHere = True
self.control.exitStatus.set()
else:
# Else, tell the communication thread to return the result
resultStruct = ResultContainer(tid = self.tid,
parentTid = self.taskInfo.creatorTid,
taskIndex = self.taskInfo.taskIndex,
execTime = self.timeExec,
success = success,
result = returnedR)
self.control._returnResult(self.taskInfo.creatorWid, resultStruct)
# Tell the control thread that something happened
self.control._startNewTask()
if self.isRootTask:
self.control.runningFlag.set()
self.control.waitingThreadsLock.acquire()
if self.tid in self.control.waitingThreads.keys():
del self.control.waitingThreads[self.tid]
self.control.waitingThreadsLock.release()
self.taskInfo.taskState = DTM_TASK_STATE_FINISH
def waitForResult(self):
# Clear the execution lock, and sleep
beginTimeWait = time.time()
self.timeExec += beginTimeWait - self.timeBegin
self.control.dtmExecLock.release()
self.taskInfo.taskState = DTM_TASK_STATE_WAITING
if not self.xmlTrace is None:
# Debug output in xml object
self.control.traceLock.acquire()
etree.SubElement(self.xmlTrace, "event", {"type" : "sleep", "worker" : str(self.control.workerId), "time" : repr(beginTimeWait)})
self.control.traceLock.release()
self.control._startNewTask()
self.control.runningFlag.set()
self.waitingFlag.wait()
self.waitingFlag.clear()
# At this point, we already have acquired the execution lock
self.taskInfo.taskState = DTM_TASK_STATE_RUNNING
self.timeBegin = time.time()
if not self.xmlTrace is None:
# Debug output in xml object
self.control.traceLock.acquire()
etree.SubElement(self.xmlTrace, "event", {"type" : "wakeUp", "worker" : str(self.control.workerId), "time" : repr(self.timeBegin)})
self.control.traceLock.release()
class AsyncResult(object):
"""
The class of the result returned by :func:`~deap.dtm.taskmanager.Control.map_async()` and :func:`~deap.dtm.taskmanager.Control.apply_async()`.
"""
def __init__(self, control, waitingInfo, taskKey):
self.control = control
self.resultReturned = False
self.resultSuccess = False
self.resultVal = None
self.taskKey = taskKey
self.dictWaitingInfo = waitingInfo
def _dtmCallback(self):
# Used by DTM to inform the object that the job is done
self.resultSuccess = self.dictWaitingInfo.rWaitingDict[self.taskKey].success
self.resultVal = self.dictWaitingInfo.rWaitingDict[self.taskKey].result
self.resultReturned = True
del self.dictWaitingInfo.rWaitingDict[self.taskKey]
def get(self):
"""
Return the result when it arrives.
.. note::
This is a blocking call : caller will wait in this function until the result is ready.
To check for the avaibility of the result, use :func:`~deap.dtm.taskmanager.AsyncResult.ready()`.
"""
if not self.resultReturned:
self.wait()
if self.resultSuccess:
return self.resultVal
else:
raise self.resultVal
def wait(self):
"""
Wait until the result is available
"""
self.control.waitingThreadsLock.acquire()
if self.ready():
# This test MUST be protected by the mutex on waitingThreads
self.control.waitingThreadsLock.release()
return
self.control.waitingThreads[threading.currentThread().tid].waitingMode = DTM_WAIT_SOME
self.control.waitingThreads[threading.currentThread().tid].rWaitingDict[self.taskKey].waitingOn = True
#self.dictWaitingInfo.waitingMode = DTM_WAIT_SOME
#self.dictWaitingInfo.rWaitingDict[self.taskKey].waitingOn = True
self.control.waitingThreadsQueue.put(threading.currentThread().taskInfo)
self.control.waitingThreadsLock.release()
threading.currentThread().waitForResult()
def ready(self):
"""
Return whether the asynchronous task has completed.
"""
return self.resultReturned
def successful(self):
"""
Return whether the task completed without error. Will raise AssertionError if the result is not ready.
"""
if not self.resultReturned:
raise AssertionError("Call AsyncResult.successful() before the results were ready!")
return self.resultSuccess
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