Question

我有一个多处理脚本，如下所示：

from multiprocessing import Pool

currentDepth = 1
maxDepth = 3
nodeList = []
auxList = []

def grow():
    global nodeList
    global auxList
    while(nodeList):
        print("Iterate on: " + str(nodeList))
        p.map(proc1, nodeList)
        print("Repopulating nodeList: " + str(nodeList) + " from auxList: " + str(auxList))   
        nodeList = list(auxList)

nodeList.append(seed)
p = Pool(8)
grow()

proc1函数调用proc2函数，如下所示：

def proc1(currentNode):
     val = int(currentNode.name)*2
     if (val not in visited):
         proc2(currentNode, val, currentNode.depth+1)

def proc2(currentNode, newVal, depth):
    global currentDepth
    global auxList
    print("Next node value: " str(newVal))
    print("Next node depth: " str(depth))
    nextNode = Tree(name='{}'.format(newVal))
    currentNode.add_child(nextNode)
    if depth > currentDepth:
        currentDepth = depth
        print("Current Depth updated: " + str(currentDepth))
        print("Maximum Depth: " + str(maxDepth))
    if depth < maxDepth:
        print("Appending to aux: " + str(nextNode.name)
        auxList.append(nextNode)
        print("auxList: " + str(auxList))

proc2成功附加到auxList，Iterate on: [Tree node '2' (0x7f3537cd61d)] Next node value: 4 Node depth: 2 Current Depth updated: 2 Maximum Depth: 3 Appending to aux: 4 auxList: [Tree node '4' (0x7f79abec191)] Repopulating nodeList: [Tree node '2' (0x7f79ac3171d)] from auxList: []反过来应该每次迭代重新填充nodeList直到某个深度。打印输出如下：

auxList

一切都在正确编译，为什么Ouseph MM, Li J, Chen HZ, Pécot T, Wenzel P, Thompson JC, Comstock G, Chokshi V, Byrne M, Forde B, Chong JL, Huang K, Machiraju R, de Bruin A, Leone G (2012) Atypical E2F repressors and activators coordinate placental development. <i>Dev Cell</i>. 22(4):849-62 PMCID:PMC3483796错过了它的条目？我对异步执行和我对全局变量的使用有一些怀疑，但我无法弄清楚问题是什么。提前谢谢大家！

Python多处理清除列表结构？

0 个答案: