multiprocessing error for：“LunarLander_multiobject.json” about deep-symbolic-optimization HOT 2 CLOSED

Hi, unfortunately our multiobject parts of the code are not very well tested because it's a pretty narrow use case for us. I think the issue is over in program.py::Program.__getstate__ and program.py::Program.__setstate__. These define how multiprocessing passes Program objects back and forth, and apparently this was not done correctly for the multiobject=True case.

So, I would simply comments out the two functions Program.__getstate__ and Program.__setstate__. They are not necessary for using multiprocessing, and they only give a very small amount of speedup for multiobject=False. Actually, in our current internal version of the code (which we hope to update to Github soon!) we removed these two function since they've been problematic. Let us know if this works!

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嗨，不幸的是，我们的multiobject部分代码没有经过很好的测试，因为这对我们来说是一个非常狭窄的用例。我认为这个问题已经结束program.py::Program.__getstate__了program.py::Program.__setstate__。这些定义了如何来回multiprocessing传递对象，显然在这种情况下没有正确完成。Program``multiobject=True

所以，我会简单地注释掉这两个函数Program.__getstate__和Program.__setstate__。它们不是 using 所必需的multiprocessing，并且它们只为 . 提供非常少量的加速multiobject=False。实际上，在我们当前的代码内部版本（我们希望尽快更新到 Github！）中，我们删除了这两个函数，因为它们存在问题。让我们知道这是否有效！

Thanks, that works for me！

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