在Windows上安装Theano - DLL加载失败

Question

我想在Windwos 8上安装Theano

遵循了这些步骤.

我尝试使用测试:

import numpy as np
import time
import theano

print('blas.ldflags=', theano.config.blas.ldflags)
A = np.random.rand(1000, 10000).astype(theano.config.floatX)
B = np.random.rand(10000, 1000).astype(theano.config.floatX)
np_start = time.time()
AB = A.dot(B)
np_end = time.time()
X, Y = theano.tensor.matrices('XY')
mf = theano.function([X, Y], X.dot(Y))
t_start = time.time()
tAB = mf(A, B)
t_end = time.time()
print("NP time: %f[s], theano time: %f[s] (times should be close when run on CPU!)" % (
np_end - np_start, t_end - t_start))
print("Result difference: %f" % (np.abs(AB - tAB).max(), ))

我知道该脚本是numpy和theano计算时间之间的比较.

但不知何故,找不到一些dll.Pl找到以下日志:

[Py341] C:\>python ML\Deep\TheanoSetupTesting.py
blas.ldflags= -LE:\Things_Installed_Here\Theano\openblas -lopenblas
Traceback (most recent call last):
  File "ML\Deep\TheanoSetupTesting.py", line 12, in <module>
    mf = theano.function([X, Y], X.dot(Y))
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\compile\function.py", line 317, in function
    output_keys=output_keys)
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\compile\pfunc.py", line 526, in pfunc
    output_keys=output_keys)
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\compile\function_module.py", line 1778, in orig_function

    defaults)
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\compile\function_module.py", line 1642, in create input_storage=input_storage_lists, storage_map=storage_map)
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\gof\link.py", line 690, in make_thunk
    storage_map=storage_map)[:3]
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\gof\vm.py", line 1037, in make_all
    no_recycling))
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\gof\op.py", line 932, in make_thunk
    no_recycling)
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\gof\op.py", line 850, in make_c_thunk
    output_storage=node_output_storage)
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\gof\cc.py", line 1207, in make_thunk
    keep_lock=keep_lock)
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\gof\cc.py", line 1152, in __compile__
    keep_lock=keep_lock)
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\gof\cc.py", line 1602, in cthunk_factory
    key=key, lnk=self, keep_lock=keep_lock)
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\gof\cmodule.py", line 1174, in module_from_key  module = lnk.compile_cmodule(location)
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\gof\cc.py", line 1513, in compile_cmodule
    preargs=preargs)
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\gof\cmodule.py", line 2196, in compile_str
    return dlimport(lib_filename)
  File "E:\Things_Installed_Here\Anaconda_Py\envs\Py341\lib\site-packages\theano-0.7.0-py3.4.egg\theano\gof\cmodule.py", line 331, in dlimport
    rval = __import__(module_name, {}, {}, [module_name])
ImportError: DLL load failed: The specified module could not be found.

作为python世界的新手,我无法找到未找到的Dll.如果丢失我会安装它,并将添加系统路径变量的路径.但是我怎么知道它是哪个dll.我尝试在各个位置使用pdb并设置断点cmodule.py,但没有一个被击中.

1. 您是否熟悉此类错误及其解决方案？
2. 否则,帮我找到丢失的dll名称,我会完成其余的工作.
3. 我不介意在安装时走一条完全不同的道路theano.我发现了一些帖子,建议微软编译器工作得很好.但是我已经连续14个小时以来一直在讨论一个问题,并且想要一种有效的方法.最终我想要theano我的系统.

顺便说一句,没有CUDA.我只在尝试CPU.

Answer 1

这可能有点晚了.我按照与你完全相同的指南,遇到了同样的错误.

原来可以通过将openblas目录添加到系统路径来修复它.在您的示例中,将"E:\ Things_Installed_Here\Theano\openblas"添加到系统路径变量.

请注意,根据放置DLL文件的位置,您需要添加"E:\ Things_Installed_Here\Theano\openblas"或"E:\ Things_Installed_Here\Theano\openblas\bin".

Windows 10 64位,Python 3.5.1(Anaconda 2.5),Theano 0.8.2.

对于那些需要它的人,我可以在Windows 10中安装Theano,这要归功于这三个指南guide1,guide2和OP附带的指南.

Answer 2

好吧，我终于找到了至少我使用 WinPython、python3.5.1.1、Win 7 64bit 和 mingw64 安装的原因：

在 .theanorc[.txt] 文件中，安装 blas 后，我有一个 [blas] 部分，其中一行包含 openblas 包含路径。我删除了该行并将下面的区域留为空白。重新启动 WinPython/Spider，打开一个新控制台，它就可以工作了。

随后使用 Theano 从 Lasagne 运行 mnist.py 进行测试。