python优化失败原因是: local_dot_to_dot22

Question

我只是安装了theano并尝试运行theano.test()。它产生了一个很长的错误日志，我复制了第一部分。我还尝试了另外几个例子--我见过

"local_dot_to_dot22" 

和

 "ValueError: invalid token "Files\Enthought\Canopy\App\appdata\canopy1.5.2.2785.win-x86_64\Scripts" in ldflags_str: "-LC:\Program Files\Enthought\Canopy\App\appdata\canopy-1.5.2.2785.win-x86_64\Scripts -lmk2_core -lmk2_intel_thread -lmk2_rt" 

好几次了。

我用的是python 2.7 (冠层)，scipy 0.15.1-2和numpy 1.9.2-1。我对西亚诺很陌生。如果你能给我指明正确的方向，我很感激。谢谢!

EEEEEERROR (theano.gof.opt): Optimization failure due to: local_dot_to_dot22
ERROR:theano.gof.opt:Optimization failure due to: local_dot_to_dot22
ERROR (theano.gof.opt): TRACEBACK:
ERROR:theano.gof.opt:TRACEBACK:
ERROR (theano.gof.opt): Traceback (most recent call last):
File "c:\theano\theano\gof\opt.py", line 1737, in process_node
replacements = lopt.transform(node)
File "c:\theano\theano\tensor\blas.py", line 1776, in local_dot_to_dot22
return [_dot22(x.dimshuffle('x', 0), y).dimshuffle(1)]
File "c:\theano\theano\gof\op.py", line 647, in __call__
no_recycling=[])
File "c:\theano\theano\gof\op.py", line 918, in make_thunk
no_recycling)
File "c:\theano\theano\gof\op.py", line 836, in make_c_thunk
output_storage=node_output_storage)
File "c:\theano\theano\gof\cc.py", line 1175, in make_thunk
keep_lock=keep_lock)
File "c:\theano\theano\gof\cc.py", line 1113, in __compile__
keep_lock=keep_lock)
File "c:\theano\theano\gof\cc.py", line 1541, in cthunk_factory
key = self.cmodule_key()
File "c:\theano\theano\gof\cc.py", line 1257, in cmodule_key
compile_args=self.compile_args(),
File "c:\theano\theano\gof\cc.py", line 936, in compile_args
ret += x.c_compile_args()
File "c:\theano\theano\tensor\blas.py", line 652, in c_compile_args
return ldflags(libs=False, flags=True)
File "c:\theano\theano\tensor\blas.py", line 537, in ldflags
include_dir=include_dir)
File "c:\theano\theano\gof\utils.py", line 182, in rval
val = f(*args, **kwargs)
File "c:\theano\theano\tensor\blas.py", line 597, in _ldflags
% (t, ldflags_str))
ValueError: invalid token "Files\Enthought\Canopy\App\appdata\canopy-    1.5.2.2785.win-x86_64\Scripts" in ldflags_str: "-LC:\Program Files\Enthought\Canopy\App\appdata\canopy-1.5.2.2785.win-x86_64\Scripts -lmk2_core -lmk2_intel_thread -lmk2_rt"

Answer 1

这里的问题是在您的路径中有空间所造成的问题，即C:\Program Files\Enthought\Canopy中安装了Canopy，但是Theano脚本不能很好地处理Program和Files之间的空间。请尝试卸载Canopy并在路径中没有空格的目录中重新安装。

您还应该遵循在Windows上安装Theano的其他说明。不幸的是，它并不像pip install theano那么简单。

Answer 2

如果您不想重新安装东西，例如，如果它们是繁重的程序，会影响窗口的注册表，所以您可以尝试使用符号链接。

符号链接将创建类似于文件夹的快捷方式，但其他应用程序则将其视为实际文件夹。

所以，你可以这样做：

• 以管理员身份运行cmd
• 用户此命令：mklink /D "C:\LinkToProgramFiles" "C:\Program Files"

然后，您将开始在ldflags中使用"C:\LinkToProgramFiles“。