Under Windows 10, after successfully installing tensorflow gpu, and keras gpu, I installed theano gpu using:
conda install theano pygpu
Everything still worked fine, tensorflow gpu, keras gpu, etc. I ran simple example in theano, and on executing the line in jupyter,
import numpy
import theano.tensor as T
from theano import function
it gives a warning:
WARNING (theano.configdefaults): g++ not available, if using conda: `conda install m2w64-toolchain`
C:\Anaconda3\lib\site-packages\theano\configdefaults.py:560: UserWarning: DeprecationWarning: there is no c++ compiler.This is deprecated and with Theano 0.11 a c++ compiler will be mandatory
warnings.warn("DeprecationWarning: there is no c++ compiler."
WARNING (theano.configdefaults): g++ not detected ! Theano will be unable to execute optimized C-implementations (for both CPU and GPU) and will default to Python implementations. Performance will be severely degraded. To remove this warning, set Theano flags cxx to an empty string.
WARNING (theano.tensor.blas): Using NumPy C-API based implementation for BLAS functions.
So I decided to install g++ using conda as it suggested:
conda install m2w64-toolchain
Now, when I run the same line in theano,
import numpy
import theano.tensor as T
I get an error:
You can find the C code in this temporary file: C:\Users\IVANFI~1\AppData\Local\Temp\theano_compilation_error_fq4oz7pp
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
C:\Anaconda3\lib\site-packages\theano\gof\lazylinker_c.py in <module>()
80 version,
---> 81 actual_version, force_compile, _need_reload))
82 except ImportError:
ImportError: Version check of the existing lazylinker compiled file. Looking for version 0.211, but found None. Extra debug information: force_compile=False, _need_reload=True
During handling of the above exception, another exception occurred:
ImportError Traceback (most recent call last)
C:\Anaconda3\lib\site-packages\theano\gof\lazylinker_c.py in <module>()
104 version,
--> 105 actual_version, force_compile, _need_reload))
106 except ImportError:
ImportError: Version check of the existing lazylinker compiled file. Looking for version 0.211, but found None. Extra debug information: force_compile=False, _need_reload=True
During handling of the above exception, another exception occurred:
Exception Traceback (most recent call last)
<ipython-input-12-29f575dfe616> in <module>()
1 import numpy
----> 2 import theano.tensor as T
C:\Anaconda3\lib\site-packages\theano\__init__.py in <module>()
108 object2, utils)
109
--> 110 from theano.compile import (
111 SymbolicInput, In,
112 SymbolicOutput, Out,
C:\Anaconda3\lib\site-packages\theano\compile\__init__.py in <module>()
10 from theano.compile.function_module import *
11
---> 12 from theano.compile.mode import *
13
14 from theano.compile.io import *
C:\Anaconda3\lib\site-packages\theano\compile\mode.py in <module>()
9 import theano
10 from theano import gof
---> 11 import theano.gof.vm
12 from theano import config
13 from six import string_types
C:\Anaconda3\lib\site-packages\theano\gof\vm.py in <module>()
672 if not theano.config.cxx:
673 raise theano.gof.cmodule.MissingGXX('lazylinker will not be imported if theano.config.cxx is not set.')
--> 674 from . import lazylinker_c
675
676 class CVM(lazylinker_c.CLazyLinker, VM):
C:\Anaconda3\lib\site-packages\theano\gof\lazylinker_c.py in <module>()
138 args = cmodule.GCC_compiler.compile_args()
139 cmodule.GCC_compiler.compile_str(dirname, code, location=loc,
--> 140 preargs=args)
141 # Save version into the __init__.py file.
142 init_py = os.path.join(loc, '__init__.py')
C:\Anaconda3\lib\site-packages\theano\gof\cmodule.py in compile_str(module_name, src_code, location, include_dirs, lib_dirs, libs, preargs, py_module, hide_symbols)
2394 # difficult to read.
2395 raise Exception('Compilation failed (return status=%s): %s' %
-> 2396 (status, compile_stderr.replace('\n', '. ')))
2397 elif config.cmodule.compilation_warning and compile_stderr:
2398 # Print errors just below the command line.
. collect2.exe: error: ld returned 1 exit statusompiledir_Windows-10-10.0.17134-SP0-Intel64_Family_6_Model_158_Stepping_9_GenuineIntel-3.6.6-64/lazylinker_ext/mod.cpp:976: undefined reference to `__imp__Py_TrueStruct'Error'e undefined references to `__imp__Py_NoneStruct' followow
Removing it
conda remove m2w64-toolchain
Doesn't help. It seems like theano is now permanently damaged. How do I restore theano to working?
