CODEWITHSUNDEEP
pythonboost-pythonpycuda
miz
miz

Reputation: 185

Pycuda installation on Ubuntu

I'm having a difficult time installing pycuda. I am running on Ubuntu 12.04. I first installed the Enthought python distribution (even though I already had python on the computer). I added the enthought python location to the path in my .profile (and this works without issue, typing python or ipython from the command line correctly uses the enthought version). I then followed the instructions from http://wiki.tiker.net/PyCuda/Installation/Linux/Ubuntu (skipping steps 0-1 as I already had numpy and cuda installed).

Everything seems to run and install fine. But when I try to actually use pycuda, it fails. For example, here's what happens when I try to run the hello_gpu.py example:

:~/Downloads/pycuda-2012.1$ python examples/hello_gpu.py 
Traceback (most recent call last):
  File "examples/hello_gpu.py", line 1, in <module>
    import pycuda.driver as drv
  File "/usr/lib/python_enthought/lib/python2.7/site-packages/pycuda-2012.1-py2.7-linux-        x86_64.egg/pycuda/driver.py", line 2, in <module>
    from pycuda._driver import *
ImportError: /usr/lib/libboost_python-py27.so.1.46.1: undefined symbol:         
PyUnicodeUCS4_FromEncodedObject

Alternatively, when I try to import the pycuda package from idle, I get a different error:

Python 2.7.3 |EPD 7.3-1 (64-bit)| (default, Apr 11 2012, 17:52:16) 
[GCC 4.1.2 20080704 (Red Hat 4.1.2-44)] on linux2
Type "credits", "demo" or "enthought" for more information.
>>> import pycuda
>>> pycuda
<module 'pycuda' from 'pycuda/__init__.pyc'>
>>> import pycuda.driver as drv
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
  File "pycuda/driver.py", line 2, in <module>
    from pycuda._driver import *
ImportError: No module named _driver

I suspect part of the issue is me somewhere not specifying the correct path to the python interpreter, but I cannot figure out where this error occurs. Any suggestions would be most welcome, I am out of ideas.

Upvotes: 0

Views: 2953

Answers (1)

talonmies
talonmies

Reputation: 72349

This problem would appear to have been caused by conflicts between two different Python installations on the same system. The OP apparently solved this by uninstalling an Enthough Python installation and using only the system Python installation. There might well be other ways to solve this using a non-system Python installation, as suggested here

[This answer was assembled from comments and added as a community wiki entry in the hope it will receive a vote and be removed from the unanswered list for the PyCUDA tag]

Upvotes: 0

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