Hi all,
Has anyone tried to use PyOpenCL with OSX10.8? For me the compilation
is successful, but I'm getting the following error:
Python 2.7.3 (default, Jul 28 2012, 10:31:30)
[GCC 4.2.1 Compatible Apple Clang 4.0 ((tags/Apple/clang-421.0.57))] on darwin
Type "help", "copyright", "credits" or "license" for more information.
>>> import pyopencl
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File
"/Users/bogdan/.virtualenvs/py2/lib/python2.7/site-packages/pyopencl/__init__.py",
line 4, in <module>
import pyopencl._cl as _cl
ImportError:
dlopen(/Users/bogdan/.virtualenvs/py2/lib/python2.7/site-packages/pyopencl/_cl.so,
2): Symbol not found: _clCreateProgramWithBuiltInKernels
Referenced from:
/Users/bogdan/.virtualenvs/py2/lib/python2.7/site-packages/pyopencl/_cl.so
Expected in: flat namespace
in /Users/bogdan/.virtualenvs/py2/lib/python2.7/site-packages/pyopencl/_cl.so
OpenCL framework seems to be connected to the _cl.so:
$ otool -L
/Users/bogdan/.virtualenvs/py2/lib/python2.7/site-packages/pyopencl/_cl.so
/Users/bogdan/.virtualenvs/py2/lib/python2.7/site-packages/pyopencl/_cl.so:
/System/Library/Frameworks/OpenCL.framework/Versions/A/OpenCL
(compatibility version 1.0.0, current version 1.0.0)
/usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current
version 56.0.0)
/usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
version 169.3.0)
There is also a minor issue during the compilation: clang does not
quite understand the sequence "-Wl -framework OpenCL", and treats
"-Wl" as if it were a warning-related option. This can be fixed by
replacing '-Wl', '-framework', 'OpenCL' by '-Wl,-framework,OpenCL' in
siteconf.py (or, better, somewhere in setup.py), but it does not help
with the symbol problem.
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