Dear all,
I am curious whether anyone could give me a hint what I could do to use
PyOpenCL in Ubuntu 12.10 with my NVIDIA card?
I have an Asus laptop with Optimus technology (i.e., with two graphic
cards: one simple Intel graphic card for saving energy and one NVIDIA).
After installing bumblebee, I can access the NVIDIA card using the
optirun command (e.g., "optirun ipython" for the output below). However,
it seems that the proprietary NVIDIA driver does not support OpenCL 1.2,
but only OpenCL 1.1:
====================
In [1]: import pyopencl
---------------------------------------------------------------------------
ImportError Traceback (most recent call last)
<ipython-input-1-63105a952239> in <module>()
----> 1 import pyopencl
/usr/lib/python2.7/dist-packages/pyopencl/__init__.py in <module>()
2
3 try:
----> 4 import pyopencl._cl as _cl
5 except ImportError:
6 import os
ImportError: /usr/lib/python2.7/dist-packages/pyopencl/_cl.so: symbol
clRetainDevice, version OPENCL_1.2 not defined in file libOpenCL.so.1
with link time reference
====================
When forcing Python to use the library ocl-icd-libopencl1, instead I run
in to a differen error:
====================
In [1]: import pyopencl
In [2]: pyopencl.get_platforms()
---------------------------------------------------------------------------
LogicError Traceback (most recent call last)
<ipython-input-2-2a778713b183> in <module>()
----> 1 pyopencl.get_platforms()
LogicError: clGetPlatformIDs failed: platform not found khr
====================
For Ubuntu 13.04, it seems that the same problem will persist. Does
anyone have a hint how to circumvent this problem?
thanks a lot in advance and best regards
Alex
ps: BTW, I found the following site which offers a workaround through a
dummy package to install pyopencl from Ubuntu repositories:
http://tuxicate.blogspot.de/2013/04/opencl-python-and-ubuntu-1210.html
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