> For the latter, all dependencies are 64-bit
> libraries except for MSVCR90.dll, MSVCP90.dll, the boost_python dll
> mentioned above, python26.dll, and the _cl.pyd I am examining.  For the next
> step in getting this to work, I don't what of all this is relevant.  Should
> I abandon trying to make it work in a 64-bit OS?  Has anyone ever made it
> work in 64-bit Windows?

I'm not sure I understand what you're saying here--which ones are
64-bit, and which ones are 32? Wouldn't they all need to be 64-bit?
 
OK, you're probably right that they should all be 64-bit.  I imagine I can find 64-bit version of each of them, except _CL.pyd.  I don't know why the pyOpenCl build script didn't try to build me a 64-bit version.  Maybe it was just matching the bit-depth of its immediate dependencies (e.g. Python26.dll, BoostPython-VC90-MT-1.43.dll).  Perhaps I should work from the bottom and try to get/build 64-bit dll's all the way up.  Is it known whether anyone has built a 64-bit _CL.pyd in Windows?  

Rick  

--
Richard C. Gerkin
Postdoctoral Fellow, Dept. of Biological Sciences
Carnegie Mellon University