Bryan, Note that in 3.2, all files in cuda/lib are UB, including cudart (finally!).
I build fat-binary on OS-X (up to date 10.6.4, cuda 3.2, etc.), simply by setting the usual arch flags in siteconf.py: CXXFLAGS = ["-arch", "x86_64", "-arch", "i386"] LDFLAGS = ["-arch", "x86_64", "-arch", "i386"] The build succeeds just fine, but most functions don't actually work, and I'm not well versed enough in the details to figure it out. It seems that all the memory/mempool related tests pass, but the rest don't. Perhaps because something should be passed differently to nvcc when running 64-bit, as opposed to 32? -MinRK On Mon, Sep 20, 2010 at 08:34, Bryan Catanzaro <catan...@eecs.berkeley.edu>wrote: > I think it should be changed to check to see if the Python interpreter is > currently running in 32 bit mode, and then compile to match: > > if 'darwin' in sys.platform and sys.maxint == 2147483647: > # The Python interpreter is running in 32 bit mode on OS X > if "-arch" not in conf["CXXFLAGS"]: > conf["CXXFLAGS"].extend(['-arch', 'i386', '-m32']) > if "-arch" not in conf["LDFLAGS"]: > conf["LDFLAGS"].extend(['-arch', 'i386', '-m32']) > > Some people (myself included) have to run Python in 32-bit mode on 64-bit > OS X for various compatibility reasons (currently including libcudart.dylib, > which is only shipped as a 32-bit library). Since the Python which Apple > ships is compiled as a fat binary with both 32 and 64 bit versions, we can't > know a priori what the right compiler flags are. > > - bryan > > > > On Sep 19, 2010, at 5:55 PM, Andreas Kloeckner wrote: > > > On Thu, 16 Sep 2010 14:37:31 -0400, gerald wrong < > psillymathh...@gmail.com> wrote: > >> Looking at PyCUDA setup.py, I found this: > >> > >> if 'darwin' in sys.platform: > >> # prevent from building ppc since cuda on OS X is not compiled > for > >> ppc > >> # also, default to 32-bit build, since there doesn't appear to be > a > >> # 64-bit CUDA on Mac yet. > >> if "-arch" not in conf["CXXFLAGS"]: > >> conf["CXXFLAGS"].extend(['-arch', 'i386', '-m32']) > >> if "-arch" not in conf["LDFLAGS"]: > >> conf["LDFLAGS"].extend(['-arch', 'i386', '-m32']) > >> > >> Since 64bit CUDA support on Mac OS X is a reality since at least > CUDA3.1, > >> this should be changed. I know there are other problems regarding 32/64 > >> python stopping 64bit mac users at the moment (including myself), but > since > >> changes are being made to the PyCUDA code to make it compatible with > CUDA3.2 > >> anyway... > > > > It looks like this should just be killed wholesale--right? Or is there > > anything more appropriate that it should be changed to? > > > > Andreas > > > > _______________________________________________ > > PyCUDA mailing list > > PyCUDA@tiker.net > > http://lists.tiker.net/listinfo/pycuda > > - bryan > > > > > _______________________________________________ > PyCUDA mailing list > PyCUDA@tiker.net > http://lists.tiker.net/listinfo/pycuda > >
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