Hi Bryan, thanks for the quick reply. I understand the issue now. So it looks like any devices of compute capability 1.x would not have support for double precision (from section 5.1.1.1 of the NVIDIA CUDA Programming Guide).
Does this seem like a reasonable way of checking for double precision support in the test script? e.g., : import pycuda.driver as cuda dev=cuda.Device(0); if dev.compute_capability() < (2,0): no double precision support, don't run those tests... On Fri, Apr 23, 2010 at 9:07 PM, Bryan Catanzaro <bryan.catanz...@gmail.com>wrote: > The GPU in your MacBook doesn't support double precision, which is why > these tests are failing. > You're of course welcome to change the tests so that they check for double > precision support before running them - that would probably help out others > who end up in this situation. > > - bryan > > On Apr 23, 2010, at 5:41 PM, Chethan Pandarinath < > chethan.pandarin...@gmail.com> wrote: > > Hi everybody, > > I've been working on installing PyCUDA on my MacBook (Snow Leopard). I > think I'm close to having it working, it's been quite a long road: getting > compatible versions of boost, setuptools, pytools... anyway, I think I'm > past all that. > > I can now successfully run test_math.py and test_driver.py with no errors. > > I am having trouble, however, with test_gpuarray.py > > I'm attaching the output from running the test script, with the standard > error appended as well. > $ arch -i386 python test_gpuarray.py >test_gpuarray_output.txt > > > There are a couple types of errors that I can see here: > > E AssertionError: (array(-4.2129004090721698e+36), > -1.2509687918788644e+303, <type 'numpy.float64'>, 'min') > test_gpuarray.py:328: AssertionError > > E assert array(-6.0786212321272663e+144) == > -2.6357594520767543e+301 > test_gpuarray.py:357: AssertionError > > E LaunchError: cuCtxPopCurrent failed: launch failed > /Library/Python/2.6/site-packages/pycuda/tools.py:504: LaunchError > > E RuntimeError: make_default_context() wasn't able to create a > context on any of the 1 detected devices > /Library/Python/2.6/site-packages/pycuda/tools.py:216: RuntimeError > > > To tell you the truth I don't know how to begin debugging this. If anyone > can point me in the right direction, I'd greatly appreciate it. Willing to > provide any info that would help... > > I'm running this on a MacBook, Snow Leopard (10.6.3), with an NVIDIA > GeForce 9400M. Using Python 2.6.1. > > Thanks. > Chethan > > > > -- > Chethan Pandarinath > <chethan.pandarin...@gmail.com>chethan.pandarin...@gmail.com > > <test_gpuarray_output.txt> > > _______________________________________________ > PyCUDA mailing list > pyc...@host304.hostmonster.com > http://host304.hostmonster.com/mailman/listinfo/pycuda_tiker.net > > -- Chethan Pandarinath chethan.pandarin...@gmail.com
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