Hi Andreas,
In both cases, I am the user running the code.
Cheers,
Matthew
On Sep 1, 2011, at 5:06 AM, Andreas Kloeckner wrote:
> Hi Matthew,
>
> On Wed, 31 Aug 2011 22:10:33 -0700, Matthew Graham <m...@cacr.caltech.edu>
> wrote:
>> I have some code that runs fine as a standalone routine; however, I want to
>> incorporate it as part of a web service using CherryPy as the hosting
>> framework. When I try and call it from a client, I get:
>>
>> [31/Aug/2011:21:56:38] HTTP Traceback (most recent call last):
>> File
>> "/Library/Frameworks/Python.framework/Versions/6.0.0/lib/python2.6/site-packages/cherrypy/_cprequest.py",
>> line 606, in respond
>> cherrypy.response.body = self.handler()
>> File
>> "/Library/Frameworks/Python.framework/Versions/6.0.0/lib/python2.6/site-packages/cherrypy/_cpdispatch.py",
>> line 25, in __call__
>> return self.callable(*self.args, **self.kwargs)
>> File "tscs.py", line 124, in POST
>> response = self._analyze(data, kwargs)
>> File "tscs.py", line 83, in _analyze
>> row.append(self.stats[statid]['method'](data[id]))
>> File "/Users/mjg/Projects/python/kiss/statistics.py", line 268, in gpuls
>> lsp = Culsp()
>> File "/Users/mjg/Projects/python/kiss/culsp.py", line 146, in __init__
>> mod = compiler.SourceModule(kernel_code)
>> File
>> "/Library/Frameworks/Python.framework/Versions/6.0.0/lib/python2.6/site-packages/pycuda-2011.1-py2.6-macosx-10.5-i386.egg/pycuda/compiler.py",
>> line 271, in __init__
>> arch, code, cache_dir, include_dirs)
>> File
>> "/Library/Frameworks/Python.framework/Versions/6.0.0/lib/python2.6/site-packages/pycuda-2011.1-py2.6-macosx-10.5-i386.egg/pycuda/compiler.py",
>> line 218, in compile
>> arch = "sm_%d%d" % Context.get_device().compute_capability()
>> LogicError: cuCtxGetDevice failed: invalid context
>>
>> Any ideas? I'm running CUDA 4.0 and PyCUDA 2011.1.2.
>
> Have you run your code as the web user? (Often www-data, but maybe
> something different?) Does the same thing happen then? In any case, I
> suspect that this is some permissions/security issue. It might be
> helpful trying to replicate all the restrictions that web
> server-executed code has on it...
>
> HTH,
> Andreas
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