Re: [PyCUDA] PyCuda Launch Timeout under Py2Exe
I was unable to solve the launch timeouts by removing elements of the kernel code. This seemed to me to point to a problem with CUDA, after reinstalling Windows (XP Pro SP3), CUDA, etc., the program executes correctly when packaged. I am now unable to reproduce the error. As such it would seem that when Windows/CUDA is playing ball py2exe seems able to handle pycuda 'out of the box'. The distutils script must explicitly include the pyCuda header files, and exclude nvcudal.dll. Many thanks for your time. Regards, Sam. -Original Message- From: Andreas Kloeckner [mailto:li...@informa.tiker.net] Sent: 21 May 2010 13:56 To: Samuel Powell; pycuda@tiker.net Subject: RE: [PyCUDA] PyCuda Launch Timeout under Py2Exe On Fri, 21 May 2010 13:24:51 +0100, Samuel Powell spow...@medphys.ucl.ac.uk wrote: Hi Andreas, You are correct in your assertion. I followed your advice by packaging some of the pyCuda example scripts using py2exe before executing them. In the majority of cases, I found no problem executing the packaged code. If, as you suggest, the launch failure is likely caused by a segfault on the device, I think the best course of action is for me to dissect the CUDA kernel until it runs correctly, thus identifying where the bad addressing comes into play. Would you agree with this analysis? That sounds plausible. Good luck with your bug hunting, Andreas PS: Please keep the list cc'd when replying. Thx! ___ PyCUDA mailing list PyCUDA@tiker.net http://lists.tiker.net/listinfo/pycuda
Re: [PyCUDA] PyCuda Launch Timeout under Py2Exe
On Wed, 19 May 2010 22:03:02 +0100, Samuel Powell spow...@medphys.ucl.ac.uk wrote: Hi, I have written a PyCuda based simulation code that successfully executes when run normally with Python. I need to distribute this code to my colleagues - owing to the large number of package dependencies and potential unfamiliarity with Python I have been attempting to package the code using Py2Exe. Execution of the code via the Py2Exe-generated executable leads to a launch timeout when the code attempts to run the CUDA kernel. Traceback (most recent call last): File gui.pyc, line 236, in simulate File controller.pyc, line 131, in simulate File pycuda\driver.pyc, line 169, in function_call pycuda._driver.LaunchError: cuCtxSynchronize failed: launch timeout During the attempted launch the graphics output of the machine is frozen. Note that the code successfully communicates with the card via CUDA prior to launching the kernel (transferring various constants/textures). Can anyone offer any advice as to how to fix this problem, or, indeed, how to debug it!? Does py2exe add the Nvidia's CUDA DLL to the package? (nvcuda.dll or some such) If so, you should tell it to not do that--the version already present on the target system should be used. If not, I'm not sure what could be wrong. Andreas pgpF1wdas3bvN.pgp Description: PGP signature ___ PyCUDA mailing list PyCUDA@tiker.net http://lists.tiker.net/listinfo/pycuda
