Comments (2)
Is there a working Thrust-Free version of the Somoclu Python package available? I am experiencing an issue similar to #89, where the GPU training is slower than the CPU. While I would think that it might benefit from scaling, If I try to use more than a few hundred points, it throws the following error:
terminate called after throwing an instance of 'thrust::system::system_error'
what(): device free failed: an illegal memory access was encountered
Aborted
I am currently doing this with a 512x512 map w/ a feature vector length of 956. I can train with 256 points or so, but trying to 512 fails. With 256 points it is slightly (3 seconds) faster than the dense CPU kernel.
I am currently running Debian Buster, with a M1000M Quadro GPU using the Nvidia 410.48 drivers and CUDA 10.0 installed via the cuda_10.0.130_410.48_linux.run file provided by NVIDIA.
Thanks for any help you might be able to give.
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...any status on this? It seems like Thrust implementation has been taken over by CUDA (see https://www.reddit.com/r/cpp/comments/7erub1/anybody_still_using_thrust/ ), so I'm curious if there's a way to call the updated routines in CUDA without having to fundamentally rewrite the kernels...
My understanding is that this is why the behavior in #89 happens, so it'd be great to use more modern GPU functionality (especially re: memory management).
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Related Issues (20)
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