OpenCV DNN on GPU

asked 2017-12-11 03:52:36 -0600

wingsoflight gravatar image

Hello, I recently tested pretrained MobileNet SSD on my machine by using cv2.dnn module in python. It seems my code is only computing on CPU. So, I wanted to know: is there is any GPU support in cv2.dnn module?

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Not yet ... its planned for the near future, but for now, no GPU support yet.

StevenPuttemans gravatar imageStevenPuttemans ( 2017-12-11 06:04:33 -0600 )edit

I'm really happy about the DNN module - especially because the DNN libraries have very limited C++ support. However it's really slow on CPU, so I also hope that it will be implemented on GPUs too - so you get my upvote.

OTOH as long as you use Python, you can use the original DNN library for processing - they all have good GPU support.

kbarni gravatar imagekbarni ( 2017-12-11 06:36:58 -0600 )edit

There is OpenCL support, https://docs.opencv.org/master/d6/d0f....

dkurt gravatar imagedkurt ( 2017-12-11 07:28:39 -0600 )edit
2

Great! (I prefer OpenCL support, as it's much more general than Cuda)

kbarni gravatar imagekbarni ( 2017-12-11 08:18:31 -0600 )edit
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I was able to run my script on my GPU by using OpenCL, but it runs 2x slower than on CPU :\

wingsoflight gravatar imagewingsoflight ( 2017-12-12 02:41:37 -0600 )edit

@wingsoflight, what kind of GPU?

dkurt gravatar imagedkurt ( 2017-12-12 08:53:27 -0600 )edit

@dkurt, Quadro M2000

wingsoflight gravatar imagewingsoflight ( 2017-12-12 14:39:03 -0600 )edit

Where you able to figure out a solution for the poor performance on GPU?

ashr gravatar imageashr ( 2018-05-09 01:51:24 -0600 )edit

Did you figure out why it ran slower on the GPU when compared to the CPU? Isn't it supposed to be the other way around?

tejasa97 gravatar imagetejasa97 ( 2018-08-18 03:09:29 -0600 )edit
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