compiling opencv with gpu cuda support

Question

I am using OpenCV 2.3.1 with CUDA 4.0.

I have installed the OpenCV 2.3.1 by CMAKE with WITH_CUDA flag on. And then I compiled the OpenCV solution in release and debug mode, but still when I used the getCudaEnabledDevice function of CV::GPU it is returning 0. This means it is not detecting the CUDA enabled device.

It seems that I have done everything right, still what is happening??

Can Anybody suggest where can be the problem now??.

Thanks in advance.

But I have read in the willowgarage documents that opencv 2.3.1 supports cuda 4.0 only.opencv 2.4 supports cuda 4.1. — user1393349
– user1393349, Commented May 16, 2012 at 9:00
2.3.1 definitly does not require 4.1, I doubt it will even work with it... Is the cuda toolkit and sdk installed? I highly recommend installing cmake-gui for easier installation, you might even see what cuda related stuff is not found (if applicable) can you run device query using the toolkit? I do however recommend 2.4 w/ 4.1 seeing that it is available, I remember some supreme annoyances with regard to that specific version. but hey it's up to you — jeffrico el exotico
– jeffrico el exotico, Commented May 17, 2012 at 1:09

john k · Accepted Answer · 2012-12-28 10:56:11Z

1

I had the same problem. I fixed it by copying opencv_core243d.dll from E:\opencv\build\gpu\x64\vc10\lib folder to the work directory with the .exe.
Don't know why that should matter but it did.

Using cuda 5.0
VS2010 express
win 7 x64

answered Dec 28, 2012 at 10:56

john k

6,6725 gold badges59 silver badges63 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

compiling opencv with gpu cuda support

1 Answer 1

Comments

Your Answer

Linked

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Linked

Related