Initialize unified memory

Autonomous Machines Jetson & Embedded Systems Jetson TX2
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1

Hi,

I am working on jetson TX2, and I am using a Gige Camera.

I didn’t find a way to copy directly the image in unified memory (I can use pinned memory too). Is there a solution to do that ?
The pointer is not declare in unified memory, I don’t control the adress of the image provides by the camera. I have to initialize the image stocked in unified memory with a for-loop, and it takes a long time.

Thank you for your help

3

Hi,
You may try the function:

cudaMallocManaged (&address, size, cudaMemAttachGlobal);

We have sample in

/usr/src/jetson_multimedia_api/samples/v4l2cuda

It demonstrates frame capture through v4l2. Your camera should not support v4l2, but you can refer to the part of allocating buffers.