topic OpenVX on iMX8Plus in i.MX Graphics

OpenVX on iMX8Plus

PyM72 — Wed, 15 Dec 2021 08:35:53 GMT

Hi NXP's Experts and Community,

I'm trying to build and run OpenVX Samples from Khronos (https://github.com/KhronosGroup/openvx-samples). I used Yocto BSP 5_4_70-2_3_0 for SDK cross compile and deployment.

When I tried to run any those samples it looks like only CPU is running no GPU. I was expecting much more GPU than CPU fir such tests.

Did I make something wrong ?

Regards and thanks

Re: OpenVX on iMX8Plus

joanxie — Mon, 27 Dec 2021 09:21:15 GMT

I.MX8MP NPU supports OpenVX, you can refer to the documents as below:

"https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/OpenVX-Vision-Image-Extension-API-Introduction-Basic-API/ta-p/1117280"

"https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/How-to-use-OpenVX-extension-for-NPU-GPU-to-accelerate-machine/ta-p/1113429"

Re: OpenVX on iMX8Plus

PyM72 — Mon, 10 Jan 2022 13:54:48 GMT

Hi joanxie I read carefully the documents below. Well I read only one though since the first one can't be reached My understanding the second link is your OpenVX implementation is tight to your device: vendor-specific extensions. But does NXP's OpenVX (VSI) follow the whole Khronos spec ? Running the same OpenVX example on NVIDIA Video card, the CPU loads is really almost nothing: most processing in perform with GPU. Do you confirm my assumption ? or would it be possible to have a try with the example from Khronos ? Thanks and regard

Re: OpenVX on iMX8Plus

joanxie — Thu, 17 Feb 2022 09:40:53 GMT

see this:

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/OpenVX-Vision-Image-Extension-API-Introduction-Basic-API/ta-p/1117280