iMX8m Nano GPU GC7000UL slow

[miguel_deprado]

Hi,

I have an iMX8m Nano flashed with Yocto image: 

repo init -u https://source.codeaurora.org/external/imx/imx-manifest -b imx-linux-zeus -m imx-5.4.47-2.2.0.xmlimx-manifest - i.MX Release Manifest

DISTRO=fsl-imx-xwayland MACHINE=imx8mnevk source imx-setup-release.sh -b build_nano

I've tested a openCL benchmark on the board and I'm only getting 2 GLOPs compared to the 9.6 GLOPs in the board specifications. I've performed the same test on the quad-max board, getting 20 GLOPs compared to the 32 theoretical GLOPs. As a rule of thumb, I should get around 6 GLOPs on the iMX8m Nano based on the quad-max results.

I can see that the freq of the GPU core and shader is well set to 600 MHz, but the performance is low.

Is there any configurations that I might be missing?

Thanks

[ItamarE]

Any news about this?

Trying to operate the IMX8-Nano GPU.

[miguel_deprado]

Hi,

Any update on this issue?

Best regards

[Bio_TICFSL]

Hello Miguel,

Please share your sample code in order to check it.

Regards

[miguel_deprado]

Here it is the benchmark: https://github.com/ekondis/mixbench

I have followed the openCL benchmark. The results come from the mixbench-ocl-ro binary.

The mixbench-ocl-alt binary runs on the imx8 quad-max but does not in the imx8m nano.

Thanks for your time

PD: I'd be interested to know whether you have any Vulkan benchmark to test on my machine.

[miguel_deprado]

Hi,

no news?

Best regards