openCL Ubuntu?

[Thanh-Binh]

Do you know which openCL SW will be installed in Ubuntu for working with your SW?

[ddigiorg]

Hi, you need 3 things: headers, libraries, and drivers. I don't use Ubuntu, but I believe the headers and libraries are in the "ocl-icd-opencl-dev" package. The right drivers depend on whether you are using a Nvidia, AMD, or Intel device.

[Thanh-Binh]

thanks

[Thanh-Binh]

In my laptop I have an internal HP graphic and a NVIDIA Grafik Card. OgmaNeo runs with NVIDIA Card but I really do not know why SC select internal card with OpenCL.
Do you know how to change it to NVIDIA Card?
Thanks

[ddigiorg]

It might have something to do with how I select compute devices, which is definitely not handled as well as Ogma(who are much more competent than me, haha). I just select the first on in a list of all devices. Take a look "compute-system.cpp" on at line 49:

_device = allDevices.front();

Perhaps you need to change it to:

_device = allDevices[1];

[Thanh-Binh]

It is not exact but helpfull.
In "computer-system.cpp" at the line
https://github.com/ddigiorg/simple-cortex/blob/master/source/compute/compute-system.cpp#L23
we have to change it into

_platform = allPlatforms.back();

It will work correctly....