minimum linux kernel version needed to reproduce the vtune amplifier result in sample_video_stabilizatioin_user_guide

[KLim4]

Hi,

I uses linux kernel 4.14.20, as suggested, to get Intel Computer Vision SDK working in my centos box. I tried to reproduce the vtune amplifier profiling result as shown in sample_video_stabilization_user_guide.pdf (March 2017) by following the guideline to install Intel Media Server Studio Essential 2018 R1.

I'm able to configure and install libdrm and libva without any problem but stuck with patching the linux kernel for the intel kernel mode driver (kmd). The provided patches for linux kernel is version 4.4.111 which is older than the 4.14.20.

Is there any patch for linux kernel 4.14.20? What can I do next?

[KLim4]

it has been a week since i posted the message. please advice how to proceed?

[Seunghyuk_P_Intel]

Hi Kim,

Sorry for the late answer.

I think you are using CentOS, right?

Then, you can just run "install_sdk_CentOS.sh" in /SDK2018Production16.8/CentOS_7.4/installation_scripts_centos_16.8-69021.tar.

Looks like, you are following "Generic" installation step, which is not for CentOS but for Ubuntu and other linux.

And, we have new version of CVSDK -> OpenVINO. (https://software.intel.com/en-us/openvino-toolkit)

Please use this version for CVSDK.

Regards,

Peter.

[KLim4]

i had a quick check with the installation guide of OpenVINO https://software.intel.com/en-us/articles/OpenVINO-Install-Linux ;and it stated to upgrade to Linux kernel 4.14

please advice if i will be again having the same issue to install vtune amplifier which only patch of Linux kernel 4.4.111 is provided?

[Seunghyuk_P_Intel]

Hi Kim,

OpenVINO supports 2 different version of OpenCL drivers.

One is NEO_OpenCL driver which is open source base, which needs 4.14 kernel.

The other is Intel opencl driver, which needs 4.4.111 kernel.

So, if you install MSS in CentOS, it will install Intel OpenCL driver.

Probably, it will work with vtune and OpenVINO.

If you have any issue with that, please let us know.

Regards,

Peter.

[KLim4]

Hi Peter,

Is that mean I don't have to update to kernel 4.14?

[Seunghyuk_P_Intel]

Hi Kim,

Right.

Once if you install MSS successfully in CentOS, it will use Intel OpenCL driver.

And once you have OpenCL driver, OpenVINO will use it.

Only when you install NEO_OpenCL driver, you should upgrade kernel to 4.14.

Regards,

Peter.

[Mark_L_Intel1]

Hi Kim,

Peter is right for the OpenVINO and OpenCL driver dependency, please follow his direction for OpenVINO installations.

I just try to clarify Media Server Studio dependency to the Linux kernel, here is the basic:

1. If you install from our release package, you should use kernel 4.4 and apply the patches. Difference release might have little bit different kernel 4.4 versions to patch, you should check the release notes or getting started guide to confirm the exact version.
2. If you want to use the latest kernel, we have a solution of building open source media stack to support kernel 4.14.16 and above. But you have to build the media stack by yourself with the following article,
   https://software.intel.com/en-us/articles/build-and-debug-open-source-media-stack
   Note: this method doesn't install any other Intel tools, like OpenCL, you have to install it in a separate package

Let me know if this answers your questions.

Mark

[Dmitry_B_Intel1]

Hi Kim, 

actually, OpenVX video stabalization sample doesn't require MSS installation. VTune amplifier need to be installed to reproduce profiling results mentioned in the document. 

Thanks

Dmitry