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Hi all,
After a fresh install of Ubuntu 14.04 + Intel OpenCL SDK 2016 R2 , I still cannot list any OpenCL platform. The clinfo command returns:
I: ICD loader reports no usable platforms
Setup details follow:
CPU: Intel® Core™ i5-5200U CPU @ 2.20GHz × 4
GPU: Intel® HD Graphics 5500 (Broadwell GT2)
OpenCL SDK: installed from the archive named intel_sdk_for_opencl_2016_ubuntu_6.2.0.1760_x64.tgz . After install I do have files under /opt/intel/intel-opencl-1.2-6.2.0.1760
The "uname -a" command returns: Linux user-HP-250-G4-Notebook-PC 4.4.0-42-generic #62~14.04.1-Ubuntu SMP Fri Oct 7 23:15:48 UTC 2016 x86_64 x86_64 x86_64 GNU/Linux
NOTE: My ultimate goal is to obtain, on this hardware, a Linux-based OpenCL 2.0 setup with support for SVM fine grained buffer and SVM atomics. If this setup requires something else than Ubuntu, I can install any other distribution. Otherwise, if you know that such a setup cannot be obtained at this time with this hardware, please let me know.
Many thanks.
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You should be able to get OpenCL to work in Ubuntu 14.04 on this machine, but you will need a driver in addition to the SDK. There are two ways to get this driver:
From a Media Server Studio Generic install:
- Download Media Server Studio 2017 community edition: https://software.intel.com/en-us/intel-media-server-studio
- Use the script from this article to install: https://software.intel.com/en-us/articles/how-to-setup-media-server-studio-on-secondary-os-of-linux
(Or you could use the Gold OS, CentOS 7.2, which has a more automated install which only requires updating the i915 module instead of recompiling the entire kernel.)
From the standalone OpenCL 2.0 driver package
- download from here: https://software.intel.com/en-us/articles/opencl-drivers
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Thanks Jeffrey for the pointers.
I installed the driver from the Media Server Studio, compiling the patched Linux kernel etc. Now OpenCL 2.0 works, but I have no SVM fine grain support. The driver version is 16.5-55964 , the kernel version returned by 'uname -r' is " 4.4.0.intel.r16.5" , so it seems that the installation of the patched kernel did worked.
Can someone please tell me if it's possible to get the following features :
- OpenCL 2.0
- SVM fine grained buffers
- SVM atomics
on a machine with the following spec:
- CPU: Intel® Core™ i5-5200U CPU @ 2.20GHz × 4
- GPU: Intel® HD Graphics 5500 (Broadwell GT2)
Regarding the OS, any flavour of Linux is OK.
Thanks!

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