Bug 89691

Summary: Beignet does not work on i7-3610QE
Product: Beignet Reporter: tomasz.pasternak
Component: BeignetAssignee: Zhigang Gong <zhigang.gong>
Status: RESOLVED NOTABUG QA Contact:
Severity: normal    
Priority: medium    
Version: unspecified   
Hardware: Other   
OS: Linux (All)   
Whiteboard:
i915 platform: i915 features:

Description tomasz.pasternak 2015-03-20 13:33:41 UTC 
Almost all features of Beignet does nowt work on i7-3610QE processor's GPU.

The name of the GPU is Intel HD 4000. clDeviceInfo prints it's name as "Intel(R) HD Graphics IvyBridge M GT2" 
Only 21 unit tests pass (out of 701). 

Even the simplest "Hello World" example (like this one http://www.fixstars.com/en/opencl/book/OpenCLProgrammingBook/first-opencl-program/) does not work.

Tested on Ubuntu 14.04.2 LTS, LLVM 3.4 (from Ubuntu's repository).

Tested on commit acfc2a2799b9cb4153b7581f66a78b046fbb97ec
Comment 1 Zhigang Gong 2015-03-20 14:24:26 UTC 
(In reply to Tomasz Pasternak from comment #0)
> Almost all features of Beignet does nowt work on i7-3610QE processor's GPU.
> 
> The name of the GPU is Intel HD 4000. clDeviceInfo prints it's name as
> "Intel(R) HD Graphics IvyBridge M GT2" 
> Only 21 unit tests pass (out of 701). 
> 
> Even the simplest "Hello World" example (like this one
> http://www.fixstars.com/en/opencl/book/OpenCLProgrammingBook/first-opencl-
> program/) does not work.
> 
> Tested on Ubuntu 14.04.2 LTS, LLVM 3.4 (from Ubuntu's repository).
> 
> Tested on commit acfc2a2799b9cb4153b7581f66a78b046fbb97ec

You can check the known issues in the README.md. If you are using linux kernel 3.15/16, then you may need to disable the command parser as below:

 # echo 0 > /sys/module/i915/parameters/enable_cmd_parser
Comment 2 tomasz.pasternak 2015-03-20 14:55:35 UTC 
Ok, thanks. I'm sorry for the confusion.
Comment 3 Zhigang Gong 2015-03-20 15:06:51 UTC 
(In reply to Tomasz Pasternak from comment #2)
> Ok, thanks. I'm sorry for the confusion.

That's OK. Does it work for you?
Comment 4 tomasz.pasternak 2015-03-20 15:07:55 UTC 
Yes, after setting enable_cmd_parser to 0 it works.
Comment 5 Zhigang Gong 2015-03-20 15:11:04 UTC 
Another solution is to upgrade to a newer kernel version.
Anyway, I will close this bug.

Thanks for reporting any beignet issue.

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