OpenCL on Intel HD Graphics 4000 not recognized


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Questions and Answers : GPU applications : OpenCL on Intel HD Graphics 4000 not recognized

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Harri Liljeroos
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Message 1368798 - Posted: 17 May 2013, 7:42:54 UTC

Hi,
I am trying to get OpenCL to work on my Intel GPU. The CPU is I7-3770 on a WIn 7 Enterprise 64 bit. So far I have done the following:
- enabled the internal graphics in the BIOS
- allocated to it 512 MB memory in the BIOS
- installed the latest driver for it (9.18.10.3071)
- installed the IntelĀ® SDK for OpenCL* Applications 2013 (64 bit)

The computer also has a Nvidia GTX 650 Ti where the monitor is attached to. It runs the Lunatics CUDA application for MB and the OpenCL application for AP. GPU-Z sees both graphics cards but indicates for the Intel HD Graphics 4000 that no OpenCL is available (shows 0 MB memory for it though). Windows device manager indicates Intel HD Graphics working properly. Boinc is 64 bit version of 7.0.64 and does not find the Intel card.

I have studied the Intel SDK installation notes and checked:
- INTELOCLSDKROOT environment variable points to correct folder
- registry entries mentioned in installation notes are there with correct values

I have Raistmers AP application downloaded but not yet installed. Propably no point while OpenCL support is missing.

Can somebody help, what I am doing wrong or is there still something missing?
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Message 1368812 - Posted: 17 May 2013, 9:14:21 UTC - in response to Message 1368798.
Last modified: 17 May 2013, 9:36:07 UTC


What GPU Caps Viewer say:
http://www.ozone3d.net/gpu_caps_viewer/

If it detects OpenCL on Intel GPU try to run the OpenCL tests ('demos') in it.

Try to (temporarily) attach (to the Intel GPU) a monitor or a 'dummy plug':
http://www.techpowerup.com/forums/showpost.php?p=1233763&postcount=10
http://forums.bit-tech.net/showthread.php?t=167450


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Harri Liljeroos
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Message 1368905 - Posted: 17 May 2013, 13:58:35 UTC - in response to Message 1368812.

The 3D Caps Viewer didn't first find the Intel Graphics at all, but when I connected the monitor to it, it started working. Now also GPU-Z and Boinc says Intel has OpenCL. GPU-Z doesn't find Cuda on my Nvidia card anymore but Boinc sees it and crunches away with Nvidia.

I installed the Intel application and Boinc is requesting work for it from Seti but haven't received any. Reply is "no tasks available", only for ATI/AMD GPU.

Thank you for your help.
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Message 1369530 - Posted: 19 May 2013, 4:12:37 UTC - in response to Message 1368905.

... but when I connected the monitor to it, it started working...

So Intel drivers have the same problem as Nvidia a few years ago (drivers at that time did not detect computing capabilities when no monitor is connected. So people invented 'dummy plug')


I installed the Intel application and Boinc is requesting work for it from Seti but haven't received any. Reply is "no tasks available", only for ATI/AMD GPU.

Ask this in "Open beta for OpenCL AstroPulse for Intel GPUs started" so people which use this app can give you advice what to do:
http://setiathome.berkeley.edu/forum_thread.php?id=70717

Astropulse tasks are not always available but since you have no problems to get them for CPU and NVIDIA GPU (and all the tasks are the same):
http://setiathome.berkeley.edu/results.php?hostid=6969332&offset=0&show_names=0&state=0&appid=12

... probably there is something 'special' to do (OpenCL apps for Intel GPUs is 'new uncharted territory' for BOINC)


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Harri Liljeroos
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Message 1369915 - Posted: 20 May 2013, 7:01:41 UTC - in response to Message 1369530.

... but when I connected the monitor to it, it started working...

So Intel drivers have the same problem as Nvidia a few years ago (drivers at that time did not detect computing capabilities when no monitor is connected. So people invented 'dummy plug')


I installed the Intel application and Boinc is requesting work for it from Seti but haven't received any. Reply is "no tasks available", only for ATI/AMD GPU.

Ask this in "Open beta for OpenCL AstroPulse for Intel GPUs started" so people which use this app can give you advice what to do:
http://setiathome.berkeley.edu/forum_thread.php?id=70717

Astropulse tasks are not always available but since you have no problems to get them for CPU and NVIDIA GPU (and all the tasks are the same):
http://setiathome.berkeley.edu/results.php?hostid=6969332&offset=0&show_names=0&state=0&appid=12

... probably there is something 'special' to do (OpenCL apps for Intel GPUs is 'new uncharted territory' for BOINC)



Will post to the thread, others have had similar problems. Thanks for your advice.

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Questions and Answers : GPU applications : OpenCL on Intel HD Graphics 4000 not recognized

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