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GPU applications :
OpenCL on Intel HD Graphics 4000 not recognized
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Harri Liljeroos Send message Joined: 29 May 99 Posts: 4096 Credit: 85,281,665 RAC: 126 |
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 Intel® 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? |
BilBg Send message Joined: 27 May 07 Posts: 3720 Credit: 9,385,827 RAC: 0 |
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 Â - ALF - "Find out what you don't do well ..... then don't do it!" :) Â |
Harri Liljeroos Send message Joined: 29 May 99 Posts: 4096 Credit: 85,281,665 RAC: 126 |
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. |
BilBg Send message Joined: 27 May 07 Posts: 3720 Credit: 9,385,827 RAC: 0 |
... 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) Â - ALF - "Find out what you don't do well ..... then don't do it!" :) Â |
Harri Liljeroos Send message Joined: 29 May 99 Posts: 4096 Credit: 85,281,665 RAC: 126 |
... but when I connected the monitor to it, it started working... Will post to the thread, others have had similar problems. Thanks for your advice. |
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