Alienware laptop with two gpu's - can I use both?


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Questions and Answers : GPU applications : Alienware laptop with two gpu's - can I use both?

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jason.warren_WA2LJW
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Message 1477617 - Posted: 15 Feb 2014, 15:49:25 UTC

My laptop has both an integrated Intel GPU and a PCI-attached Nvidia GTX 755m GPU. Is there a way to use both simultaneously?

Ulrich Metzner
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Message 1477642 - Posted: 15 Feb 2014, 17:22:04 UTC - in response to Message 1477617.
Last modified: 15 Feb 2014, 17:28:16 UTC

Yes you can! ;)
Take a look here:
http://boinc.berkeley.edu/wiki/Client_configuration
Look for the flag "use_all_gpus" and set it to "1".

I've done the same on this Computer:
http://setiathome.berkeley.edu/show_host_detail.php?hostid=7068094

If it is this computer
http://setiathome.berkeley.edu/show_host_detail.php?hostid=7212726
you are talking about, you'll have to use the intel GPU as primary device or it would not be recognized by BOINC.

[edit]
...and be sure to use an intel driver, that is OpenCL 1.2 capable.
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Message 1477654 - Posted: 15 Feb 2014, 17:38:06 UTC - in response to Message 1477642.

Take a look here:
http://boinc.berkeley.edu/wiki/Client_configuration
Look for the flag "use_all_gpus" and set it to "1".

I thought that <use_all_gpus> was only needed when the user had different strengths of the same brand of GPU, e.g. different models of Nvidia, different models of AMD, but not when he had one Nvidia, one AMD. Or in this case, one Intel, one Nvidia.

All it requires here is that the correct drivers are installed.
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Fighting for the correct use of the apostrophe, together with Weird Al Yankovic

Questions and Answers : GPU applications : Alienware laptop with two gpu's - can I use both?

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