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Proof Of Concept: Open-Source Multi-GPU Rendering!
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| Now that David Airlie's vga_switcheroo has
| went upstream in the Linux 2.6.34 kernel that
| provides hybrid graphics support and delayed
| GPU switching, David went on to look for
| something new to work on in his downtime when
| not busy with tasks at Red Hat. This new work
| is on GPU offloading / multi-GPU rendering.
|
| Last month NVIDIA introduced Optimus as a way
| for dual-GPU notebooks to seamlessly switch
| between the two GPUs but also to offload the
| rendering workload to the other graphics
| processor. This is somewhat similar to
| NVIDIA's SLI and ATI/AMD's CrossFire for
| splitting the rendering workload across
| multiple GPUs, but it has its differences.
| David ended up developing a proof-of-concept
| similar to NVIDIA's Optimus that he is calling
| "Prime" and it works with Intel and ATI GPUs.
`----
http://www.phoronix.com/scan.php?page=news_item&px=ODA1OQ
Deferrable functions, kernel tasklets, and work queues
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| For high-frequency threaded operations, the
| Linux kernel provides tasklets and work
| queues. Tasklets and work queues implement
| deferrable functionality and replace the older
| bottom-half mechanism for drivers. This
| article explores the use of tasklets and work
| queues in the kernel and shows you how to
| build deferrable functions with these APIs.
`----
http://www.ibm.com/developerworks/linux/library/l-tasklets/index.html
How to compile the Linux kernel
,----[ Quote ]
| Do you want to remove bloat from your Linux
| installation? Are you looking to enable extra
| features that aren't provided by your distro?
| Fancy trying some of the cutting-edge patches
| doing the rounds? You'll need to recompile
| your kernel, and while it might look like
| black magic if you've never done it before,
| it's actually pretty straightforward. Read on
| for everything you need to know...
`----
http://www.tuxradar.com/content/how-compile-linux-kernel
Related:
Open-Source 3D Success For Radeon RV770
,----[ Quote ]
| We have just found out from AMD's John Bridgman that Alex Deucher, one of
| their open-source engineers, has today successfully rendered its first
| hardware-accelerated triangle on the Radeon HD 4800 series (RV770). In other
| words, the first open-source 3D milestone for this latest graphics card
| family from ATI!
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http://www.phoronix.com/scan.php?page=news_item&px=NjY3OQ
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