http://www.equalizergraphics.com/documents/WhitePapers/MultiGPU.pdf

http://www.equalizergraphics.com/documentation/parallelOpenGLFAQ.html#multigpu

Q: How do OpenGL programs behave with multiple graphics cards on Mac OS X?
A: The OpenGL rendering happens on the card where most of the pixels of the window are located. Areas of the window located on other graphics cards are copied from the main renderer.

Q: How to I address a specific graphics card on Mac OS X (AGL)?
A: OS X 10.4 and earlier: Use the handle obtained by DMGetGDeviceByDisplayID for .
A: OS X 10.5: Use the display mask returned by CGDisplayIDToOpenGLDisplayMask as the value for the AGL_DISPLAY_MASK pixel format attribute.

I wonder what’s the current status of multiple GPU/windows on MacOsx in Equalizer, as I have hard time selecting GPU or even setting two fullscreen window in the same program. (as MAcOsx doesn’t update it’s driver often enough, the opengl extension about gpu affinity doesn’t exists there…)

Just dropping you a note about an upcoming multicore course at MIT. Maybe you, your network, or your readers might be interested.

Thanks

Tavish

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Multicore Programming
Location: MIT Campus | Cambridge, MA
Dates: July 20-24, 2009
Application Deadline: June 19, 2009

Multicores are bringing about a paradigm shift in programming. This course exposes students to fundamental issues in the design of concurrent programs and to the techniques necessary to make effective use of multicore machines. It combines lectures and classwork to gradually enhance students’ intuition and technique.

Learn more about the course and register online at:
http://web.mit.edu/professional/short-programs/courses/multicore_programming.html

Bring a colleague and you both save 10%
Just register by June 19 and email shortprograms@mit.edu with your name, the name of your colleague, and mention Multicore10% to receive the 10% discount.

Please pass the word to your colleagues and encourage them to register soon. 

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Tavish