I apologize I didn't have a chance to reply to your personal message earlier, 
but it's better to reply on the list.

>  Could anyone tell me if Avogadro supports GPU acceleration for force field 
> calculations? If so, is it strictly OpenCL-based, and what graphics cards 
> would you recommend?

At the moment, no. It doesn't even use OpenMP (for use of multiple processors) 
by default. Don't despair. For one, the underlying Open Babel library, which 
handles force field minimization has a pile of performance improvements which 
will be incorporated into Avogadro 1.1.

There's also a student working on parallelization / OpenCL and general 
algorithmic improvements this summer. I know there are many improvements coming.

> Also, I’m wondering about the feature list and timing for 2.0 – I know there 
> is 2.0 info on the web site somewhere, but I can’t find it!

I don't think we've discussed 2.0 at all yet. Version 1.1/1.2 will be released 
RealSoonNow. If you'd like to test a "beta" Windows build, you can find one 
here:
http://avogadro.openmolecules.net/pettt/Avogadro-1.1.0-pettt.zip

Marcus promised a 2.0 discussion once v1.1.0 was released.

Hope that helps,
-Geoff
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