Dear Ross and Scott,
thank you very much for your complex info !
So let's just hope that OpenCL will mature soon :))
Best wishes,
Marek
Dne Thu, 13 May 2010 18:45:37 +0200 Ross Walker <ross.rosswalker.co.uk>
napsal/-a:
> Hi Marek,
>
>> if I understood well, at present only NVIDIA GPUs are supported
>> for Amber 11 calculations.
>>
>> Is there any hope that in close future also support for ATI GPUs will
>> be implemented ?
>
> Unfortunately not. It is a sad case of economics here. NVIDIA have been
> extremely generous providing hardware for development and testing and
> more
> importantly significant personnel time to work on this project. ATI
> unfortunately have not and hence why things are NVIDIA only. Developing
> an
> ATI solution would require, most likely converting to OpenCL. Something
> that
> is actually not as useful or nice to use as CUDA since, from my
> understanding, the motivation behind OpenCL is largely for supporting
> embedded devices, smart phones, tablets etc, since this is where the
> market
> is moving these days, and the HPC side of things is prominent but
> secondary
> in the design specs here.
>
> This is not insurmountable but would require some form of funding for
> development. Supporting both ATI and NVIDIA cards equally would likely
> make
> things less attractive for either party and so funding would need to come
> from a more neutral source such as NSF, NIH etc. It might also make
> access
> to NDA'd future technology from either party more tricky to obtain
> although
> this is certainly possible, it just involves more lawyers and paperwork.
> :-(
>
> If longer term grants can be secured to fully fund this and ongoing
> development then there will most likely be an ATI (and Larraby if Intel
> ever
> gets it off the drawing board) supported version but until then there
> are no
> firm plans for this.
>
> Of course if someone writes a cuda compiler for ATI (not too outrageous
> an
> idea!) then it would be easier...
>
> All the best
> Ross
>
> /\
> \/
> |\oss Walker
>
> | Assistant Research Professor |
> | San Diego Supercomputer Center |
> | Tel: +1 858 822 0854 | EMail:- ross.rosswalker.co.uk |
> | http://www.rosswalker.co.uk | http://www.wmd-lab.org/ |
>
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Received on Sat May 15 2010 - 05:00:03 PDT
