Article: Parallelism at HotPar 2010
By: hobold (hobold.delete@this.vectorizer.org), August 23, 2010 2:03 am
Room: Moderated Discussions
Steve Underwood (steveu@coppice.org) on 8/23/10 wrote:
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[...]
>If they start showing worthwhile gains for problems involving numerous
>short vectors (e.g. the endless 40 element vectors in the G.729 speech codec), I
>might start to get really interested in them.
>
Performance in terms of low latency is somewhat at odds with the general idea behind massively data parallel processors. I doubt that GPU designers will shift the balance towards lower latency. Their primary target is still graphics, with all its embarrassing parallelism. Real time audio codecs just don't have large chunks of data available to work with at any given point in time.
---------------------------
[...]
>If they start showing worthwhile gains for problems involving numerous
>short vectors (e.g. the endless 40 element vectors in the G.729 speech codec), I
>might start to get really interested in them.
>
Performance in terms of low latency is somewhat at odds with the general idea behind massively data parallel processors. I doubt that GPU designers will shift the balance towards lower latency. Their primary target is still graphics, with all its embarrassing parallelism. Real time audio codecs just don't have large chunks of data available to work with at any given point in time.