[Beowulf] Clusters just got more important - AMD's roadmap
diep at xs4all.nl
Wed Feb 8 08:27:31 EST 2012
On Feb 8, 2012, at 2:13 PM, Peter Kjellström wrote:
>>> GPU line will continue
>>> also inside cpu's integrated. Total monopoly for intel for
>>> applications needing CPU's as it seems.
>> you seem to have missed AMD's main point, which HSA: the concept of
>> pushing x86 and GPU together to enable something higher-performing.
>> it's not a crazy idea, though pretty ambitious.
> The APU concept has a few interesting points but certainly also a
> few major
> problems (when comparing it to a cpu + stand alone gpu setup):
> * Memory bandwidth to all those FPUs
> * Power (CPUs in servers today max out around 120W with GPUs at
And the gpu's in those cpu's probably won't be doing double precision
Maybe they work at 16% the speed of a similar highend GPU. AMD
that for their cheap line gpu's which are already a lot better than
waht's gonna be put
in the cpu's as it seems.
Add to that that the gpu will have probably very limited amount of
So it'll be possibly a factor 200 slower than a 7990 gpu in double
which should be a teraflop or 2 nearly in double precision and
probably will eat around a 450
watt when crunching double precision code at all Processing Elements,
as the streamcores are
called in OpenCL.
I'm not sure why people at this mailing list are excited about
including gpu's in cpu's.
It's great for mobile phones and netbooks and cheapskate laptops and so.
From performance viewpoint ignore it.
> Either way we're in for an interesting future (as usual) :-)
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