amd opteron status re. gmp
Tue, 26 Aug 2003 08:59:19 +1000
Walter Stephan <firstname.lastname@example.org> writes:
> to run either linux
Presumably you mean gnu+linux, it's unlikely gmp can do much with only
> (with the integer gmp ops currently being the bottleneck running on an
There's some profiler support in the x86 asm code to help you spot
where it's spending time. The next release will have support for gcc
-finstrument-functions too, for higher resolution.
> Also, does anyone have any idea of a possible timeline for specialized opteron
> support in gmp?
Torbjorn is hacking at some code right now. It'll be in the next
> Even if it currently only gives performance equal to the
> Athlon, if I can count on a significant speedup in a few month's time that
> could strongly sway me to go for the opteron.
The prospect is for cycle counts roughly the same as athlon, but in
64-bits of course that's 2x as much adding or 4x as much multiplying.
On the whole it looks like a nice chip, but how it works out on the
price versus grunt scale I don't know.