[OT] Maximum performance on single processor ?
xyzzy at speakeasy.org
Fri Jun 20 14:07:59 EDT 2003
On Fri, 20 Jun 2003, Robert Myers wrote:
> You may have done better service to the readers of this list than you
> have to yourself, since the readers of this list are naturally inclined
> to think about the sort of question you have asked, and the answers have
> been interesting to read.
> The fact that you are asking the question, though, begs an answer that
> others have partially given: no plausible hardware purchase you can make
> will be a substitute for you or someone you are working with to get
I'm in agreement with what everyone else has said, if you're using an AthlonMP
2600 now, no < $20k single cpu system will give you a factor of 1000 speedup.
A factor of two is probably the best you can hope for.
But, the original question is still unanswered. If you had a non-parallel
scientific fortran code, what current system <$20k would run it the fastest?
Opteron, Itanium, Xeon, Athlon, Power4? Of course, I realize that the correct
answer is, "it depends." Things like memory access patterns, suitability for
SIMD instructions, floating point mix, etc. all make a big difference. But
without that knowledge, what would the best guess be?
Beowulf mailing list, Beowulf at beowulf.org
To change your subscription (digest mode or unsubscribe) visit http://www.beowulf.org/mailman/listinfo/beowulf
More information about the Beowulf