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Re: Gigahertz Benchmarks in a world of multicores

  • To: mathgroup at smc.vnet.net
  • Subject: [mg58946] Re: Gigahertz Benchmarks in a world of multicores
  • From: Heath Gerhardt <heathgerhardt at hotmail.com>
  • Date: Sun, 24 Jul 2005 01:22:06 -0400 (EDT)
  • Organization: Department of Computer Science, University of Calgary
  • References: <dbnias$hh7$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

The Pentium M is actually more powerful than both the Pentium 4 and the 
Athlon 64:

http://www.tomshardware.com/cpu/20050525/index.html

Heath

Hobbs, Sylvia (DPH) wrote:
> Hi!
> 
> Yes Yasvir, definitely an amusing epiphany for your little laptop. Sounds
> like a Tortoise and Hare matrix transposition race. Gigahertz benchmark
> races are going to become stranger and stranger (or become obsolescent),
> what with the new Pentium D true multicore having two Pentium 4 processor
> cores on a single die (or rather multichip). Software needs to progress to
> exploit multicores to notice a difference. Also, won't we live in an even
> more exciting world when the new Longhorn Operating System has her
> Debutante's Ball in Fall 2006?
> 
> Sylvia Hobbs
> 
> PS: If your cat is always getting near my computer screen, especially when
> you are transposing matrices, consider this website for how to clean your
> monitor: http://www.legrady.hu/sc.html
> 
> 
> 
> -----Original Message-----
> From: Yasvir A. Tesiram [mailto:tesiramy at omrf.ouhsc.edu] 
To: mathgroup at smc.vnet.net
> Subject: [mg58946]  ?
> 
> Hi,
> This Benchmark test has had me intrigued for some time, especially in 
> Linux systems where system libraries change continuously. And I was 
> especially amused when my little 2.0GHz Pentium M laptop (Debian 
> Linux kernel 2.6.12) outdid a Redhat 9 Pentium4 3.2GHz and the Athlon 64 
> 3200+ (Suse Linux) when it came to Transposing matrices. I guess thats 
> where the buck stopped, because it was thoroughly thrashed on all other 
> accounts.
> 
> Cheers
> Yas
> 
> 
> On Tue, 19 Jul 2005, Murray Eisenberg wrote:
> 
> 
>>That's plausible -- but a bit surprising to me given benchmark results
>>for my machine vs. some of the reference systems:
>>
>>        2p 2.4 GHz Opteron 250 (Sun Solaris 10):            1.45
>>mine -> 3.2 GHz Pentium 4 Extreme Edition (Windows XP Pro): 1.42
>>        2p 2.5 GHz G5 Apple Mac OS 10.41):                  1.15
>>
>>I guess raw processor speed really makes a difference with these
> 
> benchmarks.
> 
>>
>>Sseziwa Mukasa wrote:
>>
>>>My guess would be dual processor.  With the option for more, eg 4p  for
>>>a quad processor.
>>>
>>>On Jul 18, 2005, at 3:21 AM, Murray Eisenberg wrote:
>>>
>>>
>>>>Mathematica's version 5.2 StandardPackages Utilities`Benchmark`
>>>>identifies several of the reference systems as "2p" -- e.g., "2p  1.4
> 
> GHz
> 
>>>>Itanium 2", "2p 2.5 GHz G5".
>>>>
>>>>What does the "2p" mean?
>>>>--
>>>>Murray Eisenberg                     murray at math.umass.edu
>>>>Mathematics & Statistics Dept.
>>>>Lederle Graduate Research Tower      phone 413 549-1020 (H)
>>>>University of Massachusetts                413 545-2859 (W)
>>>>710 North Pleasant Street            fax   413 545-1801
>>>>Amherst, MA 01003-9305
>>>>
>>>>
>>>
>>>
>>-- 
>>Murray Eisenberg                     murray at math.umass.edu
>>Mathematics & Statistics Dept.
>>Lederle Graduate Research Tower      phone 413 549-1020 (H)
>>University of Massachusetts                413 545-2859 (W)
>>710 North Pleasant Street            fax   413 545-1801
>>Amherst, MA 01003-9305
>>
> 
> 


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