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Re: Re: Gigahertz Benchmarks in a world of multicores

• To: mathgroup at smc.vnet.net
• Subject: [mg59002] Re: [mg58946] Re: Gigahertz Benchmarks in a world of multicores
• From: "Hobbs, Sylvia (DPH)" <Sylvia.Hobbs at state.ma.us>
• Date: Tue, 26 Jul 2005 04:02:51 -0400 (EDT)
• Sender: owner-wri-mathgroup at wolfram.com

Lots of benchmarks, as Yasvir's laptop also revealed, have shown the lower
gig Pentium M to be a faster single-chip, say, a 3-gig M is faster than a 5
Gig Pentium 4. However Heath, would one say POWERFUL? I would say that the
Pentium M is LESS Nietzschean, and almost dialectical (in the classical
Hegelian sense) since its processing efficiency is based on low frequency
and voltage which responds to mobile tool design needs. 

 

Sylvia Hobbs

 
-----Original Message-----
From: Heath Gerhardt [mailto:heathgerhardt at hotmail.com] 
To: mathgroup at smc.vnet.net
Subject: [mg59002] [mg58946] Re: Gigahertz Benchmarks in a world of multicores

 

 

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: [mg59002] [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

>>

> 

>