Gigahertz Benchmarks in a world of multicores
- To: mathgroup at smc.vnet.net
- Subject: [mg58856] Gigahertz Benchmarks in a world of multicores
- From: "Hobbs, Sylvia (DPH)" <Sylvia.Hobbs at state.ma.us>
- Date: Thu, 21 Jul 2005 03:08:02 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
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: [mg58856] [mg58835] Re: [mg58808] Re: [mg58786] "2p" in BenchmarkReport[] ? 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 >