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http://www.macnn.com/articles/02/01/11/mac.cluster/

Mac cluster achieves 233 Gigaflops

updated 01:55 pm EST, Fri January 11, 2002

 
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Researchers and staff at USC and UCLA have achieved a milestone for cluster computing and the Macintosh platform, achieving 233 Gigaflops on a Macintosh cluster. Using AppleSeed software, a project begun by UCLA physics researchers in 1998, researchers found no evidence for an intrinsic limit to the size of a Macintosh cluster, indicating that "Mac clusters have excellent potential scalability." The tested environment included 56 dual-processor G4/533s and 20 dual-processor G4/450s connected via a large 100BaseT switch.


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  1. berserkintosh

    Fresh-Faced Recruit

    Joined: Jul 2003

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    01/11, 05:27pm | report spam | Reply |

    mmmmm

    aaaaaaggnngghhdroooolll.,.,.,. guess peecees are cluster fukked

  1. rogerbca

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    01/11, 05:40pm | report spam | Reply | delete

    interesting numbers

    Let's see...they claim they have 112 + 40 = 152 processors in their cluster, and it gets 233 Gflops. My clunky old G4 400 can get about .5 Gflop.

    Either their setup scales amazingly well, or I call Shenanigans! :-)

  1. bdusen

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    01/11, 05:41pm | report spam | Reply |

    hmmm

    Does this mean resizing a window in Internet Explorer for Mac OS X would only have a 3 second lag? :o)

  1. mrfears

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    01/11, 05:51pm | report spam | Reply |

    AppleSeed presentation

    Anyone in the Arizona area interested in this research can attend a free presentation at Arizona State University. Dean Dauger (UCLA physics) will be presenting AppleSeed to the ASU Mac User Group on Tuesday at 10 am.

    more info: http://www.asu.edu/asumac

  1. justinsane

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    01/11, 05:52pm | report spam | Reply | delete

    re: interesting numbers

    Err, rogerbca, read the article again--many of the systems were *DUAL* CPU systems. Now recalculate...

  1. rogerbca

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    01/11, 05:59pm | report spam | Reply | delete

    re: interesting numbers

    Err, justinsane, I *did* take into account the fact they were dual processors. 56 * 2 + 20 * 2 = 152, assuming base 10 numbers. Another interesting note is they were using OS 9.2.1, and not X.

  1. rogerbca

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    01/11, 06:01pm | report spam | Reply | delete

    re: interesting numbers

    Err, justinsane, I *did* take into account the fact they were dual processors. 56 * 2 + 20 * 2 = 152, assuming base 10 numbers. Another interesting note is they were using OS 9.2.1, and not X.

  1. noverflow

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    01/11, 08:15pm | report spam | Reply |

    g4 tiPB

    i get almost 2gflops on my 500 mhz Ti PB and i get over 3gf on my 867... the dual 800 does over 6... you have to understand this is using AltiVec

    http://www.barefeats.com/pm01.html

    using this program the dual 533 does 3.8

  1. scaught

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    Joined: Jan 2001

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    01/12, 07:42am | report spam | Reply |

    d00dzz!!

    my ahtlon is stil wau miore 1337 thdn you're mmmacs!!11

  1. bobartig

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    01/12, 10:24am | report spam | Reply |

    Speaking of athlons...

    speaking of athlons, this has interesting implications for comparing cross platform performance. Lexington KY's KLAT2 beowulf cluster (basically 64x700Mhz athlon boxen with really nice networking), only mustered a maximum performance of 64 GFLOP, or roughly a 1 GFLOP per 700 Mhz athlon. UCLA and USC's Appleseed cluster had an average processor speed of 511Mhz G4, performing at just about 1.5 GFLOP's. Assuming a current value of $2000 per PMG4/533DP system, the $/GFLOP ratio is surprisingly low. That, and assuming linear scaling of Mhz vs performance (which isn't true, but both AMD and G4's scale magnificently compared to P4 systems), G4's have roughly twice the floating point performance per Mhz than Athlon systems in clustering environments. Go Altivec!!

    Also, that 64 node athlon beowulf cluster ranked 150th in Jack Dongarra's list of the 500 fastest supercomputers in the world. wonder where this G4 cluster comes in.

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