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Domain: virginia.edu

Stories and comments across the archive that link to virginia.edu.

Comments · 959

  1. Re:This is sort of what the grid projects are doin by Greg+Lindahl · · Score: 1 · on All-Purpose Distributed Computing

    And there's always the Legion Project, which is the successor to research (Hydra) started in the late 1960s.

  2. Supercomputers by Detritus · · Score: 1 · on U.S. Eases Computer Export Controls
    You don't build a supercomputer out of commodity PC parts, at least not the sort of supercomputer made by Cray/SGI and other vendors.

    A high speed CPU is nice but a balanced system needs high bandwidth I/O and memory systems. Take a look at these benchmarks of memory bandwidth.

    Your typical high performance PC has 200-300 MB/s of memory bandwidth. A NEC SX-4 has over 400 GB/s of memory bandwidth.

  3. CGI goodness by OWJones · · Score: 1 · on The Anti-Linux-IPO Howto

    The Anti-Linux CGI
    Yay for PERL and cut and paste. Enjoy.

  4. Alphas and I/O by d^2b · · Score: 1 · on 1GHz Alphas
    I have to take exception to your friends idea that Alphas are no good at I/OO. First of all, it doesn't make sense to talk about the memory bandwidth of a processor, and second of all, recent Alpha systems based on a crossbar architecture are very good. Looking at the Stream Benchmark (which is presumably relatively unbiased, since it is by a fellow at SGI) e.g. the DS20 is quite competetive with the latest from HP and SGI
    • Compaq DS20 1077 MB/s
    • HP_N4000 760.0 MB/s
    • SGI_Octane_300 375.3 MB/s
    Mind you, the big SGI's do scale astoundingly; its not clear that Decpaq (or anybody else) has anything that competes with a 128 processor Origin_2000 yet. Wildfire will supposedly blow our collective minds, but as yet is only running (I think) 8 processors in the labs.
    Your friendly neighbourhood alpha booster.
  5. What about the cameras by Evil+Willow · · Score: 1 · on Logitech does the Right Thing

    I just picked up a refurbished Connectix QuickCam from Computer Geeks for $39. It plugs into the parallel port and I found drivers for linux which work quite nicely. (I recommend cqcam).

  6. Sobering reminder by tklancer · · Score: 1 · on Geeks in Rolling Stone

    Not just that, but they should check out Working Class Whites. I came across it when doing some research for a class, and it changed my perceptions on the term "white trash". I used to use it, but now I cringe at it. some of the website is, IMO, scapegoating, but most of it is very justifiable complaining... The term (and others) have been used to denigrate the poor for too long, and I'm making a concerted effort to look on those words like I would any other racist term.

    (Still looking for a job...)

  7. Enough chatter, why you not find this? by Anonymous Coward · · Score: 0 · on Ask Slashdot: How Powerful is Your Computer?
    OK, some good ideas up there. Now let's pretend we are trained arachnids and check the Web...

    Featuring: The Performance Database Server. Start with the bottom of the Dhrystone results. Then find the older Whetstone database.

    STREAM graph of Memory speed vs MFLOPS. (The STREAM standard results has speed numbers. The CPU Info Center has assorted historical CPU info. Here is Intel's Moore's Law graph. Here is a computer timeline. Here are the top 500 supercomputers since 1983.

  8. Enough chatter, why you not find this? by Anonymous Coward · · Score: 0 · on Ask Slashdot: How Powerful is Your Computer?
    OK, some good ideas up there. Now let's pretend we are trained arachnids and check the Web...

    Featuring: The Performance Database Server. Start with the bottom of the Dhrystone results. Then find the older Whetstone database.

    STREAM graph of Memory speed vs MFLOPS. (The STREAM standard results has speed numbers. The CPU Info Center has assorted historical CPU info. Here is Intel's Moore's Law graph. Here is a computer timeline. Here are the top 500 supercomputers since 1983.

  9. Can they beat the K7 by Erik+Corry · · Score: 1 · on SGI Press Release: Linux is Officially Supported
    The latest motherboards for Alpha 21264/AMD K7 get some really good benchmarks for Streams (see the entry for the Compaq AlphaServer DS20, after the Crays), which measure the system's ability to shift a lot of data fast.

    This is apparently the same motherboard that Microway is selling with its 6-way crossbar between the dual processor/RAM/PCI busses. The question is, with AMD set to beat Intel in absolute performance, and with high-end Alpha motherboards taking the K7, should SGI be basing their IA32 offerings on this bus instead of the P-II bus?