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IBM Grid Near 50,000 machines - Slashdot Users #13

another similar writes "IBM's World Community Grid is off to a roaring start. Since kicking off six weeks ago (original Slashdot story), the grid has grown to almost 36,000 users with almost 50,000 machines. Growth continues as more media coverage hits. There is a team of Slashdot users - currently ranked 13th in points with only 79 members. If you have spare cycles, download the software, join us and crank for medicine. For those of you with dual processor systems, you'll have to use a homebrewed tool - beyond two is not supported yet. Alas, you also have to be running Redmond's finest. According to their FAQ, a Linux client is slated for development in 2005."

68 of 408 comments (clear)

  1. Only 79 /.ers in six weeks. What does that say? by IO+ERROR · · Score: 5, Funny
    There is a team of Slashdot users - currently ranked 13th in points with only 79 members. . . . Alas, you also have to be running Redmond's finest.

    Which is why there are only 79 /.ers signed up. When they get the Linux client, they'll get 79,000 /.ers.

    --
    How am I supposed to fit a pithy, relevant quote into 120 characters?
    1. Re:Only 79 /.ers in six weeks. What does that say? by Anonymous Coward · · Score: 5, Interesting

      anybody tried it with wine?

    2. Re:Only 79 /.ers in six weeks. What does that say? by Anonymous Coward · · Score: 4, Insightful

      That's hilariously wrong.

      The vast majority of Slashdotters use Windows. That's the dirty secret around here. Nobody wants to admit they're all using windows.

    3. Re:Only 79 /.ers in six weeks. What does that say? by DMUTPeregrine · · Score: 2, Interesting

      I use both. Windows is fine for games, but I reboot to Linux when I want to do some real work.

      --
      Not a sentence!
    4. Re:Only 79 /.ers in six weeks. What does that say? by Anonymous Coward · · Score: 4, Funny

      ... like downloading pirated games and movies.

    5. Re:Only 79 /.ers in six weeks. What does that say? by IO+ERROR · · Score: 3, Interesting
      The vast majority of Slashdotters use Windows. That's the dirty secret around here. Nobody wants to admit they're all using windows.

      While I doubt CmdrTaco is about to post the server logs, I dare say this is un-hilariously wrong.

      When I pull my logs and segment out everyone who was referred here from /. (and shame on you people who have your referer disabled, you know who you are and so do I) I show 85% using Linux, nearly all of whom are using Firefox, and about 1/3 of whom are using a pre-1.0 version.

      I also show the Windows users who come to my site stick around longer and spend more time on the Linux articles than do the Linux users. So I plan more Linux articles.

      And reading the User-Agent strings is fun.

      --
      How am I supposed to fit a pithy, relevant quote into 120 characters?
    6. Re:Only 79 /.ers in six weeks. What does that say? by Anonymous Coward · · Score: 2, Funny

      watching pr0n is not "real work"

    7. Re:Only 79 /.ers in six weeks. What does that say? by Anonymous Coward · · Score: 2, Informative

      No, you're wrong yet again. The editors have said on the record that somewhere around 70 percent of hits were from Windows machines.

      Please, stop embarassing yourself further. It's getting painful to see how clueless you are.

    8. Re:Only 79 /.ers in six weeks. What does that say? by Anonymous Coward · · Score: 5, Funny
      Where someone is referred from is none of your business, mr violating our rights online.

      You want your rights violated? OK, here you go. Your IP address is 192.168.0.1 and you were referred here from 127.0.0.1 which is a HUGE porn, warez and mp3 site. Recent items in your browser history include http://msdn.microsoft.com/ and http://goatse.cx/. You last made an online purchase at http://www.ebay.com/ where you bought a pallet of rubber chickens. And you have a browser helper object installed which sends all of your browsing data to http://www.fbi.gov/ because you're under investigation for ... well ... you know.

    9. Re:Only 79 /.ers in six weeks. What does that say? by St.+Arbirix · · Score: 2, Interesting

      By the time I'm writing this it's probably well over 500 hundred but that's still a puny number considering there are more than 1,000,000 registered Slashdot users. Since I'm at home for the holidays I'll be installing this on the 'rent's computer before I go back to my tabletop penguin.

      --
      Direct away from face when opening.
    10. Re:Only 79 /.ers in six weeks. What does that say? by artifex2004 · · Score: 2, Insightful
      Where someone is referred from is none of your business, mr violating our rights online.


      You choose to use his resources, you can't complain when he uses information you're volunteering. If you don't want him to know, stop the referer response! If you can't do that, that's the fault of your gear, not his.

      If you walk by my house to look at my garden, and I ask "hey, can I have a key to your house?" If you give it to me, am I violating your privacy? No.
    11. Re:Only 79 /.ers in six weeks. What does that say? by IO+ERROR · · Score: 5, Informative
      OK, you can mod me -1, Wrong and Stupid now. I pulled the last week of server logs to see what I'd come up with from people referred from /. and this is what I find. I truly deserve the flamefest which will follow...

      65% Windows
      23% Linux
      10% Mac OS X
      2% Everything else

      User agents:

      68% Firefox
      11% MSIE
      7% Safari
      3% Opera

      Firefox versions:

      84% 1.0
      10% 0.9.3 or older
      6% 0.10.1

      --
      How am I supposed to fit a pithy, relevant quote into 120 characters?
    12. Re:Only 79 /.ers in six weeks. What does that say? by artifex2004 · · Score: 2, Insightful
      Which is why there are only 79 /.ers signed up. When they get the Linux client, they'll get 79,000 /.ers.


      I don't think so. Not if the current shrinkwrap agreement stays in force. The way I read it, the project can do whatever it wants with my cpu and bandwidth and memory. IBM can transfer control of the project to anyone else without prior notice. I'm responsible for any viruses on my system if the sever feeding me updates or data gets hacked. And on and on. Somehow, distributed.net's agreement seemed nicer.

    13. Re:Only 79 /.ers in six weeks. What does that say? by Anonymous Coward · · Score: 5, Funny

      No, but I've tried it with milk. The results weren't pleasant.

    14. Re:Only 79 /.ers in six weeks. What does that say? by Curtman · · Score: 2, Informative

      Seems to work okay. The window stays on top all the time until you minimize it, and its not easy to restore it once its minimized. I have to right click a 1x8 pixel systray applet, and click "Open". But it does run.

    15. Re:Only 79 /.ers in six weeks. What does that say? by BladeMelbourne · · Score: 2, Funny

      anybody tried it with wine?

      My PC clock speed drops to 4.8 MHz and mathematical calculations result in arithmetic errors when my computer consumes wine. IMHO a drunk computer is not a good participant in the World Community Grid.

      And she demands the finest wine too, not a cheap 5 buck chuck. But when she's drunk she's easy, so I'm not complaining ;-)

    16. Re:Only 79 /.ers in six weeks. What does that say? by Lord+Prox · · Score: 2, Informative

      I just realized what I did. I get it. Pr0n. Boink. BOINC.

      ba-dum dum. I was refering to the Berkeley Open Infrastructure for Network Computing (BOINC)

    17. Re:Only 79 /.ers in six weeks. What does that say? by mahdi13 · · Score: 5, Interesting

      Why use wine?
      I've been working with Stanford on Protein Folding for a while...plus they support Windows, Linux AND MacOSX

      Let us know when IBM decides to let the 'rest of us' in on their fun and maybe we'll join up...

      --
      "Some things have to be believed to be seen." - Ralph Hodgson
    18. Re:Only 79 /.ers in six weeks. What does that say? by Anonymous Coward · · Score: 5, Funny

      anybody tried it with wine?

      Apparently 79 people so far.

    19. Re:Only 79 /.ers in six weeks. What does that say? by complete+loony · · Score: 4, Insightful

      Ah, but most of us would browse slashdot from work (slackers :), where we are probably not allowed to run linux or we have to support / develop for windows, but obviously we have (mostly) converted to firefox.

      --
      09F91102 no, 455FE104 nope, F190A1E8 uh-uh, 7A5F8A09 that's not it, C87294CE no. Ah! 452F6E403CDF10714E41DFAA257D313F.
    20. Re:Only 79 /.ers in six weeks. What does that say? by ThousandStars · · Score: 3, Funny
      The vast majority of Slashdotters use Windows. That's the dirty secret around here. Nobody wants to admit they're all using windows.

      Well, nobody wants to admit to having Chlamydia either, but a whole lot of people do.

      Frankly, I wouldn't want admit to using Windows.

    21. Re:Only 79 /.ers in six weeks. What does that say? by FuzzyBad-Mofo · · Score: 2, Interesting

      shame on you people who have your referer disabled

      It's no-one's business which site I browsed before coming to your site. In fact, there is no RFC which states that the referer header is mandatory. The fact that certain sites discriminate against visitors coming from certain other cites has influenced me to disable referer logging in my browser.

      To disable the referer header in Firefox/Mozilla, just go to about:config and filter by 'referer'. Set this value to '0'. You're welcome.

    22. Re:Only 79 /.ers in six weeks. What does that say? by MS_leases_my_soul · · Score: 2, Funny

      We are number 1 now! Just under 2,000 members and counting. And yes, I am running it on Windows XP. Proudly serving my corporate masters! ;)

    23. Re:Only 79 /.ers in six weeks. What does that say? by RichardX · · Score: 2, Funny

      you were referred here from 127.0.0.1 which is a HUGE porn, warez and mp3 site

      DON'T go to that site!!! I went there and they hacked my harddrive and put all my files on the internets!!!

      --
      Curiosity was framed. Ignorance killed the cat.
    24. Re:Only 79 /.ers in six weeks. What does that say? by RichardX · · Score: 2, Insightful

      To bad folding@home can't seem to do more than 1 job without requiring manual intervention these days..

      Just out of curiosity, what problems do you encounter with it? I've been running the windows version for a couple of months, and haven't had any problems with it getting it's work done - though I have found it doesn't play nice with any programs that run full screen - keeps trying to take the screen back, even if it's just running in the tray.

      --
      Curiosity was framed. Ignorance killed the cat.
  2. Imagine... by PornMaster · · Score: 5, Funny

    a Beowu...

    no.

    I can't say it.

    1. Re:Imagine... by ThisNukes4u · · Score: 3, Insightful

      There can't be a beowulf cluster because it doesn't run on linux.

      --
      thisnukes4u.net
  3. "Redmond's finest" by Anonymous Coward · · Score: 5, Funny
    System requirements: Windows XP, 2000, ME, 98

    If, as the submitter implies, Windows ME is Redmond's "finest"...

    1. Re:"Redmond's finest" by UniverseIsADoughnut · · Score: 2, Interesting

      why are you WTFing, you are both right. 2000 was suppose to be for consumers, but it wasn't going to be ready in time, but they had consumer side new stuff worked out with what was ME, thus why its a bit of a mutant between 98 and XP. I suspect MS knew 2000 probably wasn't going to be ready in time, thus they probably kept what was ME going along just incase, and they used it. Also the reason they had to give it the dumb name. Can't have two windows 00's can we. And the 2000 for the NT was probably planned from day one to continue the year system for the 9x series.

      When they finally finished what 2000 was to be, that was XP/5.1, the couldn't call it 6.0 cause it was just the finished job over 5.0, and giving it a year name would be bad cause 2000 hadn't been around very long.

      I'd love to see longhorn just called Windows 6.0 But that probably won't happen. Windows 200x will be ok. Their current numbering implies that will be the case. Windows 6.0 in 2006 will work out nicely. To bad they can't go back to version numbers, they can't cause it would confuse the snot out of consumers.

      To think they would have been saved if they just hadn't called both their OS's windows. 9x series became years cause they used 4.0 for NT. Should have just had Windows, and Windows Pro from the start, even if they had separate bases. Then the XP merge could have happened and everything would be fine. And we could have Windows 6.0 and 6.0 Pro. Alas, it never will be.

  4. From the website.... by mg2 · · Score: 2, Funny

    World Community Grid's mission is to create the largest public computing grid benefiting humanity. Also, jtr finds passwords a lot quicker on the grid than on my old P4.

  5. I don't want to wait for 2005 for the Linux Client by The+Bandit · · Score: 5, Funny

    It's SOOOOOoooo..... long to wait for.

  6. Re:Windows users by spac3manspiff · · Score: 2, Funny

    They're saying We are committed to adding a Linux client in 2005
    so im guessing it's just a matter of days.

  7. I can't decide by CodeYoddler · · Score: 2, Funny

    I've got nine computers here that would be perfect for running the software (above 2.0ghz). Should I join Jew's for Science or the Slashdot team?

  8. Has anybody tried the client in Wine? by tepples · · Score: 4, Interesting

    Does the client work under ABI translation on Linux or *BSD on x86?

    1. Re:Has anybody tried the client in Wine? by Rgb465 · · Score: 3, Informative

      Nay. I just tried it with the stock Wine in Debian Sid, no go. The installer complained about a lack of an MSI installer and exited.

  9. Suprised? no by Anonymous Coward · · Score: 5, Funny

    There is a team of Slashdot users - currently ranked 13th in points with only 79 members.

    and

    Alas, you also have to be running Redmond's finest. According to their FAQ, a Linux client is slated for development in 2005.

    Seriously, are they at ALL suprised that there are only 79 members? They are talking about the linux capital of the universe.

    1. Re:Suprised? no by AKnightCowboy · · Score: 4, Funny

      It just quintupled the number of members since you posted that. ;-) It's growing exponentially. At this rate, the Slashdot Users group will obtain sentience in 48 hours and launch Skynet.

    2. Re:Suprised? no by Zork+the+Almighty · · Score: 5, Funny

      Yes, but this SkyNet will just ramble on and on about frost pist and old people from Korea.

      --

      In Soviet America the banks rob you!
  10. Ownership FYI by The+Hobo · · Score: 5, Informative

    For those keeping track,

    "IT IS ANTICIPATED EVENTUALLY THAT IBM WILL TRANSFER WORLD COMMUNITY GRID TO A NON-IBM OWNED WORLD COMMUNITY GRID ENTITY OR ANOTHER ENTITY"

    This is from the license. Just something to watch for in the future if you like Big Blue (or don't like them) or are concerned about it.

    --
    There is another kind of evil which we must fear most, and that is the indifference of good men. -- Boondock Saints
  11. Cheat to win by Anonymous Coward · · Score: 3, Insightful

    This requires two computers, one "fast" and one "slow," to work, but you can get a massive number of points. Run the WCG client on your slow computer for up to 12-13 days (the limit is two weeks per unit) or until its almost done, then run it (over a network or whatever) on your fast computer. The result is a work unit that took a long long time with a fast machine's speed rating. BAM! HUGE POINTS.

    They should really fix it and record the machine speed every few %.

    1. Re:Cheat to win by bfizzle · · Score: 3, Informative

      Wouldn't work...

      Points are calculated and awarded each time a work unit is completed and a result is successfully returned to World Community Grid Servers. Points are totaled across all machines aggregated under a specific World Community Grid Member.

      Points are based upon the strength of your machine(s), measured against World Community Grid Comparison Device. First, the "strength" of your participating machine(s) is calculated by measuring the following parameters of your machine against World Community Grid Comparison Device:

      spacer 1) CPU Power
      The software periodically runs diagnostic tests to establish the processing power of your hardware configuration. These values are averaged and then divided by the CPU-Power value of World Community Grid Comparison Device. The averaged value is then multiplied by the run time used to complete the work unit and return the results to World Community Grid Servers.

      2) Random Access Memory (RAM)
      The software recognizes the amount of RAM in your hardware configuration. Each time the software starts, it detects any changes to the amount of installed RAM. This value is divided by the RAM value of World Community Grid Comparison Device. The result of this calculation is then multiplied by the run time used to complete the work unit and return the results to World Community Grid Servers.

      3) Hard Disk Storage
      On your preferences page, you set the megabytes of hard disk space allocated and available to World Community Grid projects. The lesser of the amount of hard drive space allocated and the amount of total space available on your hard drive partition, is divided by the Hard Disk Storage value of World Community Grid Comparison Device. The result of this calculation is then multiplied by the run time used to complete the work unit and return the results to World Community Grid Servers.

      4) Effective Upstream Throughput
      The software runs a diagnostic test on a regular basis that measures the upstream throughput of your hardware configuration, when communicating with World Community Grid Servers. These values are averaged, and the result is divided by the Effective Upstream Throughput value of World Community Grid Comparison Device. The result of this calculation is then multiplied by the run time used to complete the work unit and return the results to World Community Grid Servers.

      The final values for all five parameters are weighted, totaled, and factored to generate a whole number of points greater than or equal to 1 for each result returned.

      While any individual parameter can overachieve the corresponding parameter for World Community Grid Comparison Device by any level, no work unit completed by any machine will earn more than twice the total number of points World Community Grid Comparison Device would earn for that same work unit.

      Note: The slightest variance in any of the five parameters coupled with the inherent differences across multiple applications and work units within one project will result in different point values being assigned per work unit completion.

  12. Funny by pertinax18 · · Score: 3, Interesting

    It's funny that the article makes a big deal about having only 79 members and being ranked 13th in total points. Well, as of now, they are also ranked 15th in total members, so when you combine the two facts it isn't nearly as impressive.

  13. Redmond's Finest? by artemis67 · · Score: 4, Funny

    That's like saying your car comes from Yugoslavia's Finest!

  14. Global Grid Exchange for Linux by onetruedabe · · Score: 3, Informative
    Global Grid Exchange has a Linux client, and has an open SDK/API for developing your own Grid Apps.

    Also, the Global Grid Exchange client runs in a secure Java sandbox, so there's no fear of being 0wned by malicious code.

  15. Uhhh... by Epistax · · Score: 3, Funny

    crank for medicine

    no comment...
    </too easy>

  16. BW? by HarveyBirdman · · Score: 2, Interesting
    I have a PeeCee that sits around hardly ever being used now that my dumbass employer no longer allows employee owned equipment to use the VPN connections.

    Can anyone find any info on the network bandwidth this thing will use up? I may not use the PC for anything else, but I don't want my wee little cable modem fed network swamped when I'm on the Apple boxen.

    --
    --- Ban humanity.
  17. Redmond's finest by Complicity · · Score: 5, Funny
    Alas, you also have to be running Redmond's finest.
    DOS 6.22?
    --
    - c -
  18. Runs on WINE by b0lt · · Score: 4, Informative

    It seems to run on WINE for me, but I've only ran it for maybe 3 minutes now. I'm using TransGaming's Cedega (formerly WineX) version of WINE to run it though, so I'm not quite sure if it works with plain WINE.

    -b0lt

    --
    got sig?
  19. Isn't it strange ... by vieux+schnock · · Score: 2, Insightful

    ... that for a company that touted to spend a billion dollars on Linux for R&D in a year (in 2001), and have a large Linux on-line material, when it comes to show off their expertise, with all the media attention and hype they hope to produce with such an announcement, they favor starting off with Windows clients.

    Am I missing something ?

    1. Re:Isn't it strange ... by xgamer04 · · Score: 2, Insightful

      Um, you have heard of this company "IBM", right? They are HUGE. GIGANTIC. With many divisions. Just because they have Linux servers doesn't mean Betty in HR is using it.

      --
      When you look at the state of the world, how can you not become a radical, liberal anarchist?
    2. Re:Isn't it strange ... by Jeremi · · Score: 2, Insightful
      Am I missing something ?


      You haven't thought it through. IBM isn't stupid. They know that the more clients participate, the more successful their project will be. They also know which OS is installed on the majority of potential client PCs worldwide. So when it came time to decide which OS to write a client for first, they did the sensible thing.


      The Linux client will arrive soon enough, just wait. (I'm waiting for the BeOS client, myself ;^))

      --


      I don't care if it's 90,000 hectares. That lake was not my doing.
    3. Re:Isn't it strange ... by Matej+Barac · · Score: 2, Funny

      Am I missing something ? Just the other 98% of the desktop users.

  20. What about dnetc? by HoepckeD · · Score: 3, Insightful

    http://www.distributed.net/ Been around forever, have done far more impressive work than Big Blue . . . and I think they've had Linux clients for a little while.

    1. Re:What about dnetc? by ZorbaTHut · · Score: 3, Insightful

      "Far more impressive work"?

      They've tried to crack single encrypted messages that exist for the sole purpose of being cracked. I'm sorry, but that just plain doesn't excite me anymore.

      OGR's more interesting, but I got bored of RC5 years ago.

      --
      Breaking Into the Industry - A development log about starting a game studio.
  21. I'm confused. by Anonymous Coward · · Score: 2, Funny

    Alas, you also have to be running Redmond's finest.

    What does Solitaire have to do with this?

  22. Re:Windows users by grub · · Score: 5, Funny


    Slashdot should have a team developing a client.

    Yeah but it'd be written in Perl.

    --
    Trolling is a art,
  23. Cluster support? by digitac · · Score: 4, Funny

    Windows only, and only 2 processors? Darn. Now what am I going to do with the 14 node ClusterKnoppix I put together this afternoon. ::Digitac

  24. Open Grid ? by djplurvert · · Score: 3, Interesting

    At the risk of sounding naive, is anybody aware of a group of amateurs running a grid on a smaller scale.

    I'm not thinking of your typical "let's all save the world with cpu cycles" kind of project. Rather, somthing on a smaller scale that allows you to join the grid with the intent of using it for your own projects.

    I did some work last year that made use of apple's grid software on some lab computers at school but it would have been nice to have access to 1000 or 2000 machines for a day or so.

    I can imagine there are sharing issues that might make it impractical but I can also imagine that it might just work considering, at least for me, the sporadic nature of the need for such a grid.

    1. Re:Open Grid ? by Graymalkin · · Score: 2, Interesting

      Charles Parnot at Stanford made a grid for his personal project. He's got more than a hundred people donating some spare cycles to his grid which is pretty impressive for a fairly small project. Daniel Côté started an awesome project to get Xgrid working on non-OSX Unix systems. With a bit of work his Xgrid Agent program could be really robust and reliable enough for getting real work done. Like you I'd like to see this technology proliferate so maybe we can start seeing open grids pop up in various computer user communities.

      --
      I'm a loner Dottie, a Rebel.
  25. Microsoft Installer by tepples · · Score: 2, Interesting

    They're working on support for Microsoft Installer. Until then, have you tried installing it on a winbox and then copying it over, or is it anal about registry entries, or are you boycotting Windows entirely?

  26. Woohoo! Slashdot users #1 by another+similar · · Score: 3, Informative

    Well, forty minutes after the post going live, Slashdot Users team member count has shot us into #1 position. Now we'll just need to see how long it's going to take to push Big Blue (x6), five members of the G8 and Norway below us in the point count. I'm guessing several weeks, but maybe this will get more bang for the buck than I had anticipated.

    To clarify, since I've been poked several times in comments already - "Redmond's Finest" was intended to be dripping with sarcasm.... But most Slashdot users are likely wicked smart enough to have known that.... I did enjoy the quip about DOS 6.22... Bravo!

    With respect to your options on teams, rather than Jews for Science, I would suggest considering girlsoflove.com, who's page states:

    Web Cam girls and woman offering their machines when they are not online to help and give back to the world. If you put your machine to help this project and join our team, Send us and email and we will offer you Free time to come and chat with us. The Girls from GIRLSOFLOVE.COM We also provide web broadcasting web video chat conference applications We are from all over the world Montreal Quebec Toronto Vancouver Canada america usa france britain italia brazil mexico argentina asia

    This could be fulfilling in, er, other ways, but obviously, being on the #1 team (in user count) and soon to be #1 in points, results, etc. is a lot cooler....

    Thanks Slashdotters for taking things up another notch (or 20)!

  27. Rosetta was developed on Linux by goombah99 · · Score: 5, Informative
    I'm one of the authors of the code they are running as the first application of the world grid. This is Rosetta, the protein structure prediction program. Rosetta was born on Linux. It can run on a mac too but not as well. There never was a version developed for Windows. But hand it to the the IBM folks to create a wrapper that lets it run as a grid "screen saver" scavenger application on windows. Pretty remarkable.

    Of course the reason for this is obvious right? windows dominated the planet not only in installed systems but in installed systems with cycles to spare. i.e. desktops. So dont cry your eyes out over it not being linux compatible. The excess linux bandwidth after you subtract our the servers is not going to be a lot. Console yourself that the TCO of linux is really a lot less when you figure that linux computers are already too busy to be bothered with Grid computing. :-)

    Rosetta itself was written in fortran and only recently converted to C++. the C++ conversion was done using the incredibly well designed Objexx Library by stuart metzner and colleagues. This is a library that lets you write fortran code in C++. Before this people who tried to re-write this behemoth to C++ just died in the process. The objexx library let the whole thing be converted to C++ in one fell swoop. Now the program will slowly evolve from fortran style to C++ object orientation as it continues to grow. But in the meantime the code is productive. Nice Eh? The cool thing is that with a bit of optimization the code did not lose any appreciable speed in the conversion. So if you have legacy fortran you use for speed, consider converting it using Objexx. I was one of the people who argued for going to fortran95 not c++ because I feeared a speed loss; Iv'e become a convert

    In any event the program is not like folding at home. That program tries to study in detail the picosecond evolution of single protien as it folds. Rosetta simply predicts the folded structure. Its actually quite fast at doing that. But it turns out it makes lots of different predictions. So you have to do it tens of thousands of times and then see which geometries of folded structures are favored statistically. Then you do the next protein. Eventually you work your way through the whole human genome.

    also unlike folding at home the potential surface in rosetta is less physics based and more bayesian statistice. It has statistical potential for the probability of a peptide backbone structure occuring. And it has a probabilty for a sidechain amino acid sequence given a backbone structure. Multiply those together and bayes rule says the result is proportional to the probablity of a structrure given a sequence. You can read more about this here. Click on publications.

    This statistical potential turns out to be so accurate that it can not only be used to predict the structure of proteins but it can be used in reverse to design a novel structured protein. Recently it was used to design a protein with a tolopology that had never previously existied in nature. This is rather an amazing results. Others had previously redesigned the sequences of existing topologies or perturbed those topologies or created some special case topologies. But Brian Kuklman in David Baker's lab actually started from a napkin sketch and designed a protein from scratch.

    After you predict the structure of a protein, one thing you can do is ask if that structure is like another Protein you have seen before. You can compare the structure of a model to a real protein using a program known as MAMMOTH. While there are a variety of programs for comparing two proteins this one is particularly good for the case of comparing an inaccurate model to an experimentally known structure. If they match then you can assume the protiens may share a related function or evolutionary origin (or not!).

    whihc brings us to what proteins are. Think of DNA as a disk drive that

    --
    Some drink at the fountain of knowledge. Others just gargle.
    1. Re:Rosetta was developed on Linux by djplurvert · · Score: 2, Interesting

      That doesn't surprise me. Scientists seem to think there's nothing you can't learn about comptuer science as you go along. I would bet money that speed gains could be had simply by properly structuring that mess, profiling, and optimizing the inner loops.

      I've seen science/old-school engineering types argue for fortran for speed when the real speed issue is how the code is written.

  28. Wrong by gad_zuki! · · Score: 2, Interesting

    When my adblocker was put on the slashdot front page I ran analog and saw something like 70% using windows. Possibly more. I wish I still had the logs. I also remember taco claiming that a huge number (60 or 80 percent) were Windows users.

    Of course some were people at work using windows so give em 5 percent or so, but the problem here isnt the lack of a linux client its the lack of promotion on IBMs part. First I've heard of it.

    Sorry, but this isnt the linux haven you think it is. Windows first, UNIX, and then Macs. Oh and I'm sure there are at least eight guys surfing from a commodore 64.

    I'm on XP right now and shifting to OSX next year. All my UNIX work is done on the server side. The linux desktop revolution hasnt happened and may never happen. There needs to be a whole lot more commercialization of linux to even compete with MS and Apple's offerings.

  29. Re:Is IBM profiting? by kamesh · · Score: 2, Informative

    I think it is non-profit... The World Community Grid is strictly a philanthropic project currently funded by IBM. The research results will be made freely available to the world. Check IBM's website for details... http://www.ibm.com/ibm/ibmgives/news/wcg.shtml "IBM's values state that we are committed to providing innovation that matters for our company and for the world. There is no better way for us to live those values than to join the World Computing Grid," said Stanley S. Litow, vice president of IBM Corporate Community Relations and president of the IBM International Foundation. "We're taking IBM's innovative on demand grid technology - the same technology we share with customers - and applying it to humanitarian issues about which the world cares. We look forward to working with our employees, customers and the public to execute this exciting vision."

  30. Group of Slashdotters? by popo · · Score: 2, Interesting

    This might sound like a stupid question, but I've had my World Community Grid client running since the first time /. covered the subject. But I'm not part of some /. group of WCG users as far as I know... I'm just another individual client app. How is this /. group identified and grouped by the WCG?

    --
    ------ The best brain training is now totally free : )
  31. Re:User-Agent header is wrong by tesmako · · Score: 2, Informative
    While the numbers might not be absolutely correct I consider the suggestion that the vast majority of Linux users have set up their browser to identify it as a recent version of Firefox running on Windows moronic.

    Feel free to link me to a few sites that refuse to let people running Linux in based on the operating system alone.

    It is one thing to say that IE's market dominance can follow from false user agent tags, but since so very few browsers in this particular sampling set report themselves as IE (or anything else that is commonly accepted by stupid websites) I highly doubt that anyone has gone out of their way to change the operating system given without changing the browser to one of the ones that will work on all websites.

    To reiterate:
    11% report themselves to be MSIE
    65% report themselves to be on Windows
    23% report themselves to be Linux

    Conclusion: There are a lot more Windows users on Slashdot OR most Linux users change their user-agent tags in pointless ways. Or to phrase it this way; Either there are few Linux users or the many Linux users are stupid.

  32. Re:User-Agent header is wrong by tesmako · · Score: 4, Funny
    I would distrust a poll to a far greater extent than user agent information, Slashdot is a Linux-pride site of great proportions, people will tend to answer Linux even when it is not really true.

    You know how it works; Dual-booters will answer Linux despite being in Windows. People with multiple machines will answer Linux refusing to admit it if they actually use Windows more. People who have a Linux server with a ssh session active will answer Linux despite surfing in from a Windows desktop. The casual Fedora user who according to themselves just havent gotten around installing Linux again since they replaced their harddrive... There is prestige in using Linux here, most of Slashdot uses Windows, but most of it would also like to pretend that they arent.

    To put it the proper way: Slashdot is mostly made up of posers.