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Folding@Home Reports Success

msheppard writes "This Article describes how the folding@home distributed computing project is reporting that they used the data processed on client machines to "predict the folding rate and trajectory of the average molecule." Too bad Seti@Home hasn't had a hit yet."

139 of 325 comments (clear)

  1. Oh, *that* kind of folding. by Anonymous Coward · · Score: 4, Funny

    Did anyone else think this was yet another article about @Home going bankrupt?

  2. I fold at home by Anonymous Coward · · Score: 3, Funny

    I make all sorts of neat origami... Frogs, swans, flowers, all very lovely! I can also make some kick ass paper airplanes.

    1. Re:I fold at home by L.+VeGas · · Score: 4, Funny

      I tried to fold a molecule once, but I wasn't even able to fold a piece of paper eight times.

    2. Re:I fold at home by Webmoth · · Score: 3, Interesting

      Go check out Yamaha Papercraft for some neat origami, including a few motorcycles.

      --
      Give me my freedom, and I'll take care of my own security, thank you.
  3. Folding @ Home page is by wherley · · Score: 4, Informative
  4. Links of course by DeadBugs · · Score: 5, Informative

    MSNBC Article.

    Folding@Home Home

    For the real info though check out the Forums

    Token link to how my team is doing.

    PRIME1

    --
    http://www.kubuntu.org/
    1. Re:Links of course by Anonymous Coward · · Score: 2, Informative

      Or, just go to Google News since that is where all of the story posts of late are coming from anyway.

  5. Protein!!!! by The+Spelling+Nazi · · Score: 5, Funny
    "predict the folding rate and trajectory of the average molecule"

    That's average protein molecule, you insensitive clod!

    1. Re:Protein!!!! by Dutchmaan · · Score: 3, Funny

      No no no..

      Average molecules come in plain white bags with black stencil lettering "Molecules"

      They're located in the science section of your local grocery store.

    2. Re:Protein!!!! by Bob+McCown · · Score: 4, Funny

      Is that an unladen molecule?

    3. Re:Protein!!!! by Alranor · · Score: 4, Funny

      And is it African or European??

  6. Its just a shame by dan+dan+the+dna+man · · Score: 4, Interesting

    that the sister project genome@home was so monumentally badly mismanaged that it effectively merged with folding@home a distinct project. I lost complete faith in the Pande group at that point along with a lot of other genome crunchers and switched all my CPU's back to SETI...

    --
    I don't read your sig, why do you read mine?
    1. Re:Its just a shame by mfos.org · · Score: 3, Insightful

      Try the Distributed folding project I like them because they have cooler client for linux

    2. Re:Its just a shame by Vijay+Pande · · Score: 4, Interesting

      sorry to hear you say that. Our emphasis has always been on the science (hence we have important results whereas the other "science" d.c. projects don't). What I would say to you is the results speak for themselves.

    3. Re:Its just a shame by Vijay+Pande · · Score: 3, Interesting

      Implicit solvation is a good question and deserves a long discourse. The bottom line in my mind is that while it's a pretty harsh approximation, it's still not too bad. Actually, our work shows that. However, we are moving to explicit solvation anyway to compare for sure.

      I'm not sure how predictive the Nussinov work was considering the methodology.

      Finally, I agree that we need to mine the trajectories more. We're doing that, but perhaps more importantly, we will release the data for others to mine too!

      V

  7. Other uses for Distributed Computing by ksplatter · · Score: 5, Funny

    Maybe next we can use our screensavers to do something cool like search the web for potential stories to post on slashdot.

    1. Re:Other uses for Distributed Computing by Suppafly · · Score: 4, Interesting

      I'm surprised google hasn't come out with a spider at home client which goes out and searches the web caching sites as it goes. Sure distributed computing could help their venture and who doesn't love google?

    2. Re:Other uses for Distributed Computing by Atlantix · · Score: 5, Funny

      Who doesn't love google? Apparently some guy over at SearchKing!

      --A2K

    3. Re:Other uses for Distributed Computing by Duckz · · Score: 2

      This grub project is on the way to doing just that.

    4. Re:Other uses for Distributed Computing by donutello · · Score: 2

      We need to come up with a good algorithm to determine which stories get posted multiple times.

      --
      Mmmm.. Donuts
    5. Re:Other uses for Distributed Computing by Reckless+Visionary · · Score: 2

      No, but my google toolbar did popup today and ask if it could use my spare cycles for its Google Compute feature. First beneficiary of my processor and google toolbar? That's right, folding@home.

      --
      I think I'll stop here.
  8. well... by gray+code · · Score: 5, Funny

    Too bad Seti@Home hasn't had a hit yet.

    Well, here's the thing: "we know molecules exist..."

    1. Re:well... by meteau · · Score: 5, Funny

      How do YOUUUU know? I can't see a molecule. It's just another one of those things like "germs" or "atoms" that the man keeps claiming are there. It's all about the health industry and their "oh you're sick with an 'infection' so here is some 'anti-biotics' to kill the big bad invisible 'germs'...whatever...

      --
      -- "You used your dictaphone to post, didn't you?"
    2. Re:well... by T3kno · · Score: 2, Insightful

      With a universe the size of ours it is almost inconcievable that life doesn't exist elsewhere. On the other hand how special and unique does it make humanity if we are the ONLY life in the universe? God is truly wise, we are not.

      --
      (B) + (D) + (B) + (D) = (K) + (&)
    3. Re:well... by anthony_dipierro · · Score: 2

      With a universe the size of ours it is almost inconcievable that life doesn't exist elsewhere.

      Sure, but with a universe the size of ours it is almost inconcievable that we will actually find that life.

  9. dfold too! by nevershower · · Score: 5, Informative

    If you like F@H, check out Distributed Folding.

    --
    Look, ma! I'm a karma whore
    1. Re:dfold too! by hplasm · · Score: 4, Funny

      Never mind the folding, why is there no Ironing@Home to do it for me?

      --
      ...and he grinned, like a fox eating shit out of a wire brush.
  10. They could work on the screensaver version by jeblucas · · Score: 5, Insightful
    It's not exactly overwhelming. They have alpha-trace, ball and stick, wireframe, and most interesting (I guess) is space filled. This big blob rotates about once every second, and these two static images sit at the bottom "provided by COSM" and a bad "Folding@home" graphic. They look ugly. Plus I'm not too anxious to let the static images sit on my LCD screen overnight. (Please don't respond with a torrent of "u ID10T, u w0n7 hur7 ur scrn!!!!" --Call it voodoo.)

    SETI@home has much nicer graphics, albeit, a much dumber purpose. I'll stick with folding@home, but I wish they would pretty the damn thing up a little--at least on the Mac OS X platform.

    --
    blarg.
    1. Re:They could work on the screensaver version by Papineau · · Score: 2

      Plus I'm not too anxious to let the static images sit on my LCD screen overnight.

      Just turn off the damn screen if nobody will watch it for the night. No need to keep it powered on (even if it consumes less than a CRT). It'll probably live longer, and your monthly electricity bill will be a bit lower (~ $2).

      But that begs the question: is it possible to turn off the LCD of the new Macs? Or the CRT of the older iMacs? (not meant as flamebait, just asking because I don't have access to one)

    2. Re:They could work on the screensaver version by Vijay+Pande · · Score: 3, Interesting

      in the latest clients, you can turn off the logos if you like. We've been pretty responsive to people's feature requests like that.

    3. Re:They could work on the screensaver version by Mike1024 · · Score: 2

      Hey,

      these two static images sit at the bottom "provided by COSM" and a bad "Folding@home" graphic. They look ugly

      On the Windows version you can switch them off. On the 'preferences' window, 'advanced' tab, under 'graphics' there's a checkbox labeled 'logos enabled'. Deselect it and have no logos.

      Personally, I don't use the screensaver, though. I power down my screen. But that's just me.

      Don't know if the no logo option is there on the mac version, but it can'r hurt to look.

      Cheers,

      Michael

      --
      "Goodness me, how unlike the FBI to abuse the trust of the American public." -- The Onion
  11. So many to choose from! by TheGreenGoogler · · Score: 4, Interesting

    I hadn't realized how many distributed (grid) computing programs were out there... Check out Google Directory's list of links to distributed computing pages/projects here... Distributed Chess sounds very interesting!

    1. Re:So many to choose from! by De+Lemming · · Score: 5, Interesting

      You can find even more projects here. And they're ordered in categories, including science, mathematics, puzzles and even art (I really like the Electric Sheep Project).

      Bottomquark has reviewed a number of projects.

      And here is a community site of people participating in such projects.

    2. Re:So many to choose from! by whereiswaldo · · Score: 3, Interesting

      I almost signed up for a distributed computing project until I read the terms very carefully.

      What bothered me is they weren't responsible for damage to your computer, your data, they wouldn't guarantee the non-existence of virii, and they wouldn't tell you what kinds of things were being computed on your computer (it was processing power as a service - you'd get paid a measly amount to let them use your computer).

      How was I to know they wouldn't be using MY computer to do things I'd consider unethical or illegal?

      Whatever service you join, be SURE to read the fine print carefully beforehand.

    3. Re:So many to choose from! by das_cookie · · Score: 3, Interesting

      How about United Devices? They have a project that's helping find a cancer cure. Plus, they have a really cool screen saver of a model of the current protein you're working on floating around your screen.

      --

      You! Yes, YOU! Out of the gene pool!

    4. Re:So many to choose from! by mortis_aeturnus · · Score: 2, Interesting
      It appears that the original Electric Sheep site has been replaced with a technology site of similar name.

      Now this is the new official site, and the only place I can find that has a source download.

    5. Re:So many to choose from! by overunderunderdone · · Score: 3, Insightful

      ... and even art

      I'm really suprised that none of the special-effects CG companies are using this. This kind of grid computing is great for rendering. I could see Pixar doing a really slick screen-saver & maybe letting you see the frames you rendered as a "reward" (maybe not all of them - don't want to give away too much of the movie to a geek with a super powerful computer). It would get their rendering done for free and would be a great promo for the movie. Who wouldn't go to see a movie they helped produce? More than once - " Here comes the frame I rendered... There! Did you see it? Just when Nemo swims up to that shark?... I did that!"

    6. Re:So many to choose from! by overunderunderdone · · Score: 2

      Not so insightful when you realize that you might need to download a gigabyte of proprietary content and software before even starting the render on one frame.

      The fact that it is proprietary is irrelevant if the person giving it to you is the proprietor. I doubt they would care if you saw one frame prior to the release of the movie - if anything seeing just one frame would be a great "teaser". They could also just offload rather unimportant scenes in this way, the set up to the visual joke rather than the punchline. If one frame is too big, even better for the security of Woody & Buzz's big scene. Just have your particular computer rendering a portion of a frame. Rendering is already done with this kind of distributed computing. I'm sure it's possible to create a subset of RenderMan as part of the distributed client that would allow Pixar to offload some of their heavy-lifting without compromising their proprietary software, models or scenes.

    7. Re:So many to choose from! by overunderunderdone · · Score: 2

      unlike seti, cgi rendering typically has an artist/tech at the other end waiting for the answer. They don't have time to sit and wait days/weeks b

      I'm not talking about the fairly low-res rendering as the artists & modellers are working on the project, I'm talking about the final high-res render which already takes not weeks but months. The original Toy Story took nearly a year on a render farm with 100 computers. Each frame took 6-8 hours for the farm to render, each second of film had 24-frames. The data obviously is already being divied up in a way that each computer is NOT working on an entire frame. I'm not sure exactly how the data and computation is divied up but I wouldn't doubt that it is already being divided in a way that the actual tasks each computer is working on is pretty well abstracted from the models, textures etc. which are the "crown jewels" of Pixar's intellectual property. The fact that we are already talking about very long-term jobs (no artist is sitting at his desk waiting for the render so he can work on the next thing) and that the job is already handled in a distributed manner makes it seem like an ideal candidate for a really wide distributed computing solution. Instead of using 100 Sun or SGI machines for many months use the spare cycles of 100,000 PC's for a few weeks.

      Even chopping each frame into little pieces would make things extremely complicated on already too complicated renders. Just because you render only a portion of the frame doesn't mean you don't need most of the full models, materials, etc... in memory (radiosity?).

      I don't know how RenderMan handles this on the existing render farm but I do know that some distributed renders work in exactly this way. A master handles the big picture and sends each slave on the farm just the data and tasks it needs to do it's bit. I would imagine this would only work over the net if, as I said before, you are dividing up the computational work at a lower level that is both abstracted from the models, textures etc. and is capable of being divided up with finer granularity, sending out smaller chunks of work down smaller pipes to smaller computers but a whole lot more of them to get the work done much faster.

  12. Try this instead by mfos.org · · Score: 4, Funny

    Sorry, brain no workie this morning.

    go here instead

  13. API???? by ksplatter · · Score: 2, Interesting

    It would be cool if someone would develop an opensource API for this sort of thing. Then us lazy people out there could easily write programs to utilize this sort of processing power. I wouldn't mind harnessing the power of 200 computers to perform a Bubble Sort.

  14. Article is incorrect... by motardo · · Score: 5, Interesting

    in saying that it's the first distributed computing success. Look at the success of the distributed.net project, they just recently cracked rc5-64, and have cracked several other ciphers before.

    1. Re:Article is incorrect... by unicron · · Score: 2

      Distributed.Net was NOT about encryption. It was about proving that distributed computing applications have merit, encryption was just the chosen application to prove that. Also, during the rc5-64 run, math and logic errors were found in the algorithm, so it wasn't all brute force. If you honestly think that the application is invalid because no one country could put that many computers together to pose a threat to our security, you're wrong.

      --
      Finally, math books without any of that base 6 crap in them.
    2. Re:Article is incorrect... by unicron · · Score: 2

      In all seriousness, apparently very little. How does your sentence even make sense? What aspect of RC5? The distrubted.net application of finding the key through brute force? The encryption itself? If the latter, how does that even begin to make sense? Which RC5 encryption level? 64? We aren't even really discussing encryption to begin with, we're discusssing distributed computing applications. I can't even begin to fathom the logic behind your sentence.

      --
      Finally, math books without any of that base 6 crap in them.
  15. Good CS, bad chemistry by the+gnat · · Score: 5, Interesting

    Okay, it's nice to see that distributed computing is finally becoming a useful tool. Nonetheless, I don't think there's anything particularly impressive about the biological results. The proteins they're folding are so small that most factors that affect the folding and conformation of the vast majority of proteins simply don't exist. When someone accurately predicts the structure of a normal globular protein at atomic resolution, I'll be impressed. When they can predict the structure of the F1F0 ATPase, then we can throw out crystallography- but it's not going to happen. (Ignoring for the moment that crystallography has it's own issues. . . at least it can show active sites and quaternary structure)

    Don't get me wrong, the geek half of me thinks that what they're doing is very cool (and far more interesting/useful than Seti@Home). But I don't think it's very relevant to biology, and I doubt it'll ever replace traditional methods. Computers have almost unlimited potential as an aid to experimental structural biology, but in silico protein folding is still a pipe dream and a hand-waving exercise. The theory is really cool, the practical applications are nearly zero.

    (Disclaimer: I don't have a PhD so I'm not very qualified in this field, but I do have a BS in biology and a fair amount of experience in programming and some knowledge of molecular simulation.)

    1. Re:Good CS, bad chemistry by the+gnat · · Score: 3, Interesting

      They also have some prior knowledge of the tertiary structure of the protein they're simulating, by the way. So, all they've proved is that they can simulate the folding of a small protein and get results close to what experiment shows. This is a long way off from "we can predict the structure of proteins."

      Besides, it tells you nothing about enzymatic activity, interaction with other proteins, interaction with small molecules and ions. . . these are not easily simulated, and certainly aren't covered by their current method. The software they're actually using is fairly standard (I don't mean this in a bad way), and isn't really the type of thing that would be useful for, say, docking experiments.

      Frankly, I find David Baker's work at the U of Wasington to be far more impressive from the perspective of biology. (But still not good enough to replace Xray and NMR methods anytime before I retire.) He's not doing distributed computing though, so I guess it doesn't rise to Slashdot levels of sexiness.

    2. Re:Good CS, bad chemistry by k98sven · · Score: 4, Informative

      When they can predict the structure of the F1F0 ATPase, then we can throw out crystallography- but it's not going to happen.
      (Ignoring for the moment that crystallography has it's own issues. . . at least it can show active sites and quaternary structure)


      Well, for the first, we can't throw out crystallography even then. When you're doing a computer calculation, you are in the realm of theory. (even if you have arbitrary accuracy).

      You will still need to do experimental verifications now and then.

      At the moment, about 2/3 of known protein structures have been mapped through X-ray crystallography. At best the resolutions are about 1.8 Å, which is pretty good. So you can see quite a bit more than quaternary structure!

      The other third is done with NMR spectroscopy,
      usually with some powerful computing help to figure it out.

      And then there are a pitiful few,
      done with computers and experimental data.
      These structures also have the poorest accuracy.

      Note that computers will never, ever be able to figure out a protein structre ab initio. (i.e. without any info except the sequence)
      Do the math, say you have 100 amino acids, and you
      test say, 4 conformations for each, that's 4^100
      combinations to test.. and you test 10 million a second, it'll take you 5E45 years.
      Much older than the current universe.

      (Disclaimer: I do not -yet- have my PhD in computational biochemistry.. but I'm working on it..)

    3. Re:Good CS, bad chemistry by Vijay+Pande · · Score: 3, Insightful

      I think you're missing the point. This is not about structure prediction, it's about understanding HOW proteins fold -- info which will never come from Xray or NMR. In terms of practical applications, we're now running simulations of Alzheimer AB peptides to understand their misfolding properties.

    4. Re:Good CS, bad chemistry by the+gnat · · Score: 2

      Okay, that's fair. And I probably sounded way too harsh- I do think understanding HOW proteins fold is a great idea. Certainly some interesting work has been/is being done with prions as well, along similar lines. What I object to is the notion some uninformed people seem to hold that in a few years we'll routinely be guessing the structures of proteins correctly with computers. (I guess I read Slashdot too much, otherwise this might not bother me.) So my beef isn't (or shouldn't be) with this research, but with people who are participating in it for the wrong reasons.

      Sorry if I sound like a loose cannon. No offense intended- I liked the paper, really.

    5. Re:Good CS, bad chemistry by skeedlelee · · Score: 3, Informative

      Given that you've almost stated the Levinthal paradox I'll assume you're familiar with it, but missed the point. Basically, it states that even in the simplest description of protein conformation (say 3 possible states each for 100 amino acids) can't be searched in a reasonable period of time, the shortest feasible time that a protein could sample a state in about 10^-13s. This works out to be ~10^27 years to check all the 3^100th states (borrowing Styer's description of this). This is clearly wrong, proteins fold in milliseconds (okay ns-100s of but you get my point). The clear conclusion is that proteins don't sample every conformation availible, or even any singificant fraction of them. There must be some fashion by which frequent short range and random long range contacts guide the protein into a 'pathway' of folding.

      The nifty thing with the folding@home study is that there were able to basically show that invoking a simple physical force field system was enough to get pathways, though they don't make too big a deal about this, maybe someone else has already done this, but I'd be surprised if they managed to do as many trajectories as were done here. I imagine it'll be a while before they process the trajectories to try and find actual pathways (very compute intensive), but the fact that they found a comparable rate (we're not talking global conformation here, these are kinetics) suggests that they may be sitting on top of an actual description of the folding pathway for this teeny protein. Spiffy!

    6. Re:Good CS, bad chemistry by RandomCoil · · Score: 2
      Note that computers will never, ever be able to figure out a protein structre ab initio. (i.e. without any info except the sequence)

      If you're working on your Ph.D., you might want to abandon the use of the word "never" when it comes to what may be accomplished in the future. A 20-residue protein has already been folded from sequence information alone
    7. Re:Good CS, bad chemistry by RandomCoil · · Score: 2
      barely qualifies as a protein, more a peptide :)

      As long as you keep the word "barely" in that sentence, I won't have to call you out for a duel :)
  16. Re:And so what if SETI did get a hit? by Suppafly · · Score: 4, Insightful

    Amen. If you are going to use your spare cpu cycles for something, apply them to a good cause. Besides if you study much on the SETI project, they look at a very limited range of data of the odds of finding anything interesting are exponentially worse than you'd even think. At least the various folding projects and the think project from intel and other medically related go towards good causes where every bit of data helps the cause.

  17. good place to start by emir · · Score: 3, Informative

    if you are intressted in distributed computing, good page to start with is http://www.aspenleaf.com/distributed/. there is info on every existing distributed computing project (both upcomming and existing), lots of articles on distributed computing and even links to books on distributed computing.

    --
    -- http://electronicintifada.net --
    1. Re:good place to start by emir · · Score: 2

      heh, if you cared to go to that page that i sent link to you would see that ud project is listed :)

      --
      -- http://electronicintifada.net --
  18. Re:And so what if SETI did get a hit? by smd4985 · · Score: 3, Insightful

    if we only focused our minds and money on problems that are immediate to us, we would be making a grave mistake. if we DID find evidence of another civilization, the philosophical ramifications would be enormous.

    --
    smd4985
  19. Why do people download these blah@home clients? by zaqattack911 · · Score: 3, Interesting

    If SETI can get 100s of thousands of people do lend cpu cycles, and folding@home (which is MUCH more obscure than SETI) can get 30k people.

    Then this phenomina should really be looked at by marketing people. It's amazing they can start a project, and just assume people will want to download their little client to use up cpu power ala screen saver.

    What drives you people to use these clients? Why bother? And don't tell me it's cuz you want to do your part to find aliens :)

    --Me

    1. Re:Why do people download these blah@home clients? by tgibbs · · Score: 2

      Why not contribute to scientific progress? I can't perceive any effect on the performance of my computer by having Folding@Home running in the background. No, I don't believe that it is particularly cure Alzheimer's Disease or cancer, but it is an important problem, nevertheless. And while the likelihood of actually finding extraterrestrial life may not be high (although nobody knows for sure), a success would be extremely important.

    2. Re:Why do people download these blah@home clients? by Reckless+Visionary · · Score: 2

      Well, its pretty easy (and you don't have to download a client) when it's built into your Google toolbar.

      --
      I think I'll stop here.
  20. Seti? by den_erpel · · Score: 3, Interesting

    Hm,

    In the "Space" documentary series (hosted by Sam Neill), one researcher mentioned something about "except that one time".

    Apparently they had some signal, but it was gone before they could reallign the dishes to get a confirmation.
    I guess they ruled out possible "domestic" signals...

    If anyone could guide me to a more elaborate source except that remark of one of the researchers, I would like to read it :)

    --
    Genius doesn't work on an assembly line basis. You can't simply say, "Today I will be brilliant."
    1. Re:Seti? by pclminion · · Score: 3, Funny
      From that page:

      Assuming the Wow! signal is a typical SETI-like transmission, then we can expect valid SETI hits to be very strong, high intermittent signals which appear once (as the transit beam sweeps past Earth), and never repeat again.

      So, in other words, they admit that they can never fulfill their own requirements (namely, the repeatability requirement).

      Rather daunting, isn't it...

  21. NP-Completeness by mortis_aeturnus · · Score: 5, Informative
    This is an abstract for On the Complexity of Protein Folding, which deals with the NP-Completeness of protein folding in two dimensions.

    This(postscript) is the the original paper on the hardness of String Folding problems.

  22. Re:And so what if SETI did get a hit? by msheppard · · Score: 5, Interesting

    If we get one Seti hit and we may be able to replace ALL of our current problems with new ones.

    Earth: How do we cure cancer/every disease we know of?
    ET: Use *this*, but now that you're living forever, you have to worry about massive overpopulation.
    Earth: How do we get off this planet?
    ET: Use *this*, but now you have to worry about war between your planets.
    Earth: How do we achieve peace?
    ET: Use *this*, but now you're bored outta your minds.

    M@

    --
    Krispy Cream is people
  23. Comment removed by account_deleted · · Score: 5, Interesting

    Comment removed based on user account deletion

  24. Make money with folding@home! by Anonymous Coward · · Score: 4, Funny

    Slashdot reports "Folding@Home Reports Success"... you can too! That is right, with Folding@Home and Stuff@Home, you too can become $$$RICH$$$ with Envelopes@Home!! Send your $1 in and a SASE to us today!!

    This article was presented to you because you subscribe to the opt-in Slashdot site. If you no longer want to subscribe, please write "unsubscribe" on a $5 bill and send to Envelopes@Home. All removal requests honored.

    This article can not be considered spam because we provide an opt-out method per Bill S. 1618 TITLE III passed by the 105th U.S. Congress.

    This message is NOT intended for residents of WA, CA, or VA.

  25. Re:And so what if SETI did get a hit? by Anonymous Coward · · Score: 2, Insightful

    Hehe. Because of your comment, I'm going to take two of my machines that are currently running GIMPS clients (Great Internet Mersenne Prime Search) and run SETI@Home instead. I've got a desktop machine running Folding@Home, but if I see many more comments like this, I'm going to kill that one as well. (Hint: People can use their own spare CPU cycles on whatever they like.)

  26. People hate to see computers sit idle by jason99si · · Score: 5, Insightful

    I think what drives people to use these clients is simple. I have heard several "technically adept" (read: geek) friends state that they simply hate to see their computer sit idle.

    They have paid for the hardware, paid for the bandwidth, paid for the electricity. It should be doing SOMETHING. Even if it is just displaying flying toasters.

    1. Re:People hate to see computers sit idle by the_real_tigga · · Score: 2, Interesting

      Exactly.

      Plus, again very interesting for the geeky, even with a (lets be frank) stupid project like SETI, there is still the WHAT-IF factor.

      It may be an infinitesimal chance, but just imagine YOU were "the one". Rather alluring.

      --
      my .sig is better than yours.
    2. Re:People hate to see computers sit idle by zaren · · Score: 2

      That's a very good reason - why let the cpu sit idle (providing you're the type that never shuts your computer down), when it could be doing some good for somebody's science project?

      Of course, as far as rc5 was concerned, I was strictly in it for the cash :D

      --
      Come to the University of Mars! Classes starting soon!
  27. Wow! (was Re:Seti?) by BabyDave · · Score: 2
    Try a Google search for the Wow Signal

    (I presume that this is what they were referring to).

  28. Margin of error... by WestieDog · · Score: 2, Interesting

    The article Said: "Specifically, the computers predicted that one experimental protein would fold in 6 microseconds, while laboratory observations revealed an actual folding time of 7.5 microseconds. " That sounds quite a bit off to me, I guess I really don't understand any of this. I do however think it is very nifty to use extra cpu cycles for something other than 'HLT'.

    1. Re:Margin of error... by notanatheist · · Score: 2, Funny

      That's what happens when you fold with P4's and not Durons.

    2. Re:Margin of error... by Vijay+Pande · · Score: 4, Informative

      Actually, we're in the experimental error. Keep in mind that folding time distributions are exponentially distributed (not Gaussian). This means that the std devs will be big just by their nature. 7.5 vs 6 are indistinguishable statistically.

  29. Google Toolbar is now distributed. by teamhasnoi · · Score: 3, Informative
    Here is the link to the FAQ on Google's Toolbar which works on the folding@home problem. I guess this is old news, but I woke up the other day to find a new button on the toolbar. Clicking on that let me turn it on or leave it alone. Apparently, it is not on everyone's pc (my puter upstairs did not get the 'new!' button)

    Later, when folding@home has folded, the distributed power of the toolbar may be used to make a 'Super-Google' of sorts. (is that a pun?)

    1. Re:Google Toolbar is now distributed. by RadioheadKid · · Score: 2

      There's an article about the Google toolbar and Folding@Home on k5 too...

      --
      "Karma can only be portioned out by the cosmos." -Homer Simpson
  30. Re:And so what if SETI did get a hit? by the+gnat · · Score: 5, Insightful

    By the time Folding@Home or Genome@Home actually produce data useful enough to lead to medical cures, your wristwatch will be powerful enough to fold proteins in seconds. Don't confuse a nifty theoretical exercise with experimental science. Neither the technology nor the methods are sophisticated enough for this to be of any help to people with cancer etc. I wish someone would come up with a project that actually produced useful biological data with distributed computing. BLAST@Home, maybe. Doesn't sound nearly as sexy as protein folding, I guess.

    (You're still right about SETI, though. What a freakin' waste.)

  31. Google supporting Folding@Home by truesaer · · Score: 5, Informative

    I submitted this as a story, but it was rejected. Google has incorporated distributed computing into its toolbar as an option. The first supported project is Folding@Home, but they will add more projects in the future. Its optional, and currently has only been released to a few toolbar users. It will gradually be released to all users. Check it out at toolbar.google.com/dc/. Google is currently seventh in the team statistics...

    1. Re:Google supporting Folding@Home by nmrs · · Score: 2, Informative

      If you want to enable the distributed computing feature on the toolbar, but haven't got the new button, go here.

  32. Re:And so what if SETI did get a hit? by Atzanteol · · Score: 5, Funny

    *IF* SETI gets a hit, it will be more like:
    Earth: Wow, a spike that may have possibly been generated by an intelligent life form millions of years ago...
    ET: ???

    --
    "Ignorance more frequently begets confidence than does knowledge"

    - Charles Darwin
  33. Good results by ShooterNeo · · Score: 5, Interesting

    Well, on a related topic has anyone thought of this explanation for why SETI has found no results :

    Most current radios, based on decades old tech, broadcast a very orderly signal. It is confined to a narrow band range, only one transmitter is allowed per channel, the data being transmitted is uncompressed and so has many repeating orderly patterns.

    To increase capacity future radios will do the opposite.. They will broadcast compressed data that seems completely random, they will use a large swath of spectrum, they will repeat parts of the same signal across a large portion of the spectrum using a "chipping" algorithm. Even farther in the future, so many radios at once may be talking on the same spectrum that to identify a particular sender in order to communicate you'll have to use multiple antennaes and know his location (you'll share spectrum based on location).

    What is the end result of advanced communication gear that intelligent minds develop? What is the optimal result? To an outside observer the signal will seem like pure, almost totally random noise. Only to the electronics of a particular receiver that has the correct encryption and chipping key will it seem like anything else.

    THAT's why we can't hear anything. Trillions of sentient beings could communicate using this method and we wouldn't hear a thing.

    1. Re:Good results by Ektanoor · · Score: 2

      Only to the electronics of a particular receiver that has the correct encryption and chipping key will it seem like anything else.

      Interesting idea... And it could be quite truthful if a general path of progress forced civilizations to choose methods of communication with signals nearing background noises or pure white noise...

      Maybe it is would be a good idea to change the project into "Hack@SETI". However this could be dangerous. Imagine an orange being carrying two antennas, glasses, dressed on a Yuppie-like fashion and crying: I'm Bell Gadzes from Migrozoft Conglomeration, Red Moon, Vaxinton System, United Empires!.. You violated our DTCA (Digital Trillion Copyright Act)!! You will be assimilated!!!

    2. Re:Good results by jhines · · Score: 2

      There was an article a couple of weeks ago, on how SETI was going to use a new antenna, with much broader range to gather the raw data.

      To date, only a small fraction of the sky has been searched, this development was going to increase that tremendously.

    3. Re:Good results by De+Lemming · · Score: 3, Insightful

      Other civilizations will also go through evolution. So the earliest signals emitted will be the simple ones, and those will reach us first. If aliens detect signals from us at this moment, it will probably be radio or television emisions from decades ago. Marconi transmitted the first radio signal in 1901, but signals from those days are probably too weak to detect, even with technologies more advanced than ours. But earth's strongest transmitters like military radars are sending out signals since about 30 years.

      Also see this item in the Seti@Home FAQ.

    4. Re:Good results by ShooterNeo · · Score: 3, Insightful

      Who says we will be listening at this intersection of time and space? Current theory is that civilizations/intelligent life advance stupendously fast. Remember all the current progress has been made in 100 years...out of BILLIONS. It seems almost inevitable that in another hundred years this era will end (the era of humans) and simple radio signals unless used in a deliberate communication attempt are unlikely. So the odds that we would be able to pick up extremely weak signals from a developing civilization at a given time period of listening are so small to be negligable. The SETI project is being done for religious reasons. (not organized religion...just a general feeling that if we discovered intelligent life we would feel we had a purpose)

    5. Re:Good results by ediron2 · · Score: 2, Informative

      Your concern that we won't recognize complex wave methodologies (spread spectrum is one I can wrap my brain around, so I'll stop there) may be right.

      However, in addition to large elaborate schemes, we have several broadcast schemes that aren't likely to change and that are simple enough to detect: Telemetry (intentionally made repetetive since spectrum's cheap when you're talking to something a zillion miles away ( V'Ger) and its antenna is an ever-shrinking dot), and WWV (The US's atomic clock broadcast). Heck, our way of talking to already-gone objects like voyager *cannot* change.

      Similarly, a never-obsolete set of radar pings, carrier waves for TV and radio and *whatever* use, etc. are all just as vaguely possible. For example, WE MAY *NEVER* MANAGE TO KILL OFF FM OR SHORTWAVE BROADCASTS. And if, in this far-off civilization, two planets are settled, the first communication methodology geared to span interplanetary distances is going to be as simple as possible.

      Occams razor: Noise cancellation's first and easiest technique is redundant signal (carrier waves with frequency-modulation being close enough to fit this category). No matter what, there'll always be easy opportunities for this easy way out. Anything more complex without a good reason would be illogical (I wanted to say anything less would be uncivilized, but nobody'd remember the old ad campaign).

      I like your concern, though. It brings to mind a good question I'll be sending to SETI in a moment: Has SETI projected what we'll sound like in 50 or 100 years and seen how they'd score at considering us civilized if we're entirely spread-spectrum or worse by then?!

    6. Re:Good results by Torgo's+Pizza · · Score: 3, Insightful
      You make the false assumption that if there are aliens out there, they would be using some high technology to communicate with us. However, if some alien civilization is out there wanting to communicate with us, doesn't it make sense that they would try to do so in a common and basic manner? For example, look at what we Earthlings are doing to communicate with others.

      A lot of focus is made on SETI and listening for signals. We have in fact in the past sent signals to outer space with a specific message. In 1974, Frank Drake used the radio telescope at Arecibo, Puerto Rico to beam an elaborate coded message in the direction of globular star cluster M13. The message, coded in the binary notation of ones and zeros, contained 1679 bits of information. 1679 is the product of two prime numbers 23 and 73, which should suggest to an alien to break the message up into some combination of those two numbers. When the message is arranged in 23 columns of 73 bits each, and the zeros and ones are replaced by white squares and black squares. Coded into this pattern are from top to bottom: binary representations of the numbers 1- 10, atomic numbers of the five elements essential to terrestrial life, the chemical formula of the DNA molecule, numbers for the average human height and the world's human population, images of the human form, the solar system (with Earth displaced to indicate it is the planet from which the signal originated), and the transmitting radio telescope, with its diameter indicated.

      If, (and that's a strong if) there are aliens out there, chances are that we'd receive a simple radio signal rather than intercept B'lorg's phone call to Vk'lar.

    7. Re:Good results by ShooterNeo · · Score: 2

      *Ahem* All but the atomic clock signal would be transmitted more effectively if the beam is focused on the target. To communicate with a space probe, you would focus the signal at the dot not all over the sky (that's what we do now). To communicate with a distant planet you'd do the same thing. Carrier signal? That's a relic from analog transmission...those WILL go away. Remember, a T.V. station to work in analog has to gobble an ENORMOUS chunk of spectrum...enough for dozens of equivalent bandwidth digital channels or an almost infinite number with more advanced techniques. For the same reason, we would quit wasting spectrum with AM and shortwave...I'm sure you can cram thousands of times of much information in with better techniques. Redundant signal? Yes, that's still done with more advanced systems BUT the redundancy uses a "key" so the same symbol might get mapped to 50 different modulations split between the channels. Giving the same noise as before. Radar? I won't try to speculate on the future of radar but it would not surprise me at all if broadspectrum radars worked better and were harder to jam.

    8. Re:Good results by ShooterNeo · · Score: 2

      LOL to be honest, its more likely that the aliens would never figure out the message. How would they know the bits mapped to numbers? How would they know that 5 random seeming numbers referred to atomic elements? Or how would they understand a chemical formula? Human height/population is meaningless without a scale, images might work if it weren't almost infindesmally unlikely for them to understand that we meant pixels. No matter how smart the aliens were, a random seeming series of bits could mean anything.

    9. Re:Good results by ShooterNeo · · Score: 2

      Why am I not convinced of this argument? You shouldn't be, either. Your standards for comparison : human politics, "design complexity" (compared to what? Today's electronics, certainly), stupid consumers (they CAN use a VCR that sets its own clock), using obsolete designs because they still work; don't mean much. Do you really believe in a few centuries that any of these issues will still exist in there present form? Such a belief would be like thinking that problems with horse manure in city streets would be an ever present issue. You can't predict the future, and neither can I, but I CAN prove to you that the best possible radio scheme appears as completely random noise to outside observers. A point which you haven't disputed. I can also prove to you that there is an overall long term tendency for humans, and life in general, to use more effective solutions to a given problem. Obviously better radios are a more effective solution, and obviously shutting down radios that waste spectrum is also a good idea. 3 Kelvin is the correct answer. Thanks for the link to alterslash, I do agree that I would rather the moderation were done by people who knew something.

    10. Re:Good results by ShooterNeo · · Score: 2

      And my point was that none of these reasons are relevant. A few centuries, absolutely nothing compared to billions of years that have already passed, and none of these constraints will mean much. "easier" compared to what? Current radios are thousands of times more advanced than smoke signals. "cheaper" Umm cell phones already do some of this, they are semi-wideband devices. The fancy encoding can easily be done by a $10 chip with todays technology. "faster" A more advanced communication protocol transmit information faster "hassle of change". 10,000 times or better efficiency improvement is worth the hassle. Besides, even if the improvement were small over a period of centuries we'd do it anyway physics constraints : physics means it is possible to have every radio on earth sharing the same band. To sort out which transmission you want to listen to you have to know where the sender is located. You then electronically focus your antennae on that spot, blocking all the other senders.

    11. Re:Good results by ShooterNeo · · Score: 2

      The 10,000 times comes from the concept that thousands of users can share the exact same frequency (yes, even at 60 hz or lower though there wouldn't be much point) if the tuning hardware listens only to the signal coming from a particular point.

      That is, with thousands of people using the same frequency it appears to be totally random noise unless your receiver is focused on a spot perhaps a few hundred meters in diameter. To any outside observers this communication method would seem like noise. And yes, bandwidth is pretty much infinite using this method (between two parties it isn't but for the entire system it basically is), and no, regulation by government is not needed with this transmission method because its impossible to jam. Granted, you would require some sort of "hailing frequency" that would have to be policed, but once a communication session is started outside interference would be meaningless.

      I said a $10 chip with todays technology....in 20 years it very well might be a 3 cent part.

      Billions of years? Think again. There is a tremendous amount of evidence that technological progress is accelerating exponentially (and its been doing so even before humans existed on earth). Soon enough life from earth will hit the vertical part of the curve...advancing to the limits allowed by physics (if there are any.).

      Note I said life from earth, obviously I mean later improved versions of intelligent life, not humans.

  34. note to self by misterhaan · · Score: 2, Funny
    1. get lots of people to download screensaver
    2. use their spare cycles to do my computing
    3. ?
    4. profit!

    sorry, couldn't resist :)

    --

    track7.org has all kinds of interesting stuff!

  35. the reason folding@home has more success by Jonny+Balls · · Score: 2, Insightful

    You see... folding at home is going for a tangible goal... seti is... searching for ALIENS!
    I still prefer Seti@home, it looks cooler ;)

    --
    --JonnyBlog
  36. Re:And so what if SETI did get a hit? by Anonymous Coward · · Score: 2, Insightful
    Don't force your personal opinion on other people. Folding/Genome/SETI are different projects for different kinds of people. No offense, but you are in no position to tell people what to use their spare cycles for.



    And what about all the tens or hundreds of millions that aren't running anything?

  37. Re:And so what if SETI did get a hit? by Zathrus · · Score: 4, Insightful

    Hint: People can use their own spare CPU cycles on whatever they like

    Sure they can. That's not in question. But the theory behind the distributed clients is to avoid wasting CPU cycles and to do something useful.

    The point of the OP was that SETI@Home (and, frankly, RC5 crack searches) are osteniably no better than having the CPU cycles spinning anyway. Projects like Folding@Home, Genome@Home, and UD Cancer Research can provide a real, proveable benefit in both the short and long term. Mathematical projects like GIMPS and prime number searches do so as well, although my personal opinion is that they're not as valuable.

    Use your CPU cycles however you like. Hell, don't run a distributed project at all if you don't want to. All that's being asked is to consider how to actually use the spare cycles effectively if you're going to join a distributed project.

  38. The results were off by 20 percent! by zerofoo · · Score: 3, Insightful

    From the article:

    "Specifically, the computers predicted that one experimental protein would fold in 6 microseconds, while laboratory observations revealed an actual folding time of 7.5 microseconds."

    They missed the prediction by 1.5 microseconds. While that may not sound like much, that's 20 percent of the actual result.

    Are these considered good results? I'm no protein folding expert...but 20 percent seems like alot.

    -ted

    1. Re:The results were off by 20 percent! by skeedlelee · · Score: 3, Interesting

      That's pretty good. Lab to lab variation when repeating measurements like this is usually this bad or worse. Factor of two would have been reasonable. When comparing in silico work to experimental its usually considered good when you're within a factor of ten. More commonly a series of related proteins is ranked in order (by some property) and then compared to experimental measurements of said rankings.

      Also, keep in mind that this is a microsecond folding rate. Rates in the ms regime of folding are routinely measured with high accuracy, the microsecond regime is really hard as it usually takes longer than that to do what ever you're going to do to trigger folding in the first place. The number in the paper is 7.5us +/- 3.5us, so they got as close as could be expected.

    2. Re:The results were off by 20 percent! by tgibbs · · Score: 2

      In a purely theoretical prediction like this, I'm impressed if they even manage to come within a factor of two. It's easy to be off by orders of magnitude.

  39. Re:And so what if SETI did get a hit? by ckedge · · Score: 2, Interesting

    I ran folding for a couple months a year ago. I tried again in the spring for a couple weeks.

    Each time I quit and removed it from my system.

    Buggy installs, buggy software, buggy server statistics, unoptimized code, and a direct quote from Vijay that said "I don't care" about those issues because he already had enough people running the client for his purposes. Or at least that's my opinion of and the feeling that I was left with.

  40. folding@home and genome@home by jon787 · · Score: 2, Informative

    What I can't figure out is whether or not these are the same projects now!

    Of course since glibc 2.3.1 killed the folding@home client....

    --
    X(7): A program for managing terminal windows. See also screen(1).
  41. Re:.exe? by dr_dank · · Score: 2, Informative

    Yes it does. Be sure to set chmod +x $FILENAME.exe also.

    --
    Where does the school board find them and why do they keep sending them to ME?
  42. Sigh... IP? Anyone? by sjbe · · Score: 5, Insightful

    I've read the Folding@Home FAQ looking for information about what they plan to do (from an IP standpoint) with the information they get. The "answers" they provide are pretty vague on the details.

    Unlike other distributed computing projects, Folding@home is run by an academic institution (specifically the Pande Group, at Stanford University's Chemistry Department), which is a non-profit institution dedicated to science research and education. We will not sell the data or make any money off of it.

    Ok, they won't make any money off it, but who might? Who owns any patents? What actually is done with the data? And the non-profit bit tells me nothing. The Vanguard Group is a non-profit too, but that doesn't mean they aren't interested in money. (Vanguard is owned by the investors, hence non-profit, but not really) Just because it is a non-profit institution doesn't tell me much. Universities are non-profit but they make a ton of money off of IP. They can do whatever they want but before I commit my processor cycles to helping I'd like to know specifically what I'm helping.

    The FAQ goes on to say:
    Moreover, we will make the data available for others to use. In particular, the results from Folding@home will be made available on several levels. Most importantly, analysis of the simulations will be submitted to scientific journals for publication, and these journal articles will be posted on the web page after publication. Next, after publication of these scientific articles which analyze the data, the raw data of the folding runs will be available for everyone, including other researchers, here on this web site.

    So the data is going to be available. How? What "levels"? To whom? For how much? Just saying it will be published in journals tells me little. What else will be done with it? Who stands to benefit from the data? (aside from the obvious)

    Basically I want to know and am not impressed with their answers. I'd like some candor when it comes to something this important. With SETI@home, who really cares? That won't affect my life. Folding@home might.

  43. Re:You've got a point.......... by the+gnat · · Score: 2

    Well, to be fair, I don't think Folding@Home is useless (like SETI), just not particularly useful. I'm mainly just disappointed that people haven't put a lot of effort into distributed computing projects that actually have immediate scientific applications, and instead go wild over these stunts. I'm also more than a little peeved that people with little or no knowledge of structural biology, physics, chemistry, or scientific computing keep talking about how great protein folding simulation is.

    And, to give Pande some credit, I read the Nature paper and I thought it was interesting and a good proof-of-concept. I stand by my intial assessment of the long-term prospects of this kind of research, however.

  44. Good CS, good chemistry by skeedlelee · · Score: 5, Informative

    Well, I kinda agree and I kinda disagree.

    First, you can't expect to go from no success to complete success overnight. People have been trying to fold proteins for some time now and have basically failed because it is freakin' hard. The theory is in principle in place, a least to a first approximation, but the calculations are so intensive that they have basically beaten every comer. As an undergraduate I remember how everyone in the field thought getting bigger and better grants and buying bigger and bigger computers was the answer. Oh to be SGI in those days. They sum up the problem pretty well in the Nature paper, essentially a modern (desktop) computer would require a few decades to crunch through a single useful length simulation. Then you need to do it many times to get a useful answer (say 100-1000). Even supercomputers are going to balk at that kind of calculation. Moore's law what it is, we should then be able to get through an in silico simulation in a week on a single computer (when its this fast crystallography really will be dead) by, oh say 2040 at best. (somebody want to calculate that exactly, 10000yrs -> 0.02yrs is how many doubles). So yes, this hasn't gotten rid of x-ray crystallography just yet.

    But this is still really cool. Complaints about interface and maintenance aside, this was a great system. It relied on four pretty bright insights.

    First, that distributed computing is essentially the poor man's (cough, the academic's) super computer. Also, it automatically adapts itself to technological improvements. People will buy new computers from time to time and, hopefully, reload your software.

    Second, that there was no reason other than no one had sufficiently brute forced the process that the existing methods shouldn't work. They use a bunch of 'cheating' techniques to make this managable during the screen saver timescale, such as a united atom model (I think that means they ignore aliphatic hydrogens) and implicit solvent (don't treat it as individual solvent molecules, just a uniform field). It was an open question as to whether this approach would work at all or if you had to go over to much more explicit methods to get it to work at all. It appears that this has kinda worked with the cheater methods in place.

    Third, choice of a test case. Yes they chose something that was small. This isn't surprising. They wanted to be done sometime this decade, remember there is a graduate student as the primary author here. Small was necessary. However they also chose a FAST-FOLDING protein. That was clever. Basically, even with distributed computing, it is still hard to simulate a full microsecond of time. Thus they chose something that had some chance of completing its folding one the time scale that they could look at.

    Fourth, they remembered their P-Chem. It is really hard to run these things to completion... so they didn't. You don't have to run the simulation until 99% of the molecules have completely folded, just until an appreciable number have folded and you can extrapolate the behavior from that. They ran a 20ns simulation (at the longest). The thing takes 7us for ~60% to fold. As a result only once in a great ong while did one of the simulations actually produce a folded protein. But by doing it ~10000 times they could figure out how that translated into the rate constant. That's clever.

    That said, yes there is a long way to go on this, but its still a really clever paper. No we haven't cured cure cancer yet, but its still progress. And forget an in silico structure of the ATPase, that's largely understood already (check the RSCB/PDB there's a bunch). The real challenge will be getting a structure that size that hasn't been solved by other methods and convincing anyone else that you're right! Disclosure- I don't have PhD in this area yet, but I'm close.

    1. Re:Good CS, good chemistry by the+gnat · · Score: 2

      That said, yes there is a long way to go on this, but its still a really clever paper. No we haven't cured cure cancer yet, but its still progress. And forget an in silico structure of the ATPase, that's largely understood already (check the RSCB/PDB [rcsb.org] there's a bunch). The real challenge will be getting a structure that size that hasn't been solved by other methods and convincing anyone else that you're right! Disclosure- I don't have PhD in this area yet, but I'm close.

      Um, you sort of made my point for me. Crystallography is solving these structures now, and even if it isn't perfect it can do a hell of a lot more than the current computational techniques ever will. The range of structures that can be solved by this method keeps growing- less than a decade ago I doubt anyone thought structures for the potassium or chloride channels could be determined.

      I'm sure computing power will make it easy to simulate giant structures, but I still think the science behind this isn't good enough. How do you deal with chaperonins, transmembrane helix formation, association of subunits, functional conformational changes. . . sorry, but by the time the computational chemists figure out how to deal with these there may not be much of a point. And there's a huge difference between fold and atomic structure.

    2. Re:Good CS, good chemistry by tbuskey · · Score: 2, Insightful

      ... no one had sufficiently brute forced the process that the existing methods shouldn't work. They use a bunch of 'cheating' techniques to make this managable during the screen saver timescale....


      The essence of engineering when the math can't be done to completion. When I went to college (84-88, Mechanical Engineering) we had VAXen (11/785) and PCs. The 8MHz AT was just coming out. The 386 wasn't widespread until later.

      Here's the scene: You need to design an airplane wing. You have an equation to solve for harmonic vibration. You bring it to the math guys. They tell you it's an unsolveable differential equation. It's in this group of unsolveable ODEs. So, you can solve this. Meanwhile, you still have to design the wing and you have to make sure it doesn't vibrate off the plane from harmonic vibration like the Galloping Gurtie bridge did.

      So, you cheat. You might make the wing heavier and stiffer then it needs to be. In the 80's you reduced the calculus to those boxes to figure out the area under the curve. You make the boxes smaller & smaller until the answer is "close enough".

      Engineering doesn't solve everything to all decimal places. You round off. The moon shot only used 4 decimal places; much of it was done with slide rules.

      The trick with engineering is know when you "cheat" and aproximate and when you can't

  45. Can I join someone's team? by Isldeur · · Score: 3, Funny

    Hi, I'm the administrator for the big ASCI Purple cluster and, do to a lot of budget cutbacks, we have a lot of spare CPUs (like 30,000).

    Would anyone mind if I joined their team?

  46. SETI: let's hope aliens don't have lawyers by cant_get_a_good_nick · · Score: 5, Funny

    We can only hope that the aliens can actually legally send signals and aren't emcumbered by "Patent 1,345,821,098,836: sending signals encoded in high frequency waves to unknown lifeforms over the aether", and that they think the unknown lifeform receivers have a shot of decoding the signal without getting hit by "IGADCA - Inter-Galactic Age Digital Copyright Act: violations of decrypting the radio encoding".

    Hmm, maybe they have 8 arms and tentacles, and they'll just bite the lawyer's head off when they disagree with them.

    1. Re:SETI: let's hope aliens don't have lawyers by Rader · · Score: 2

      Or maybe they have 2 tentacles and 8 heads... all of them shouting "POint of Order!"

  47. This makes no sense, by treat · · Score: 2
    "One reason that protein folding is so difficult to simulate is that it occurs amazingly fast," Pande explained. "Small proteins have been shown to fold in a timescale of microseconds [millionths of a second], but it takes the average computer one day just to do a one-nanosecond [billionth-of-a-second] folding simulation."

    Who is this guy, and why does he make such an obviously false statement? Should this make me willing to trust these people and contribute to this process?

    If it takes one CPU-day to do 1ns of folding simulation, then protein folding is difficult to simulate because it occurs over a (relatively) long, not short time. This should be obvious, and therefore either the statement is either a deliberate lie or a misquote.

    1. Re:This makes no sense, by cant_get_a_good_nick · · Score: 3, Informative

      Wired had a good explanation on the problems inherent in predicting folding. IBM is building a big grid supercomputer to do this.

    2. Re:This makes no sense, by treat · · Score: 2
      What am I to make of the following statement from that Wired article, besides a profound ignorance of math and computing on the behalf of the author?

      , or 12 trillion floating-point operations (those that keep track of decimal places)

    3. Re:This makes no sense, by treat · · Score: 2
      Or this?

      then you have to multiply 3 by itself 100 times to get the number of possible shapes the chain might fold into. This is a big number - roughly speaking, the current age of the universe, squared. One hundred amino acids is a short protein.

      No units of time for the "age of the universe"? This number, by my math, is the age of the universe in microseconds. Surely this is a significant detail.
    4. Re:This makes no sense, by treat · · Score: 2
      Or this?

      cuts down the communications requirement by something like the square root of the number of atoms involved,

      Surely he means "to" and not "by", as they have opposite meanings.

    5. Re:This makes no sense, by cant_get_a_good_nick · · Score: 2

      Surely he means "to" and not "by"
      I'm pretty sure he means "by a factor of".

      To be honest, posting your editorial of the article here probably doesn't help much. You may want to write to the original authors if there are thigns you still need to clear up.

    6. Re:This makes no sense, by perrin5 · · Score: 2

      Umm,

      NO.

      Modeling is not the real world. If it were, we wouldn't need models, because we could just look at the source code, and see what was going on. The reason that it takes a cpu day to run a given simulation is because the computer is attempting to figure out what will happen next.

      This is not a real time simulation. This is a prediction program, there is some hefty math involved, and that math must be done for each time slice. The principle here is they gather information about the shape of and forces acting on the protein each time slice to predict what the protein will look like in the next time slice and then run the calculations for that one, ad infinitum until the protein is stable. So if this folding procedure takes 7 ns to run, and we model it by femtoseconds, that's 7 million time slices that the computer is modeling. so now, lets take a time frame for each slice. Let's pretend, for the sake of fun that it takes 2 seconds for each slice (optimistic in my view, but maybe it's a small protein).

      that's 7000000*2 seconds = 233,333 min = 3888 hours ~= 162 days.

      --
      hmmmm?
    7. Re:This makes no sense, by treat · · Score: 2

      What you say with does not contradict my point in any way. In fact, it stands in agreement with it. "7 million time slices" in your example because in relation to the resolution, it is a long (and not short) period of time.

    8. Re:This makes no sense, by treat · · Score: 2
      Thats why it's a problem, because you need very small timesteps to register the state changes properly.

      I know this, you know this. The point is that the author of the article I was referring to did not know this. He completely confused the issue. And if he lacks the basic understanding of what is being done, what else is he wrong about?

  48. New bumper sticker... by KFury · · Score: 3, Funny

    "I'm a Protein Folder and I VOTE!"

  49. Bah by ucblockhead · · Score: 2

    You mean, a success at running through a known mathematical algorithm that, unsurprisingly, got the expected result?

    This is a success in that it is actually advancing the state of human knowledge.

    --
    The cake is a pie
  50. Do They Get to Patent the Discovery? by FFFish · · Score: 2

    The public is helping with this research. Hell, the global public is helping.

    Who gets to hold any patents that arise?

    --

    --
    Don't like it? Respond with words, not karma.
  51. Re:To all you IDIOTS out there. by joshamania · · Score: 2

    Hear hear! We are agreed!

  52. Re:I fold at home AND MAKE $$$ by mraymer · · Score: 2, Funny
    Yes, my friend, you to can easily add THOUSANDS of $$$ per month to your income by folding@home. Just fold papers and stuff them into envelopes-- so easy I couldn't belive it! Before you think this is too good to be true...

    -end lame spam joke- ;)

    Seriously, this is cool. Perhaps having success in one area will lead the folding@home team to explore totally new areas, and have a breakthrough on something they never even planned to look at. With the recent end of RC5-64, I've switched to F@H, mainly because I feel that, in some small way, it helps to improve the human race.

    --

    "To confine our attention to terrestrial matters would be to limit the human spirit." -Stephen Hawking

  53. Comprehensive list of distributed projects by essdodson · · Score: 3, Informative

    A comprehensive list of distributed projects can be found here http://www.aspenleaf.com/distributed/

    --
    scott
  54. Re:Sigh... IP? Anyone? by whovian · · Score: 2

    This is why I never picked up on F@H. In contrast, the distributed.net projects state they will include your name in any meaningful results if you are the discoverer (and pay you an award).

    --
    To-do List: Receive telemarketing call during a tornado warning. Check.
  55. Current theory by Ted_Green · · Score: 2


    Frankly I'm not sure what I believe, or what "theories" have greater validity or not. Though I am inclined to agree with your conclusions (that it is unlikely to find a signal from a developing civilization)

    I do think however is that we (as people) tend to over generalize theories and often treat ideas (much as you said) as religions. We feel a great encompassing grand unified theory is somehow more appeasing than chaos. So we seek purpose in the universe, even should that purpose merely be an ordered cause and effect.

    Unfortunately I'm inclined to believe this kind of thinking leads to many slippery slopes. In this particular instance, explaining the whole arising of human civilization as a natural product of evolutionary terms. I'm not so certian this is the case (though I'd like to see theories [with supporting evidence of course] on it) certainly evolution could be said to have gotten the ball rolling and given us an opportunity to create a species able to developed a civilization, but what, I wonder are the probabilities of that happening?

    Until we have another sampling, a different evolutionary chain to compare to, saying that a "civilization" is a natural (that is to say a probable) product of evolution is as faulty as rolling an infinitely sided dice and saying the number it lands on it is always likely to land on.

    Only if we can show that evolution does not have an infinite possibility for creations and traits, can we really say there is likely another civilization somewhere. And sampling of one, just ain't going to cut it.

    I'm just blathering. =]

  56. I say this every time.... by Wiwi+Jumbo · · Score: 2, Interesting

    ...something about Distributed Computing pops up but since I don't have the skills myself I feel it's important to pollenate the minds of as many people as I can. I might just get lucky. ;)

    But anyways:

    What is needed isn't multiple clints for each project, but one client which can take plugin's for any project that's out there.

    Say you can't decide between Seti and Folding @Home projects, why not divide up the work units? For every 1 Folding unit you could to 3 smaller Seti units. That way you can help every group that you want. And if one group has problems you don't wait for days to get a new unit, you can just start on another group.

    I'm just not sure how pretty screensavers would turn out with a plug-in method. :)

    O.k... I'm done, you can go and ignore me now. ;)

    --
    Wiwi
    "I trust in my abilities,
    but I want more then they offer"
  57. 10000yrs - 0.02yrs by oliverthered · · Score: 2

    10000/0.02 = 5000000
    log2 = just less than 19
    Applying moors law to the earth simulator in japan might be a better Idea than applying it to a desktop PC.
    I've never seen desktop x-ray crystallography.

    --
    thank God the internet isn't a human right.
  58. Re:And so what if SETI did get a hit? by jafiwam · · Score: 2, Insightful

    No.

    Here's why:
    • Greedy pharmaceutical companies benefit from them, they'll get my cycles when that "patent natural genes" crap stops, until then, they can buy their own damn computers.
    • SETI has been around longer, and I simply enjoy watching the numbers get bigger. Other projects would make me start over.
    • Want to do something effective to save lives? Tell the morons around you to wear seatbelts, or stop driving drunk, or maybe tell them fearing vaccinating their children is stupid.
    • Signals from ET would make a huge metaphysical impact on our society, and I for one want to see the fun of the Christians/Hindus/Muslems/etc. struggle with a demonstration of how retarded they really are.

    If all the "yahoos" stopped crunching SETI, it WOULD go away. So you DO wish for it to go away. Let the MAC freaks do the annoying evangelizing, they are better at it.

  59. It's really very simple. by Dthoma · · Score: 2

    SETI@home was around first. That's why it has more users. It's the old faithful that most people know about. (Compare distributed.net to SETI and see how much the public knows about either.)

    --

    Note to M1-ers: a curt but otherwise insightful message is not "Flamebait" or "Troll".

  60. What has been done by WillWare · · Score: 2
    Reading the MSNBC article would lead you to think that the only thing accomplished by folding@home has been a feasibility test with a toy (non-biological) protein. The results page (see Google cache) shows dozens of simulation runs, including some of clinical significance.

    The big win with the toy protein is that it allows for experimental verification of the validity of data produced by FAH clients. That's a good thing, because biochemists are very suspicious of simulations and tend to ignore them until there's compelling correlation with results from a real lab.

    Hopefully this will substantiate a large number of already-done simulations, or at least put them in a position where they suggest some very small amount of lab work to verify an interesting result.

    To the folks complaining that only the big pharmas will benefit: This stuff is being done in academia. Would you prefer the big pharmas did it internally and there was NO CHANCE AT ALL for the results to make it into the public knowledge base? Be realistic - you KNOW the big pharmas will be the big winners on anything like this - that's the business they're in. For the rest of us, the best hope is to hasten the day when cheap generics of the resulting drugs are available for low-income patients.

    I question the thinking that much would be gained by fighting the big pharmas (quite aside from the complete ineffectiveness of a typical /.er in doing so). They are bearing the research costs for the drugs, as well as the expense of pushing them thru the FDA pipeline. Open-source bazaar-style development will not work for new drugs, no matter how much we wish it would.

    --
    WWJD for a Klondike Bar?
  61. I would run it, but... by inkfox · · Score: 2

    I'd run the folding project, but the source is closed. I've got a lot of machines with spare cycles, but I sure don't want to grab some bit of code and run it 24/7 if I'm not free to peek under the hood in exchange.

    --
    Says the RIAA: When you EQ, you're stealing bass!
  62. Re:And so what if SETI did get a hit? by Zathrus · · Score: 2

    The only reason I can think of is for cryptography purposes.

    My personal opinion (again) is that it's a fairly bunk reason to spend CPU cycles on - it doesn't really enhance cryptography much, and modern crypto is either secure enough for a long, long time or it's doomed to insecurity no matter what (which viewpoint you take depends on how successful you believe quantum computing will be).

    Of course, I'm not a mathmatician either, so I may be missing out on other practical uses for large primes.

  63. chroot anyone? by runswithd6s · · Score: 2
    You (the reader) may not agree in the general distrust I have for binary applications from third parties, but I would rarely run one of these applications outside of a chroot environment. There is an implicit trust that the software provider is only working under your best interests, but can you truly trust someone you don't know personally or someone who won't guarantee that their program won't destroy your OS installation?

    My general attitude about such software is to give it a shot, but only in a chroot jail. This particular software, the Folding@home binary, has been unsuccessful in running under such an environment. It will start running, but it won't retrieve data sets from the servers.

    Whose loss is this? Not mine. If I can't get something running in a satisfactory environment after spending a reasonable amount of my valuable time on it, I don't run it.

    Has anyone had success in running the Linux binary in a chroot?

    --
    assert(expired(knowledge)); /* core dump */
  64. Not to troll, but... by jpt.d · · Score: 2

    If we all donate our computer time for this and then we help figure out how {whatever the target is} works - what will stop the medical companies from patenting and sucking our wallets for treatments later on?

    --
    What we see depends on mainly what we look for. -- John Lubbock Now search for that bug slave!
  65. Pls mod up parent.... by anonymous+cupboard · · Score: 2

    This is a good point. Full simulation is very difficult, but where are the manual tweaks on a protein molecule? Do we know the problem envelope well enough? There is a lot of 'domain knowledge' on airframe engineering, but are we there for protein molecule folding?

  66. Re:And so what if SETI did get a hit? by ckedge · · Score: 2

    > Vijay means well

    True, and he probably doesn't need 500,000 clients, so no big deal. Better that his efforts go to analyzing the output than trying to make something so perfectly stable and run that it attracts more CPUs than his group can handle...

    I think I used the word buggy too many times, I was never driven to anger. It just wasn't worth it to keep running it, as far as I was concerned. No hard feelings and no harm done, well not too much. My time is in fact relatively cheap ;)

  67. Still detectable.... by Goonie · · Score: 2
    Even if we discard all our simple radio gear and go with all this funky stuff that emits "random noise", surely that doesn't make us undetectable to a long-term observer. If you were observing the sun with a radio telescope, you'd notice this unusual amount of radio noise that varies according to a 24-hour (approximately) cycle, again for no apparent reason. Wouldn't you?

    Sure, that's a lot harder than pointing a telescope at the Sun and having "HELLO WORLDS" coming at you in Morse Code on a single frequency, but it's still possible.

    --

    Any sufficiently advanced technology is indistinguishable from a rigged demo
    --Andy Finkel (J. Klass?)
  68. Re:Sigh... IP? Anyone? by whovian · · Score: 2

    Yes, of course, you are right. Gosh, my phrasing was horrible. My motivation was not rooted in egotism. Really.

    My main concern with F@H and S@H is that their central question is not based on a falsifiable hypothesis. These projects are basically open-ended or exploratory searches. It could very well be true that there exist(ed) alien civilizations, while at the same time it can also be true that we may never detect them. Resource after resource can be put into something whose progress you really cannot evaluate. Still, neither project is entirely in vain because it can produce some results, information, or guides for how to proceed. With such projects, obtaining any single positive result is remarkable.

    --
    To-do List: Receive telemarketing call during a tornado warning. Check.