Crowdsourcing Bruteforcing: Help me win the EngineYard challenge • Hacker News Board

Re: Crowdsourcing Bruteforcing: Help me win the EngineYard challenge

#51

Post by andreyf » Mon, Jul 20, 2009, 9:40 PM UTC

alexgartrell wrote: post #43

As a CPU contributor, I demand that you give us stats as to which browsers were the fastest for your computation! This could be an interesting comparison point for the bundled javascript engines. (Maybe :))

Heh, I'm not sure if it would be representative of a good benchmark, but it might be exciting to see how many hashes each browser has contributed ;)

Re: Crowdsourcing Bruteforcing: Help me win the EngineYard challenge

#52

Post by dmillar » Mon, Jul 20, 2009, 9:43 PM UTC

jacquesm wrote: post #2

Have you compared running your code in JS on an ad-hoc cluster like this vs running it in optimized C on a local machine ?

Not running C directly, but getting about 200,000 iterations per second running through an Nvidia GPU through CUDA and the Python wrapper PyCUDA.

Re: Crowdsourcing Bruteforcing: Help me win the EngineYard challenge

#53

Post by imok20 » Mon, Jul 20, 2009, 9:57 PM UTC

Fantastic! 10 tabs open in Safari 4 @1ms using (I second, or third, the browser-war idea.)

Re: Crowdsourcing Bruteforcing: Help me win the EngineYard challenge

#54

Post by mrtron » Mon, Jul 20, 2009, 9:59 PM UTC

I wouldn't install an app to help you out.

I wouldn't leave it running if you killed my processor.

But you made it painless, so you get at least a few hours of runtime on me @ 1ms.

Re: Crowdsourcing Bruteforcing: Help me win the EngineYard challenge

#55

Post by petercooper » Mon, Jul 20, 2009, 10:01 PM UTC

Someone on Twitter claimed this entry has already got the 0:

http://twitter.com/rikfaith/statuses/2743945177

I have no way to check. True or not?

Re: Crowdsourcing Bruteforcing: Help me win the EngineYard challenge

#56

Post by schnalle » Mon, Jul 20, 2009, 10:08 PM UTC

mbrubeck wrote: post #11

fsniper wrote: post #10

Earlier quoted context omitted.

Well on my dual core, opening a new tab could not fire up the other core. Opening opera side by the firefox did the trick.

I've got two tabs in Chrome using two CPU cores.

17 chrome tabs@1ms ~95%

Re: Crowdsourcing Bruteforcing: Help me win the EngineYard challenge

#57

Post by schnalle » Mon, Jul 20, 2009, 10:18 PM UTC

alexgartrell wrote: post #43

As a CPU contributor, I demand that you give us stats as to which browsers were the fastest for your computation! This could be an interesting comparison point for the bundled javascript engines. (Maybe :))

chrome definitley wins. but i think, (tracemonkeys) tracing could be THE feature in this case. lots of unrolled loops ... hopefully mozilla gets more out of it over time.

Re: Crowdsourcing Bruteforcing: Help me win the EngineYard challenge

#58

Post by Oompa » Mon, Jul 20, 2009, 10:21 PM UTC

petercooper wrote: post #55

Someone on Twitter claimed this entry has already got the 0: http://twitter.com/rikfaith/statuses/2743945177 I have no way to check. True or not?

Not true, distance of 38.

Re: Crowdsourcing Bruteforcing: Help me win the EngineYard challenge

#59

Post by Klonoar » Mon, Jul 20, 2009, 10:43 PM UTC

Eh, I'll leave it on my PowerMac overnight. Just fyi, I've donated the following browsers...

OS X: Safari, Firefox 3.5, Webkit Nightly, Chromium Nightly, Opera 10 beta 2, Shiira, Camino 2, Seamonkey, Sunrise, Flock

Then I have 3 virtual machines open...

Windows XP #1: Firefox 3.5, Chrome, Internet Explorer 6 (Dev testing bed, not upgrading, but take it anyway), Opera 9, Maxthon 2 (Surprised I even had it)

Windows XP #2: Firefox 3.5, Chrome, Internet Explorer 7, Opera 9, Maxthon 2

Windows XP #3: Firefox 3.5, Chrome, Internet Explorer 8, Opera 9, Maxthon

I'd donate an Ubuntu VM or two, but... they don't wanna start up at this point. shrug

This may not help, I dunno, but I'm certainly not using the computer. Have a blast, and good luck!

Re: Crowdsourcing Bruteforcing: Help me win the EngineYard challenge

#60

Post by randomwalker » Mon, Jul 20, 2009, 10:45 PM UTC

Let's keep some perspective here folks. The idea is cool and all, but as discussed in the other thread, SHA-1 throughput on GPUs is between 200 million and 600 million per second, depending on the GPU (http://forums.nvidia.com/index.php?s=&showtopic=102349&#...). On the other hand, the maximum throughput that people are getting with JS is about 3000/second. Which is a hundred thousand times slower.

I think it is safe to conclude that browser-based crowdsourcing is not a compelling approach to numerical computation.