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(Purdue University)   Something the Pentium could do in 1997 is suddenly all the rage   (purdue.edu) divider line 24
    More: Strange, Pentium, embedded devices, data mining, managements, computer engineering, Professors in the United States, IEEE, computing  
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6783 clicks; posted to Geek » on 19 Dec 2013 at 8:26 AM (31 weeks ago)   |  Favorite    |   share:  Share on Twitter share via Email Share on Facebook   more»



24 Comments   (+0 »)
   
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2013-12-19 08:22:04 AM
That's not funny, subby. Lots of people died because of that error.
 
2013-12-19 08:31:34 AM
Banks to start using this to 'accidentally' over charge you in 3...2...1...
 
2013-12-19 08:34:29 AM
I've got to say, I'm not sure I understand. Isn't this essentially what floating-point numbers already do? What makes "approximate computing" any different?
 
2013-12-19 08:47:01 AM

Millennium: I've got to say, I'm not sure I understand. Isn't this essentially what floating-point numbers already do? What makes "approximate computing" any different?


Also fuzzy logic, constrained greedy algorithms, and probably a bunch of other stuff.
 
2013-12-19 08:49:16 AM
I hope you guys realize that there's no way to turn off a quantum computer.....
 
2013-12-19 09:21:01 AM

SpdrJay: I hope you guys realize that there's no way to turn off a quantum computer.....


We could send in Schrödinger's cat to do that

...or not.

WhyNotBoth.jpg
 
2013-12-19 09:51:15 AM
I'm not one of those computer science types, but...

Aren't they essentially describing what the normal GPU already does?  Not care about 100% accuracy but pound out mostly-good math like it's nobody's business?
 
2013-12-19 09:52:12 AM

LeroyB: SpdrJay: I hope you guys realize that there's no way to turn off a quantum computer.....

We could send in Schrödinger's cat to do that

...or not.

WhyNotBoth.jpg


Bravo.
 
2013-12-19 10:37:26 AM
Accuracy isn't job #0.999999999999984197 any more.
 
2013-12-19 10:47:51 AM
Approximation theory has been around for a while.  You're probably currently using Fourier transformations in some way every day.
There's been a lot of work recently with getting some bleeding edge stuff into matlab.  It's interesting stuff if you're into that sorta thing.
 
2013-12-19 11:09:45 AM
Will it help me mine biatchcoins faster?  On my ole Pent I's and II's? Sweet, ka~ching...
 
2013-12-19 12:45:13 PM
Didn't we *stop* using this because of the problems it caused? Pretty sure we did...
 
2013-12-19 01:21:22 PM
jaypgreene.files.wordpress.com

Someone found out about fuzzy logic and coined a new term, good for you Purdue.  "Approximate computing" isn't new.  At least the article could have mentioned quantum computing...
 
2013-12-19 01:34:51 PM

Swampmaster: Will it help me mine biatchcoins faster?  On my ole Pent I's and II's? Sweet, ka~ching...


With all the talk of them, how have I never seen someone get filterpwned before?
 
2013-12-19 01:59:23 PM

SpdrJay: I hope you guys realize that there's no way to turn off a quantum computer.....


Sure you can. Drop the bad-boy to absolute zero.
 
2013-12-19 02:00:23 PM

Swampmaster: Will it help me mine biatchcoins faster?  On my ole Pent I's and II's? Sweet, ka~ching...


You may earn more reclaiming the gold out of those cpus.
 
2013-12-19 03:03:32 PM
I haven't read the entire abstract, and certainly not the actual paper, but given that binary arithmetic is typically implemented with O(1) performance, I'm not sure I see how intentionally discarding precision when it's unnecessary could actually have benefits.  (Or at least, I don't see how the overhead involved in figuring out when precision is unnecessary would be earned back.)
 
2013-12-19 03:05:40 PM

poot_rootbeer: I haven't read the entire abstract, and certainly not the actual paper, but given that binary arithmetic is typically implemented with O(1) performance, I'm not sure I see how intentionally discarding precision when it's unnecessary could actually have benefits.  (Or at least, I don't see how the overhead involved in figuring out when precision is unnecessary would be earned back.)


You shave a bit here, a bit there. Soon you're talking about significant bits.
 
2013-12-19 03:34:48 PM

Swampmaster: Will it help me mine biatchcoins faster?  On my ole Pent I's and II's? Sweet, ka~ching...


biatchcoins?
 
2013-12-19 07:23:30 PM

0100010: Someone found out about fuzzy logic and coined a new term, good for you Purdue.  "Approximate computing" isn't new.  At least the article could have mentioned quantum computing...


Or more likely they are smarter than you and you missed something.
 
2013-12-20 03:51:56 AM

SacriliciousBeerSwiller: 0100010: Someone found out about fuzzy logic and coined a new term, good for you Purdue.  "Approximate computing" isn't new.  At least the article could have mentioned quantum computing...

Or more likely they are smarter than you and you missed something.


On a website based in Kentucky, I'm sure you'll find plenty of folks who think those across the river in Indiana aren't so bright.
 
2013-12-20 10:39:29 AM

dbirchall: SacriliciousBeerSwiller: 0100010: Someone found out about fuzzy logic and coined a new term, good for you Purdue.  "Approximate computing" isn't new.  At least the article could have mentioned quantum computing...

Or more likely they are smarter than you and you missed something.

On a website based in Kentucky, I'm sure you'll find plenty of folks who think those across the river in Indiana aren't so bright.



How many intelligent Hoosiers does it take to change a light bulb?

BOTH OF EM!!!!

/zing
 
2013-12-20 02:52:14 PM
Is this headline in reference to the FDIV bug?  Wasn't that discovered a long time before 1997?
 
2013-12-20 08:18:28 PM

FaygoMaster: Is this headline in reference to the FDIV bug?  Wasn't that discovered a long time before 1997?


I have it on very good authority that Subby only remembered the F00F bug and confused it with FDIV.
 
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