MD5 Hash Collision on AWS in 10 hours, for $0.65

#1

Post by privong » Wed, Nov 05, 2014, 5:04 PM UTC

MD5 Hash Collision on AWS in 10 hours, for $0.65
arstechnica.com

Re: MD5 Hash Collision on AWS in 10 hours, for $0.65

#2

Post by Someone1234 » Wed, Nov 05, 2014, 5:32 PM UTC

Where does $0.65 come from? He says he ran it for:

> I found that I was able to run the algorithm in about 10 hours on an AWS large GPU instance bringing it is at about $0.65 plus tax.

According to Amazon's AWS calculator running an on-demand GPU instance (they only offer one type) for 10 hours comes to $6.50. They're $0.65 PER HOUR. It didn't take one hour to do.

Even if he has a reserved instance it likely won't be $0.65 for 10 hrs since you still need to calculate out the cost of setting up the reservation ($200+/year).

Re: MD5 Hash Collision on AWS in 10 hours, for $0.65

#3

Post by infecto » Wed, Nov 05, 2014, 5:58 PM UTC

Someone1234 wrote: post #2

Where does $0.65 come from? He says he ran it for: > I found that I was able to run the algorithm in about 10 hours on an AWS large GPU instance bringing it is at about $0.65 plus tax. According to Amazon's AWS calculator running an on-demand GPU instance (they only offer one type) for 10 hours comes to $6.50. They're $0.65 PER HOUR. It didn't take one hour to do. Even if he has a reserved instance it likely won't be…

Spot instances bro. Current Oregon cost for GPU instance is $0.1201. All that work and you did not look at spot instances?

Re: MD5 Hash Collision on AWS in 10 hours, for $0.65

#4

Post by Someone1234 » Wed, Nov 05, 2014, 6:06 PM UTC

infecto wrote: post #3

Someone1234 wrote: post #2

Where does $0.65 come from? He says he ran it for: > I found that I was able to run the algorithm in about 10 hours on an AWS large GPU instance bringing it is at about $0.65 plus tax. According to Amazon's AWS calculator running an on-demand GPU instance (they only offer one type) for 10 hours comes to $6.50. They're $0.65 PER HOUR. It didn't take one hour to do. Even if he has a reserved instance it likely won't be…

Spot instances bro. Current Oregon cost for GPU instance is $0.1201. All that work and you did not look at spot instances?

Calling someone "bro" who you don't know is disrespectful.

Also even by your own figures the $0.65+tax figure is incorrect. At $0.1201/hour it is $1.201+tax.

Re: MD5 Hash Collision on AWS in 10 hours, for $0.65

#5

Post by hanumantmk » Wed, Nov 05, 2014, 6:39 PM UTC

Someone1234 wrote: post #4

infecto wrote: post #3

Earlier quoted context omitted.

Spot instances bro. Current Oregon cost for GPU instance is $0.1201. All that work and you did not look at spot instances?

Calling someone "bro" who you don't know is disrespectful. Also even by your own figures the $0.65+tax figure is incorrect. At $0.1201/hour it is $1.201+tax.

The gpu spot instance price is 0.1201 for windows hosts. Linux hosts however are currently running $0.0641 an hour. Which makes $0.65 utterly believable.

Re: MD5 Hash Collision on AWS in 10 hours, for $0.65

#6

Post by Someone1234 » Wed, Nov 05, 2014, 6:43 PM UTC

hanumantmk wrote: post #5

Someone1234 wrote: post #4

Earlier quoted context omitted.

Calling someone "bro" who you don't know is disrespectful. Also even by your own figures the $0.65+tax figure is incorrect. At $0.1201/hour it is $1.201+tax.

The gpu spot instance price is 0.1201 for windows hosts. Linux hosts however are currently running $0.0641 an hour. Which makes $0.65 utterly believable.

I'm not seeing $0.0641. I am seeing $0.1201 for Linux hosts in the area specified (Oregon). What area are you seeing GPU instances for $0.0641/hour?