Bitcoin Forum

As part of AWS’s Free Usage Tier, new AWS customers can get started with Amazon EC2 for free. Upon sign-up, new AWS customers receive the following EC2 services each month for one year:

    750 hours of EC2 running Linux/Unix Micro instance usage
    750 hours of Elastic Load Balancing plus 15 GB data processing
    10 GB of Amazon Elastic Block Storage (EBS) plus 1 million IOs and 1 GB snapshot storage
    15 GB of bandwidth out aggregated across all AWS services
    1 GB of Regional Data Transfer

Micro Instance 613 MB of memory, up to 2 ECUs (for short periodic bursts), EBS storage only, 32-bit or 64-bit platform

sudo yum -y groupinstall "Development Tools"
sudo yum -y install git libcurl-devel python-devel screen rsync

git clone https://github.com/ArtForz/cpuminer.git
cd cpuminer
./autogen.sh
./configure
make -j
nohup ./minerd --algo scrypt -s 6 --threads 2 --url http://yourpool --userpass user:pass

[2011-11-02 21:14:38] LONGPOLL detected new block
[2011-11-02 21:14:38] thread 1: 1664 hashes, 0.03 khash/sec
[2011-11-02 21:14:38] thread 0: 525 hashes, 0.03 khash/sec
[2011-11-02 21:15:06] thread 0: 1647 hashes, 0.06 khash/sec
[2011-11-02 21:15:07] thread 1: 1581 hashes, 0.06 khash/sec
[2011-11-02 21:15:08] thread 0: 3696 hashes, 1.41 khash/sec
[2011-11-02 21:15:10] thread 1: 3385 hashes, 1.22 khash/sec
[2011-11-02 21:15:10] thread 0: 2281 hashes, 1.16 khash/sec
[2011-11-02 21:15:10] PROOF OF WORK RESULT: true (yay!!!)
[2011-11-02 21:15:12] thread 1: 2707 hashes, 1.13 khash/sec
[2011-11-02 21:15:12] PROOF OF WORK RESULT: true (yay!!!)

So you get 1.5 KH/s for 750 hours, which is equivalent to 1.125MH/s for 1 hour, or about 0.00004166 BTC.

I seriously hope no one wastes their time with this!  It's a nice thought OP, but it really isn't worth anyone's time.

Its for mining scrypt and Litecoin not BTC

apt-get update;apt-get install -y libcurl4-openssl-dev;apt-get install -y git;apt-get install -y make;apt-get install -y autoconf;git clone https://github.com/Lolcust/Tenebrix-miner.git;mv Tenebrix-miner /opt/;cd /opt/Tenebrix-miner/;aclocal;./autogen.sh;CFLAGS="-O3 -Wall -g -ftree-loop-distribution -fstrict-aliasing -fstrict-overflow -march=native -mtune=native -msse2"

You need all the SSEs in there, not just SSE2.  It makes a huge difference.

Thats why i do -march=native -mtune=native which enables them all, -msse2 is just a habit. In any case, ALL i got and i mean from ALL the optimization i tried, just 0.50kh/s

And i also use a 64bit linux, which is supposed to be faster than 32bit OS

Not to mention that there is extreme load balancing in the micro instance. You mine at full speed for a few seconds and then you get reduced to 0.02 or less KH/s

Above you quoted an install line for Tenebrix.  This thread is about Litecoin.  Is it possible your shitty Tenebrix miner is to blame for your speeds?

yes, I have edited it at the same time, it should be artfortz.

Thanks for the tip for confgiure. I am getting up to 1.41 khash/s now, almost the same as my own i5:

I tried march=native, it didn't do any better than just using SSE2 for me.
Specifying all the SSEs as well as AVX (I was using a 2600k) made a big difference.

You seem to have misunderstood the thread. It's about Amazon EC2 computing. I.e rented computers, not a personal computer.

You guys do understand that you only get so much processor time/power per month under that free account. After the limit is passed, you will start getting billed.

Has anyone done the math to see if mining Litecoin would be profitable on an Amazon EC2 High-CPU Extra Large (8 cores)?  On-demand pricing is $0.68/hr and and spot pricing is $0.216/hr.

I've tried it. It says it has 8 cores, it had only 3...no really, just 3 cores. The Cluster Compute Quadruple Extra Large however has 8 real physical cores, not limited, however it's priced at 1.60 per hour.

Damn damn double damn.  Time to build a server at home with hexacores in it or something.

100% agree with this. Maybe on Litecoin wiki if that exists etc. !?

Just made the page: https://github.com/coblee/litecoin/wiki/Mining-hardware-comparison
I think you need a github account to edit? I'm not sure. Try and see.

A valid credit card is required to sign up. See offer terms

Calculations for the free EC2, assuming a generous speed of 1.5 khash/s:

Using http://allchains.info/calc.html tells me that you get 3.961 coins per day, or if you use 750 hours, 750*3.961/24 = 123.78125 LTC
At the current exchange rate (~0.01 BTC/LTC) that gives 1.237 BTC, or (3.25 USD/BTC) about 4 dollars. In total.

Obviously, if you get the more expensive EC2, even with 8 cores, it's not worth the money, as you get about 4/750 = 0.0053 dollar per core per hour. The LTC/difficulty ratio would need to increase ~5 times for this to be beneficial, assuming you actually get 8 cores at $0.216/hr.

You guys do understand that you only get so much processor time/power per month under that free account. After the limit is passed, you will start getting billed.

What do you need a Github acct for?

has anyone tried this?

how much did you get out?
and how much is the equivalent in BTC?

cheers

I've been mining on the micro instance for a couple days now.  I'm not getting much out of it.  The speed fluctuates wildly.

Free tier has 750 hours of EC2 running Linux/Unix Micro instance usage per month. So if you have one micro instance you can use it all month 24/7 for free.

Micro Instances - Instances of this family provide a small amount of consistent CPU resources and allow you to burst CPU capacity when additional cycles are available. They are well suited for lower throughput applications and web sites that consume significant compute cycles periodically. Micro Instance 613 MB of memory, up to 2 ECUs (for short periodic bursts), EBS storage only, 32-bit or 64-bit platform.