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[modpost] Possible wiki page, something I call "All about miners," covering things from basic terminology to miner config files and overclocking.

What is a miner?
A miner is a computer set up to solve cryptographic hashes in the litecoin network. Once a clump of these hashes, or a block, is mined, litecoins pop out! It's like opening a box of chocolates, except you know what you're gonna get :) Miners also handle transaction confirmations, making sure no single coin is double-spent.
Setting up your computer to be a miner
What kind of computer do I need?
Optimally, you'd have a good power supply and a couple decent Radeon/ATI/AMD graphics cards. Because of litecoin's hash algorithm, the gap between mining with graphics cards and processors is less than with most other cryptocurrencies, meaning that mining with some desktop processors may be worth it after electricity costs. Note that mining with laptops is not recommended because of the heat generated by mining, and mining with NVIDIA graphics cards may not be worth the cost.
How do I know if litecoin mining will be profitable for me?
First, check how fast you'll be mining with your hardware, how many litecoins you'll mine in a day, and how much litecoins are worth. Now, multiply the number of litecoins per day by their worth. Then, find out the power draw of your hardware, and calculate energy cost. Then finish by subtract energy cost from your daily earnings. If your number is positive, you're making that much money per day. If negative, you're losing money.
Keep in mind that the worth of litecoins goes up/down, and you have to earn the cost of your hardware before you churn a profit. Mining difficulty also goes up/down, depending on how many people are mining how fast in relation to how many litecoins are supposed to be generated how fast. See the economics(coming soon) post for more info.
Okay, I did all that. How do I start?
All you have to do is download a program and change some settings (later in the guide), and you're ready to go. If you're comfortable with configurations and the command line, Reaper and cgminer are your best friends. Otherwise, GUIMiner-scrypt is right for you. If you want to mine on your processor, download the "batteries included" miner via this link and setup should be relatively self-explanatory.
Do I mine alone?
Due to the difficulty of mining, we recommend that you mine with a pool where multiple people mine together. Visit your pool's about or help page for proper miner settings, which we're about to get to in-depth!
Under the hood
Configuring your miner (aka the hard part)
Before we get started, you should become familiar with these terms:
None of those will have any affect on how fast you mine. The settings that we'll be focusing on are:
If you're using GUIMiner-scrypt, there are default settings for different cards (lower right dropdown). I'm mining on a 7870. Here is what it looks like for me. You can follow along with the rest of this guide to optimize your settings. GUIMiner-scrypt is just a GUI to cgminer and reaper anyways.
If you are using a command-line miner, like reaper and cgminer, I recommend you download and isntall Notepad++ or SublimeText if on Linux.
Reaper is currently considered to be the best tool for mining. After you unzip your downloaded file, in the folder you'll find reaper.conf. It should look something like this:
kernel reaper.cl save_binaries yes enable_graceful_shutdown no long_polling yes platform 0 device 0 #mine bitcoin mine litecoin #mine solidcoin 
This will make it mine litecoin on your first graphics card and reference litecoin.conf, which for me looks like
host us-pool.give-me-ltc.com port 8080 user poolusername.1 pass anything protocol litecoin worksize 256 vectors 1 aggression 18 threads_per_gpu 1 sharethreads 32 lookup_gap 2 gpu_thread_concurrency 15380 
As you see, my thread concurrency is slightly different from the default of GUIMiner-scrypt. I found that this concurrency gives me the best hashrate!
NOTE: I do not use cgminer to mine litecoin. If you plan on using cgminer, which offers more hardware-controlling settings, in the cgminer folder you will want to create a text file. Then, open that text file w/ Notepad++ or SublimeText, then Save As > cgminer.con > file type > all. This will save the file with the proper name and as the proper type. Note that cgminer does not support high concurrencies. For me, cgminer.conf would look something like:
{ "pools" : [ { "url" : "XXX", "user" : "XXX", "pass" : "XXX" } ], "auto-fan" : true, "gpu-engine" : "920", "gpu-fan" : "0-100", "gpu-memclock" : "1375", "gpu-powertune" : "20", "gpu-vddc" : "1.219", "temp-cutoff" : "85", "temp-overheat" : "80", "temp-target" : "75", "temp-hysteresis" : "3", "kernel" : "scrypt", "gputhreads" : "1", "thread_concurrency": "8192", "worksize": "256", "intensity" : "dynamic", "vectors" : "1" } 
You saw some settings similar to what we saw in Reaper's litecoin.conf. The other settings have to do with my card's clocks, voltage, and fan. This is covered in the overclocking section right below!
Overclocking (aka the risky part)
Okay, first off I'm not responsible if you cause damage to your parts. Please research safe overclock settings for your card. Second, don't be afraid. Modern hardware has many safety features in place that help prevent mayhem like me...lol jk this isn't a car insurance add. For your better understanding, become familiar with these terms:
No one setting controls how effectively you mine; what matters most when it comes to clocks is the ratio between your core/memory clocks. Generally, a ratio of 0.7 or below is best. You will need to experiment. If you're using cgminer, you can control card settings from the conf file. However, if you aren't, I recommend using MSI Afterburner as your overclocking tool. You will need to unlock some settings. Using my cgminer settings, MSI Afterburner looks like this. I have found these settings to be the most stable while bringing me a high hashrate.
Other people's optimum settings
You can check the sidebar for the hardware comparison chart, but it is rarely updated and has huge sways in results. It is a good starting place. The mods of this subreddit will be putting together an updated, more accurate list in the near future.
END
I hope all things go smoothly for you and that you've learned a lot! Please consider donating LTC to
My wallet: LiD41gjLjT5JL2hfVz8X4SRm27T3wQqzjk
The writer of the [Consolidated Litecoin Mining Guide] which helped get me started
The writer of the [Absolute Beginner's Litecoin Mining Guide] which also helped me get started
submitted by mycomputerisbacon to litecoinmining [link] [comments]

cgminer on ubuntu

Ok, new to bitcoin mining. Wanted to experiment and have a little fun.
Found a guide for installing guiminer (and wallet, etc...) on Windows and within minutes I am chipping away. Minor head scratches, but nothing over the top.
Ubuntu.....love ubuntu....really love linux. Installed bfgminer. Might as well have been staring out a window into a pitch black night. Scratched my head a few times, figured a few things out, scratched my head a few more times, figured some more stuff out. No real instructions on the web that made any sense to me beyond what I was already figuring out. Blah....blah.....it sat there and spun some numbers out rather cripticly on a command line interface of which I could make no sense out of. Checked my pool for the worker I set up for ubuntu and 00000. Windows is running away with itself. Stepped away to let it run for an hour.....come back....00000.
Install cgminer. Configure it, seemed a little easier but what do I know. It is doing the same, spinning cryptic nonsense that probably tells me to go sit on a plunger as far as I know. Ubuntu worker....00000.....windows worker going to beat the band.....
Is there a bitcoin miner for ubuntu that doesn't involve standing on one foot holding a chair in the air with the opposite hand while scratching your balls with the other hand, combined with the ability to read crypticese?
Thanks in advance......
submitted by jastrow to BitcoinBeginners [link] [comments]

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