Latest News (RSS): 5 months ago Two Years of LitecoinPool.org – The Winners

Getting Started

  1. Create a pool account. Register here.
  2. Download a miner. For ATI/AMD GPUs we suggest that you use cgminer 3.7.2 (Windows binary here), as it works well and is widely supported. Do not use the latest version of cgminer, as it may not work correctly. Make sure you have a look at the documentation about scrypt mining.
    For Nvidia GPUs, cudaMiner usually gives the best results.
    If you want to try mining with your CPU, use the optimized version of cpuminer.
  3. Configure your miner. Use our configuration wizard to get started.
    For manual configuration, connect your miner to the server closest to you:
    stratum+tcp://litecoinpool.org:3333(London, UK)
    stratum+tcp://us.litecoinpool.org:3333(New York, USA)
    stratum+tcp://us2.litecoinpool.org:3333(Los Angeles, USA)
    stratum+tcp://ltcpool5brio2gaj.onion:3333(Tor hidden service)
    If you are behind a firewall, you can also access Stratum on port 8080.
    The default credentials are:
    Username:your_username.1
    Password:1
    If you want, you can create additional workers on your account page, with names and passwords of your choice. Both the username and the password are case-sensitive. Never use your account password for any of your workers.
  4. Create a Litecoin address. Download the Litecoin client from the official website. After starting Litecoin-QT, click on the “Receive” tab and copy your address, then paste it on your account page so that you can receive payments.

Advanced Setup

If you have more than one miner (especially slow miners) running within a local network, it is best to use the Stratum proxy for Litecoin mining. This proxy allows you to achieve a lower rate of stale shares while reducing your bandwidth usage. The Python source is available here, and a binary for Windows here. You start the proxy on one of your machines as follows:

        mining_proxy -o litecoinpool.org -p 3333

Then you connect your miners to that machine on port 8332 with the usual pool worker username and password. For example, if the proxy is running on 192.168.1.123, you should connect your miners to http://192.168.1.123:8332 instead of directly to the pool. If you intend to use cgminer, version 3.1.1 is recommended. Versions 3.3.3 and later have a bug, and may not work correctly with the Stratum proxy.

FAQ

Would Litecoin mining be profitable for me?
That depends on many factors, including your hardware, the cost of electricity and the value you give to a litecoin. Check out our mining profitability calculator.
What hash rate should I expect from my hardware?
There is a mining hardware comparison on the Litecoin Wiki.
Can I use a Bitcoin ASIC miner to mine litecoins?
No, it's not possible. Litecoin uses an entirely different hashing algorithm.
Should I prefer cgminer or Reaper for GPU mining?
cgminer, hands down. Reaper is old, buggy, unmaintained software. cgminer used to have problems with recent ATI cards, but since these issues are now fixed there's really no reason to use Reaper anymore.
Can I use the same worker name and password for more than one physical miner?
Yes, but if you use different workers it is easier to track your miners' performance.
What's a share?
A share is a unit of reward that miners earn by submitting proofs of work (the result of hashing) to the pool. The term “share” originates from the reward system of proportional pools, whose total earnings are distributed among miners in proportion to the number of shares they submit.
In a PPS (pay-per-share) system, shares are paid directly to miners, indipendently of how many blocks the pool actually finds. The value of a share depends on two factors: the network difficulty and the share difficulty.
What is the network difficulty?
The network difficulty is a number (currently 5788.43332704) that gives an indication of how difficult it is to find a block. The Litecoin network automatically adjusts its difficulty every few days so that blocks are found on average every 2.5 minutes. This means that the more hashing power is on Litecoin, the harder it is to find a block.
What is the share difficulty?
The share difficulty is a number that gives an indication of how difficult it is to find a share. The lower this number, the more shares a miner will find at a given speed, and the lower their value. For this reason, the share difficulty does not affect miners' expected earnings.
Why does the pool report more shares than my miner?
This pool serves variable-difficulty work units, so when you solve a share the pool counts it with multiplicity, according to its difficulty. For example, if you solve a share that is four times as difficult as the baseline share, it gets counted as four shares.
Why variable-difficulty shares?
The technique of adapting the difficulty to each miner's hash rate allows the pool to measure workers' speed more precisely while keeping bandwidth usage optimal.
How does share difficulty influence my earnings?
Short answer: it doesn't.
Long answer: a higher/lower share difficulty does not mean you will be earning more/less, because your expected earnings are independent of the share difficulty: they only depend on your hash rate and on the network difficulty. A higher share difficulty can only increase the variance, but not in a significant way.
How is the value of a share (a.k.a. the PPS rate) computed?
The standard PPS formula is used: BS × (1 − F) / ND × (SD / 65536), where BS is the block subsidy (currently 50 LTC), F is the nominal fee (0.04), ND is the network difficulty, and SD is the share difficulty (expressed as a multiple of the minimum share difficulty, which is what cgminer displays).
Do block finders get extra reward?
No. That would go against one of the main goals of the PPS system, which is to minimize variance. It would also make miners who don't find blocks earn less, as the PPS fee would need to be adjusted upwards.
We do list recently found blocks and their finders, but only for transparency purposes.
I've just started mining and all my shares are being rejected, what's wrong?
People asking this are usually Bitcoin miners who didn't reconfigure their rigs for Litecoin, or who are trying to use a miner that doesn't support Litecoin at all (e.g. Phoenix). You should be using one of the following miners for Litecoin: cgminer, sgminer, bfgminer, cudaMiner, cpuminer. Configuring a GPU for Litecoin mining requires particular attention; please refer to our configuration wizard to get an idea of what settings you need.
Why doesn't the hash rate reported by the pool match that reported by my miner?
Because of how pooled mining works, the pool has no way of knowing your exact hash rate, so it can only estimate it based on how frequently you submit shares. After you start mining, it takes about 10 minutes for the estimates to become accurate. They will never be very precise, though; even if your miner's hash rate is steady, the pool estimate will keep fluctuating around the actual speed.
The pool keeps reporting a much lower hash rate than cgminer. What's going on?
If the estimate displayed on the site stays too low for more than 10 minutes, then you are almost certainly experiencing hardware errors.
cgminer checks every solution generated by your GPU, and if one turns out to be incorrect because of hardware errors it (rightfully) doesn't even submit it. Since pools can only estimate your hash rate based on how many solutions you submit in a given amount of time, their estimate will be lower than your real raw hashrate. This raw hashrate, which is correctly displayed by cgminer, is, however, not meaningful if the solutions your card generates are wrong.
You need to make sure that all (not just the top one) of the HW figures in cgminer are zero or next-to-zero; if that's not the case, you need to review your settings. Make sure you carefully read the documentation about scrypt mining provided with cgminer.
Remember that Litecoin mining puts a lot more stress on GPUs than Bitcoin mining, so you don't want to push your hardware too much.
What are stale shares?
Servers provide each miner with some unique data that the miner must use to find a share. This data needs to be updated every time a new block appears on the Litecoin network, and that's why servers must promptly notify miners when they detect a new block. Every second you keep on mining for the old block is wasted, because that block has already been found. If a new block is found before a submitted share hits the server, the share is marked as “stale”, and yields no reward.
Stale shares are caused by latency, which can happen at various levels. The most obvious cause is a high ping time to the server, which however shouldn't affect the stale rate by more than 0.5%.
I'm getting more than 2% of stale shares, is this normal?
No. On our Stratum servers, most miners achieve a stale rate well below 1%. If you're GPU mining, make sure the intensity parameter is not set too high on your miners. More generally, consider that anything that pushes your hardware too much can cause additional latency, which results in a higher rate of stale shares. Some software latency is sometimes unavoidable when GPU mining, but if your stale rate is above 2% then something probably needs to be fixed.
Should I set the --no-submit-stale option in cgminer?
The --no-submit-stale option tells cgminer to skip the submission of shares that it detects as stale. You should only set it after you have made sure that your other settings, such as intensity, aren't causing too much latency locally. Note that some of your submitted shares will still turn stale because of network latency, which is unavoidable.
What is Stratum?
Stratum is a network protocol for pooled mining, designed as a replacement for the now obsolete “getwork” protocol. It was originally proposed by Marek Palatinus (aka Slush), who also wrote a proxy for miners that could only understand the getwork protocol.
Today most mining software supports the Stratum protocol natively, but the Stratum proxy is still useful for reducing network bandwidth usage on large installations.
What is the “resume” extension to Stratum?
It is an extension to the original Stratum mining protocol, jointly designed by Slush and ckolivas, the maintainer of cgminer. If your mining pool supports the extension and your Internet connection has a hiccup, the server may still accept any shares that your miners found while disconnected, if they reconnect and submit them within a reasonable time. As simple as this may sound, it is actually tricky to implement this feature correctly, because Stratum is not a stateless protocol.
Why did my Google Authenticator codes suddenly stop working?
It might be because the time on your Google Authenticator app is not synced correctly. To make sure that you have the correct time, go to the main menu on the Google Authenticator app, and select “Settings”, “Time correction for codes”, “Sync now”.
What Android apps can I use to monitor my workers?
To name a few: PoolWatch, CryptCoin Monitor, Coin Pool Monitor.
What iPhone/iPad apps can I use to monitor my workers?
You can check your workers with Miner Stats or Pool Monitor.

Any Questions?

If you need further assistance, please send an email to support(at)litecoinpool.org. During business hours (8 AM UK time to 5 PM US/Pacific time), most support requests are answered within minutes. Alternatively, you can contact Pooler in the #litecoinpool channel on Freenode IRC, or ask on the forum.