Ethereum Sign up or log in to customize your list._ Here's how it works: Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top up vote down vote favorite 1 The Ethereum frontier network has a customised proof of work algorithm called Ethash.What kind of computer hardware is required to mine with this proof of work algorithm?proof-of-work frontier mining up vote down vote You can mine ether using your computers graphics card(s) (GPU) as long as it has enough memory to hold and access the DAG efficiently.To be efficient and competitive you should select a card with high total memory bandwidth.You could technically also mine with your CPU, but the current difficulty on the main net is so high that you wouldn't mine ether in years.You can mine ether in the test net with your CPU, as the difficulty is not high there, but they aren't having any value, besides using them for testing.As you pointed put Ethereum uses its own Ethash algorithm to mine.

This algorithm is made to be memory hard to make it hard to develop ASICs for it.Its generates a 1GB+ DAG file, which needs to be replaced once in a while to mine.up vote 5 down vote You will need at least a 2GB RAM on your GPU to actually mine.CPU will be extremely hard to make any money unless you use a pool.Here's some resources: /mining/guides/how-to-mine-ethereum/ /categories/mining Your Answer Sign up or log in Sign up using Google Sign up using Email and Password Post as a guest Name Email discard By posting your answer, you agree to the privacy policy and terms of service.Browse other questions tagged proof-of-work frontier mining or ask your own question.The algorithm is memory hard and in order to fit the DAG into memory, it needs 1-2GB of RAM on each GPU.If you get Error GPU mining.you havent got enough memory.The GPU miner is implemented in OpenCL, so AMD GPUs will be 'faster' than same-category NVIDIA GPUs.

ASICs and FPGAs are relatively inefficient and therefore discouraged.To get openCL for your chipset and platform, try: The following instructions are, for the most part, relevant to any system with Ubuntu 14.04 and a Nvidia GPU.Setting up an EC2 instance for mining You check your cooling status: The official Frontier release of geth only supports a CPU miner natively.ethereum robinhoodWe are working on a GPU miner, but it may not be available for the Frontier release.bitcoin linux libraryGeth however can be used in conjunction with ethminer, using the standalone miner as workers and geth as scheduler communicating via JSON-RPC.bitcoin kullananThe C++ implementation of Ethereum (not officially released) however has a GPU miner.bitcoin url pool

It can be used from eth, AlethZero (GUI) and ethMiner (the standalone miner).You can install this via ppa on linux, brew tap on MacOS or from source.To install ethminer from source: To set up GPU mining you need a coinbase account.It can be an account created locally or remotely.bitcoin preis startethminer communicates with geth on port 8545 (the default RPC port in geth).litecoin redditYou can change this by giving the --rpcport option to geth.bitcoin salt lake cityEthminer will find get on any port.bitcoin assassinationNote that you need to set the CORS header with --rpccorsdomain localhost.mh/s in bitcoinYou can also set port on ethminer with -F http://127.0.0.1:3301.

Setting the ports is necessary if you want several instances mining on the same computer, although this is somewhat pointless.If you are testing on a private cluster, we recommend you use CPU mining instead.Also note that you do not need to give geth the --mine option or start the miner in the console unless you want to do CPU mining on TOP of GPU mining.If the default for ethminer does not work try to specify the OpenCL device with: --opencl-device X where X is 0, 1, 2, etc. When running ethminer with -M (benchmark), you should see something like: To debug the miner: Note hashrate info is not available in geth when GPU mining.Check your hashrate with ethminer, miner.hashrate will always report 0. ethminer can be used in conjunction with eth via rpc or you can use eth to GPU mine by itself:This is an archived post.You won't be able to vote or comment.geth crashing, memory leak?(self.ethereum)submitted by running debian on my mining rig and had a "fatal error:runtime:out of memory for the first time in almost a year of mining.

4 gigs of ram in my rig and after running eth it slowly goes from 3.3 memory usage, climbing to 20.. then pauses for a while and jumps to 80% or more before eventually crashing out.anyone have similar experiences?π Rendered by PID 13824 on app-162 at 2017-06-24 12:31:44.089465+00:00 running 3522178 country code: SG.The word mining originates in the context of the gold analogy for crypto currencies.Gold or precious metals are scarce, so are digital tokens, and the only way to increase the total volume is through mining it.This is appropriate to the extent that in Ethereum too, the only mode of issuance post launch is via the mining.Unlike these examples however, mining is also the way to secure the network by creating, verifying, publishing and propagating blocks in the blockchain.Ethereum Frontier like all blockchain technologies uses an incentive-driven model of security.Consensus is based on choosing the block with the highest total difficulty.Miners produce blocks which the others check for validity.

Among other well-formedness criteria, a block is only valid if it contains proof of work (PoW) of a given difficulty.Note that in Ethereum 1.1, this is likely going to be replaced by a proof of stake model.The proof of work algorithm used is called Ethash (a modified version of Dagger-Hashimoto) involves finding a nonce input to the algorithm so that the result is below a certain threshold depending on the difficulty.The point in PoW algorithms is that there is no better strategy to find such a nonce than enumerating the possibilities while verification of a solution is trivial and cheap.If outputs have a uniform distribution, then we can guarantee that on average the time needed to find a nonce depends on the difficulty threshold, making it possible to control the time of finding a new block just by manipulating difficulty.The difficulty dynamically adjusts so that on average one block is produced by the entire network every 12 seconds (ie., 12 s block time).This heartbeat basically punctuates the synchronisation of system state and guarantees that maintaining a fork (to allow double spend) or rewriting history is impossible unless the attacker possesses more than half of the network mining power (so called 51% attack).

Any node participating in the network can be a miner and their expected revenue from mining will be directly proportional to their (relative) mining power or hashrate, ie., number of nonces tried per second normalised by the total hashrate of the network.Ethash PoW is memory hard, making it basically ASIC resistant.This basically means that calculating the PoW requires choosing subsets of a fixed resource dependent on the nonce and block header.This resource (a few gigabyte size data) is called a DAG.The DAG is totally different every 30000 blocks (a 100 hour window, called an epoch) and takes a while to generate.Since the DAG only depends on block height, it can be pregenerated but if its not, the client need to wait the end of this process to produce a block.Until clients actually precache dags ahead of time the network may experience a massive block delay on each epoch transition.Note that the DAG does not need to be generated for verifying the PoW essentially allowing for verification with both low CPU and small memory.

As a special case, when you start up your node from scratch, mining will only start once the DAG is built for the current epoch.Note that mining 'real' Ether will start with the Frontier release.On the Olympics testnet, the Frontier pre-release, the ether mined have no value (but see Olympic rewards).The successful PoW miner of the winning block receives: Uncles are stale blocks, ie with parent that are ancestors (max 6 blocks back) of the including block.Valid uncles are rewarded in order to neutralise the effect of network lag on the dispersion of mining rewards, thereby increasing security.Uncles included in a block formed by the successful PoW miner receive 7/8 of the static block reward = 4.375 ether A maximum of 2 uncles allowed per block.Ethash uses a DAG (directed acyclic graph) for the proof of work algorithm, this is generated for each epoch, i.e every 30000 blocks (100 hours).The DAG takes a long time to generate.If clients only generate it on demand, you may see a long wait at each epoch transition before the first block of the new epoch is found.

However, the DAG only depends on block number, so it CAN and SHOULD be calculated in advance to avoid long wait at each epoch transition.geth implements automatic DAG generation and maintains two DAGS at a time for smooth epoch transitions.Automatic DAG generation is turned on and off when mining is controlled from the console.It is also turned on by default if geth is launched with the --mine option.Note that clients share a DAG resource, so if you are running multiple instances of any client, make sure automatic dag generation is switched on in at most one client.To generate the DAG for an arbitrary epoch: For instance geth makedag 360000 ~/.ethash.Note that ethash uses ~/.ethash (Mac/Linux) or ~/AppData/Ethash (Windows) for the DAG so that it can shared between clients.Our algorithm, Ethash (previously known as Dagger-Hashimoto), is based around the provision of a large, transient, randomly generated dataset which forms a DAG (the Dagger-part), and attempting to solve a particular constraint on it, partly determined through a block's header-hash.

It is designed to hash a fast verifiability time within a slow CPU-only environment, yet provide vast speed-ups for mining when provided with a large amount of memory with high-bandwidth.The large memory requirements mean that large-scale miners get comparatively little super-linear benefit.The high bandwidth requirement means that a speed-up from piling on many super-fast processing units sharing the same memory gives little benefit over a single unit.TODO: Content from formal requirements doc.TODO: Content from design decisions doc.Mining will be accomplished in one of two ways: either on CPU (and possibly the GPU, to be confirmed) with the Mist client or on the GPU though a combination of the Ethereum daemon and sgminer.An sgminer module for Ethash is expected to be released at some point during, but not necessarily before the Frontier Genesis.Communication between the external mining application and the Ethereum daemon for work provision and submission happens through the JSON-RPC API.