Questions tagged [dag]

DAG stands for Directed Acyclic Graph and is a large data set that grows every 30,000 blocks. DAG files are used by miners for their Proof of Work (PoW) computation work.

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78
votes
5answers
143k views

What actually is a DAG?

I have tried googling it as well as finding it here. Many people here talk about it, but what actually is a DAG?
26
votes
3answers
89k views

What is the current DAG size? When do we expect to hit GPU limits?

I have two mining rigs running, one with 2GB GPUs and one with 8GB cards. Recently, the rig with the 2GB cards failed due to the inability to upload the DAG to the GPU. What's the current DAG size ...
18
votes
3answers
48k views

Where do I see the current DAG size?

Where do I see the current, exact DAG size? Is it being tracked on a website somewhere, or is it something I can check on my miner?
7
votes
1answer
9k views

Dag generation failure: Invalid Argument

I have been mining for a while now. I restarted my computer this evening and I have been receiving the error " DAG Generation Failure. Reason: Invalid argument" when running the same bat file I always ...
3
votes
2answers
2k views

Disable automatic pregeneration of DAG?

I am working on a private blockchain (currently block #16117). I have pregenerated the DAG for epoch 1 as well. So, I started the geth instance with --autodag=false. However, I still get the following ...
7
votes
2answers
2k views

Do i need to be synchronized to blockchain when creating DAG for mining on pool?

When mining for pool, the DAG has to be created. Before starting mining and DAG creation do i need to be synced to blockchain?
1
vote
0answers
5k views

Issue “grabbing DAG” for ethminer (but not for expanse)

I installed Geth, and successfully synced the blockchain. However, regardless of whether I use Ethminer, Ethminer with Stratum Proxy, or qtMiner; I always get the same error. It doesn't really throw ...
0
votes
2answers
7k views

Faster way to generate DAG?

From the Ethereum official documentation: 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 ...
0
votes
1answer
653 views

geth mining on 32bits host (raspberry pi) memory error

My objective is to create a private testnet, and mining it on a 32bits hardware (RPi3). The memory error I keep getting during DAG generation, if Im not mistaken, is excepted if I am running it on a ...