Bitcoin Stack Exchange
Bitcoin Stack Exchange

Questions tagged [cpu]

Questions about Bitcoin in the context of CPUs (as opposed to GPU or ASIC mining)

42 questions
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How to configure CGMiner with CPU?

I'd like to start mining Bitcoins on a CPU for testing purposes. I've downloaded CGMiner, compiled it and created a config file without any problems, however starting it results in an error message: All devices disabled, cannot mine! What do I…
drakide
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What mining performance can we roughly expect from the Intel SHA extensions of the upcoming Skylake processor architecture?

Intel is scheduled to release their new x86 SkyLake microarchitecture in Q3 2015. Among other interesting features, it will introduce SHA extensions that will allow hardware acceleration of the Secure Hash Algorithm family, including SHA256 as used…
Will
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How to tell bitcoind to use more memory and CPU

I just updated my node to 0.12 and its going through its long verification process but I noticed that its not using very much memory/cpu pi 602 10.5 19.4 352220 184312 ? Ssl 21:57 1:28 /usr/local/bin/bitcoind…
xenostar
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Running a command line bitcoin CPU miner on ubuntu for slush's pool

I don't intend to do this long term as I am pretty sure the cost of the power would exceed the earnings, this is more for educational purposes. What I'm looking for is a command line miner for Ubuntu. What I've tried so far is using…
John
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Is there a bitcoin market for CPU time / memory space / disk space?

Bitcoin mining pools are like lending / borrowing cpu time, but it's only for hashing. Is there something more general; a market where you can lend and borrow cpu time, disk space and so on?
yhirai
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Does CPU mining become efficient as memory requirements increase?

I am focusing on an anti scrypt coin called Vertcoin which increases it's N-factor at a set interval. On their main page on bitcointalk it states that CPU computation will make gains as N-factor (memory requirements) increase. Can anyone explain as…
rdadkins
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4 answers

Should I mine bitcoins or litecoins?

I don't pay for my own power, but I have two problems mining. I am CPU mining at 250 mhash/s because my AMD Radeon HD 7800 series graphics card will only produce 4.0 mhash/s (the other problem I'm having that I don't understand) but my main question…
Chizy
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CPU Mining: Optimal Number of Threads

(I guess this question in principle applies likewise to Bitcoin, but given how un-profitable CPU mining of Bitcoin seems to be, this question actually arose with regards to Yacoin mining). I am currently using the AVX version of the 64-bit Windows…
Jonathan Gleason
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Does Bitcoin-QT use more CPU when its idle than during synchronization?

I am running the standard client on a micro Amazon EC2 instance. When I am synchronising Bitcoin with the network, it uses about 50% of the available CPU. After it is fully synchronised, I leave it alone and it cranks up to 100% by itself. What can…
ThePiachu
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How can i set up CPU mining on bfgminer?

I just downloaded Bitcoin Core and BFGminer on linux and I would like to start CPU mining just to see how it works, maybe later I'll buy ASIC. So, how can I configure CPU mining on BFGminer?
Greps
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Bitcoin is using +90% CPU power using Ubuntu 12.04?

I am using Ubuntu 12.04 and Bitcoin client v0.8.6.0-g03a7d67-beta and Qt version 4.8.1 as the GUI. My CPU is heating up and is automaticly shutting down after 30 minutes and sometimes after many hours. This is occurring both while synchronising…
Jonathan Rogiest
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Is mining bad for the CPU?

I've started to mine some Primecoin on a couple of spare VPS's, and it's turning out to be profitable. I'm also mining a bit on my laptop when I'm not using it (e.g. during lunch break). Will mining wear down (or have any other adverse effects on)…
Alfred Xing
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Can bitcoind still do CPU-based mining or was that feature removed?

I'm seeing conflicting claims about whether bitcoind can still do CPU-based mining. As far back as 2011 people were saying that feature was going to "soon" be removed. Was mining removed? By the way if mining is removed from bitcoind, what are the…
Friendly
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GPU mining slows down my ubuntu

I'm trying to mine using my CPU and GPU. When the CPU is set to use all its cores, I have no problems, but when I use my GPU, my desktop gets way too slow because unity uses it too I think, so I need to find a way to be able to use my GPU for mining…
user3781458
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Scrypt (Litecoin) memory / performance tradeoff

For Litecoin, if memory size is increased in processing the Scrypt algorithm, for example to 384 kB instead of 128 kB (and assuming likewise an L2 cache size of 384 kB), would the typical CPU architecture (x86, PPC, etc) be likely to see a…
Jeff Brower
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