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Author Topic: Building a small CPU farm, need inputs regarding choice of cpu.  (Read 1599 times)
tromp
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August 03, 2015, 02:23:40 PM
 #21

might have a look at your cuckoo... if the bounty is still there...

Yep, still there at https://github.com/tromp/cuckoo

"GPU Speed Parity Bounty

$500 for an open source implementation for a consumer GPU that is as fast as a high-end Intel Core i7 running 16 threads. Again with N ranging over {2^28,2^30,2^32}.

Note that there is already a cuda_miner.cu, my attempted port of the edge trimming part of cuckoo_miner.c to CUDA, but while it seems to run ok for medium graph sizes, it crashes my computer at larger sizes, and I haven't had the chance to debug the issue yet (I prefer to let my computer work on solving 8x8 connect-4:-) Anyway, this could make a good starting point.

These bounties are to expire at the end of 2015. They are admittedly modest in size, but then claiming them might only require one or two insightful tweaks to my existing implementations."


It could be that my existing cuda code is working, but crashes at larger settings due to lack of free GPU memory on my iMac. So, if you could just run my code on a discrete nVidia GPU card and let me know if it works at larger settings, that would be helpful.
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MaxDZ8
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August 04, 2015, 05:34:31 AM
 #22

That link shows an intel Core i7 consistently performing much worse than a GTX580.
Absolutely not! That is not what you think it is! The fact that GPUs are in most Top50 clusters is absolutely coincidence!

</sarcasm>


(1) Not very competitive can mean a lot of things. Is it slower than an intel Core i7 or not?
(2) Also, how much effort has gone into developing yescript GPU miners?
(1) last time I checked the users provided way too little data to draw a conclusion; it seemed to me we were talking about 50% of CPU performance at same cost. Besides, I don't consider i7 to be widespread enough to be an installed base; I'm sure you guys think it's the minimum acceptable. It isn't.
(2) The same as usual I guess: they just hammered it till it works and I've been told it has been quite some work. I'm surprised it works at all especially on AMD CL.
MisO69
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August 07, 2015, 03:47:59 PM
 #23

I found some numbers on the 5820K mining Magi.
http://cryptomining-blog.com/4491-cpu-mining-the-coin-magi-xmg-what-can-you-expect/

5820K seem pretty neat. The question is: Buy 2-3 more expensive cpus or go on several cheaper models and try to overclock them a bit.

If you want Magi what you do is build yourself some GPU rigs using Nvidia cards. I'm not sure if its the 750ti or not but there is a card out there that does most bang for the buck. Then mine the most profitable GPU coin, sell them and buy Magi. CPU mining can still be done with each GPU rig you build but I wouldn't bother with that shit, its just a waste of time and electricity.

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August 07, 2015, 07:10:44 PM
 #24

Cryptozillah, Duh surfs gown owt?
BlackPanda
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August 08, 2015, 10:15:44 AM
 #25

CPU can indeed designed to mine but with results that are not in accordance with the price you spend on investment. no recommendation to mine through CPU

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August 08, 2015, 10:32:10 AM
 #26

I am about to build 4-6 CPU rigs with stuff i have laying around since my GPU mining days.

I have alot of Asrock H81-Pro boards sitting in alu frames.
So. I am about to buy some Intel socket 1150 cpu:s now.

What cpu is the best bang for the buck here ? I5 or I7 ?

I would need some inputs here.

I prefer the GPU than the CPU
mamahdedeh
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August 08, 2015, 12:13:19 PM
 #27

I am about to build 4-6 CPU rigs with stuff i have laying around since my GPU mining days.

I have alot of Asrock H81-Pro boards sitting in alu frames.
So. I am about to buy some Intel socket 1150 cpu:s now.

What cpu is the best bang for the buck here ? I5 or I7 ?

I would need some inputs here.


intel core i7 haswell generation with high GHz..
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